atmosphere containing 10 volume of methane as a result a pt 1 ni 1 pd 0 5 xc 72 supported electrochemical catalyst in an atomic ratio of 1 1 0 5 containing a metallic component of 40 wt was obtained 1 g of vulcan xc 72 was added to 100 ml of 95 volume ethyleneglycol aqueous solution and the resultant solution was stirred to prepare slurry a 7 53 ml of a hexachloroplatinic acid solution in ethyleneglycol 29 6 mgpt ml 1 15 ml of a 1m sodium tungstate aqueous solution and 6 71 ml of a nickel nitrate aqueous solution 10 mgni ml were mixed and the resultant mixture was added to the slurry a naoh was added to the resultant suspended solution to obtain ph 12 a microwave having a frequency of 2 45 khz and a power output of 700 w was irradiated to the resultant solution of ph 12 for 15 minutes the slurry was cooled to room temperature and a 3 m hcl solution was added thereto until ph of the slurry was decreased to 0 5 a solid phase was separated from the slurry washed until all chloride ions were removed and then dried the dried solid phase was heat treated at 500 u00b0 c for 4 hours under a nitrogen atmosphere containing 10 volume of methane as a result a pt 1 ni 1 w 1 xc 72 supported electrochemical catalyst in an atomic ratio of 1 1 1 containing a metallic component of 40 wt was obtained 1 g of vulcan xc 72 was added to 50 ml of 95 volume ethyleneglycol aqueous solution.