THE POTENTIAL DEPENDENCE OF INTERMEDIATES IN METHANOL OXIDATION OBSERVED IN THE STEADY-STATE BY FTIR SPECTROSCOPY

被引：39

作者：

CHANDRASEKARAN, K

WASS, JC

BOCKRIS, JO

机构：

[1] Department of Chemistry, Texas A&M University, Texas 77843, College Station

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 1990年 / 137卷 / 02期

关键词：

D O I：

10.1149/1.2086491

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The structure of electrochemical intermediates of methanol oxidation on platinum in aqueous sulfuric acid has been investigated under steady state conditions using polarization modulation Fourier transform infrared reflection absorption spectroscopy. Terminally bonded CO and bridge-bonded CO are observed in the cathodic to anodic sequence. However, only bridge-bonded CO is observed in the anodic to cathodic sequence. The conventionally assumed C—O—H group was not observed. The spectroscopic results are compared with similar information obtained by means of radiotracer and potentiodynamic techniques. A new mechanism is proposed which is intended to apply to the steady-state situation and may differ from that pertaining to potential sweep data. © 1990, The Electrochemical Society, Inc. All rights reserved.

引用

页码：518 / 524

页数：7

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