Doctor of Engineering, Waseda University

Inorganic compounds and inorganic materials chemistry, Inorganic industrial materials

Electrochemistry

Materials chemistry

Catalysts and Catalysis

Ceramics

2019
Shinshu University, Distinguished Professor

2018
Shinshu University, Research Initiative for Supra-Materials (RISM), Vice Director

2014 - 2018
Shinshu University, Center for Energy and Environmental Science (X-Breed), Vice Director

2013
Shinshu University, Professor

2007 - 2013
Shinshu University, Associate Professor

1999 - 2007
Shinshu University, Assistant Professor

1997 - 1999
Research Fellow of the Japan Society for the Promotion of Science

1995 - 1996
Toshiba Corporation

1996 - 1999, Waseda University, Graduate School, Division of Science and Engineering, Applied Chemistry

1993 - 1995, Waseda University, Graduate School, Division of Science and Engineering, Applied Chemistry

1989 - 1993, Waseda University, Faculty of Science and Engineering, Applied Chemistry

2024
The Electrochemical Society of Japan, Best Paper Award in ECSJ journal Electrochemistry
Daisuke Takimoto,* Keisuke Suzuki, Sho Hideshima, and Wataru Sugimoto, "Origin of the Adsorption-Controlled Redox Behavior of Quinone-Based Molecules: Importance of the Micropore Width", Electrochemistry, 91(7), 077006 (2023)

2023
Ministry of Education, Culture, Sports, Science and Technology, The Commendation for Science and Technology by the Minister of Education, Culture, Sports, Science and Technology, Awards for Science and Technology, Research Category

2020
The Electrochemical Society of Japan, Fellow of The Electrochemical Society of Japan

2018
The Electrochemical Society of Japan, Scientific Achievement Award of The Electrochemical Society of Japan
スーパーキャパシタおよび燃料電池触媒への応用を展望した導電性ナノシート，ナノ粒子の開発

2016
日本学術振興会, 平成２７年度特別研究員等審査会専門委員（書面担当）及び国際事業委員会書面審査員の表彰

2006
The Chemical Society of Japan, Young Researcher Presentation Award of The Chemical Society of Japan, The Chemical Society of Japan
2A1–34: 酸化ルテニウムナノ構造体の創製と電気化学キャパシタ特性（○杉本　渉・横島克典・高須芳雄）

2005
International Society of Electrochemistry, Oronzio De Nora Foundation Prize of ISE on Electrochemical Energy Conversion, International Society of Electrochemistry
Research on hydrous ruthenium oxides for supercapacitors and on the kinetics of methanol oxidation on fuel cell electrocatalysts

2004
The Electrochemical Society of Japan, Young Researcher Award (Sano Prize), The Electrochemical Society of Japan
機能性酸化物の合成と電気化学キャパシタへの応用

2004
The Electrochemical Society of Japan-Tokai Branch, Young Researcher ECS Award, The Electrochemical Society of Japan-Tokai Branch
酸化ルテニウム系大容量電気化学キャパシタ材料の合成

2003
The Electrochemical Society of Japan-The Committee of Electrolytic Science and Technology, Young Researcher Industrial Electrolysis Award, The Electrochemical Society of Japan-The Committee of Electrolytic Science and Technology
電極触媒の基礎研究

2002
The Chemical Society of Japan, Young Researcher Presentation Award, The Chemical Society of Japan
3C7―39: 酸化物/多孔質炭素複合材料の電気化学キャパシタ特性（○杉本渉・大沼岳史・村上泰・高須芳雄）

1998
The Ceramic Society of Japan-Kanto Branch, Best Presentation Award, The Ceramic Society of Japan-Kanto Branch
Nb6O12クラスターを含む低酸化Nbを含む化合物の合成と構造

1997
The Ceramic Society of Japan-Kanto Branch, Excellent Presentation Award, The Ceramic Society of Japan-Kanto Branch
Mg-Ti-V-O系スピネル固溶体の合成及び構造と導電性の関連

Redox Materials for Electrochemical Capacitors
Masanobu Chiku,* Mozaffar Abdollahifar, Thierry Brousse, George Z. Chen, Olivier Crosnier, Bruce Dunn, Krzysztof Fic, Chi-Chang Hu, Paweł Jeżowski, Adam Maćkowiak, Katsuhiko Naoi, Nobuhiro Ogihara, Naohisa Okita, Masashi Okubo, Wataru Sugimoto, Nae-Lih Wu
Electrochemistry, 94(7), 74002, 05 Jul. 2024, Refereed

Li-metal free “in aqua” lithiation and re-lithiation of protected graphite anode for 4-V class aqueous lithium-ion capacitor
Yusuke Sato, Omar Gómez Rojas, Sho Makino, Dai Mochizuki, Sho Hideshima, Wataru Sugimoto,*
J. Power Sources, 609, 234684, 11 May 2024, Refereed

Vertically aligned MXene bioelectrode prepared by freeze-drying assisted electrophoretic deposition for sensitive electrochemical protein detection
Sho Hideshima,* Yuta Ogata, Daisuke Takimoto, Yury Gogotsi, Wataru Sugimoto,*
Biosensors and Bioelectronics, 250, 116036, 12 Jan. 2024, Refereed

Origin of the Adsorption-Controlled Redox Behavior of Quinone-Based Molecules: Importance of the Micropore Width
Daisuke Takimoto,* Keisuke Suzuki, Sho Hideshima, and Wataru Sugimoto
Electrochemistry, 91(7), 77006, 09 Jun. 2023, Refereed

In Situ Electrical Detection of Methane Oxidation on Atomically Thin IrO₂ Nanosheet Films Down to Room Temperature
Yoshiaki Ishihara, Takanori Koitaya, Yuto Hamahiga, Wataru Sugimoto, Susumu Yamamoto, Iwao Matsuda, Jun Yoshinobu, Ryo Nouchi*
Adv. Mater. Interfaces, 10(18), 2300258, 01 Jun. 2023, Refereed

Confinement Effects on the Rate Performance of Redox Active Molecules for Pseudocapacitive Flowable Electrodes
Daisuke Takimoto,* Keisuke Suzuki, Sho Hideshima, Wataru Sugimoto
Electrochemistry, 91(4), 47005, 29 Mar. 2023, Refereed

Platinum nanosheets synthesized via topotactic reduction of single-layer platinum oxide nanosheets for electrocatalysis
Daisuke Takimoto,* Shino Toma, Yuya Suda, Tomoki Shirokura, Yuki Tokura, Katsutoshi Fukuda, Masashi Matsumoto, Hideto Imai, and Wataru Sugimoto*
Nat. Commun., 14(-), 19--, 09 Jan. 2023, Refereed
Corresponding

Symmetric Breakage-Induced Semimetallic State: Polymorphism in Ruthenate Nanosheets
Kazutaka Sonobe,* Satoshi Tominaka,* and Wataru Sugimoto
J. Am. Chem. Soc., 144(33), 15008-15012, 25 Jul. 2022, Refereed
Corresponding

Zero-Overpotential Redox Reactions of Quinone-Based Molecules Confined in Carbon Micropores
Daisuke Takimoto,* Keisuke Suzuki, Ryusuke Futamura, Taku Iiyama, Sho Hideshima, and Wataru Sugimoto
ACS Appl. Mater. Interfaces, 14(27), 31131-31139, 28 Jun. 2022, Refereed
Corresponding

