Polyelectrolyte Functionalized Carbon Nanotubes as Efficient Metal-free Electrocatalysts for Oxygen Reduction

被引：654

作者：

Wang, Shuangyin ^{[1
]}

Yu, Dingshan ^{[1
]}

Dai, Liming ^{[1
]}

机构：

[1] Case Western Reserve Univ, Dept Chem Engn, Dept Macromol Sci & Engn, Case Sch Engn, Cleveland, OH 44106 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2011年 / 133卷 / 14期

基金：

美国国家科学基金会;

关键词：

CATALYSTS; ARRAYS;

D O I：

10.1021/ja1112904

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Having a strong electron-withdrawing ability, poly(diallyldimethylammonium chloride) (PDDA) was used to create net positive charge for carbon atoms in the nanotube carbon plane via intermolecular charge transfer. The resultant PDDA functionalized/adsorbed carbon nanotubes (CNTs), either in an aligned or nonaligned form, were demonstrated to act as metal-free catalysts for oxygen reduction reaction (ORR) in fuel cells with similar performance as Pt catalysts. The adsorption-induced intermolecular charge-transfer should provide a general approach to various carbon-based efficient metal-free ORR catalysts for oxygen reduction in fuel cells, and even new catalytic materials for applications beyond fuel cells.

引用

页码：5182 / 5185

页数：4

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