The present invention relates to an oxidation / reduction reaction of platinum-containing catalyst and its use, cerium (Ce), zirconium (Zr), and rhenium (Re) of the selected at least one water-soluble salt of a metal, a water-soluble salt of platinum, of C2~C10 and with an alkylene oxide, and that the supported catalyst composition comprising a water carrier comprising alumina, silica, titania and at least one of the drying and firing characteristics. And the catalyst according to the invention can be simply prepared without particular limitations on the water-soluble platinum salts of the available types, this carbon monoxide water gas transfer reaction, a three-way catalytic reaction, various oxidation reactions and nitrogen oxide such as the selective oxidation reaction of carbon monoxide (NOx ), when applied to a reduction reaction such as elimination shows an excellent catalytic activity. In particular, it shows a superior performance in hard certain applying the conventional high-temperature water gas transfer catalysts for the reaction catalyst and a low temperature water gas for transition reaction temperature range, the temperature in it is possible to remove carbon monoxide, without the loss of hydrogen due to the methanation reaction fuel it is particularly useful in the hydrogen production step to produce high purity hydrogen in the cell. Oxidation-reduction reaction, a fuel cell, hydrogen, carbon monoxide, water gas reaction, nitrogen oxides, a catalyst of platinum, cerium, zirconium, ceria, zirconia, an alkylene oxide