Enhancement in the charge-transfer kinetics of pseudocapacitive iridium-doped layered manganese oxide
Ryota Saito, Hideki Tanaka, Katsuya Teshima, Daisuke Takimoto, Sho Hideshima, and Wataru Sugimoto*
Inorg. Chem., 61(11), 4566-4571, 08 Mar. 2022, Refereed
Corresponding

AlCl3-Graphite Intercalation Compounds as Negative Electrode Materials for Lithium-Ion Capacitors
Yamato Haniu, Hiroki Nara,* Seongki Ahn, Toshiyuki Momma,* Wataru Sugimoto and Tetsuya Osaka
JOURNAL OF MATERIALS CHEMISTRY A, 9(48), 27459-27467, 09 Nov. 2021, Refereed

Fabrication of Three-Dimensional Porous Materials with NiO Nanowalls for Electrocatalytic Oxygen Evolution", , 4(8), (2021)
Daisuke Takimoto,* Sho Hideshima, and Wataru Sugimoto
ACS Applied Nano Materials, 4(8), 8059-8065, 19 Jul. 2021, Refereed

Platinum Group Metal-based Nanosheets: Synthesis and Application towards Electrochemical Energy Storage and Conversion
Wataru Sugimoto* and Daisuke Takimoto,
Chem. Lett., 50(-), 1304-1212, 16 Jun. 2021, Refereed

Effect of fluoroethylene carbonate and vinylene carbonate additives on full-cell optimization of Li-ion capacitors
Seongki Ahn, Minori Fukushima, Hiroki Nara, Toshiyuki Momma*, Wataru Sugimoto, Tetsuya Osaka
Electrochem. commun., 122, 106905, Jan. 2021, Refereed

Scalable Design of Two‐Dimensional Oxide Nanosheets for Construction of Ultrathin Multilayer Nanocapacitor
Muhammad Shuaib Khan,* Hyung-Jun Kim, Yoon-Hyun Kim, Yasuo Ebina, Wataru Sugimoto, Takayoshi Sasaki, and Minoru Osada*
SMALL, 16, 2003485, Aug. 2020, Refereed

Effect of Mass Balancing on Cell Performance and Electrochemical Investigation of Sn–Ni Alloy as Anode for Li-Ion Capacitors
Seongki Ahn, Yusuke Nakamura, Hiroki Nara, Toshiyuki Momma*, Wataru Sugimoto, Tetsuya Osaka
J. Electrochem. Soc., 167(13), 130512, Aug. 2020, Refereed

Size dependent fast Li ion storage based on size regulated TiO2(B) nanosheet electrodes with vertical, horizontal and random alignment
Tomohiro Yoshida, Daisuke Takimoto, Dai Mochizuki, Wataru Sugimoto*
Electrochemistry, 88(4), 305-309, Jun. 2020, Refereed

Direct preparation of core-shell platinum cathode in membrane electrode assembly catalyst layer for polymer electrolyte fuel cell
Hiroshi Fukunaga*, Kazuhiro Kachi, Daisuke Takimoto, Dai Mochizuki, Wataru Sugimoto,
Int. J. Hydrogen Energy, 45(28), 14547-14551, May 2020, Refereed

Improved Water-stable Protected Anodes with Low Resistance for Aqueous Energy Storage Devices
Yusuke Sato, Sho Makino, Dai Mochizuki, Sho Hideshima*, and Wataru Sugimoto*
Electrochemistry, 88(2), 139-142, Apr. 2020, Refereed

Synergetic Effect of RuO2 Nanosheets as a Redox Active Binder for Aqueous Electrochemical Capacitors: The Case of MnO2
Ryota Saito, Yusuke Sasto, Daisuke Takimoto, Sho Hideshima, and Wataru Sugimoto*
Electrochemistry, 88(2), 107-111, Apr. 2020, Refereed

Influence of Li-salts on Cycle Durability of Sn-Ni Alloy Anode for Lithium-ion Capacito
Yusuke Nakamura, Hiroki Nara*, Seongki Ahn, Toshiyuki Momma,* Wataru Sugimoto and Tetsuya Osaka
Electrochemistry, 88(2), 74-78, Feb. 2020, Refereed

Synthesis of Stacked Graphene-Sn Composite as a High-Performance Anode for Lithium-Ion Capacitors
Seongki Ahn, Yamato Haniu, Hiroki Nara, Toshiyuki Momma,* Wataru Sugimoto, and Tetsuya Osaka
J. Electrochem. Soc., 167(4), 040519, Feb. 2020, Refereed

Application of Sn-Ni Alloy as an Anode for Lithium-Ion Capacitors with Improved Volumetric Energy and Power Density
Seongki Ahn, Yusuke Nakamura, Hiroki Nara, Toshiyuki Momma*, Wataru Sugimoto, Tetsuya Osaka
J. Electrochem. Soc., 166(15), A3615–A3619, Oct. 2019, Refereed

Electrodeposited Si˗O˗C as a High-Rate Performance Anode for Li˗ion Capacitor
Seongki Ahn, Toshiyuki Momma*, Wataru Sugimoto, Tetsuya Osaka
J. Electrochem. Soc., 166(12), A2683-A2688, Aug. 2019, Refereed

Two-Dimensional Effects on the Oxygen Reduction Reaction and Irreversible Surface Oxidation of Metallic Ru Nanosheets and Nanoparticles
Daisuke Takimoto*, Wataru Sugimoto*, Qiuyi Yuan, Naoki Takao, Takanori Itoh, Truong Vinh Truong Duy, Tsukuru Ohwaki, Hideto Imai*
ACS Appl. Nano Mater., 2(9), 5743-5751, Aug. 2019, Refereed

Conductive Nanosized Magnéli-Phase Ti4O7 with a Core@Shell Structure
Daisuke Takimoto, Yosuke Toda, Satoshi Tominaka, Dai Mochizuki, and Wataru Sugimoto*
Inorg. Chem., 58(10), 7062-7068, May 2019, Refereed

Electrochemical and Spectroscopic Analysis of the Ionogel–Electrode Interface
David S. Ashby, Ryan H. DeBlock , Christopher S. Choi, Wataru Sugimoto, and Bruce Dunn*
ACS Appl. Mater. Interfaces, 11(12), 12088–12097, Feb. 2019, Refereed

Vertically Aligned Reduced Graphite Oxide Nanosheet Film and its Application in High-Speed Charge/Discharge Electrochemical Capacitor
Dai Mochizuki,* Ryo Tanaka, Sho Makino, Yusuke Ayato, Wataru Sugimoto*
ACS Appl. Energy Mater., 2(2), 1033-1039, Jan. 2019, Refereed

Oxidized Ti3C2 MXene nanosheets for dye-sensitized solar cells
Chunxiang Dall'Agnese, Yohan Dall'Agnese, Babak Anasori, Wataru Sugimoto and Shogo Mori*
New J. Chem., 42(20), 16446-16450, Sep. 2018, Refereed

Model electrode study of Ru@Pt core-shell nanosheet catalysts: Pure two-dimensional growth via surface limited redox replacement
Jeerapat Nutariya,* Eri Kuroiwa, Daisuke Takimoto, Zhongrong Shen, Dai Mochizuki, Wataru Sugimoto*
Electrochim. Acta, 283, 826-833, Jul. 2018, Refereed

High-performance hybrid supercapacitors enabled by protected lithium negative electrode and "water-in-salt" electrolyte
Ming Zhang, Sho Makino, Dai Mochizuki, Wataru Sugimoto*
J. Power Sources, 396, 498-505, Jun. 2018, Refereed

Conducting Nanosheets and Nanoparticles for Supercapacitors and Fuel Cell Electrocatalysts
Wataru Sugimoto
Electrochemistry, 86(6), 281–290, Jun. 2018, Refereed, Invited

