Catalytic properties of fully dense Ni₃Al-based thin foils (thickness below 50μm) with nano- or microstructure were investigated. The material under examination - thin foils without any additional catalytic coating, was successfully produced from as cast coarse-grained sheet by heavily cold rolling and recrystalization at appropriate chosen set of parameters. The examination has concerned to methanol decomposition into H₂ and CO in a temperature range up to 530°C in a quartz reactor. Excepts these products a little amount (below 1%) CO₂ and dimethyl ether was observed. The catalyzed reaction has started effectively at about 400°C, with methanol conversion about 90% or higher. Results of our investigations confirmed that the refinement of structure up to nanostructure essentially improved catalytic properties of investigated Ni₃Al foils.

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