Ph. D., Shinshu University

Environmental Photochemistry

Fundamental physical chemistry, Photochemistry

2015
Shinshu University Professor

2010
Shinshu University Assosiate Professor

2007
Shinshu University Assistant Professor

2006 - 2007
Georgia Institute of Technology, Research Scholar

2000 - 2007
Shinshu University Research Associate

1999 - 2000
Research Center for Advanced Energy Conversion, Nagoya University Post-Doctoral Researcher

Neutral buffered electrolytes guarantee ideal band-edge pinning for semiconductor photoanodes
Yosuke Kageshima, Hiromu Kumagai, Katsuya Teshima, Kazunari Domen, Hiromasa Nishikiori
Chem. Sci., 16, 14088-14097, 10 Jul. 2025

Enhanced Photoelectrochemical Hydrogen Evolution over Crystalline Cu2Sn0.38Ge0.62S3 Particles Grown from LiCl-RbCl Flux
Yosuke Kageshima, Tatsuya Kanazawa, Akifumi Uno, Hiromu Kumagai, Hikari Minamisawa, Masaomi Horita, Tomohiko Yamakami, Katsuya Teshima, Kazunari Domen, Hiromasa Nishikiori
ACS Catal., 15(6), 4892-4900, 07 Mar. 2025

Photoinduced cooling effect of water-retentive composite of TiO2 and saponite
Yosuke Kageshima, Koharu Yagawa, Katsuya Teshima, Hiromasa Nishikiori
Appl. Clay Sci., 267, 107712, 24 Jan. 2025

Photocatalytic degradation of organic dyes using titania modified with adsorbent nanolayers
Hiromasa Nishikiori, Yosuke Kageshima, Manami Sakurahara, Sho Noguchi, Katsuya Teshima
Res. Chem. Intermed., 50, 6001-6015, 05 Nov. 2024

Aliovalent metal cation doping of La5Ti2AgO7S5 particles for improved photocatalytic and photoelectrochemical water splitting
Yosuke Kageshima, Shiino Otsuka, Ryunosuke Iwaya, Haruto Yonehara, Katsuya Teshima, Kazunari Domen, Hiromasa Nishikiori
Chem. Commun., 60, 13059-13062, 17 Oct. 2024

Precise analyses of photoelectrochemical reactions on particulate Zn0.25Cd0.75Se photoanodes in nonaqueous electrolytes using Ru bipyridyl complexes as a probe
Yosuke Kageshima, Hiroto Takano, Mika Nishizawa, Fumiaki Takagi, Hiromu Kumagai, Katsuya Teshima, Kazunari Domen, Hiromasa Nishikiori
Chem. Sci., 15, 6679-6689, 16 Apr. 2024

Hydrogen-evolving photocathodes consisting of Cu2SnxGe1-xS3 particles synthesized by polymerized complex method and sulphurization
Yosuke Kageshima, Yusuke Ooka, Hiromu Kumagai, Fumiaki Takagi, Katsuya Teshima, Kazunari Domen, Hiromasa Nishikiori
Sustainable Energy Fuels, 7, 5342-5351, 21 Sep. 2023

Photothermal Boosting of Photocatalytic Hydrogen Evolution Induced by Defects and Cocatalysts on TiO2
Yosuke Kageshima, Hiroto Inuzuka, Hiromu Kumagai, Bunsho Ohtani, Katsuya Teshima, Hiromasa Nishikiori
J. Phys. Chem. C, 127(37), 18327-18339, 08 Sep. 2023

Hydrogen evolution and electric power generation through photoelectrochemical oxidation of cellulose dissolved in aqueous solution
Yosuke Kageshima, Hiromasa Wada, Katsuya Teshima, Hiromasa Nishikiori
Appl. Catal. B, 327, 122431, 15 Jun. 2023

Impact of ball milling on the hydrogen evolution performance of Cu2Sn0.38Ge0.62S3 photocatalytic particles synthesized via a flux method
Yosuke Kageshima, So Kato, Sota Shiga, Fumiaki Takagi, Hikari Minamisawa, Masaomi Horita, Tomohiko Yamakami, Katsuya Teshima, Kazunari Domen, Hiromasa Nishikiori
ACS Appl. Mater. Interfaces, 15(10), 13108-13120, 28 Feb. 2023

Formation of alkali metal titanate nanocrystals using titanium alkoxide
Nishikiori, Hiromasa; Ebara, Hiroyoshi; Takayama, Hitoshi; Adachi, Shinnosuke; Kobayashi, Naoya; Hayashi, Fumitaka; Teshima, Katsuya;
RESEARCH ON CHEMICAL INTERMEDIATES, 47(12), 5135-5153, Dec. 2021

Observation of excited state proton transfer between the titania surface and dye molecule by time-resolved fluorescence spectroscopy
Nishikiori, Hiromasa; Kageshima, Yosuke; Hooshmand, Nasrin; El-Sayed, Mostafa A.; Teshima, Katsuya;
JOURNAL OF PHYSICAL CHEMISTRY C, 125(40), 21958-21963, 14 Oct. 2021

A semitransparent particulate photoanode composed of SrTiO3 powder anchored on titania nanosheets
Kageshima, Yosuke; Momose, Haruka; Takagi, Fumiaki; Fujisawa, Sora; Yamada, Tetsuya; Teshima, Katsuya; Domen, Kazunari; Nishikiori, Hiromasa;
SUSTAINABLE ENERGY & FUELS, 5(19), 4850-4857, 07 Oct. 2021

