Insights of glycerol electrooxidation on polycrystalline silver electrode

被引：33
作者：
Suzuki, Nina Y. [1 ]
Santiago, Patricia V. B. [1 ]
Galhardo, Thalita S. [1 ]
Carvalho, Wagner A. [1 ]
Souza-Garcia, Janaina [1 ]
Angelucci, Camilo A. [1 ]
机构：
[1] Univ Fed ABC, Ctr Crencias Nat & Humanas, Av Estados 5001, BR-09210580 Santo Andre, SP, Brazil
来源：
JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 2016年 / 780卷
基金：
巴西圣保罗研究基金会;
关键词：
Glycerol; Electrooxidation; Silver; ALKALINE MEDIA; ELECTROCATALYTIC OXIDATION; PLATINUM-ELECTRODES; OXIDE FORMATION; INITIAL-STAGES; SURFACE; ACID; KINETICS; METHANOL; AU;
D O I：
10.1016/j.jelechem.2016.02.020
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
This work presents a detailed study of silver electrode activity toward glycerol electrooxidation reaction (GEOR) in alkaline media. The effect of pH and glycerol concentration on GEOR kinetics was investigated by cyclic voltammetry technique. It has been found that hydroxyl ions concentration leads to an oxidation current increase, which indicates that glyceroxide could be the active species for GEOR The presence of silver oxide layer inhibits the glycerol oxidation process, reaching maximum current densities of 2.3 mA cm(-2) (1 M glycerol in 1 M NaOH). HPLC studies indicate that formic, glycolic and glyceric acids are the main products. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：391 / 395
页数：5
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