PROCEEDED OF PREPARATION OF MONOSILANE ELECTROCHEMICALLY ASSISTS

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Proceeded from production of monosilane (SiH) including/understanding at least a stage a) of reaction in an engine (1) of at least a silicon alloy of formula MR. M ySi, in which M is a reducing metal, M an alkaline or alkaline-earth metal, X, there and Z vary from 0 to 1, Z being different from 0 and summons it x+y different D E 0, with an acid solution, the aforementioned reaction being assisted electrochemically by cathodic polarization of alloy in the acid solution by application of a density of current or of a tension such as the convertion rate molar of silicon contained in the aforementioned alloy into monosilane is higher than at least 80%.