Uncovering the real active sites of ruthenium oxide for the carbon monoxide electro-oxidation reaction on platinum: The catalyst acts as a co-catalyst
Pierre-Yves Olu, Tomohiro Ohnishi, Dai Mochizuki, Wataru Sugimoto*
J. Electroanal. Chem., 810, 109-118, Jan. 2018, Refereed

4 V Aqueous hybrid supercapacitors based on dual electrolyte technologies
Sho Makino, Dai Mochizuki, Wataru Sugimoto,*
Curr. Opin. Electrochem., 6(1), 127-130, Dec. 2017, Refereed, Invited

Lateral Size Effects of Two-dimensional IrO2 Nanosheets towards the Oxygen Evolution Reaction Activity
Daisuke Takimoto, Yusuke Ayato, Dai Mochizuki, and Wataru Sugimoto,*
Electrochemistry, 85(12), 779-783, Dec. 2017, Refereed

High-temperature dielectric responses in all-nanosheet capacitors
Muhammad Shuaib Khan, Minoru Osada*, Hyung-Jun Kim, Yasuo Ebina,Wataru Sugimoto, and Takayoshi Sasaki
Jpn. J. Appl. Phys., 56(6S1), 06GH09, 01 Jun. 2017, Refereed

Perspective—A Guideline for Reporting Performance Metrics with Electrochemical Capacitors: From Electrode Materials to Full Devices
A. Balducci, D. Belanger, T. Brousse, J.W. Long, W. Sugimoto
J. Electrochem. Soc. 164, (2017)., 164(7), A1487–A1488, 17 May 2017, Refereed

Ru-core@Pt-shell nanosheet for fuel cell electrocatalysts with high activity and durability
Daisuke Takimoto, Tomohiro Ohnishi, Jeerapat Nutariya, Zhongrong Shen, Yusuke Ayato, Dai Mochizuki, Arnaud Demortière, Adrien Boulineau, Wataru Sugimoto*
J. Catal., 345, 207–215, Dec. 2016, Refereed

Synthesis and Oxygen Electrocatalysis of Iridium Oxide Nanosheets
Daisuke Takimoto, Katsutoshi Fukuda, Shu Miyasaka, Takanobu Ishida, Yusuke Ayato, Dai Mochizuki, Wataru Shimizu, Wataru Sugimoto*
Electrocatalysis, 8, 144-150, Dec. 2016, Refereed

Materials for Electrochemical Capacitors
Thierry Brousse, Daniel Bélanger, Kazumi Chiba, Minato Egashira, Frédéric Favier, Jeffrey Long, John R. Miller, Masayuki Morita, Katsuhiko Naoi, Patrice Simon, Wataru Sugimoto
in Springer Handbook of Electrochemical Energy, 1st ed., 495-561, Nov. 2016, Refereed

Insights into the enhanced tolerance to carbon monoxide on model tungsten trioxide-decorated polycrystalline platinum electrode
Pierre-Yves Olu,* Tomohiro Ohnishi, Yusuke Ayato, Dai Mochizuki, Wataru Sugimoto*
Electrochem. commun., 71, 69-72, Oct. 2016, Refereed

Room temperature performance of 4 V aqueous hybrid supercapacitor using multi-layered lithium-doped carbon negative electrode
Sho Makino, Rie Yamamoto, Shigeyuki Sugimoto, and Wataru Sugimoto*
J. Power Sources, 326, 711-716, Sep. 2016, Refereed

Suppression of CO Adsorption on PtRu/C Catalysts Modified with Metallic Ruthenium Nanosheets
Daisuke Takimoto, Tomohiro Ohnishi, Yusuke Ayato, Dai Mochizuki, and Wataru Sugimoto*
J. Electrochem. Soc., 163(5), F367-F371, May 2016, Refereed

RuO2 Nanosheet Modified Pt3Co/C Cathode: Mitigating Activity Loss at High Temperature and High Potential Conditions
Daisuke Takimoto, Christophe Chauvin, and Wataru Sugimoto*
J. Electrochem. Soc., 163(2), F11–F15, Feb. 2016, Refereed

Correlation in Structure and Properties of Highly-porous Graphene Monoliths Studied with a Thermal Treatment Method
Shuwen Wang, Aarón Morelos-Gómez, Zhongwei Lei, Mauricio Terrones, Kenji Takeuchi, Wataru Sugimoto, Morinobu Endo, Katsumi Kaneko*
Carbon, 96, 174-183, Jan. 2016, Refereed

Hunting for Monolayer Oxide Nanosheets and Their Architectures
Hyung-Jun Kim, Minoru Osada,* Yasuo Ebina, Wataru Sugimoto, Kazuhito Tsukagoshi, and Takayoshi Sasaki
Sci. Rep., 6, 19402, 2016, Refereed

Preparation of Mesoporous Bimetallic Au–Pt with a Phase- Segregated Heterostructure Using Mesoporous Silica
Masaki Kitahara, Saori Kubara, Azusa Takai, Daisuke Takimoto, Shinpei Enomoto, Yusuke Yamauchi, Wataru Sugimoto, and Kazuyuki Kuroda*
Chem., Eur. J., 21(52), 19142-19148, Dec. 2015, Refereed

Suppression of CO Adsorption on PtRu/C and Pt/C with RuO2 Nanosheets
Daisuke Takimoto, Tomohiro Ohnishi, and Wataru Sugimoto*
ECS Electrochem. Lett., 4(5), F35-F37, May 2015, Refereed

Towards Implantable Bio-Supercapacitors: Pseudocapacitance of Ruthenium Oxide Nanoparticles and Nanosheets in Acids, Buffered Solutions, and Bioelectrolytes
Sho Makino, Takayuki Ban and Wataru Sugimoto*
J. Electrochem. Soc., 162(5), A5001-A5006, May 2015, Refereed

Oxygen Reduction Reaction of Hemoglobin on Indium-Tin-Oxide Electrodes and Its Application to Biofuel Cell Cathode
Yusuke Ayato and Wataru Sugimoto
ECS Transactions, 66(39), 29–37, 2015, Refereed

Achieving 100% Utilization of Reduced Graphene Oxide by Layer-by-Layer Assembly: Insight into the Capacitance of Chemically-Derived Graphene in Monolayer State
Zhongwei Lei, Takahiro Mitsui, Hiroki Nakafuji, Masayuki Itagaki, and Wataru Sugimoto*
J. Phys. Chem. C, 118(13), 6624–6630, Apr. 2014, Refereed

Preferential {100} etching of boron-doped diamond electrodes and diamond particles by CO2 activation
Junfeng Zhang, Takaaki Nakai, Masaharu Uno, Yoshinori Nishiki, Wataru Sugimoto*
Carbon, 70, 207-214, Apr. 2014, Refereed

All-Nanosheet Ultrathin Capacitors Assembled Layer-by-Layer via Solution-Based Processes
Chengxiang Wang, Minoru Osada, Yasuo Ebina, Bao-Wen Li, Kosho Akatsuka, Katsutoshi Fukuda, Wataru Sugimoto, Renzhi Ma, and Takayoshi Sasaki*
ACS Nano, 8(3), 2658-2666, Mar. 2014, Refereed

Model Electrode Studies of the Electrostatic Interaction between Electrochemically Dissolved Pt Ions and RuO2 Nanosheets
Qingfeng Liu, Koodlur S. Lokesh, Christophe Chauvin, and Wataru Sugimoto*
J. Electrochem. Soc., 161(3), F259-F262, Mar. 2014, Refereed