Accelerated photoelectrochemical oxygen evolution over a BaTaO2N photoanode modified with cobalt-phosphate-loaded TiO2 nanoparticles
Takagi, Fumiaki; Taguchi, Suzuna; Kageshima, Yosuke; Teshima, Katsuya; Domen, Kazunari; Nishikiori, Hiromasa;
APPLIED PHYSICS LETTERS, 119(12), 123902, 20 Sep. 2021

Insights into the electrocatalytic oxidation of cellulose in solution toward applications in direct cellulose fuel cells
Kageshima, Yosuke; Ojima, Yurina; Wada, Hiromasa; Koh, Sangho; Mizuno, Masahiro; Teshima, Katsuya; Nishikiori, Hiromasa;
JOURNAL OF PHYSICAL CHEMISTRY C, 125(27), 14576-14582, 15 Jul. 2021

Z-Scheme overall water splitting using ZnxCd1-xSe particles coated with metal cyanoferrates as hydrogen evolution photocatalysts
Kageshima, Yosuke; Gomyo, Yui; Matsuoka, Hikaru; Inuzuka, Hiroto; Suzuki, Hajime; Abe, Ryu; Teshima, Katsuya; Domen, Kazunari; Nishikiori, Hiromasa;
ACS CATALYSIS, 11(13), 8004-8014, 02 Jul. 2021

Photocatalytic and photoelectrochemical hydrogen evolution from water over Cu2SnxGe1-xS3 Particles
Kageshima, Yosuke; Shiga, Sota; Ode, Tatsuki; Takagi, Fumiaki; Shiiba, Hiromasa; Htay, Myo Than; Hashimoto, Yoshio; Teshima, Katsuya; Domen, Kazunari; Nishikiori, Hiromasa;
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 143(15), 5698-5708, 21 Apr. 2021

Photoelectrochemical complete decomposition of cellulose for electric power generation
Yosuke Kageshima, Takumi Yoshimura, Sangho Koh, Masahiro Mizuno, Katsuya Teshima, Hiromasa Nishikiori
ChemCatChem, 13(6), 1530-1537, 19 Mar. 2021

Photocatalytic oxygen evolution triggered by photon upconverted emission based on triplet-triplet annihilation
Kageshima, Yosuke; Tateyama, Shutaro; Kishimoto, Fuminao; Teshima, Katsuya; Domen, Kazunari; Nishikiori, Hiromasa;
PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 23(9), 5673-5679, 07 Mar. 2021

Boosted Hydrogen-Evolution Kinetics Over Particulate Lanthanum and Rhodium-Doped Strontium Titanate Photocatalysts Modified with Phosphonate Groups
Yosuke Kageshima, Toshiki Kawanishi, Daisuke Saeki, Katsuya Teshima, Kazunari Domen, Hiromasa Nishikiori
Angewandte Chemie International Edition, 60(7), 3654-3660, 15 Feb. 2021

Enhanced photoelectrochemical performance from particulate ZnSe:Cu(In,Ga)Se2 photocathodes during solar hydrogen production via particle size control
Fumiaki Takagi, Yosuke Kageshima, Katsuya Teshima, Kazunari Domen, Hiromasa Nishikiori
SUSTAINABLE ENERGY & FUELS, 5(2), 412-423, 21 Jan. 2021

Photocatalytic activity of Cu-doped titania prepared by controlling the Cu distribution
Nishikiori, Hiromasa; Suehara, Koumei; Teshima, Katsuya;
Journal of the Ceramic Society of Japan, 129(1), 83-90, Jan. 2021

Photoelectrochemical properties of particulate CuGaSe2 and CuIn0.7Ga0.3Se2 photocathodes in nonaqueous electrolyte
Kageshima, Yosuke; Shiga, Sota; Kumagai, Hiromu; Teshima, Katsuya; Domen, Kazunari; Nishikiori, Hiromasa;
BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN, 93(8), 942-948, Aug. 2020

Water retentivity of allophane-titania nanocomposite films
Nishikiori, Hiromasa; Watanabe, Mizuki; Nakase, Miku; Kikuchi, Ayaka; Yamakami, Tomohiko; Teshima, Katsuya;
APPLIED CATALYSIS B-ENVIRONMENTAL, 266, 118659, 05 Jun. 2020

Observation of Photoinduced Proton Transfer between the Titania Surface and Dye Molecule
Nishikiori, Hiromasa; Kondo, Hayato; Kageshima, Yosuke; Hooshmand, Nasrin; Panikkanvalappil, Sajanlal R.; Valverde-Chavez, David A.; Silva, Carlos; El-Sayed, Mostafa A.; Teshima, Katsuya;
JOURNAL OF PHYSICAL CHEMISTRY C, 124(7), 4172-4178, 20 Feb. 2020

Photoelectrochemical-voltaic cells consisting of particulate ZnxCd1-xSe photoanodes with photovoltages exceeding 1.23 V
Kageshima, Yosuke; Someno, Akihiko; Teshima, Katsuya; Domen, Kazunari; Nishikiori, Hiromasa;
SUSTAINABLE ENERGY & FUELS, 3(10), 2733-2741, 01 Oct. 2019

