NiFe-oxide electrocatalysts for the oxygen evolution reaction on Ti doped hematite photoelectrodes

被引：68

作者：

Kleiman-Shwarsctein, Alan ^{[2
]}

Hu, Yong-Sheng ^{[1
]}

Stucky, Galen D. ^{[2
,3
]}

McFarland, Eric W. ^{[1
]}

机构：

[1] Univ Calif Santa Barbara, Dept Chem Engn, Santa Barbara, CA 93106 USA

[2] Univ Calif Santa Barbara, Dept Mat, Santa Barbara, CA 93106 USA

[3] Univ Calif Santa Barbara, Dept Chem & Biochem, Santa Barbara, CA 93106 USA

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2009年 / 11卷 / 06期

基金：

美国国家科学基金会;

关键词：

NiFe; Electrocatalyst; Iron oxide; Hematite; Photoelectrochemical hydrogen production; Oxygen evolution catalysis; NICKEL-OXIDE; THIN-FILMS; IRON; ELECTRODES; HYDROXIDE; BEHAVIOR; XPS;

D O I：

10.1016/j.elecom.2009.03.034

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Nickel iron binary oxide electrocatalysts prepared from different precursors were evaluated to facilitate the oxygen evolution reaction (OER) on semiconducting metal-oxide photoelectrodes. The electrocatalysts deposited from Ni(II) and Ni(II)Fe(II) precursors had the highest activity for OER, however, their presence on the surface of the Ti doped hematite photoelectrode decreased the incident photon-to-current efficiency (IPCE) of the photoelectrode for water splitting in an alkaline electrolyte. In contrast, the NiFe-oxide deposited from the Ni(II)-Fe(III) precursor which had a lower OER activity was found to increase the IPCE of the photoelectrode by as much as a factor of 5. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：1150 / 1153

页数：4

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