121st General Meeting of the KCS

Type Symposium
Area Advanced Electrochemical Analysis
Room No. Room 202A
Time FRI 10:15-:
Code ELEC2-4
Subject Oxygen Activators for a Zero-activation-energy Electrocatalysis
Authors Hyun-Kon Song
School of Energy and Chemical Engineering, UNIST, Korea
Abstract Oxygen reduction reaction (ORR) is the cathodic process of fuel cells and the discharging process of metal air batteries. Its reverse reaction, oxygen evolution reaction (OER), is responsible for the charging process of metal air batteries and the anodic process of water electrolyzers. Electrocatalysts are required to overcome slow kinetics of ORR and OER. Two novel concepts are presented in this talk. The first concept is activators, which is identified as the material to help catalysts to improve kinetics of ORR or OER. The second concept, tandem-descriptor volcano plot (2D-VP), is relevant to providing a tool for understanding how the kinetics is improved in the presence of the activators.
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