NANOSTRUCTURED THIN LAYERS HAVING HIGH CATALYTIC ACTIVITY ON SURFACES OF NICKEL AND ITS ALLOYS AND A PROCESS FOR OBTAINING THEM

摘要

Thin nano structured layers on surfaces of nickel or its alloys for quickly achieving high hydrogen adsorption values (H/Ni˜0.7) through direct metal/gas contact. The said layers are produced by a process comprising the step of oxidising the said surfaces, applying a film of aqueous silica sol to them, subsequent heating in an -oxidising atmosphere and final activation through reduction in a reducing atmosphere.