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  • 09월 05일 17시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제120회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Methanol Dehydrogenation at Au@Pt catalysts for Methanol oxidation

등록일
2017년 8월 21일 14시 58분 32초
접수번호
0692
발표코드
ELEC.P-454 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
10월 20일 (금요일) 13:00~14:30
발표형식
포스터
발표분야
Electrochemistry
저자 및
공동저자
Hwakyeung Jeong, Jongwon Kim*
Department of Chemistry, Chungbuk Natioanl University, Korea
The methanol oxidation reaction (MOR) on Pt has received great attention as alternative power sources for portable electronics and transportation in DMFCs. It is widely accepted for MOR on Pt that the methanol molecule is first adsorbed on Pt, and then adsorbed methanol is further electrochemically reduced via different pathways; CO pathway or non-CO pathway. During the MOR involving CO as intermediates, dehydrogenation reactions of methanol should be preceded to produce COads. The methanol dehydrogenation reaction (MDHR) is important for elucidating the reaction mechanism of MOR. In this work, the methanol dehydrogenation reaction on Pt layers modified on Au surfaces using in-situ surface-enhanced Raman scattering (SERS) was investigated. The Pt layers with different the amount and coverage on dendritic Au rod (DAR) surfaces were fabricated using the self-terminating electrodeposition. The rate of MDHR at OCP and applied potential was examined by SERS techniques on different DAR@Pt(n) surfaces. Based on the SERS results, the effect of COads generated from the MDHR on the CV measurement of MOR was examined.

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