Electrosynthesis of hydrogen peroxide from oxygen in a gas-diffusion electrode in solutions of mineralized exometabolites

被引：17

作者：

Kolyagin, G. A. ^{[1
]}

Kornienko, V. L. ^{[1
]}

Kudenko, Yu. A. ^{[2
]}

Tikhomirov, A. A. ^{[2
]}

Trifonov, S. V. ^{[2
]}

机构：

[1] Russian Acad Sci, Siberian Branch, Inst Chem & Chem Technol, Krasnoyarsk, Russia

[2] Russian Acad Sci, Inst Biophys, Siberian Branch, Krasnoyarsk, Russia

来源：

RUSSIAN JOURNAL OF ELECTROCHEMISTRY | 2013年 / 49卷 / 10期

关键词：

electroreduction of oxygen; electrosynthesis of hydrogen peroxide; gas diffusion electrode; mineralization of biowaste; life-support system; processing of exometabolites; BLACK; ACID;

D O I：

10.1134/S1023193513100091

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The electrosynthesis of H2O2 in aqueous solutions (pH 1-9) of mineralized liquid and solid bio-wastes (exometabolites) for their processing in closed life-support systems was studied. It was shown that H2O2 can be obtained in these solutions by electrochemical reduction of oxygen in carbon black gas diffuse electrodes to concentrations of over 2 M with current efficiency 80%. The composition of the solution was found to affect the accumulation of H2O2 during the synthesis. The solutions can be concentrated further to 19 M H2O2. The results showed that the electrolytic method is promising for preparing H2O2 for closed life-support systems.

引用

页码：1004 / 1007

页数：4

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