▎ 摘　　要

NOVELTY - A monoatomic cobalt/graphene proton exchange membrane fuel cell catalyst preparing method involves adding graphene to the solution and stirring to obtain a mixed solution of sodium alginate graphene. The mixed solution is dropped into a secondary deionized water solution of cobalt acetate and zinc acetate, separated, washed and freeze-dried to obtain cobalt zinc alginic acid/graphene aerogel. The aerogel is calcined in a tube furnace to obtain monoatomic cobalt/graphene proton exchange membrane fuel cell catalyst. The fuel cell catalyst is tested with electrochemical workstations. USE - Method for preparing monoatomic cobalt/graphene proton exchange membrane fuel cell catalyst. ADVANTAGE - The method enables preparing monoatomic cobalt/graphene proton exchange membrane fuel cell catalyst with excellent catalytic performance, excellent stability, efficient development of the catalyst of the fuel cell, large scale application and development, important theoretical and practical significance and high metal utilization rate, in simple and cost effective manner. DETAILED DESCRIPTION - A monoatomic cobalt/graphene proton exchange membrane fuel cell catalyst preparing method involves adding a certain amount of graphene to the solution and stirring uniformly to obtain a mixed solution of sodium alginate graphene. The mixed solution of sodium alginate graphene is dropped into a secondary deionized water solution of cobalt acetate and zinc acetate with a syringe to form cobalt zinc alginic acid/graphene, separated and washed with secondary deionized water until free cobalt and zinc ions are not eliminated, and freeze-dried in freezing drier to obtain cobalt zinc alginic acid/graphene aerogel. The cobalt zinc alginic acid/graphene aerogel is calcined in a tube furnace to obtain monoatomic cobalt/graphene proton exchange membrane fuel cell catalyst. The fuel cell catalyst is tested with electrochemical workstations and rotating disk electrode.