Azobenzene-modified oxygen-fed graphite/PTFE electrodes for hydrogen peroxide synthesis

被引：51

作者：

Forti, J. C.

Nunes, J. A.

Lanza, M. R. V.

Bertazzoli, R. ^{[1
]}

机构：

[1] Univ Estadual Campinas, Dept Mat Engn, Fac Engn Mecan, CP 6122, BR-13083970 Campinas, SP, Brazil

[2] Univ Sao Francisco, BR-12916900 Braganca Paulista, SP, Brazil

来源：

JOURNAL OF APPLIED ELECTROCHEMISTRY | 2007年 / 37卷 / 04期

基金：

巴西圣保罗研究基金会;

关键词：

hydrogen peroxide; gas diffusion electrodes; azobenzene; electrochemistry;

D O I：

10.1007/s10800-006-9285-x

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The performance of a catalyzed H2O2 electrogeneration process using a modified oxygen-fed graphite/PTFE electrode is reported. The organic redox catalyst chosen for incorporation into the graphitic mass was azobenzene. The yield of the hydrogen peroxide is related to the applied potential and to azobenzene concentration. Modification of the gas diffusion electrode with azobenzene improved hydrogen peroxide production, and the overpotential for oxygen reduction was shifted to less negative values compared to the performance of a non-catalyzed electrode, indicating that these modified electrodes have good electro-activity.

引用

收藏

页码：527 / 532

页数：6

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