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제122회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Meso-scale Rh electrocatalysis for hydrogen evolution reaction in acid condition

등록일
2018년 8월 30일 11시 52분 01초
접수번호
2028
발표코드
ELEC.P-501 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
10월 19일 (금요일) 11:00~12:30
발표형식
포스터
발표분야
Electrochemistry
저자 및
공동저자
Gyu seop Hwang, Jaehuck Choi, Yang-Rae Kim*
Department of Chemistry, Kwangwoon University, Korea
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.

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