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

摘要

Thin nanostrctured layers on surfaces of nickel or its alloys for quickly achieving high hydrogen absorption 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 ina reducing atmosphere.