▎ 摘　　要

NOVELTY - The core-shell structure catalyst has platinum (Pt) and gold (Au) whose total mass percentage content is 10 to 20%, and whose mol ratio is 1:0.3-0.6. A particle diameter range of the Pt-Au/ GR-RuO2 core-shell structure is 5-10nm. The graphene (Gr) is modified through a triethanolamine. USE - Platinum-gold/graphene-ruthenium (IV) oxide (Pt-Au/Gr-RuO2) core-shell structure catalyst used for fuel cell reaction process of formic acid in methanol fuel cell and formic acid fuel cell (all claimed). ADVANTAGE - The usage amount of the noble metal alloy is reduced, and the catalyst activity rate and stability of the core-shell structure catalyst are increased effectively.