Electrochemical Evaluation for Multiple Functions of Pt-loaded TiO2 Nanoparticles Deposited on a Photocathode
Kageshima, Yosuke; Fujita, Takumi; Takagi, Fumiaki; Minegishi, Tsutomu; Teshima, Katsuya; Domen, Kazunari; Amao, Yutaka; Nishikiori, Hiromasa;
ChemElectroChem, 6(18), 4859-4866, 16 Sep. 2019

Performance of photofuel cells effectively using cellulose film
Nishikiori, Hiromasa; Takizawa, Yuki; Teshima, Katsuya;
Chemistry Letters, 48(5), 437-440, May 2019

Formation of CuO on TiO2 surface using its photocatalytic activity
Nishikiori, Hiromasa; Harata, Naoya; Yamaguchi, Saho; Ishikawa, Takashi; Kondo, Hayato; Kikuchi, Ayaka; Yamakami, Tomohiko; Teshima, Katsuya;
Catalysts, 9(4), Apr. 2019

In situ probing of photoinduced hydrophilicity on titania surface using dye molecules
Hiromasa Nishikiori, Kotaro Tagami, Shingo Matsunaga, Katsuya Teshima
ACS OMEGA, 4(3), 5944-5949, 28 Mar. 2019

Formation of silica nanolayer on titania surface by photocatalytic reaction
Hiromasa Nishikiori, Shingo Matsunaga, Moeko Iwasaki, Nobuyuki Zettsu, Mari Yamakawa, Ayaka Kikuchi, Tomohiko Yamakami, Katsuya Teshima
Appl. Catal. B, 241, 299-304, Feb. 2019

Phase transition and crystal growth of a titania layer on a titanium metal plate
Hiromasa Nishikiori, Taisuke Hizumi, Kazuki Kawamoto, Katsuya Teshima
Res. Chem. Intermed., 44(12), 7539-7555, Dec. 2018

Photon upconverted emission based on dye-sensitized triplet–triplet annihilation in silica sol–gel system
Hiromasa Nishikiori, Masahiro Takeshita, Yoshihiro Komatsu, Hiroshi Satozono, Katsuya Teshima
ACS OMEGA, 3(8), 8529-8536, 01 Aug. 2018

Influence of allophane distribution on photocatalytic activity of allophane-titania composite films
Hiromasa Nishikiori, Shingo Matsunaga, Naoyuki Furuichi, Hitoshi Takayama, Koji Morita, Katsuya Teshima, Hiromi Yamashita
Appl. Clay Sci., 146, 43-49, 15 Sep. 2017, Refereed

Reaction kinetics on allophane-titania nanocomposite electrodes for photofuel cells
Nishikiori, Hiromasa; Furuichi, Naoyuki; Teshima, Katsuya; Yamashita, Hiromi;
Chemistry Letters, 46(5), 659-661, May 2017

Crystal growth of titania by photocatalytic reaction
Nishikiori, Hiromasa; Fujiwara, Shunpei; Miyagawa, Syuhei; Zettsu, Nobuyuki; Teshima, Katsuya;
APPLIED CATALYSIS B-ENVIRONMENTAL, 217, 241-246, 2017

Exceptional flux growth and chemical transformation of metastable orthorhombic LiMnO2 cuboids into hierarchically-structured porous H1.6Mn1.6O4 rods as Li ion sieves
Hayashi, Fumitaka; Kurokawa, Shoichi; Shiiba, Hiromasa; Wagata, Hajime; Yubuta, Kunio; Oishi, Shuji; Nishikiori, Hiromasa; Teshima, Katsuya;
CRYSTAL GROWTH & DESIGN, 16(11), 6178-6185, Nov. 2016

Surface modification of titanium metal plate using alkali metal chlorides
H. Nishikiori, T. Akaozeki, T. Hizumi, N. Zettsu, and K. Teshima
Chem. Lett., 45(7), 729−731, 2016

Platy KTiNbO5 as a selective Sr ion adsorbent: Crystal growth, adsorption experiments, and DFT calculations
X. Xiao, F. Hayashi, H. Shiiba, S. Selcuk, K. Ishihara, K. Namiki, L. Shao, H. Nishikiori, A. Selloni, and K. Teshima
J. Phys. Chem. C, 120(22), 11984−11992, 2016

Influence of Cu distribution on photocatalytic activity of Cu-doped titania prepared using metal alkoxides
H. Nishikiori, T. Ikeda, Y. Izaki, R. Katayama, and Y. Shimizu
Res. Chem. Intermed., 42(5), 4813−4825, 2016

Flux-Boosted Coating of Idiomorphic CuInS2 Crystal Layers on Mo-Coated Glass Substrate
M. Kurihara, F. Hayashi, K. Shimizu, H. Wagata, T. Hirano, Y. Nakajima, H. Nishikiori, S. Oishi, K. Domen, and K. Teshima
CrystEngComm, 18(20), 3612−3616, 2016

Zinc complex formation of organic ligands on zinc oxide and titanium dioxide
H. Nishikiori, D. Natori, H. Ebara, and T. Fujii
J. Photochem. Photobiol. A, 327, 51−57, 2016

Crystal structure and photoelectric conversion properties of eosin Y-adsorbing ZnO films prepared by electroless deposition
S. Nagaya and H. Nishikiori, H. Mizusaki, K. Sato, H. Wagata, and K. Teshima
Appl. Catal. B-Environ., 189, 51−55, 2016

