Nickel Hydroxide Decorated Hydrogenated Zinc Oxide Nanorod Arrays with Enhanced Photoelectrochemical Performance

被引：32
作者：
Feng, Kejun [1 ]
Li, Wei [2 ]
Xie, Shilei [2 ]
Lu, Xihong [2 ]
机构：
[1] Huizhou Univ, Dept Chem Engn, Huizhou 516007, Guangdong, Peoples R China
[2] Sun Yat Sen Univ, Key Lab Bioinorgan & Synthet Chem, KLGHEI Environm & Energy Chem, Sch Chem & Chem Engn,MOE, Guangzhou 510275, Guangdong, Peoples R China
来源：
ELECTROCHIMICA ACTA | 2014年 / 137卷
基金：
高等学校博士学科点专项科研基金;
关键词：
Zinc Oxide; Nickel hydroxide; Nanorods; Photoelectrochemcial; NANOWIRE ARRAYS; ZNO; CARBON; FILMS;
D O I：
10.1016/j.electacta.2014.05.152
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Photoelectrochemical water splitting over transition metal oxide photoanodes has attracted increasing attention as environmentally friendly and cost-effective method to produce hydrogen. In this work, we demonstrate that hydrogenation and nickel hydroxide coating can significantly improve the photoelectrochemical properties of ZnO nanorod photoanode. The nickel hydroxide decorated hydrogenated ZnO (Ni(OH)(2)/H-ZnO) nanorods exhibit substantially higher photoelectrochemical performance than the pristine ZnO and H-ZnO nanorods, which achieve a remarkable photocurrent density of similar to 910 mu A cm(-2) at 0.4V (vs. Ag/AgCl) under white light irradiation. Moreover, the Ni(OH)(2)/H-ZnO nanorods has a good stability without any photocurrent decay after 3 h irradiation. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：108 / 113
页数：6
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