| 摘要 |
PURPOSE:To improve remarkably the conversion into silico hydride in reacting an alloy containing Mg and S with an acid to produce the silicon hydride expressed by a specific formula, by coating particles of the alloy previously with a metal oxide. CONSTITUTION:Mg2Si, etc. is used as an alloy containing Mg and Si, and the atomic ratio Mg/Si thereof is about 1/3-3/1. The particle diameter is about <=1,000mu, and further the third component may be contained therein. The silicon alloy is coated with about 0.0001-10pts.wt., based on the silicon alloy, metal oxide, e.g. SiO2 or Al2O3. Hydrochloric acid or sulfuric acid, etc. (in about 1- 50wt% concentration) is reacted with the treated silicon alloy to produce the aimed silicon hydride expressed by the general formula SinH2n+2 (n is a positive integer >=1).
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