Effect of oxidation of catalytically active silicon-based electrodes on water decomposition

摘要

In this work, we continue to study the revealed phenomenon of currentudcreation in the electrochemical system with distilled water during its decompositionudwithout any applied external voltage. Investigated are catalytically active (to decomposeudwater) electrodes based on silicon with modified surface (due to lapping, texturing,uddoping with palladium, creation of silicides) before and after thermooxidizing for 1 hourudin dry oxygen at 850 ºC. Also performed are investigations of time dependences for theudcurrent between silicon electrodes and counter-electrodes made of Al, Pt, Yb when usingudthe circuit with the external voltage V₀ = ± 9.7 V. Analyzed are the results obtained andudprospects for a further study.