Electrooxidation of ascorbic acid on polyaniline and its implications to fuel cells

被引：49

作者：

Mondal, SK

Raman, RK

Shukla, AK

Munichandraiah, N ^{[1
]}

机构：

[1] Indian Inst Sci, Dept Inorgan & Phys Chem, Bangalore 560012, Karnataka, India

[2] Indian Inst Sci, Solid State & Struct Chem Unit, Bangalore 560012, Karnataka, India

来源：

JOURNAL OF POWER SOURCES | 2005年 / 145卷 / 01期

关键词：

ascorbic acids; polyanifine; electrooxidation; fuel cell;

D O I：

10.1016/j.jpowsour.2005.01.001

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：

L-Ascorbic acid (AA) has been shown to undergo oxidation on polyaniline (PANI) without a platinum in-group catalyst. A direct ascorbic acid fuel cell (DAAFC) has been assembled by employing an anode coated with PANI catalyst. From the experimental studies using cyclic voltammetry, amperometry and IR spectroscopy, it has been concluded that PANI facilitates the oxidation of AA. It has been possible to achieve a maximum power density of 4.3 mW cm(-2) at a load current density of 15 mA cm(-2) at 70 C. As both AA and PANI are inexpensive and environmental-friendly, the present findings are expected to be useful for the development of cost-effective DAAFCs for several low power applications. (c) 2005 Elsevier B.V All rights reserved.

引用

页码：16 / 20

页数：5

共 26 条

[1] Investigation of direct methanol fuel cells based on unsupported Pt-Ru anode catalysts with different chemical properties [J].