Influence of the RuO2 Nanosheet Content in RuO2 Nanosheet-Pt/C Composite Toward Improved Performance of Oxygen Reduction Electrocatalysts
Christophe Chauvin, Takahiro Saida and Wataru Sugimoto*
J. Electrochem. Soc., 161(3), F318-F322, Mar. 2014, Refereed

Evidence of Strong Metal-Support Interaction between Pt and Crystalline RuO2 Nanosheets by In-Situ AFM
Qingfeng Liu, Christophe Chauvin and Wataru Sugimoto*
J. Electrochem. Soc., 161(3), F360-F363, Mar. 2014, Refereed

Development of a 4.2 V aqueous hybrid electrochemical capacitor based on MnO2 positive and protected Li negative electrodes
Wataru Shimizu, Sho Makino, Keita Takahashi, Nobuyuki Imanishi, Wataru Sugimoto*
J. Power Sources, 241, 572-577, Nov. 2013, Refereed

Improving oxygen reduction reaction activity and durability of 1.5 nm Pt by addition of ruthenium oxide nanosheets
Daisuke Takimoto, Christophe Chauvin, Wataru Sugimoto*
Electrochem. commun., 33, 123-126, Aug. 2013, Refereed

A gas-diffusion cathode coated with oxide-catalyst for polymer electrolyte fuel cells using neither platinum catalyst nor carbon catalyst-support
Yoshio Takasu*, Hiroshi Fukunaga, Hong-Sheng Yang, Tatsuya Ohashi, Masatoshi Suzuki, Wataru Sugimoto
Electrochimica Acta, 105, 224-229, Aug. 2013, Refereed

Synthesis of Electro-deposited Ordered Mesoporous RuOx via Lyotropic Liquid Crystal and Application towards Micro-supercapacitors
Sho Makino, Yusuke Yamauchi,* and Wataru Sugimoto*
J. Power Sources, 227, 153-160, Apr. 2013, Refereed

Fabrication of Ruthenium Metal Nanosheets via Topotactic Metallization of Exfoliated Ruthenate Nanosheets
Katsutoshi Fukuda,* Jun Sato, Takahiro Saida, Wataru Sugimoto,* Yasuo Ebina, Tatsuo Shibata, Minoru Osada, and Takayoshi Sasaki
Inorg. Chem., 52(5), 2280-2282, Feb. 2013, Refereed

Effect of the boron content on the steam activation of boron-doped diamond electrodes
Junfeng Zhang, Takaaki Nakai, Masaharu Uno, Yoshinori Nishiki, Wataru Sugimoto*
Carbon, 65, 206-213, 2013, Refereed

Colossal Change in Capacitance of VO2 near the Metal-Insulator Transition
Wataru Shimizu, Yuto Shinohara, and Wataru Sugimoto*
Electrochemistry, 81(10), 787-788, 2013, Refereed

Electrochemical Capacitor Behavior of RuO2 Nanosheets in Buffered Solution and Its Application to Hybrid Capacitor
Sho Makino, Takayuki Ban, and Wataru Sugimoto*
Electrochemistry, 81(10), 795-797, 2013, Refereed

Lateral Size Effect on Electrochemical Capacitor Performance of Reduced Graphite Oxide Nanosheets
Zhongwei Lei, Toshio Sakai, and Wataru Sugimoto*
Electrochemistry, 81(10), 873-876, 2013, Refereed

Effect of Nanosheet Size on Activity and Durability of RuO2 Nanosheet Pt/C Catalys
Christophe Chauvin, Qingfeng Liu, Takahiro Saida, Koodlur Sannegowda Lokesh, Toshio Sakai, and Wataru Sugimoto*
ECS Trans., 50(2), 1583-1588, 2013, Refereed

4-V Class Aqueous Hybrid Electrochemical Capacitor with Battery-like Capacity
Sho Makino, Yuto Shinohara, Takayuki Ban, Wataru Shimizu, Keita Takahashi, Nobuyuki Imanishi and Wataru Sugimoto*
RSC Advances, 2(32), 12144-12147, Dec. 2012, Refereed

Catalytic etching of synthetic diamond crystallites by iron
Tatsuya Ohashi, Wataru Sugimoto, Yoshio Takasu*
Appl. Surf. Sci., 258(20), 8128-8133, Aug. 2012, Refereed

Synthesis of ordered mesoporous ruthenium by lyotropic liquid crystals and its electrochemical conversion to mesoporous ruthenium oxide with high surface area
Wataru Sugimoto,* Sho Makino, Ryota Mukai, Yoshiaki Tatsumi, Katsutoshi Fukuda, Yoshio Takasu, Yusuke Yamauchi*
J. Power Sources, 204, 244-248, Apr. 2012, Refereed

Photochromogenic Nanosheet Crystallites of Tungstate with a 2D Bronze Structure
Katsutoshi Fukuda,* Kosho Akatsuka, Yasuo Ebina, Minoru Osada, Wataru Sugimoto, Mutsumi Kimura, and Takayoshi Sasaki*
Inorg. Chem., 51(3), 1540-1543, Feb. 2012, Refereed

Catalytic Etching of {100}-oriented Diamond with Fe, Co, Ni, and Pt Nanoparticles under Hydrogen
Tatsuya Ohashi, Wataru Sugimoto, Yoshio Takasu*
DIAMOND AND RELATED MATERIALS, 20(8), 1165-1170, Aug. 2011, Refereed

Asymmetric electrochemical capacitors. Stretching the limits of aqueous electrolytes
Jeffrey W. Long,* Daniel Belanger, Thierry Brousse, Wataru Sugimoto, Megan B. Sassin, and Olivier Crosnier
MRS Bull., 36(7), 513-522, Jul. 2011, Refereed

Steam activation of boron doped diamond electrodes
Tatsuya Ohashi, Junfeng Zhang, Yoshio Takasu, Wataru Sugimoto*
Electrochimica Acta, 56(16), 5599-5604, Jun. 2011, Refereed

Oxygen Reduction Reaction Activity of Pt/Graphene Composites with Various Graphene Size
Jun SATO, Kazuki HIGURASHI, Katsutoshi FUKUDA, Wataru SUGIMOTO*
Electrochemistry, 79(5), 337-339, May 2011, Refereed

Methanol Adsorption and Oxidation Behavior of Various Nanostructured Ruthenium-Oxides in Acidic Electrolyte
Takahiro SAIDA,Yoshio TAKASU, Wataru SUGIMOTO*
Electrochemistry, 79(5), 371-373, May 2011, Refereed

Self-Embedment of Small Rectangular Parallelepiped Platinum Particle Array in Etch Pits on {100} Planes of Diamond Crystallites
Tatsuya Ohashi, Wataru Sugimoto, Yoshio Takasu*
Bull. Chem. Soc. Jpn., 84(4), 276-278, Apr. 2011, Refereed

Graphene Nanoplatelets via Exfoliation of Platelet Carbon Nanofibers and Its Electric Double Layer Capacitance
Jun Sato, Yoshio Takasu, Katsutoshi Fukuda, Wataru Sugimoto*
Chem. Lett., 40(1), 44-45, Jan. 2011, Refereed

Conductivity of Ruthenate Nanosheets Prepared via Electrostatic Self-Assembly: Characterization of Isolated Single Nanosheet Crystallite to Mono- and Multilayer Electrodes
Jun Sato, Hisato Kato, Mutsumi Kimura, Katsutoshi Fukuda,* Wataru Sugimoto*
LANGMUIR, 26(23), 18049-18054, Dec. 2010, Refereed

