Electrochemical oscillations in the methanol oxidation on Pt

被引：94

作者：

Lee, J ^{[1
]}

Eickes, C ^{[1
]}

Eiswirth, M ^{[1
]}

Ertl, G ^{[1
]}

机构：

[1] Max Planck Gesell, Fritz Haber Inst, D-14195 Berlin, Germany

来源：

ELECTROCHIMICA ACTA | 2002年 / 47卷 / 13-14期

关键词：

methanol; electro-oxidation; hidden negative differential resistance; galvanostatic potential oscillations;

D O I：

10.1016/S0013-4686(02)00075-0

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Experimental observations of temporal dynamics in the electrocatalytic oxidation of methanol (CH3OH) on a polycrystalline platinum electrode are reported, Hidden negative differential resistance (HNDR) and instabilities of the system were investigated by means of an electrochemical impedance spectrum analysis and potential oscillations under galvanostatic control. This result could be applied for a direct methanol fuel cell (DMFC) with higher energy efficiency. (C) 2002 Published by Elsevier Science Ltd.

引用

页码：2297 / 2301

页数：5

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