Potential levels of metal complexes of 8-hydroxyquinoline
Nishikiori, Hiromasa; Nakamura, Shogo; Natori, Daichi; Teshima, Katsuya;
Chemical Physics Letters, 662, 146-151, 2016

Photocatalytic degradation of chlorinated propenes using TiO2
Nishikiori, H; Sato, Y; Oki, K; Fujii, T
RESEARCH ON CHEMICAL INTERMEDIATES, 41(10), 7641-7654, Oct. 2015

Interaction between dye and zinc in the dye-dispersing ZnO films prepared by a wet process
Nishikiori, H; Takikawa, T; Ito, K; Nagaya, S; Wagata, H; Teshima, K; Fujii, T
RESEARCH ON CHEMICAL INTERMEDIATES, 41(9), 6559-6574, Sep. 2015

Photoinduced electron transfer in rhodamine B-containing amorphous titania gels
Nishikiori, Hiromasa; Teshima, Katsuya; Fujii, Tsuneo;
RESEARCH ON CHEMICAL INTERMEDIATES, 41(6), 3803-3816, Jun. 2015

Photoelectrochemical properties of dye-dispersing allophane-titania composite electrodes
Nishikiori, Hiromasa; Kanada, Naohiro; Setiawan, Rudi Agus; Morita, Koji; Teshima, Katsuya; Fujii, Tsuneo;
Applied Clay Science, 107, 138-144, Apr. 2015

Chloride flux growth of La2Ti2O7 crystals and subsequent nitridation to form LaTiO2N crystals
H. Wagata, N. Zettsu, A. Yamaguchi, H. Nishikiori, K. Yubuta, S. Oishi, K. Teshima
Cryst. Growth Des., 15(1), 124−128, 2015

Formation Process of Eosin Y-Adsorbing ZnO Particles by Electroless Deposition and Their Photoelectric Conversion Properties
Nagaya, Satoshi; Nishikiori, Hiromasa; Mizusaki, Hideaki; Wagata, Hajime; Teshima, Katsuya;
ACS Applied Materials & Interfaces, 7(21), 11592-11598, 2015

Degradation of Trichloroethylene Using Allophane-Titania Nanocomposite Supported on Porous Filter
Nishikiori, Hiromasa; Morita, Koji; Shibuya, Yuki; Tagashira, Kenji;
Chemistry Letters, 44(5), 639-641, 2015

Titanium complex formation of organic ligands in titania gels
Nishikiori, Hiromasa; Todoroki, Kenta; Setiawan, Rudi Agus; Teshima, Katsuya; Fujii, Tsuneo; Satozono, Hiroshi;
LANGMUIR, 31(3), 964-969, 2015

Formation of ZnO thin films by photocatalytic reaction
Nishikiori, H; Nagaya, S; Takikawa, T; Kikuchi, A; Yamakami, T; Wagata, H; Teshima, K; Fujii, T
APPLIED CATALYSIS B-ENVIRONMENTAL, 160, 651-657, Nov. 2014

Influence of Dye Content on the Conduction Band Edge of Titania in the Steam-treated Dye-dispersing Titania Electrodes
Setiawan, RA; Nishikiori, H; Tanaka, N; Fujii, T
Photochemistry and Photobiology, 90(5), 1004-1011, 05 Sep. 2014

Influences of Acid on Molecular Forms of Fluorescein and Photoinduced Electron Transfer in Fluorescein-Dispersing Sol-Gel Titania Films
Nishikiori, H; Setiawan, RA; Miyashita, K; Teshima, K; Fujii, T
Photochemistry and Photobiology, 90(4), 747-759, 02 Jul. 2014

Reaction in photofuel cells using allophane-titania nanocomposite electrodes
Nishikiori, H; Hashiguchi, S; Ito, M; Setiawan, RA; Fujii, T
APPLIED CATALYSIS B-ENVIRONMENTAL, 147, 246-250, Apr. 2014

Quantitative characterization of acidic groups on acid-treated multi-walled carbon nanotubes using 1-aminopyrene as a fluorescent probe
Nishikiori, H; Tanigaki, T; Endo, M; Fujii, T
Carbon, 66, 560-566, Jan. 2014

Photoinduced reactions of chloroacetone in solid Ar: Identification of CH2=COCICH3
N. Tanaka*, Y. Urashima, and H. Nishikiori
Chem. Phys. Lett., 614, 258−262, 2014

Photoinduced rotamerization and dissociation of o-fluorobenzoyl chloride in solid Ar
N. Tanaka, K. Nakamura, M. Yutaka, and H. Nishikiori
Chem. Phys. Lett., 613, 34−39, 2014

Computational study of the reaction between chloroacetone and OH radical
Tanaka, N; Yamagishi, S; Nishikiori, H
Computational and Theoretical Chemistry, 1020, 108-112, Sep. 2013

Density functional theory studies on the addition and abstraction reactions of OH radicals with terephthalate dianions
Tanaka, N; Itoh, S; Nishikiori, H
INTERNATIONAL JOURNAL OF QUANTUM CHEMISTRY, 113(4), 418-422, 15 Feb. 2013

Reaction of spironaphthoxazine with acid
Nishikiori, H; Shimamura, S; Fujii, T
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 252, 100-106, Jan. 2013

Electron transfer process in fluorescein-dispersing titania gel films observed by time-resolved fluorescence spectroscopy
R. A. Setiawan, H. Nishikiori, Y. Uesugi, K. Miyashita, M. A. El-Sayed, T. Fujii
J. Phys. Chem. C, 117(20), 10308-10314, 2013

