Solid composition, hydrogen generating method, and proton exchange membrane fuel cell
AssigneeSNPE Materiaux Energetiques
InventorsNancy Desgardin, Christian Perut, Joel Renouard
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Abstract
The invention relates to a solid composition which can decompose with the generation of hydrogen according to a self-sustaining combustion reaction after initiation of this reaction by an appropriate heat source, this composition being characterized in that it comprises an alkali metal borohydride or alkaline earth metal borohydride and a perchlorate-based oxidizing salt corresponding to the general formula SClO4 in which X represents the NH4 group, an alkali metal or an alkaline earth metal.
Claims11
Solid composition which can decompose with the generation of hydrogen according to a self-sustaining combustion reaction after initiation of this reaction by an appropriate heat source, characterized in that the said composition consists of an alkali metal borohydride or alkaline earth metal borohydride and a perchlorate-based oxidizing salt corresponding to the general formula XClO4 in which X represents the NH4 group, an alkali metal or an alkaline earth metal.
Process for the generation of hydrogen by self-sustaining combustion of a solid composition comprising:
- preparing a pulverulent or granular homogeneous solid composition consisting of an alkali metal borohydride or alkaline earth metal borohydride and a perchlorate-based oxidizing salt of general formula XClO4 in which X represents an NH4 group, an alkali metal or an alkaline earth metal, agglomerating the solid composition to form a compact material,
- placing the compact material in a combustion chamber,
- initiating a self-sustaining combustion of the compact material with a heat source in the combustion chamber, and
- generating hydrogen from the self-sustaining combustion of the compact material in the combustion chamber.
Solid composition which can decompose with the generation of hydrogen according to a self-sustaining combustion reaction after initiation of this reaction by an appropriate heat source, characterized in that the said composition consists of an alkali metal borohydride or alkaline earth metal borohydride, a perchlorate-based oxidizing salt corresponding to the general formula XClO4 in which X represents the NH4 group, an alkali metal or an alkaline earth metal, and a stabilizer.
Dependencies are inferred from the claim text.