Structural analyses of RuO2-TiO2/Ti and IrO2-RuO2-TiO2/Ti anodes used in industrial chlor-alkali membrane processes
Yoshio Takasu,* Wataru Sugimoto, Yoshinori Nishiki, Shuji Nakamatsu
J. Appl. Electrochem., 40(10), 1789-1975, Oct. 2010, Refereed

Oxygen reduction characteristics of several valve metal oxide electrodes in HClO4 solution
Yoshio Takasu,* Masatoshi Suzuki, Hongsheng Yang, Tatsuya Ohashi, Wataru Sugimoto
Electrochimica Acta, 55(27), 8220-8229, Sep. 2010, Refereed

Synthesis of Mesoporous Carbons Using a Fullerenol-Based Precursor Solution via Nanocasting with SBA-15
Yoji Doi,Azusa Takai, Sho Makino,Radhakrishnan Logudurai, Norihiro Suzuki, Wataru Sugimoto,* Yusuke Yamauchi,* Kazuyuki Kuroda
Chemistry Letters, 39(7), 777-779, Jul. 2010, Refereed

Titanium Oxide Nanosheet Modified PtRu/C Electrocatalyst of Direct Methanol Fuel Cell Anode
Takahiro Saida, Naoki Ogiwara, Wataru Sugimoto,* Yoshio Takasu
J. Phys. Chem. C, 114(31), 13390-13396, Jul. 2010, Refereed

Oxygen-reduction activity of silk-derived carbons
Tomoya Iwazaki, Hongsheng Yang, Ryoujin Obinata, Wataru Sugimoto and Yoshio Takasu*
Journal of Power Sources, 195(18), 5840-5847, Jul. 2010, Refereed

Electrochemical Capacitor Properties of NiO in Ionic Liquids
Sho Makino, Yoshio Takasu, and Wataru Sugimoto*
Chemistry Letters, 39(6), 544-545, Jun. 2010, Refereed

Synthesis of Nanosheet Crystallites of Ruthenate with an α-NaFeO2-Related Structure and Its Electrochemical Supercapacitor Property
Katsutoshi Fukuda, Takahiro Saida, Jun Sato, Mihoko Yonezawa, Yoshio Takasu and Wataru Sugimoto*
INORGANIC CHEMISTRY, 49(10), 4391-4393, Apr. 2010, Refereed

Effect of Temperature and Adsorption Potential on the Electro-oxidation of Adsorbed Carbon Monoxide on Carbon Supported PtRu
Tomoyuki Kawaguchi, Wataru Sugimoto,* Yoshio Takasu
Electrochemistry, 78(1), 36-41, Jan. 2010, Refereed

Enhanced activity and stability of Pt/C fuel cell anodes by the modification with ruthenium-oxide nanosheets
Takahiro Saida, Wataru Sugimoto,*Yoshio Takasu
Electrochimica Acta, 55(3), 857-864, Jan. 2010, Refereed

Swelling, intercalation, and exfoliation behavior of layered ruthenate derived from layered potassium ruthenate
Katsutoshi Fukuda, Hisato Kato, Jun Sato, Wataru Sugimoto,* Yoshio Takasu
JOURNAL OF SOLID STATE CHEMISTRY, 182(11), 2997-3002, Nov. 2009, Refereed

Preparation of Mesoporous Pt-Ru Alloy Fibers with Tunable Compositions via Evaporation-Mediated Direct Templating (EDIT) Method Utilizing Porous Anodic Alumina Membranes
Azusa Takai, Takahiro Saida, Wataru Sugimoto, Liang Wang, Yusuke Yamauchi,* Kazuyuki Kuroda,*
CHEMISTRY OF MATERIALS, 21(14), 3414-3423, Jul. 2009, Refereed

Catalytic roughening of surface layers of BDD for various applications
Tatsuya Ohashi, Wataru Sugimoto, Yoshio Takasu*
Electrochimica Acta, 54(22), 5223-5229, Apr. 2009, Refereed

An Examination of the Oxygen Reduction Reaction on RuO2-based Oxide Coatings Formed on Titanium Substrates
Yoshio Takasu *, Kyosuke Oohori, Norihiro Yoshinaga, Wataru Sugimoto
CATALYSIS TODAY, 146(1-2), 248-252, Mar. 2009, Refereed

High oxygen-reduction activity of silk-derived activated carbon
Tomoya Iwazaki, Ryoujin Obinata, Wataru Sugimoto and Yoshio Takasu*
Electrochemistry Communications, 11(2), 376-378, Feb. 2009, Refereed

Swelling of Layered Potassium Ruthenate into Nanosheet Crystallites
Katsutoshi Fukuda, Hisato Kato, Wataru Sugimoto,* Yoshio Takasu
in Solid-State Chemistry of Inorganic Materials VII, edited by P.M. Woodward, J.F. Mitchell, S.L. Brock, J.S.O. Evans (Mater. Res. Soc. Symp. Proc. Volume 1148E, Warrendale, PA, 2009), 75(8), PP3-36, Jan. 2009, Refereed

Layer-by-layer Self-assembly of Unilamellar Nanosheet Crystallites of Ruthenium Oxides
Katsutoshi Fukuda, Hisato Kato, Wataru Sugimoto,* Yoshio Takasu
in Transparent Conductors and Semiconductors for Optoelectronics, edited by J.D. Perkins, T.O. Mason, J.F. Wager, Y. Shigesato (Mater. Res. Soc. Symp. Proc. Volume 1109E, Warrendale, PA, 2009), 156(3), B03-21, Jan. 2009, Refereed

Activity and Durability of Ternary PtRuIr/C for Methanol Electro-oxidation
Dongsheng Geng, Daisuke Matsuki, Jiajia Wang, Tomoyuki Kawaguchi, Wataru Sugimoto*, Yoshio Takasu
J. Electrochem. Soc., 156(3), B397-B402, Jan. 2009, Refereed

Catalytic Excavation and Graphitization of Activated Carbon by Cobalt Nanoparticles
Tomoya Iwazaki, Toshiro Semba, Shunsuke Konishi, Takahiro Sezai, Yasushi Murakami,Wataru Sugimoto, and Yoshio Takasu*
Chemistry Letters, 37(12), 1194-1195, Dec. 2008, Refereed

Oxygen reduction behavior of rutile-type iridium oxide in sulfuric acid solution
Norihiro Yoshinaga, Wataru Sugimoto, Yoshio Takasu*
Electrochimica Acta, 54(2), 566-573, Dec. 2008, Refereed

Oxygen reduction behavior of RuO2/Ti, IrO2/Ti and IrM (M: Ru, Mo, W, V)Ox/Ti binary oxide electrodes in a sulfuric acid solution
Yoshio Takasu,* Norihiro Yoshinaga, Wataru Sugimoto, "
Electrochem. commun., 10(4), 668-672, Apr. 2008, Refereed

Evaluation of the Redox Behavior of Hydrous Ruthenium Oxides: Effect ofTemperature and Acid Concentration on the electrochemical Behavior of Layered Ruthenium Oxide
Wataru Sugimoto,* Toshiaki Ohta, Katsunori Yokoshima, Yoshio Takasu
Electrochemistry, 75(8), 645-648, Aug. 2007, Refereed

Development of Materials and Evaluation Methods for PEFCs
Yoshio Takasu,* Wataru Sugimoto, Masaru Yoshitake
Electrochemistry, 75(2), 105-114, Feb. 2007, Refereed

