[14p-P4-1~78] 17 Nanocarbon Technology（Poster）

[14p-P4-23] Electrochemical analysis of IrO₂/graphene catalysts for Oxygen Evolution Reaction

〇Masanori Hara¹, Badam Rajashekar¹, Kanishka De Silva¹, Hsin-Hui Huang¹, Masamichi Yoshimura¹ (1.Toyota Tech. Inst.)

Keywords:water electrolysis, anode catalyst, oxygen evolution reaction

We have prepared nanoparticle catalysts of iridium oxide (IrO₂) supported on graphene as electro-catalysts for oxygen evolution reaction (OER) on the anode of water electrolyzer, and electrochemical properties and durability of the IrO₂-graphene catalysts have been examined. The catalysts was prepared by thermal annealing of IrO₂ particle supported on graphene oxide, which was prepare by modified Hummers’ method, under hydrogen atmosphere. The reduced IrO₂-graphene catalysts showed high activity and durability.