Abstract
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.
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Original Russian Text © G.A. Kolyagin, V.L. Kornienko, Yu.A. Kudenko, A.A. Tikhomirov, S.V. Trifonov, 2013, published in Elektrokhimiya, 2013, Vol. 49, No. 10, pp. 1120–1124.
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Kolyagin, G.A., Kornienko, V.L., Kudenko, Y.A. et al. Electrosynthesis of hydrogen peroxide from oxygen in a gas-diffusion electrode in solutions of mineralized exometabolites. Russ J Electrochem 49, 1004–1007 (2013). https://doi.org/10.1134/S1023193513100091
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DOI: https://doi.org/10.1134/S1023193513100091