122nd General Meeting of the KCS

Type Poster Presentation
Area Electrochemistry
Room No. Grand Ballroom
Time 10월 19일 (금요일) 11:00~12:30
Code ELEC.P-501
Subject Meso-scale Rh electrocatalysis for hydrogen evolution reaction in acid condition
Authors Gyu seop Hwang, Jaehuck Choi, Yang-Rae Kim*
Department of Chemistry, Kwangwoon University, Korea
Abstract Hydrogen is expected to be one of the most important energy sources to solve the environmental and energy critical situation due to its high energy density and little environmental pollution. There is a well-known volcano-type relationship between energetics and current density for hydrogen evolution reaction (HER) catalysts. The Pt-based catalysts located on the top of the volcano considered as the most effective ones. Nevertheless, the major drawback of Pt based catalysts is their high cost. So, it is significantly important to design and synthesize another metal-based efficient catalysts to substitute Pt catalysts. In this study, meso-scale Rh structures have been employed for HER. It is expected to show highly catalytic activity because it has abundant exposed active sites and highly accessible surfaces. And electrochemical performances of meso-scale Rh catalysts such as kinetics, electrochemical surface area, lower electrochemical resistance, and durability is intensively studied comparing at different pH electrolyte conditions.
E-mail hks2220@nate.com