Abstract
Different from the hitherto developed direct electrolysis of water, this new method generates hydrogen gas from water easily, smoothly and immediately through an indirect processes, i.e. so-called double pre-catalytic decomposition consisting of two pre-catalytic processes. One of them consists of a metal-pile or alloyed catalyzer and the other of an ammoniac aqueous solution of metallic ammonium complex salts or hydroxides. These two pre-catalytic agents generate hydrogen gas from water by mutual contact reaction, producing aside ammine coordinate compounds from the ammonium complex salts or hydroxides in a redox-cyclic system introducing the environmental thermal energy from the outside atmosphere. These catalyzers are effectively useful for several days after once settled and only by supplying the decomposed amount of water from outside.
