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제118회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Organometallic catalyst with N-doped graphene complex : Implications for oxygen reduction reaction reactivity of organometallic Co-O4-N-species

등록일
2016년 8월 30일 14시 39분 07초
접수번호
2172
발표코드
MAT.P-614 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
10월 14일 (금요일) 11:00~12:30
발표형식
포스터
발표분야
재료화학
저자 및
공동저자
박성희, 박성진1,*
인하대학교 화학화공융합대학원, Korea
1인하대학교 화학과, Korea
Organometallic complexes with graphene-based materials can give rise to enhanced catalytic performance. It is important to understand the chemical structures within hybrid materials. In this work, archetypical hybrid materials are synthesized by the reaction of an organometallic complex, [CoII(acac)2] (acac = acetylacetonate), with N-doped graphene-based materials at room temperature. Experimental characterization of the hybrid materials and theoretical calculations reveal that the organometallic cobalt-containing species is coordinated to heterocyclic groups in N-doped graphene as well as to its parental acac ligands. The hybrid material shows high electrocatalytic activity for the oxygen reduction reaction (ORR) in alkaline media, and superior durability and methanol tolerance to a Pt/C catalyst. Based on the chemical structures and ORR experiments, the catalytically active species is identified as a Co-O4-N structure.

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