Photoelectrochemical properties of SrNbO2N photoanodes for water oxidation fabricated by the particle transfer method

被引：45

作者：

Urabe, Haruki ^{[1
]}

Hisatomi, Takashi ^{[1
]}

Minegishi, Tsutomu ^{[1
]}

Kubota, Jun ^{[1
]}

Domen, Kazunari ^{[1
]}

机构：

[1] Univ Tokyo, Dept Chem Syst Engn, Sch Engn, Bunkyo Ku, Tokyo 1138656, Japan

来源：

FARADAY DISCUSSIONS | 2014年 / 176卷

基金：

日本学术振兴会;

关键词：

VISIBLE-LIGHT; OXYGEN EVOLUTION; HYDROGEN-PRODUCTION; EFFICIENT; PHOTOCATALYSTS; CONVERSION; LATIO2N; DRIVEN; OXIDE;

D O I：

10.1039/c4fd00122b

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

SrNbO2N photoanodes, which have a band gap energy of 1.8 eV, were tested for photoelectrochemical water oxidation in water splitting. The photoanodes were fabricated either by a particle transfer method or an electrophoretic deposition method. The effects of the precursors, fabrication method, and CoOx catalyst loading were studied in order to identify the shortcomings of the photoanodes and improve their photoelectrochemical properties for water oxidation. SrNbO2N photoanodes fabricated by particle transfer generated a photocurrent that was one order of magnitude higher than that of photoanodes prepared via electrophoretic deposition. The stoichiometric oxide precursor (Sr2Nb2O7) was found to be preferable to the Sr-rich oxide precursor (Sr5Nb4O15). CoOx increased the photoanodic current on SrNbO2N photoelectrodes. Nevertheless, the incident photon-to-current efficiency was still limited to 10% at most. Potential problems with SrNbO2N photoanodes were discussed.

引用

页码：213 / 223

页数：11

共 26 条

[1] Efficient solar water splitting by enhanced charge separation in a bismuth vanadate-silicon tandem photoelectrode [J].

Abdi, Fatwa F. ;

Han, Lihao ;

Smets, Arno H. M. ;

Zeman, Miro ;

Dam, Bernard ;

van de Krol, Roel .

NATURE COMMUNICATIONS, 2013, 4

[2] Probing the photoelectrochemical properties of hematite (α-Fe2O3) electrodes using hydrogen peroxide as a hole scavenger [J].

Dotan, Hen ;

Sivula, Kevin ;

Graetzel, Michael ;

Rothschild, Avner ;

Warren, Scott C. .

ENERGY & ENVIRONMENTAL SCIENCE, 2011, 4 (03) :958-964

[3] Fabrication of an Efficient BaTaO2N Photoanode Harvesting a Wide Range of Visible Light for Water Splitting [J].

Higashi, Masanobu ;

Domen, Kazunari ;

Abe, Ryu .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2013, 135 (28) :10238-10241

[4] Highly Stable Water Splitting on Oxynitride TaON Photoanode System under Visible Light Irradiation [J].

Higashi, Masanobu ;

Domen, Kazunari ;

Abe, Ryu .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2012, 134 (16) :6968-6971

[5] Fabrication of efficient TaON and Ta3N5 photoanodes for water splitting under visible light irradiation [J].

Higashi, Masanobu ;

Domen, Kazunari ;

Abe, Ryu .

ENERGY & ENVIRONMENTAL SCIENCE, 2011, 4 (10) :4138-4147

[6] Recent advances in semiconductors for photocatalytic and photoelectrochemical water splitting [J].

Hisatomi, Takashi ;

Kubota, Jun ;

Domen, Kazunari .

CHEMICAL SOCIETY REVIEWS, 2014, 43 (22) :7520-7535

[7] Photocatalytic oxygen evolution using BaNbO2N modified with cobalt oxide under photoexcitation up to 740 nm [J].

Hisatomi, Takashi ;

Katayama, Chisato ;

Moriya, Yosuke ;

Minegishi, Tsutomu ;

Katayama, Masao ;

Nishiyama, Hiroshi ;

Yamada, Taro ;

Domen, Kazunari .

ENERGY & ENVIRONMENTAL SCIENCE, 2013, 6 (12) :3595-3599

[8] Toward cost-effective solar energy use [J].

Lewis, Nathan S. .

SCIENCE, 2007, 315 (5813) :798-801

[9] Powering the planet: Chemical challenges in solar energy utilization [J].

Lewis, Nathan S. ;

Nocera, Daniel G. .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2006, 103 (43) :15729-15735

[10] A Co-catalyst-Loaded Ta3N5 Photoanode with a High Solar Photocurrent for Water Splitting upon Facile Removal of the Surface Layer [J].

Li, Mingxue ;

Luo, Wenjun ;

Cao, Dapeng ;

Zhao, Xin ;

Li, Zhaosheng ;

Yu, Tao ;

Zou, Zhigang .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2013, 52 (42) :11016-11020

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