Carbon-Supported Au Hollow Nanospheres as Anode Catalysts for Direct Borohydride-Hydrogen Peroxide Fuel Cells

被引：45

作者：

Wei, Jianliang ^{[1
]}

Wang, Xianyou ^{[1
]}

Wang, Ying ^{[2
]}

Guo, Jia ^{[2
]}

He, Peiying ^{[1
]}

Yang, Shunyi ^{[1
]}

Li, Na ^{[1
]}

Pei, Fu ^{[1
]}

Wang, Yansheng ^{[1
]}

机构：

[1] Xiangtan Univ, Minist Educ, Sch Chem, Key Lab Environm Friendly Chem & Applicat, Xiangtan 411105, Peoples R China

[2] Wuhan Inst Technol, Sch Chem Engn & Pharm, Wuhan 430073, Peoples R China

来源：

ENERGY & FUELS | 2009年 / 23卷 / 08期

基金：

中国国家自然科学基金;

关键词：

GOLD; ELECTROOXIDATION; PERFORMANCE; OXIDATION; CATHODE; ALLOY; ELECTROCATALYST; ELECTRODES; PLATINUM;

D O I：

10.1021/ef900186m

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The carbon-supported Au hollow nanosphere (HNAu/C) composite electrocatalyst was prepared by sacrificial templates at room temperature. The catalytic activity of HNAu/C and carbon-supported Au solid nanoparticles (SNAu/C) for BH4- were compared. Cyclic voltammogram (CV) results showed that the HNAu/C catalysts exhibit a higher catalytic activity for BH4- electro-oxidation. A simple direct borohydricle-hydrogen peroxide fuel cell using HNAu/C as anode catalysts and SNAu/C as cathode catalysts was fabricated. The effect of sodium hydroxide and borohydride concentrations for the cell performance was studied. It was found that Optimum anolyte consists of 1 M borohydride and 3 M sodium hydroxide. The maximum power density achieved was 25.8 mW cm(-2) at a current density of 50 mA cm(-2).

引用

页码：4037 / 4041

页数：5

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