American Chemical Society
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Electrochemical Water-Splitting Based on Hypochlorite Oxidation

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journal contribution
posted on 2015-06-17, 00:00 authored by Kateřina Minhová Macounová, Nina Simic, Elisabet Ahlberg, Petr Krtil
Effective catalytic water-splitting can be electro­chemically triggered in an alkaline solution of sodium hypo­chlorite. Hypo­chlorite oxidation on poly­crystalline platinum yields ClO· radicals, which initiate a radical-assisted water-splitting, yielding oxygen, hydrogen peroxide, and protons. The efficiency of the O2 production corresponds to about two electrons per molecule of the produced O2 and is controlled primarily by the hypo­chlorite concentration and pH.