A high-performance ethanol-hydrogen peroxide fuel cell

被引：34

作者：

An, L. ^{[1
]}

Zhao, T. S. ^{[1
]}

Zhou, X. L. ^{[1
]}

Wei, L. ^{[1
]}

Yan, X. H. ^{[1
]}

机构：

[1] Hong Kong Univ Sci & Technol, Dept Mech & Aerosp Engn, Kowloon, Hong Kong, Peoples R China

来源：

RSC ADVANCES | 2014年 / 4卷 / 110期

关键词：

NICKEL FOAM CATHODE; HIGH-POWER DENSITY; DIRECT BOROHYDRIDE; MEMBRANE; COMPLEX; OUTPUT;

D O I：

10.1039/c4ra10196k

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In conventional ethanol-hydrogen peroxide fuel cells, the cathode potential is created by the reduction reaction of hydrogen peroxide. In this work, we propose to create the cathode potential by introducing a redox couple to the cathode while using hydrogen peroxide to chemically charge the redox ions. The idea not only completely eliminates the mixed-potential issue associated with the direct reduction of hydrogen peroxide, but also enables faster cathodic electrochemical kinetics with no catalysts. Experimentally, it is demonstrated that the ethanol-hydrogen peroxide fuel cell with a redox couple of V(IV)/V(V) yields a peak power density of 450mW cm(-2) at 60 degrees C, which is 87.5% higher than that of the conventional cell with direct reduction of hydrogen peroxide.

引用

页码：65031 / 65034

页数：4

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