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  • 02월 19일 10시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

대한화학회 제121회 학술발표회 및 총회 Achieving Remarkable Activity and Durability towards the Oxygen Reduction Reaction Based on Ultrathin Pt-Co Nanowires

등록일
2018년 2월 7일 15시 41분 49초
접수번호
5370
발표코드
INOR.P-177 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
4월 19일 (목요일) 11:00~12:30
발표형식
포스터
발표분야
Inorganic Chemistry
저자 및
공동저자
ruqia bibi, Sang-Il Choi*
Department of Chemistry, Kyungpook National University, Korea
Pt-Co alloy nanocatalysts have been explored extensively due to their superior activity towards the oxygen reduction reaction (ORR) compared to pure Pt. Here we report facile strategy for synthesis of ultrathin one dimensional polycrystalline and single crystalline Pt-Co nanowires using wet chemical approach. We investigated the mechanism of nanowire formation by characterizing the samples obtained at different synthesis conditions. The single crystalline Pt-Co NWs/C exhibit superior ORR mass activity (2.38 A mg-1Pt) which is 3 and 9 times higher than the polycrystalline Pt-Co NWs/C and commercial Pt/C, respectively. However, after 5000 cycles of durability test, the polycrystalline Pt-Co NWs/C exhibited a slight increase of mass activity but singlecrystalline Pt-Co NWs/C and commercial Pt/C showed considerable losses (23.5 and 23% respectively) in their mass activities.
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