Charge storage mechanism of nanostructured anhydrous and hydrous ruthenium-based oxides
W. Sugimoto,* K. Yokoshima, Y. Murakami, Y. Takasu
Electrochimica Acta, 52(4), 1742-1748, Dec. 2006, Refereed

Effect of the crystal plane on the catalytic etching behavior of diamond crystallites by cobalt nanoparticles
Shunsuke Konishi, Tatsuya Ohashi, Wataru Sugimoto, and Yoshio Takasu*
Chemistry Letters, 35(11), 1216-1217, Nov. 2006, Refereed

Electrochemical supercapacitor behavior of nanoparticulate rutile-type Ru1-xVxO2
Katsunori Yokoshima, Takuyoshi Shibutani, Masashi Hirota, Wataru Sugimoto,* Yasushi Murakami, Yoshio Takasu
J. Power Sources, 160(2), 1480-1486, Oct. 2006, Refereed

Performance of ternary PtRuRh/C electrocatalyst with varying Pt :Ru : Rh ratio for methanol electro-oxidation
Tomoyuki Kawaguchi, Yasuhiro Rachi, Wataru Sugimoto, Yasushi Murakami, Yoshio Takasu*
J. Appl. Electrochem., 36(10), 1117-1125, Oct. 2006, Refereed

Catalytic creation of channels in the surface layers of highly oriented pyrolytic graphite by cobalt nanoparticles
S. Konishi, W. Sugimoto, Y. Murakami, Y. Takasu*
Carbon, 44(11), 2338-2340, Sep. 2006, Refereed

Catalytic Formation of Nanochannels in the Surface Layers of Diamonds by Metal Nanoparticles
Y. Takasu,* S. Konishi, W. Sugimoto, Y. Murakami
Electrochem. Solid State Lett., 9(7), C114-C177, Jul. 2006, Refereed

Preparation of a Novel Organic Derivative of the Layered Perovskite Bearing HLaNb2O7・nH-O Interlayer Surface Trifluoroacetate Groups
Y. Takeda, H. Suzuki, K.Notsu, W. Sugimoto, Y. Sugahara*
Mater. Res. Bull., 41(4), 834-841, Apr. 2006, Refereed

Co-catalytic effect of nanostructured ruthenium oxide towards electro-oxidation of methanol and carbon monoxide
W. Sugimoto,* T. Saida, Y. Takasu
Electrochem. commun., 8(3), 411-415, Mar. 2006, Refereed

Fabrication of thin-film, flexible, and transparent electrodes composed of ruthenic acid nanosheets by electrophoretic deposition and application to electrochemical capacitors
Sugimoto, W;* Yokoshima, K; Ohuchi, K; Murakami, Y; Takasu, Y
J. Electrochem. Soc., 153(2), A255-A260, Feb. 2006, Refereed

Investigation on the redox behavior of rutile-type Ti1-xVxO2
K. Yokoshima;W. Sugimoto*; Y. Murakami;Y. Takasu
Electrochemistry, 73(12), 1026-1029, Dec. 2005, Refereed

Dependence of the Preparation Temperature of Pt0.7Co0.3/C Catalysts on the Structure of the Alloy Particles and the Carbon Supports
Y. Takasu,* R. Matsuyama, S. Konishi, W. Sugimoto, Y. Murakami
Electrochem. Solid-State Lett., 8(9), B34-B37, Sep. 2005, Refereed

Catalytic linear grooving of graphite surface layers by Pt, Ru, and PtRu nanoparticles
Y. Takasu;* S. Konishi;R. Miyoshi;K. Nukii;T. Matsuse;W. Sugimoto;Y. Murakami
Chem. Lett., 34(7), 1008-1009, Jul. 2005, Refereed

Preparation of a transparent and flexible self-standing film of layered titania/isostearate nanocomposite
Matsumoto, T;* Iyi, N; Kaneko, Y; Kitamura, K; Masaki, S; Imai, T; Sugimoto, W; Takasu, Y; Murakami, Y
J. Mater. Res., 20(5), 1308-1315, May 2005, Refereed

Proton and Electron Conductivity in Hydrous Ruthenium Oxides Evaluated by Electrochemical Impedance Spectroscopy: The Origin of Large Capacitance
W. Sugimoto,* H. Iwata, K. Yokoshima, Y. Murakami, Y. Takasu
J. Phys. Chem. B, 109(15), 7330-7338, Apr. 2005, Refereed

Incorporation of ethylenediamine as a bi-layer in the interlayer space of tetratitanic acid by re-stacking exfoliated nanosheets
W. Sugimoto,* K. Ohuchi, Y. Murakami, Y. Takasu
Bull. Chem. Soc. Jpn., 78(4), 633-637, Apr. 2005, Refereed

Kinetics of CH3OH oxidation on PtRu/C studied by impedance and CO stripping voltammetry
Sugimoto, W;* Aoyama, K; Kawaguchi, T; Murakami, Y; Takasu, Y
J. Electroanal. Chem., 576(2), 215-221, Mar. 2005, Refereed

Particle Growth Behavior of Carbon-Supported Pt, Ru, PtRu Catalysts Prepared by an Impregnation Reductive-Pyrolysis Method for Direct Methanol Fuel Cell Anodes
T.Kawaguchi, W.Sugimoto,* Y.Murakami, Y.Takasu
J. Catal., 229(1), 176-184, Jan. 2005, Refereed

Electrical and Magnetic Properties of Ion-Exchangeable Layered Ruthenates
W. Sugimoto,* M. Omoto, K. Yokoshima, Y. Murakami, Y. Takasu,
J. Solid State Chem., 177(12), 4542-4545, Dec. 2004, Refereed

Electrochemical Capacitor Behavior of Layered Ruthenic Acid Hydrate
Wataru Sugimoto,* Hideki Iwata, Yasushi Murakami, and Yoshio Takasu
J. Electrochem. Soc., 151(8), A1181-A1187, Jun. 2004, Refereed

塩触媒ゾル―ゲル法による非晶質酸化物ミクロ多孔体の合成[Amorphous Microporous Oxide Prepared by a Salt Catalyzed Sol-Gel Process]
田中一彦，村上　泰，杉本　渉，高須芳雄[K. Tanaka, Y. Murakami, W. Sugimoto, Y. Takasu]
化学と教育[Kagaku to Kyoiku], 52(4), 271-274, May 2004, Refereed

Temperature dependence of the oxidation of carbon monoxide on carbon supported Pt, Ru, andPtRu
T.Kawaguchi, W.Sugimoto,* Y.Murakami, Y.Takasu
Electrochemistry Communications, 6(5), 480-483, May 2004, Refereed

Microporous Silica Particles Prepared by the Salt-Catalytic Sol-Gel Process with Extremely Low Content of Water
Y. Murakami,* K. Tanaka, Y. Takechi, S. Takahashi, Y. Nakano, T. Matsumoto, W. Sugimoto, Y. Takasu
J. Sol-Gel Sci. Tech., 29(1), 19-24, Jan. 2004, Refereed

Evaluation of the pseudocapacitance in RuO2 with a RuO2/GC thin film electrode
W. Sugimoto,* T. Kizaki, K. Yokoshima, Y. Murakami, and Y. Takasu
Electrochimica Acta, 49(2), 313-320, Jan. 2004, Refereed

Effects of the surface area of carbon support on the characteristics of highly-dispersed Pt-Ru particles as catalysts for methanol oxidation
Y. Takasu,* T. Kawaguchi, W. Sugimoto, Y. Murakami
Electrochimica Acta, 48(25-26), 3861-3868, Nov. 2003, Refereed

