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Meso-macro-porous monolithic Pt-Ni/Al(2)O(3) catalysts used for miniaturizing preferential carbon monoxide oxidation reactor.

Meso-macro-porous monolithic Pt-Ni/Al(2)O(3) catalysts with platinum and nickel in interaction and in a highly dispersed state have been successfully prepared, and the obtained catalysts are highly efficient for CO removal from hydrogen rich gases via preferential oxidation; the results show that preparing catalysts to meso-macro-porous monolithic structure is a promising way for the miniaturization of CO removing reactor.