Complex formation in 8-hydroxyquinoline-containing titania gel films
H. Nishikiori, K. Todoroki, D. Natori, R. A. Setiawan, K. Miyashita, T. Fujii
Chem. Lett., 42(5), 556-558, 2013

Visible light-photocatalytic activity of sulfate-doped titanium dioxide prepared by the sol−gel method
H. Nishikiori, M. Hayashibe, T. Fujii
Catalysts, 3(2), 363-377, 2013

Preparation of dye-adsorbing ZnO thin films by electroless deposition and their photoelectrochemical properties
S. Nagaya, H. Nishikiori
ACS Appl. Mater. Interfaces, 5(18), 8841-8844, 2013

Photoelectric conversion properties of compositionally graded dye−titania electrode
R. A. Setiawan, H. Nishikiori, N. Tanaka, T. Fujii
Chem. Lett., 42(11), 1391-1393, 2013

Fabrication of NIR-Vis upconversion YO1–xF1+2x:Ln (Ln = Yb, Er, Ho, and Tm) crystal layers by flux coating and investigation of growth manner
H. Wagata, T. Wakabayashi, S. Suzuki, M. Tanaka, H. Nishikiori, S. Oishi, and K. Teshima
Cryst. Growth Des., 13(3), 1187−1192, 2013

Influence of dye dispersion on photoelectric conversion properties of dye-containing titania electrodes
Nishikiori, H; Setiawan, RA; Miyashita, K; Teshima, K; Fujii, T
CATALYSIS SCIENCE&TECHNOLOGY, 3(6), 1512-1519, 2013

Dimerization of xanthene dyes in sol-gel titania films
Nishikiori, H; Setiawan, RA; Kawamoto, S; Takagi, S; Teshima, K; Fujii, T
CATALYSIS SCIENCE&TECHNOLOGY, 3(10), 2786-2792, 2013

Matrix isolation studies of 185 nm light-induced cage reactions of o-chlorobenzaldehyde
Tanaka, N; Fujiwara, H; Ogawa, H; Nishikiori, H
JOURNAL OF MOLECULAR STRUCTURE, 1025, 48-52, Oct. 2012

Photocatalytic activity of titania layer prepared by oxidizing titanium compounds on titanium plate surface
Nishikiori, H; Takei, M; Oki, K; Takano, S; Tanaka, N; Fujii, T
APPLIED CATALYSIS B-ENVIRONMENTAL, 127, 227-233, Oct. 2012

Deposition of ZnO particles by photocatalytic reaction
Nagaya, S; Nishikiori, H
Chem. Lett., 41(9), 993−995, 05 Sep. 2012

Photofuel cells using allophane−titania nanocomposites
Nishikiori、H; Ito, M; Setiawan, RA; Kikuchi, A; Yamakami, T; Fujii, T
Chem. Lett., 41(7), 725−727, 05 Jul. 2012

Microstructures and luminescent properties of Ce-doped transparent mica glass-ceramics
Taruta, Seiichi; Iwasaki, Yoshitomo; Nishikiori, Hiromasa; Yamakami, Tomohiko; Yamaguchi, Tomohiro; Kitajima, Kunio; Okada, Kiyoshi
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS, 177(7), 504-509, Apr. 2012

Photoelectric conversion properties of dye-sensitized solar cells using dye-dispersing titania
H. Nishikiori, Y. Uesugi, R. A. Setiawan, T. Fujii, W. Qian, M. A. El-Sayed
J. Phys. Chem. C, 116(7), 4848−4854, 2012

Photocatalytic reaction on photofuel cell titania electrode
H. Nishikiori, Y. Kato, T. Fujii
Res. Chem. Intermed., 38(1), 241-250, 2012

Preparation of Cu-doped TiO2 via refluxing of alkoxide solution and its photocatalytic properties
H. Nishikiori, T. Sato, S. Kubota, N. Tanaka, Y. Shimizu, T. Fujii
Res. Chem. Intermed., 38(2), 595-613, 2012

Influence of adding carbon nanotubes on photoelectric conversion properties of dye-doped titania gel
Nishikiori, H; Ohta, T; Uesugi, Y; Itai, H; Endo, M; Fujii, T
Res. Chem. Intermed., 38(8), 1857-1869, 2012

Photoinduced electron transport in dye-containing titania gel films
Nishikiori, H; Setiawan, RA; Miyamoto, K; Sukmono, G; Uesugi, Y; Teshima, K; Fujii, T
RSC Advances, 2(10), 4258-4267, 2012

Chelation ability of spironaphthoxazine with metal ions in silica gel
Nishikiori, H; Teshima, K; Fujii, T
PHOTOCHEMICAL&PHOTOBIOLOGICAL SCIENCES, 11(7), 1164-1173, 2012

Influence of steam treatment on dye-titania complex formation and photoelectric conversion property of dye-doped titania gel
H. Nishikiori, Y. Uesugi, S. Takami, R. A. Setiawan, T. Fujii, W. Qian, M. A. El-Sayed
J. Phys. Chem. C, 115(6), 2880−2887, 2011

Photocurrent generated from nanoelectrode consisting of dye, titania gel, and carbon nanotube
H. Nishikiori, T. Ohta, T. Yamakami, M. Endo, T. Fujii
Chem. Lett., 40(6), 640−641, 2011

