VOLTAMMETRIC STUDY OF THE NATURE OF ADSORBED RESIDUES ARISING FROM IRREVERSIBLE ADSORPTION OF ACETALDEHYDE AND ETHANOL ON PT(111) IN ACID-MEDIA - 1ST OXIDATION PEAK

被引：10

作者：

CASES, F ^{[1
]}

MORALLON, E ^{[1
]}

VAZQUEZ, JL ^{[1
]}

PEREZ, JM ^{[1
]}

ALDAZ, A ^{[1
]}

机构：

[1] UNIV ALICANTE,DEPT QUIM FIS,E-03080 ALICANTE,SPAIN

来源：

JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 1993年 / 350卷 / 1-2期

关键词：

D O I：

10.1016/0022-0728(93)80210-9

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Irreversible adsorption of ethanol and acetaldehyde on Pt(111) in acid medium results in different adsorbed compounds. This paper describes a study of the nature of the adsorbed species, giving an anodic voltammetric peak at 0.56 V (vs. RHE). These species could be associated with one carbon atom species, because (i) the existence of adsorbed CO (in the case of ethanol and acetaldehyde) implies the rupture of the C-C bond, and (ii) the electrochemical reduction of formaldehyde at potentials lower than or equal to 0.1 V gives the peak at 0.56 V. This reduction must give one carbon atom species.

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页码：267 / 277

页数：11

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