Study of the electrooxidation of ethanol on hydrophobic electrodes by DEMS and HPLC

被引：36

作者：

Pereira, MG

Jiménez, MD

Elizalde, MP

Manzo-Robledo, A

Alonso-Vante, N

机构：

[1] Univ Poitiers, CNRS, Lab Electrocatal, UMR 6503, F-86022 Poitiers, France

[2] Univ Autonoma Puebla, Fac Ciencias Quim, Puebla 72571, Pue, Mexico

[3] Univ Autonoma Puebla, Ctr Quim, Puebla 72571, Pue, Mexico

来源：

ELECTROCHIMICA ACTA | 2004年 / 49卷 / 22-23期

关键词：

Cu-PVC composite electrodes; DEMS; HPLC; ethanol oxidation; electrolysis; Ru nanoparticles;

D O I：

10.1016/j.electacta.2004.01.080

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The electrochemical oxidation of ethanol in alkaline solution has been studied on Cu-PVC electrode and Ni/Cu-PVC composite electrodes modified by ruthenium nanoparticles. The techniques used were cyclic voltammetry (CV), steady-state potentiostatic method, on line differential electrochemical mass spectrometry (DEMS), and high-performance liquid chromatography (HPLC). The chemical products: acetaldehyde and acetic acid were detected measuring the proper mass charge (m/z) ratios. These products were also confirmed by HPLC. The surface modification of composite electrodes by ruthenium nanoparticles promotes the formation of acetaldehyde. As shown by DEMS, the surface modification shifts the onset potential for oxygen evolution reaction on the Cu-PVC composite electrode towards more anodic values. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：3917 / 3925

页数：9

共 35 条

[1] Capability of a carbon-polyvinylchloride composite electrode for the detection of dopamine, ascorbic acid and uric acid [J].