Low-temperature flux growth and upconversion fluorescence of the idiomorphic hexagonal-system NaYF4 and NaYF4:Ln (Ln = Yb, Er, Tm) crystals
S. Suzuki, K. Teshima, T. Wakabayashi, H. Nishikiori, K. Yubuta, T. Shishido, and S. Oishi
Cryst. Growth Des., 11(11), 4825−4830, 2011

Energetics of the rotational isomers of thiophenecarboxaldehydes in the ground state
T. Itoh, N. Tanaka, H. Nishikiroi, and T. Fujii
Chem. Phys. Lett., 514(4-6), 247−250, 2011

Matrix-isolation infrared spectroscopy of 2,3-, 2,4-, 2,5- and 3,4-difluorobenzaldehydes
T. Itoh, N. Tanaka, Y. Tsukada, H. Nishikiroi, and T. Fujii
J. Mol. Struct., 1000(1−3), 35−38, 2011

Novel fabrication of NIR-vis upconversion NaYF4:Ln (Ln = Yb, Er, Tm) crystal layers by a flux coating method
S. Suzuki, K. Teshima, T. Wakabayashi, H. Nishikiori, T. Ishizaki, and S. Oishi
J. Mater. Chem., 21(36), 13847−13852, 2011

Fluorescence properties of aromatic amine adsorbed on metallic and semiconducting single-walled carbon nanotubes
S. Kubota, T. Maruyama, H. Nishikiori, F. Ito, N. Tanaka, M. Endo, T. Fujii
J. Photochem. Photobiol. A, 218(2−3), 226−230, 2011

Degradation of trichloroethylene using highly adsorptive allophane-TiO2 nanocomposite
H. Nishikiori, M. Furukawa, T. Fujii
Appl. Catal. B-Environ., 102(3-4), 470−474, 2011

Photochromic behavior of spironaphthoxazine in metal ion-containing solutions
H. Nishikiori, T. Takamura, S. Shimamura, T. Fujii
J. Photochem. Photobiol. A, 222(1), 236−240, 2011

Photofuel cells using glucose-doped titania
H. Nishikiori, K. Isomura, Y. Uesugi, T. Fujii
Appl. Catl. B-Environ., 106(1-2), 250−254, 2011

Nitrogen doping into titanium dioxide by the sol−gel method using nitric acid
H. Nishikiori, Y. Fukasawa, Y. Yokosuka, T. Fujii
Res. Chem. Intermed., 37(8), 869−881, 2011

Photocatalysis-induced selective decoration of semiconducting single walled carbon nanotubes: hole-doping effect
Kubota, Satoshi;Shimamoto, Daisuke; Park, Jin Sung; Nishikiori, Hiromasa; Tanaka, Nobuaki; Kim, Yoong Ahm; Fujii, Tsuneo; Endo, Morinobu; Dresselhaus, Milred S.
Chemical Communications, 46(37), 6977-6979, Oct. 2010

Enhanced Photocurrent in Nanocomposite of Dye-doped Titania Gel and Carbon Nanotubes (vol 37, pg 940, 2008)
Itai, Hiroyuki; Nishikiori, Hiromasa; Tanaka, Nobuaki; Endo, Morinobu; Fujii, Tsuneo
Chemistry Letters, 39(5), 530-530, May 2010

Preparation and luminescent properties of Eu-doped transparent mica glass-ceramics
Taruta, S; Matsuki, M; Nishikiori, H; Yamakami, T;Yamaguchi, T; Kitajima, K
Ceramics International, 36(4), 1303-1309, May 2010

Molecular forms and fluorescence processes of 9-aminoacridine in thin sol-gel films
Nishikiori, Hiromasa; Tanaka, Nobuaki; Minami, Yuki;Katsuki, Akio; Fujii, Tsuneo
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 212(1), 62-67, Apr. 2010

Removal of detergents and fats from waste water using allophane
Nishikiori, Hiromasa; Kobayashi, Kiyokazu; Kubota, Satoshi; Tanaka, Nobuaki; Fujii, Tsuneo
Applied Clay Science, 47(3-4), 325-329, Feb. 2010

Photocatalytic degradation of dichloroacetyl chloride adsorbed on TiO2
H. Nishikiori, M. Tagahara, L. Mukoyama, T. Fujii
Res. Chem. Intermed., 36(8), 947−957, 2010

Spectroscopic Evaluation of the Length of Poly(ethylene glycol) Covalently Attached to Multiwalled Carbon Nanotubes
Kubota, Satoshi; Maruyama, Takafumi; Nishikiori, Hiromasa; Tanaka, Nobuaki; Endo, Morinobu; Fujii, Tsuneo
Chemistry Letters, 38(9), 890-891, Sep. 2009

Photo-electric conversion in dye-doped nanocrystalline titania films
Nishikiori, Hiromasa; Uesugi, Yohei; Tanaka, Nobuaki; Fujii, Tsuneo
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 207(2-3), 204-208, Sep. 2009

Photochemical deposition of Ag nanoparticles on multiwalled carbon nanotubes
Tanaka, N; Nishikiori, H; Kubota, S; Endo, M; Fujii, T
Carbon, 47(11), 2752-2754, Sep. 2009

Growth and characterization of pyrene crystals on carbon nanofibers
Kubota, Satoshi; Nishikiori, Hiromasa; Tanaka, Nobuaki; Endo, Morinobu; Fujii, Tsuneo
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 206(2-3), 148-154, Aug. 2009

