Carbon nanotubes as catalysts for direct carbohydrazide fuel cells

被引：18

作者：

Qi, Ji ^{[1
]}

Benipal, Neeva ^{[1
]}

Chadderdon, David J. ^{[1
]}

Huo, Jiajie ^{[1
]}

Jiang, Yibo ^{[2
]}

Qiu, Yang ^{[1
]}

Han, Xiaotong ^{[1
]}

Hu, Yun Hang ^{[3
]}

Shanks, Brent H. ^{[1
]}

Li, Wenzhen ^{[1
,4
]}

机构：

[1] Iowa State Univ, Dept Chem & Biol Engn, Biorenewables Res Lab, Ames, IA 50011 USA

[2] Michigan Technol Univ, Dept Civil & Environm Engn, Houghton, MI 49931 USA

[3] Michigan Technol Univ, Dept Mat Sci & Engn, Houghton, MI 49931 USA

[4] US DOE, Ames Lab, Ames, IA 50011 USA

来源：

CARBON | 2015年 / 89卷

基金：

美国国家科学基金会;

关键词：

PERFORMANCE; ELECTRODES; OXIDATION; GLYCEROL;

D O I：

10.1016/j.carbon.2015.03.029

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

As an alternative to potentially carcinogenic hydrazine for fuel cell application, carbohydrazide, which contains lone electron pairs on nitrogen atoms and readily activated N-H bonds, can be catalytically oxidized over metal-free carbon catalysts due to the high equilibrium electromotive force (1.65 V) of its oxidation reaction. Carbon nanotubes are found to electrochemically catalyze the carbohydrazide oxidation reaction more efficiently than carbon black and multi-layer graphene in alkaline media. With carbon nanotubes as the anode catalyst, anode metal-catalyst-free and completely metal-catalyst-free direct carbohydrazide anion exchange membrane fuel cells are shown here to generate a peak power density of 77.5 mW cm(-2) and 26.5 mW cm(-2), respectively. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：142 / 147

页数：6

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