123rd General Meeting of the KCS

Type Oral Presentation
Area Oral Presentation of Young Inorganic Chemists
Room No. Room 401+402
Time THU 10:40-10:50
Code INOR.O-11
Subject 3d-transition metal doped Ir-based octahedral nanocages as efficient electrocatalysts for the oxygen evolution reaction
Authors Taehyun Kwon, Minki Jun, Kwangyeol Lee*
Department of Chemistry, Korea University, Korea
Abstract Nanocatalysts with hollow interior have received enormous attention due to their high electrocatalytic activity toward water splitting. Iridium (Ir)-based hollow nanostructures, in particular, have shown a great potential as stable electrocatalysts for the oxygen evolution reaction (OER) under acidic condition, which is the rate determining step for overall water splitting reaction. We have recently discovered that the cobalt (Co) doping to the Ir oxide material phase greatly boosts the catalytic efficiency of oxygen evolution reaction by otherwise not very active Ir oxide, derived from IrCu phase. We further found that other 3d-transition metal elements such as Mn and Zn like Co could also enhance the catalytic efficiency of Ir oxide phase. In this seminar, we will describe the role of these transition metal dopants in the catalytic Ir oxide phase and point out the future direction of OER catalyst design.
E-mail akssustka123@korea.ac.kr