Photocatalytic degradation of trichloroethylene using N-doped TiO2 prepared by a simple sol–gel process
Y. Yokosuka, K. Oki, H. Nishikiori, Y. Tatsumi, N. Tanaka, T. Fujii
Res. Chem. Intermed., 35(1), 43−53, 2009

Proton donor–acceptor property of matrix during the sol–gel reaction
H. Nishikiori, N. Tanaka, Y. Isowaki, Y. Tanno, T. Nomoto, K. Toriumi, S. Mishima, T. Fujii
Res. Chem. Intermed., 35(2), 227−240, 2009

Adsorption of benzene derivatives on allophane
H. Nishikiori, J. Shindoh, N. Takahashi, T. Takagi, N. Tanaka, T. Fujii
Appl. Clay Sci., 43(2), 160-163, 2009

In situ probing of acidic groups on acid-treated carbon nanofibers using 1-aminopyrene
H. Nishikiori, N. Tanaka, T. Tanigaki, M. Endo, T. Fujii
J. Photochem. Photobiol. A, 193(2−3), 161−165, 2008

Enhanced photocurrent in nanocomposite of dye-doped titania gel and carbon nanotubes
H. Itai, H. Nishikiori, N. Tanaka, M. Endo, T. Fujii:
Chem. Lett., 37(9), 940−941, 2008

Laser-enhanced Dispersion of Multiwalled Carbon Nanotubes in Acetonitrile
N. Tanaka, H. Nishikiori, S. Kubota, A. Iinuma, M. Endo, and T. Fujii
Chem. Lett., 37(11), 1112−1113, 2008

Energy transfer and photodegradation of Perylene Red with DTTC and HITC acceptor dyes in PMMA
C. Clendinen, C. Clendinen, W.N. Sisk, H. Nishikiori, N. Tanaka, and T. Fujii
DYES AND PIGMENTS, 77(1), 92−97, 2008

Chelation of spironaphthoxazine with zinc ions and its photochromic behavior during the sol-gel-xerogel transitions of alkyl silicon alkoxide
Hiromasa Nishikiori, Nobuaki Tanaka, Katsuhiko Takagi, Tsuneo Fujii
J. Photochem. Photobiol. A, 189(1), 46-54, 2007

Change in titania structure from amorphousness to crystalline increasing photoinduced electron-transfer rate in dye-titania system
Hiromasa Nishikiori, Wei Qian, Mostafa A. El-Sayed, Nobuaki Tanaka, Tsuneo Fujii
J. Phys. Chem. C, 111(26), 9008-9011, 2007

Fluorescence observation of pyrene adsorbed on carbon nanofibers
T. Tanigaki, H. Nishikiori, S. Kubota, N. Tanaka, M. Endo, T. Fujii
Chem. Phys. Lett., 448, 448(4−6), 218−222, 2007

Effect of steam treatment on photocurrent and dye−titania interaction in dye-doped titania gel
T. Kitsui, H. Nishikiori, N. Tanaka, T. Fujii:
J. Photochem. Photobiol. A, 192(2−3), 220−225, 2007

Photocurrent observed in dye-doped titania gel
Nishikiori, H; Tanaka, N; Kitsui, T; Fujii, T
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 179(1-2), 125-129, 2006

Possibility of conformation control of Micheler's ketone encapsulated into sol-gel matrices
Fujita, Y; Higuchi, K; Nishikiori, H; Tanaka, N; Fujii, T
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 179(1-2), 156-160, 2006

Chelation of spironaphthoxazine with zinc ionsduring the sol-gel-xerogel transitions in silicon alkoxide systems
Hiromasa Nishikiori, Nobuaki Tanaka, Katsuhiko Takagi, Tsuneo Fujii
J. Photochem. Photobiol. A, 183(1-2), 53-58, 2006

Zinc chelation and photofluorochromic behavior of spironaphthoxazine intercalated into hydrophobically modified montmorillonite
Nishikiori, H; Sasai, R; Takagi, K; Fujii, T
LANGMUIR, 22(7), 3376-3380, 2006

Matrix isolation and theoretical study on the photolysis of trichloroacetyl chloride
Tamezane, T. Tanaka, N. Nishikiori, H. Fujii, T
Chemical Physics Letters, 423(4-6), 434-438, 2006

Relationships between fluorescence properties of benzoquinolines and physicochemical changes in the sol-gel-xerogel transitions of silicon alkoxide systems
Mabuchi, T; Nishikiori, H; Tanaka, N; Fujii, T
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY, 33(3), 333-340, 2005

Quantitative characterization of surface adsorption sites of carbon nanofibers by in-situ fluorescence measurement using 1-naphthol
Satoshi Kubota, Hiromasa Nishikiori, Nobuaki Tanaka, Morinobu Endo, Tsuneo Fujii
Chem. Phys.Lett., 412(1-3), 223-227, 2005

Dispersion of acid-treated carbon nanofibers into gel matrices prepared by the sol-gel method
Satoshi Kubota, Hiromasa Nishikiori, Nobuaki Tanaka, Morinobu Endo, Tsuneo Fujii
J. Phys. Chem. B, 109(49), 23170-23174, 2005

