Literature DB >> 19715313

ATR-SEIRAS investigation of the Fermi level of Pt cocatalyst on a GaN photocatalyst for hydrogen evolution under irradiation.

Masaaki Yoshida1, Akira Yamakata, Kazuhiro Takanabe, Jun Kubota, Masatoshi Osawa, Kazunari Domen.   

Abstract

The interaction of photogenerated carries in GaN photocatalyst with Pt cocatalyst for hydrogen evolution under irradiation was investigated from in situ ATR-SEIRAS measurement by following the CO vibrational frequency. After irradiation, the CO frequency shifted higher, indicating that the Fermi level of Pt particles was positively shifted by the photogenerated holes. Thereafter, a lower frequency peak appeared, indicating that the Fermi level of some Pt particles was negatively shifted to the hydrogen evolution potential by photogenerated electrons, which is the essential function of cocatalysis for hydrogen evolution.

Entities:  

Year:  2009        PMID： 19715313     DOI： 10.1021/ja904991p

Source DB:  PubMed          Journal:  J Am Chem Soc        ISSN： 0002-7863            Impact factor:   15.419


  6 in total

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Journal:  Chem Sci       Date:  2022-02-08       Impact factor: 9.825

2.  Photoelectrochemical and crystalline properties of a GaN photoelectrode loaded with α-Fe2O3 as cocatalyst.

Authors:  Martin Velazquez-Rizo; Daisuke Iida; Kazuhiro Ohkawa
Journal:  Sci Rep       Date:  2020-07-28       Impact factor: 4.379

Review 3.  Driving Surface Redox Reactions in Heterogeneous Photocatalysis: The Active State of Illuminated Semiconductor-Supported Nanoparticles during Overall Water-Splitting.

Authors:  Bastian Mei; Kai Han; Guido Mul
Journal:  ACS Catal       Date:  2018-08-20       Impact factor: 13.084

4.  Manipulation of charge carrier flow in Bi4NbO8Cl nanoplate photocatalyst with metal loading.

Authors:  Kanta Ogawa; Ryota Sakamoto; Chengchao Zhong; Hajime Suzuki; Kosaku Kato; Osamu Tomita; Kouichi Nakashima; Akira Yamakata; Takashi Tachikawa; Akinori Saeki; Hiroshi Kageyama; Ryu Abe
Journal:  Chem Sci       Date:  2022-01-24       Impact factor: 9.825

5.  Self-activated Rh-Zr mixed oxide as a nonhazardous cocatalyst for photocatalytic hydrogen evolution.

Authors:  Toshio Nishino; Masaki Saruyama; Zhanzhao Li; Yoshie Nagatsuma; Mamiko Nakabayashi; Naoya Shibata; Taro Yamada; Ryo Takahata; Seiji Yamazoe; Takashi Hisatomi; Kazunari Domen; Toshiharu Teranishi
Journal:  Chem Sci       Date:  2020-06-19       Impact factor: 9.825

Review 6.  Determination and perturbation of the electronic potentials of solid catalysts for innovative catalysis.

Authors:  Xingyu Qi; Tatsuya Shinagawa; Fuminao Kishimoto; Kazuhiro Takanabe
Journal:  Chem Sci       Date:  2020-12-08       Impact factor: 9.825
  6 in total

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