Electrosynthesis of p-methoxybenzaldehyde on graphite/Nafion membrane composite electrodes

被引:11
作者
Jiang, JH [1 ]
Wu, BL [1 ]
Cha, CS [1 ]
机构
[1] Wuhan Univ, Dept Chem, Wuhan 430072, Peoples R China
基金
中国国家自然科学基金;
关键词
solid polymer electrolyte; graphite; p-methoxybenzaldehyde; electrosynthesis; composite electrode;
D O I
10.1016/S0013-4686(97)10152-9
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
The electro-oxidation of p-methoxytoluene (p-MT) at the graphite/Nafion composite electrodes was investigated, p-Methoxybenzaldehyde (p-MBA) and a small amount of p-methoxybenzoic acid (p-MBAc) are obtained through preparative electrolysis of p-MT. There is slightly higher current efficiency at the composite electrode employing a Ce3+-Nafion membrane than at that employing a H+-Nafion membrane at low current densities.The electrochemical oxidation of p-MT is mainly a four-electron oxidation process controlled by the diffusion of some species. (C) 1998 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:2549 / 2552
页数:4
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