In situ characterization of surface physicochemical properties of carbon nanofibers using 1-naphthol as a fluorescent probe
Hiromasa Nishikiori, Nobuaki Tanaka, Satoshi Kubota, Morinobu Endo, Tsuneo Fujii
Chem. Phys. Lett., 390(4-6), 389-393, 2004

Ab initio study on the (O-2-HCl)(+) complex
Tanaka, N. Nishikiori, H. Fujii, T. Sisk, WN.
Chemical Physics Letters, 397(1-3), 62-66, 2004

Theoretical studies on carbonyl halide-water complexes
N. Tanaka, T. Tamezane, H. Nishikiori, T. Fujii, W.N. Sisk
CHEMICAL PHYSICS, 306(1-3), 25-34, 2004

Ab initio and density functional studies on cyclopropanone complexes with HF and HCl
N. Tanaka, Y. Urashima, H. Nishikiori, and T. Fujii
Internet Electron. J. Mol. Des., 2(11), 723-731, 2003

An ab initio study on the phosgene-water complex
Tanaka, N; Tamezane, T; Nishikiori, H; Fujii, T
JOURNAL OF MOLECULAR STRUCTURE-THEOCHEM, 631, 21-28, 2003

Photocatalytic degradation of chlorinated ethenes
Oki, K; Tsuchida, S; Nishikiori, H; Tanaka, N; Fujii, T
INTERNATIONAL JOURNAL OF PHOTOENERGY, 5(1), 11-15, 2003

Coal fly ash decomposes diethyl phthalate
Hiromasa Nishikiori, Nobuaki Tanaka, Junichi Shindoh, Kiyoharu Sakurai, Hitoshi Fujimatsu, Eiji Suzuki Teruko Tsuchida, Michiharu Mitani, Tsuneo Fujii
Res. Chem. Intermed., 29(4), 441-448, 2003

Solvent effect on fluorescence spectra of a spirooxazine
Hiromasa Nishikiori, Nobuaki Tanaka, Katsuhiko Takagi, Tsuneo Fujii
Res. Chem. Intermed., 29(5), 485-493, 2003

Degradation and isomerization of 1,2-dichloroethenes by photocatalytic reactions
Oki, K; Yamada, S; Tsuchida, S; Nishikiori, H; Tanaka, N; Fujii, T
RESEARCH ON CHEMICAL INTERMEDIATES, 29(7-9), 827-837, 2003

Monomer-dimer equilibrium of rhodamine B encapsulated in Si-Al and Si-Ti binary-oxide thin films
Hiromasa Nishikiori, Nobuaki Tanaka, Tsuneo Fujii
J. Sol-Gel Sci. Technol., 20(1), 95-104, 2001

Intercalation of spirooxazine induced by zinc cation chelation in montmorillonite and its photochromic behavior
Hiromasa Nishikiori, Ryo Sasai, Norio Arai, Katsuhiko Takagi
Chem. Lett., (10), 1142-1143, 2000

Influence of water on molecular forms of rhodamine B in dip-coated thin films
Nishikiori, H; Tanaka, N; Fujii, T
RESEARCH ON CHEMICAL INTERMEDIATES, 26(5), 469-482, 2000

Acid-base and monomer-dimer equilibria of methylene blue in dip-coated thin films
Nishikiori, H; Nagaya, S; Tanaka, N; Katsuki, A; Fujii, T
BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN, 72(5), 915-921, 1999

Absorption and fluorescencespectra of 9-anthrol and its chemical species in solution
Fujii, T; Mishima, S; Tanaka, N; Kawauchi, O; Kodaira, K; Nishikiori, H; Kawai, Y
RESEARCH ON CHEMICAL INTERMEDIATES, 23(9), 829-839, 1997

Molecular forms of rhodamine B in dip-coated thin films
Nishikiori, H; Fujii, T
JOURNAL OF PHYSICAL CHEMISTRY B, 101(19), 3680-3687, 1997

ABSORPTION-SPECTRA OF RHODAMINE-B DIMERS IN DIP-COATED THIN-FILMS PREPARED BY THE SOL-GEL METHOD
FUJII, T; NISHIKIORI, H; TAMURA, T
Chemical Physics Letters, 233(4), 424-429, 1995

Advances in Photocatalysis, Electrocatalysis and Photoelectrocatalysis for Hydrogen Production
Yosuke Kageshima, Kazunari Domen, Hiromasa Nishikiori, Chapter 3: Metal Oxide-based Catalysts
RSC, 57–82 20 Dec. 2024

Handbook of Sol-Gel Science and Technology
K. Matsui, H. Nishikiori, T. Fujii (Entrapment of Organic Molecules), Joint work
Springer International Publishing, 2933-2971 Jul. 2018
ISBN:978-3-319-32099-1

Nanofibers
H. Nishikiori, S. Kubota, N. Tanaka, M. Endo, T. Fujii（分担執筆，第8章）, Joint work
InTech, 159-178 2010

Improvement of gas-barrier properties of layered compounds by photocatalytic silica deposition between the interlayer
2018

Observation and control of hydrophilicity and charge on photocatalyst film surface
2017

Generation of electricity and hydrogen evolution from cellulose
2016

Photon upconverted emission based on dye-sensitized triplet-triplet annihilation between smectite interlayers
2015

Surface modification of photocatalyst particles by photocatalytic reaction
2015

Photofuel cells using metal oxide photocatalysts
2010

Degradation of harmful materials using photocatalysts and clay minerals
2000