Isotopic and kinetic assessment of photocatalytic water splitting on Zn-added Ga2O3 photocatalyst loaded with Rh2-yCryO3 cocatalyst

Takashi Hisatomi; Kazuo Miyazaki; Kazuhiro Takanabe; Kazuhiko Maeda; Jun Kubota; Yoshihisa Sakata; Kazunari Domen

doi:10.1016/j.cplett.2010.01.006

Isotopic and kinetic assessment of photocatalytic water splitting on Zn-added Ga₂O₃ photocatalyst loaded with Rh_2-yCr_yO₃ cocatalyst

Takashi Hisatomi, Kazuo Miyazaki, Kazuhiro Takanabe, Kazuhiko Maeda, Jun Kubota, Yoshihisa Sakata, Kazunari Domen^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

51 Scopus citations

Abstract

Photocatalytic overall water splitting using Zn-added Ga₂O₃ modified with Rh_2-yCr_yO₃ showed a weaker hydrogen-deuterium isotope effect and a lower apparent activation energy than previously reported electrochemical H₂ evolution reactions. The photocatalytic reaction rates were dominated by bulk processes, rather than surface redox reactions. The isotope effect varied with the amounts of photocatalyst and cocatalyst, and with light intensity, due to varying contributions from surface reactions.

Original language	English (US)
Pages (from-to)	144-146
Number of pages	3
Journal	Chemical Physics Letters
Volume	486
Issue number	4-6
DOIs	https://doi.org/10.1016/j.cplett.2010.01.006
State	Published - Feb 12 2010
Externally published	Yes

ASJC Scopus subject areas

General Physics and Astronomy
Physical and Theoretical Chemistry

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.cplett.2010.01.006

Cite this

@article{5fadc2a9be6c41b6886dc032ecf91607,

title = "Isotopic and kinetic assessment of photocatalytic water splitting on Zn-added Ga2O3 photocatalyst loaded with Rh2-yCryO3 cocatalyst",

abstract = "Photocatalytic overall water splitting using Zn-added Ga2O3 modified with Rh2-yCryO3 showed a weaker hydrogen-deuterium isotope effect and a lower apparent activation energy than previously reported electrochemical H2 evolution reactions. The photocatalytic reaction rates were dominated by bulk processes, rather than surface redox reactions. The isotope effect varied with the amounts of photocatalyst and cocatalyst, and with light intensity, due to varying contributions from surface reactions.",

author = "Takashi Hisatomi and Kazuo Miyazaki and Kazuhiro Takanabe and Kazuhiko Maeda and Jun Kubota and Yoshihisa Sakata and Kazunari Domen",

year = "2010",

month = feb,

day = "12",

doi = "10.1016/j.cplett.2010.01.006",

language = "English (US)",

volume = "486",

pages = "144--146",

journal = "Chemical Physics Letters",

issn = "0009-2614",

publisher = "Elsevier",

number = "4-6",

}

TY - JOUR

T1 - Isotopic and kinetic assessment of photocatalytic water splitting on Zn-added Ga2O3 photocatalyst loaded with Rh2-yCryO3 cocatalyst

AU - Hisatomi, Takashi

AU - Miyazaki, Kazuo

AU - Takanabe, Kazuhiro

AU - Maeda, Kazuhiko

AU - Kubota, Jun

AU - Sakata, Yoshihisa

AU - Domen, Kazunari

PY - 2010/2/12

Y1 - 2010/2/12

N2 - Photocatalytic overall water splitting using Zn-added Ga2O3 modified with Rh2-yCryO3 showed a weaker hydrogen-deuterium isotope effect and a lower apparent activation energy than previously reported electrochemical H2 evolution reactions. The photocatalytic reaction rates were dominated by bulk processes, rather than surface redox reactions. The isotope effect varied with the amounts of photocatalyst and cocatalyst, and with light intensity, due to varying contributions from surface reactions.

AB - Photocatalytic overall water splitting using Zn-added Ga2O3 modified with Rh2-yCryO3 showed a weaker hydrogen-deuterium isotope effect and a lower apparent activation energy than previously reported electrochemical H2 evolution reactions. The photocatalytic reaction rates were dominated by bulk processes, rather than surface redox reactions. The isotope effect varied with the amounts of photocatalyst and cocatalyst, and with light intensity, due to varying contributions from surface reactions.

UR - http://www.scopus.com/inward/record.url?scp=75349092320&partnerID=8YFLogxK

U2 - 10.1016/j.cplett.2010.01.006

DO - 10.1016/j.cplett.2010.01.006

M3 - Article

AN - SCOPUS:75349092320

SN - 0009-2614

VL - 486

SP - 144

EP - 146

JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 4-6

ER -