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US 8,802,307 B2Granted
Method for producing dihydrogen from hydrogenated silicon
AssigneesCentre National de la Recherche Scientifique (CNRS), Universite De Franche-Comte
InventorBernard Gauthier-Manuel
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Abstract
A process for the production of dihydrogen from hydrogenated silicon by bringing the hydrogenated silicon into contact with an alkaline solution. Devices of the fuel cell type using this hydrogen production method are also described.
Claims12
A method for producing dihydrogen, comprising the steps of:
- treating electrochemically by electrochemical anodization a silicon substrate with hydrofluoric acid, whereby a hydrogenated silicon comprising —Si—H surface bonds is obtained;
- bringing the obtained hydrogenated silicon into contact with an alkaline solution selected from the group consisting of NaOH, KOH and NH4OH and having a pH from 9 to 13, whereby (i) dihydrogen is generated and (ii) —Si—H surface bonds are reformed on the surface of the hydrogenated silicon;
- and
- recovering and/or utilizing the generated dihydrogen.
1 more element
Dependencies are inferred from the claim text.