[9p-S202-1~10] Current Status of Water Electrolysis and Electrochemical CO2 Reduction

3:15 PM - 3:45 PM JST(6:15 AM - 6:45 AM UTC)

[9p-S202-5] Low Iridium Catalyst for Polymer Electrolyte Membrane Water Electrolysis

〇Yasuyuki Takamitsu¹, Takayoshi Mishima¹, Takuya Okada¹, Ryota Itoine¹ (1.Tosoh corp.)

Keywords:

water electrolysis,Iridium,Manganese oxide

A low-iridium catalyst, Ir-MnO₂, using manganese dioxide has been developed by RIKEN for use in polymer electrolyte membrane (PEM) water electrolysis. Tosoh Corporation is working on its industrialization. In Ir-MnO₂, using MnO₂ as a support forms highly active hexavalent iridium. Additionally, it has been confirmed that MnO₂ suppresses the dissolution of Ir. This makes it a catalyst expected to exhibit high activity and durability.