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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Saga University, Hospital Medical Engineering Center, 5-1-1 Nabeshima, Saga,849-8501, JapanSaga University, Hospital Medical Engineering Center, 5-1-1 Nabeshima, Saga,849-8501, Japan
Noda, Minoru
Sakai, Yoshinobu
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Saga University, Hospital Medical Engineering Center, 5-1-1 Nabeshima, Saga,849-8501, JapanSaga University, Hospital Medical Engineering Center, 5-1-1 Nabeshima, Saga,849-8501, Japan
Sakai, Yoshinobu
Sakaguchi, Yoshiro
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Saga University, Hospital Medical Engineering Center, 5-1-1 Nabeshima, Saga,849-8501, JapanSaga University, Hospital Medical Engineering Center, 5-1-1 Nabeshima, Saga,849-8501, Japan
Sakaguchi, Yoshiro
Hayashi, Nobuya
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Kyushu University, Interdisciplinary Graduate School of Engineering Sciences, 6-1 Kasuga koen, Kasuga, Fukuoka,816-8580, JapanSaga University, Hospital Medical Engineering Center, 5-1-1 Nabeshima, Saga,849-8501, Japan