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| Type |
Poster Presentation |
| Area |
Electrochemistry |
| Room No. |
Exhibition Hall 2+3 |
| Time |
10월 20일 (금요일) 13:00~14:30 |
| Code |
ELEC.P-454 |
| Subject |
Methanol Dehydrogenation at Au@Pt catalysts for Methanol oxidation |
| Authors |
Hwakyeung Jeong, Jongwon Kim*
Department of Chemistry, Chungbuk Natioanl University, Korea
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| Abstract |
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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| E-mail |
hkborn@naver.com |
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120th General Meeting of the KCS