THIN NANO STRUCTURED LAYERS WITH HIGH CATALYTIC ACTIVITY ON NICKEL OR NICKEL ALLOY SURFACES AND PROCESS FOR THEIR PREPARATION

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.