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학술발표회초록보기

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제118회 대한화학회 학술발표회, 총회 및 기기전시회 안내 The results of KOH Processing on the Chemical Structure and Electrocatalytic Activity of Reduced Graphene Oxide Materials

등록일
2016년 8월 30일 16시 00분 17초
접수번호
2180
발표코드
MAT.P-616 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
10월 14일 (금요일) 11:00~12:30
발표형식
포스터
발표분야
재료화학
저자 및
공동저자
장다운, 박성진1,*
인하대학교 자연과학부/화학과, Korea
1인하대학교 화학과, Korea
Reduced graphene oxide (rG-O)-based materials have great efficient metal-free electrocatalysts for the oxygen reduction reaction (ORR) because of their electrical and electrochemical properties and large surface area. Long term durability and chemical stability of the catalysts in the presence of electrolytes such as aqueous KOH solution are important for their use in practical applications. In this study, three types of rG-O and rG-O-K (rG-O after reaction with KOH) materials were synthesized. The synthesized rG-O-K was compared with chemical structures, surface areas, and catalytic ORR performances those of the corresponding rG-O materials. The onset potentials of the rG-O materials for electrocatalytic reduction of oxygen are almost the same as those of the corresponding rG-O-K materials; however, the current density and the number of transferred electrons are significantly reduced. These data show that the catalytic ORR performance of rG-O-based materials can be altered by KOH.

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