Indirect electrosynthesis of peracetic acid using hydrogen peroxide generated in situ in a gas diffusion electrode

被引：12
|
作者：
Chaenko, N. V. [1 ,2 ]
Kornienko, G. V. [1 ]
Kornienko, V. L. [1 ]
机构：
[1] Russian Acad Sci, Siberian Branch, Inst Chem & Chem Technol, Krasnoyarsk, Russia
[2] Siberian Fed Univ, Krasnoyarsk, Russia
来源：
RUSSIAN JOURNAL OF ELECTROCHEMISTRY | 2011年 / 47卷 / 02期
关键词：
indirect oxidation; hydrogen peroxide; gas-diffusion cathode; acetic acid; peracetic acid; active oxygen; catalyst; sulfuric acid; ammonium molybdate; FUEL-CELL; EPOXIDATION;
D O I：
10.1134/S1023193511020030
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Indirect electrochemical oxidation of acetic to peracetic acid in aqueous solutions using hydrogen peroxide generated in situ from O-2 in a gas diffusion electrode was studied. The use of sulfuric acid and ammonium molybdate as catalysts accelerated the formation of peracetic acid during the electrolysis, and the use of both catalysts allowed us to prepare 0.02 M solutions. The limiting stage of the electrosynthesis of peracetic acid was the chemical interaction of the substrate with the generated H2O2. The desired product mainly formed during the storage of the reaction mixture after the electrosynthesis. In electrolytes with more than 3.5 M acetic acid, the electrochemical activity of the gas-diffusion cathode decreased.
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页码：230 / 233
页数：4
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