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|
| Type |
Poster Presentation |
| Area |
Material Chemistry |
| Room No. |
Exhibition Hall 2 |
| Time |
4월 19일 (금요일) 11:00~12:30 |
| Code |
MAT.P-487 |
| Subject |
Surface Elemental Distribution Impact of Pt-Pb Hexagonal Nanoplates as Electocatalysts toward Methanol Oxidation Reaction |
| Authors |
Hee Jin Kim, Sang-Il Choi*
Department of Chemistry, Kyungpook National University, Korea
|
| Abstract |
The development of bimetallic Pt-based catalysts have been studied to improve the performance of direct methanol fuel cells because CO, a poisoning intermediate, reduces the catalytic activity of pure Pt catalysts. Herein, we synthesized Pt-Pb hexagonal nanoplates as electrocatalysts towards methanol oxidation reaction (MOR) and further control the Pt and Pb distributions on the surface of nanoplates through acetic acid (HAc) treatment. Consequently, we obtained Pt-Pb nanoplates and HAc-tread Pt-Pb nanoplate with homogeneous and heterogeneous distributions of Pt-Pb alloy surfaces, respectively. Pt-Pb nanoplates were exhibited enhanced electrocatalytic properties for MOR relative to HAc-treated Pt-Pb nanoplates, due to enhanced CO tolerant by modifying the electronic structure of Pt under the influence of oxophilic Pb. |
| E-mail |
heejin0881@nate.com |
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123rd General Meeting of the KCS