Preparation of Ruthenic Acid Nanosheets and Utilization of Its Interlayer Surface for Electrochemical Energy Storage
W. Sugimoto,* H. Iwata, Y. Yasunaga, Y. Murakami, and Y. Takasu
Angew. Chem. Int. Ed., 42(34), 4092-4096, Sep. 2003, Refereed

塩触媒ゾルーゲル法による酸化チタンミクロ多孔体の合成[Microporous titanium oxide prepared by a salt catalytic sol-gel process]
田中一彦，村上　泰，杉本　渉，高須芳雄[K. Tanaka, Y. Murakami, W. Sugimoto, Y. Takasu]
化学と教育[Kagaku to Kyoiku], 51(7), 437-438, Jul. 2003, Refereed

A layered tungstic acid H2W2O7 center dot nH(2)O with a double-octahedral sheet structure: Conversion process from an aurivillius phase Bi2W2O9 and structural characterization
M.Kudo, H.Ohkawa, W.Sugimoto, N.Kumada, Z.Liu, O.Terasaki, Y.Sugahara*
INORGANIC CHEMISTRY, 42(14), 4479-4484, Jul. 2003, Refereed

Electrocatalytic Oxidation of Methanol and Related Chemical Species on Ultrafine Pt andPtRu Particles Supported on Carbon
Y. Takasu*, W. Sugimoto, Y. Murakami
Catalysis Surveys from Asia, 7(1), 21-29, Apr. 2003, Refereed

Characteristics of Highly Active PtRu/C Anode Catalysts for DMFC
Y. Takasu,* H. Itaya, T. Kawaguchi, W. Sugimoto, and Y. Murakami
Stud. Surf. Sci. Catal., 145(25-26), 279-282, Mar. 2003, Refereed

Intercalation Behavior of n-Alkylamines into the Interlayer Space of a Protonated Form of a Layered Perovskite Derived from an Aurivillius Phase Bi2SrTa2O9
Y. Tsunoda, W. Sugimoto, and Y. Sugahara*
Chem. Mater., 15(3), 632-635, Jan. 2003, Refereed

Reactions of Alkoxyl-Derivatives of a Layered Perovskite with Alcohols: Substitution Reactions on the Interlayer Surface of a Layered Perovskite
H. Suzuki, K. Notsu, Y. Takeda, W. Sugimoto, and Y. Sugahara*
Chem. Mater., 15(3), 636-641, Jan. 2003, Refereed

Electrophoretic deposition of negatively charged tetratitanate nanosheets and transformation into preferentially oriented TiO2(B) Film
W. Sugimoto,* O. Terabayashi, Y. Murakami, Y. Takasu
J. Mater. Chem., 12(12), 3814-3818, Sep. 2002, Refereed

モデル触媒電極法を用いたPt超微粒子のメタノール酸化反応の解析[Investigation of Methanol Oxidation by a Model Catalyst Electrode Method]
三好　龍，杉本　渉，村上　泰，高須芳雄*[R. Miyoshi, W. Sugimoto, Y. Murakami, Y. Takasu*]
表面科学[J. Surf. Sci. Soc. Jpn.], 23(8), 503-508, Aug. 2002, Refereed

Conversion of AurivilliusPhases, Bi2ANaNb3O12 (A=Sr or Ca), into the Protonated Forms of Layered Perovskite via Acid Treatment
W. Sugimoto, M. Shirata, K. Kuroda, and Y. Sugahara*
Chem. Mater., 14(7), 2946-2952, Jun. 2002, Refereed

Charge Storage Capabilities of Rutile-Type RuO2-VO2 Solid Solution for Electrochemical Supercapacitors
W. Sugimoto,* T. Shibutani, Y. Murakami, Y. Takasu
Electrochem. Solid-State Lett., 5(7), A170-A172, May 2002, Refereed

Microporous Structure of Alumina Prepared by a Salt Catalytic Sol-Gel Process
K. Tanaka, T. Imai, Y. Murakami,* T. Matsumoto, W. Sugimoto, and Y. Takasu
Chem. Lett., 2002(1), 110-111, Jan. 2002, Refereed

Development of Oxide Electrodes for Electrochemical Supercapacitors
Y. Takasu, M. Shimizu, T. Shibutani, T. Ohnuma, W. Sugimoto, and Y. Murakami
Proc. Electrochem. Soc. "Advances in Electrochemical Capacitors and Hybrid Power Systems", PV2002-7(8), 107-115, 2002, Refereed

Electrochemical Supercapacitor Properties of RuO2-based Crystalline Material
W. Sugimoto, T. Shibutani, Y. Murakami, and Y. Takasu
Proc. Electrochem. Soc. "Micropower and Microdevices", PV2002-25(12), 87-94, 2002, Refereed

The Effect of the Nano and Microstructure of PtRu/C Electrocatalysts Towards Methanol and Carbon Monoxide Oxidation
W. Sugimoto, T. Kawaguchi, Y. Murakami, and Y. Takasu
Mater. Res. Soc. Symp. Proc., "Solid-State Ionics-2002", 756(3), FF6.4.1-FF6.4.6, 2002, Refereed

金属酸化物を用いる新しいエネルギー貯蔵法：電気化学キャパシタ[Application of Metal Oxides to Energy Storage: Electrochemical Supercapacitors]
杉本　渉;高須　芳雄[W. Sugimoto, Y. Takasu]
粉体工学会誌[J. Powder Tech. Japan], 38(12), 876-887, Dec. 2001, Refereed

Microporous Structure of Titanium Oxide Prepared by a Salt Catalytic Sol-Gel Process
K. Tanaka, Y. Murakami,* T. Imai, T. Matsumoto, S. Furuno, W. Sugimoto, and Y. Takasu
Chem. Lett., 2001(12), 1280-1281, Dec. 2001, Refereed

Preparation and HREM Characterization of a Protonated Form of a Layered Perovskite Tantalate from an Aurivillius Phase Bi2SrTa2O9 via Acid Treatment
Y. Tsunoda, M. Shirata, W. Sugimoto, Z. Liu, O. Terasaki, K. Kuroda, Y. Sugahara*
Inorg. Chem., 40(23), 5768-5771, Nov. 2001, Refereed

Molybdenum Oxide/Carbon Composite Electrodes as Electrochemical Supercapacitors
W. Sugimoto,* T. Ohnuma, Y. Murakami, and Y. Takasu
Electrochem. Solid-State Lett., 4(9), A145-A147, Jul. 2001, Refereed

Effects of the addition of Calcium on the Pseudocapacitance of Ruthenium Oxide Electrodes
Y. Takasu,* T. Ohnuma, S. Mizutani, W. Sugimoto, and Y. Murakami
Electrochemistry, 69(6), 493-494, Jun. 2001, Refereed

Size Effects of Ultrafine Pt-Ru Particles on the Electrocatalytic Oxidation of Methanol
Y. Takasu,* H. Itaya, T. Iwazaki, R. Miyoshi, T. Ohnuma, W. Sugimoto and Y. Murakami
Chem. Commun., 2001(4), 341-342, Jan. 2001, Refereed

Molybdenum Oxide/Activated Carbon Composite Electrodes as Electrochemical Supercapacitors
T. Ohnuma, W. Sugimoto, Y. Murakami, and Y. Takasu
Proc. Electrochem. Soc. "Advanced Batteries and Super Capacitors", PV2001-21(12), 641-647, 2001, Refereed

Conversion of an Aurivillius Phase Bi2SrNaNb3O12 into its Protonated Form via Treatment with Various Mineral Acids
M. Shirata, Y. Tsunoda, W. Sugimoto, and Y. Sugahara
Mater. Res. Soc. Symp. Proc., "Solid-State Chemistry of Inorganic Materials III", 658, GG6.24.1-GG6.24.6, 2001, Refereed

