Surface modification of hematite photoanode films with rhodium

被引：0
|
作者：
Minglong Zhang
Wenjun Luo
Zhaosheng Li
Tao Yu
Zhigang Zou
机构：
[1] Nanjing University,Ecomaterials and Renewable Energy Research Center, National Laboratory of Solid Microstructures
[2] Nanjing University,Department of Materials Science and Engineering
[3] Xuzhou Airforce College,Department of Airfield
来源：
Rare Metals | 2011年 / 30卷
关键词：
hematite; photoelectrochemistry; solar energy storage; hydrogen;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The Si and Ti codoped hematite (α-Fe2O3) photoanode film was dripped by Na3RhCl6·12H2O alkaline solution to negatively shift the onset potential of α-Fe2O3 photoanode by ∼ 200 mV. The photocurrent densities of as-treated and untreated α-Fe2O3 are 0.6, and 0.08 mA/cm2, respectively at 0 V vs. Ag/AgCl in the electrolyte of 1 M NaOH aqueous solution under 500 W xenon illumination. The IPCE (incident photon to current efficiency) of the as-treated α-Fe2O3 is 5.2% at 365 nm, 0 V vs. Ag/AgCl. A plausible explanation is proposed for the enhanced α-Fe2O3 photoelectrochemical responses. The result shows that rhodium could be ranked as an efficient oxygen evolution catalyst.
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页码：38 / 41
页数：3
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