Improved photoelectrochemical performance of Ti-doped α-Fe2O3 thin films by surface modification with fluoride

被引：151

作者：

Hu, Yong-Sheng ^{[1
]}

Kleiman-Shwarsctein, Alan ^{[2
]}

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：

CHEMICAL COMMUNICATIONS | 2009年 / 19期

基金：

美国国家科学基金会;

关键词：

HYDROGEN-PRODUCTION; VISIBLE-LIGHT; SEMICONDUCTOR ELECTRODES; OXIDE FILMS; WATER; PHOTOCATALYST; HEMATITE; DISSOCIATION; OXIDATION;

D O I：

10.1039/b901135h

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

CoF3 aqueous solution was used to modify the surface of Ti-doped iron oxide thin film photoanodes to negatively shift the flat-band potential and allow photogenerated electrons to directly reduce water to hydrogen without an external bias; the zero bias performance was further improved by the use of glucose (a biomass analog) to bypass the relatively slow oxygen evolution reaction to provide a source of electrons to rapidly consume photogenerated holes.

引用

页码：2652 / 2654

页数：3

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