In order to study the influence of carriers on platinum(Pt) based hydrophobic catalysts' activity,and explore the practicability of applying silicon carbide and cerium-zirconium composite oxides as carriers of hydrophobic catalysts,Pt based catalysts were prepared by microwave heating method,with carbon black,nanometer SiC and Ce0.4Zr0.6O2-γ-Al2O3 as carriers,respectively.Then Pt based catalysts were loaded on foam nickel(FN) with polytetrafluoroethylene latex,and hydrophobic catalysts were obtained.Structure of catalysts was analyzed by XRD,TEM,XPS,SEM,etc,moreover,their catalytic activity for recombination of H2-O2 and hydrogen-water liquid catalytic exchange was tested.Results show that Pt particles are evenly distributed on carriers' surface,and average size of Pt particles in Pt/C,Pt/SiC and Pt/Ce0.4Zr0.6O2-γ-Al2O3 are 4.46,1.67 and 1.77nm,respectively.Three valences,Pt(0),Pt(Ⅱ) and Pt(Ⅳ) exist in Pt/C and Pt/SiC catalysts.Pt/C and Pt/SiC catalyst particles are evenly distributed on the surface of foam nickel,but it is not the case for Pt/Ce0.4Zr0.6O2-γ-Al2O3.The catalytic activity of Pt/C/FN is quite high for both recombination of H2-O2 and hydrogen-water liquid catalytic exchange.The catalytic activities of Pt/SiC/FN and Pt/Ce0.4Zr0.6O2-γ-Al2O3/FN are high for recombination of H2-O2,however,they are quite low for hydrogen-water liquid catalytic exchange.