Effect of structure of carbon-supported PtRu electrocatalysts on the electrochemical oxidation of methanol
Y. Takasu,* T. Fujiwara, Y. Murakami, K. Sasaki, M. Oguri, T. Asaki, W. Sugimoto
J. Electrochem. Soc., 147(12), 4421-4427, Dec. 2000, Refereed

金属酸化物を用いた大容量電気化学キャパシタ[Surface Chemistry of Oxide Electrodes with Large Capacitance]
杉本　渉，高須　芳雄[W. Sugimoto, Y. Takasu]
表面[Hyomen], 38(9), 452-459, Sep. 2000, Refereed

Size Effects of Platinum Particles on the Electro-oxidation of Methanol in an Aqueous Solution of HClO4
Takasu, Y;* Iwazaki, T; Sugimoto, W; Murakami, Y
Electrochemistry Communications, 2(9), 671-674, Sep. 2000, Refereed

Synthesis and Structures of Reduced Niobates with Four Perovskite-Like Layers and Their Semiconducting Properties
W. Sugimoto, H. Ohkawa, M. Naito, Y. Sugahara,* and K. Kuroda
J. Solid State Chem., 148(2), 508-512, Dec. 1999, Refereed

Pseudocapacitance of Molybdenum Oxide Particles Highly Dispersed on Glassy Carbon Surface
Takasu,Y;* Ohnuma, T; Sugimoto, W; Murakami, Y
Electrochemistry, 67(12), 1187-1188, Dec. 1999, Refereed

New Conversion Reaction of an Aurivillius Phase into Protonated Forms of the Layered Perovskite by the Selective Leaching of the Bismuth Oxide Sheet
W. Sugimoto, M. Shirata, Y. Sugahara,* and K. Kuroda
J. Am. Chem. Soc., 121(49), 11602-11603, Nov. 1999, Refereed

Synthesis of Reduced Layered Titanoniobates KTi1-xNb1+xO5
W. Sugimoto, N. Hirota, K. Mimuro, Y. Sugahara,* and K. Kuroda
Mater. Lett., 39(3), 184-187, May 1999, Refereed

Synthesis and Structural Study of the KNb4O6-type Compound
W. Sugimoto, K. Mimuro, Y. Sugahara, and K. Kuroda
J. Ceram. Soc. Japan, 107(4), 318-321, Apr. 1999, Refereed

Synthesis of Na1-xLnxNbO3 (Ln=La, Nd, Sm and Gd) and Their Structures and Electrical Properties
W. Sugimoto, M. Naito, Y. Sugahara, and K. Kuroda
Mater. Res. Soc. Symp. Proc., "Solid-State Chemistry of Inorganic Materials II", 547(4), 267-272, 1999, Refereed

Synthesis and Structures of Carrier Doped Titanates with the Ruddlesden-Popper Structure (Sr0.95La0.05)n+1TinO3n+1 (n=1, 2)
W. Sugimoto, M. Shirata, M. Takemoto, S. Hayami, Y. Sugahara, and K. Kuroda*
Solid State Ionics, 108(1-4), 315-319, May 1998, Refereed

The Relationship Between Structural Variation and Electrical Properties in the Spinel MgV2-xTixO4 (0≤x≤1.8) System
W. Sugimoto, H. Yamamoto, Y. Sugahara, and K. Kuroda
J. Phys. Chem. Solids, 59(1), 83-89, Jan. 1998, Refereed

The Rare-Earth Dependence on the Solid Solution Formation and Electrical Properties of KCa2-xRxNb3O10 (R=Nd, Sm, Gd, and Ce)
D. Hamada, W. Sugimoto, Y. Sugahara, and K. Kuroda
J. Ceram. Soc. Japan, 105(4), 284-287, Apr. 1997, Refereed

Preparation of Stoichiometric and Nonstoichiometric Magnesium Titanate Spinels
W. Sugimoto, N. Kaneko, Y. Sugahara, and K. Kuroda
J. Ceram. Soc. Japan, 105(2), 101-105, Feb. 1997, Refereed

Synthesis of A1-xA'xNbO3 (A=Na+, K+; A'=La3+, Sr2+) and Its Electrical Properties
W. Sugimoto, T. Tahara, Y. Sugahara, and K. Kuroda
Mater. Res. Soc. Symp. Proc., "Solid-State Chemistry of Inorganic Materials", 453(9), 361-366, 1997, Refereed

Synthesis and Electrical Property of MgTi2-xVxO4
W. Sugimoto, H. Yamamoto, Y. Sugahara, and K. Kuroda
Advances in Superconductivity, VII(9), 401-404, Dec. 1995, Refereed

in Inorganic Nanosheets and Nanosheet-Based Materials
Wataru Sugimoto and Dai Mochizuki, Joint work, Energy Storage Systems
Springer Japan, 315-329 19 Apr. 2017
ISBN:10.1007/978-4-431-56496-6

in Springer Handbook of Electrochemical Energy, 1st ed. (Cornelia Breitkopf, Karen Swider-Lyons (Eds.))
Thierry Brousse, Daniel Bélanger, Kazumi Chiba, Minato Egashira, Frédéric Favier, Jeffrey Long, John R. Miller, Masayuki Morita, Katsuhiko Naoi, Patrice Simon, Wataru Sugimoto, Joint work, Materials for Electrochemical Capacitors
Springer-Verlag Berlin Heidelberg, 495-561 Nov. 2016
ISBN:978-3-662-46656-8

Encyclopedia of Applied Electrochemistry, Springer (Eds.: Gerhard Kreysa, Ken-ichiro Ota, Robert F. Savinell)
Wataru Sugimoto, Joint work, Ruthenium Oxides as Supercapacitor Electrodes
Springer, 1813-1821 16 Apr. 2014
ISBN:978-1-4419-6995-8

Encyclopedia of Applied Electrochemistry, Springer (Eds.: Gerhard Kreysa, Ken-ichiro Ota, Robert F. Savinell)
Wataru Sugimoto, Joint work, Graphene (or Reduced Graphite Oxide Nanosheets)
Springer, 954-963 16 Apr. 2014
ISBN:978-1-4419-6995-8

1994
The Ceramic Society of Japan

1997
The Chemical Society of Japan

1999
The Electrochemical Society of Japan

2003
Catalysis Society fo Japan

2008
the Society of Fiber Science and Technology, Japan

1996
Materials Research Society

2000
The Electrochemical Society

2001
International Society of Electrochemistry

Oct. 2001
American Chemical Society

Ruthenic Acid Nanosheet and Production Method Thereof, US7514065, US2004191160, US2004-809896, Patent right
Y. Takasu, Y. Murakami, W. Sugimoto

Electrode catalyst for electrochemical reaction, process for producing the electrode catalyst and electrode for electrochemical reaction having the electrode catalyst, US7,858,551, US2007-0212594, US2007-715868, Patent right
Yoshio Takasu, Yasushi Murakami, Wataru Sugimoto, Yuji Yamada, Masaharu Uno, Yoshinori Nishiki, Tsuneto Furuta

Electrode catalyst for electrochemical reaction, process for producing the electrode catalyst and electrode for electrochemical reaction having the electrode catalyst, EP1832342, EP2007-4815, Patent right
Takasu, Yoshio; Murakami, Yasushi; Sugimoto, Wataru; Yamada, Yuji; Uno, Masaharu; Nishiki, Yoshinori; Furuta, Tsuneto