Dissociation and electrooxidation of formic acid at platinum in nonaqueous solutions as probed by in situ surface-enhanced Raman spectroscopy

被引：10

作者：

Cao, PG ^{[1
]}

Zhong, QL

Sun, YH

Gu, RN

机构：

[1] Suzhou Univ, Dept Chem & Chem Engn, Suzhou 215006, Peoples R China

[2] Jiangxi Normal Univ, Dept Chem, Nanchang 330027, Peoples R China

来源：

CHEMICAL PHYSICS LETTERS | 2003年 / 376卷 / 5-6期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1016/S0009-2614(03)01125-4

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：

Surface-enhanced Raman spectra (SERS) from a roughened platinum electrode in formic acid-containing dimethylformamide solutions have been examined combined with cyclic voltammetry techniques. The occurrence of surface poisoning by CO adsorption was confirmed by observation of both Pt-CO and internal CO modes simultaneously. Oxidation of HCOOH can occur to a large extent only after the desorption of CO from the surface. Similar observations were also obtained in absolute methanol solutions. Linearly bound CO on platinum was suggested for both nonaqueous systems. In addition, a high electro-catalytic activity for the present roughened SERS-active platinum surface was also assumed compared with smooth platinum surfaces. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：806 / 811

页数：6

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