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  • 09월 10일 16시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제124회 대한화학회 학술발표회, 총회 및 기기전시회 안내 High Performance of Anion Exchange Membrane Water Electrolyzer through pH-Controlled CuCo Oxides Catalyst via Co-Precipitation

2019년 8월 29일 15시 00분 13초
ENVR.O-4 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
목 10시 : 20분
Environmental Energy - General Student Session
저자 및
Myeong Je Jang, Sungmin Park1, Sung Mook Choi2,*
Advanced Materials Engineering, University of Science & Technology, Korea
1material science & engineering, Pusan National University, Korea
2Surface Technology Division, Korea Institute of Materials Science, Korea
An inexpensive, highly efficient and stable electrocatalyst for oxygen evolution reaction is important for the production of pure hydrogen and the commercialization of water electrolysis. In this talk, we reports a highly active nanosized Cu-Co oxide particles for oxygen evolution reaction (OER), through formulating by co-precipitation. We figure that out the catalytic activity of precipitated Cu/Co mixtures is dependent on the ratio of these phases, which can be controlled by the pH of the solution. The oxygen vacancy formed by incorporating Cu into Co3O4 and the increase in Co3+ due to an increase in pH improved the catalytic activity of oxygen evolution. The nanosized Cu-Co oxide particle exhibits activity with an overpotential of 285 mV at a current density of 10 mA cm-2. Furthermore, the anion exchange membrane water electrolysis cell exhibits the best performance in terms of cell voltage (1.8 V) at 1,300 mA cm-2. This result indicates that Cu-Co oxide can be used as an oxygen evolution reaction catalyst when a full cell is configured.