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| Type |
Poster Presentation |
| Area |
Inorganic Chemistry |
| Room No. |
Event Hall |
| Time |
4월 19일 (목요일) 11:00~12:30 |
| Code |
INOR.P-177 |
| Subject |
Achieving Remarkable Activity and Durability towards the Oxygen Reduction Reaction Based on Ultrathin Pt-Co Nanowires |
| Authors |
ruqia bibi, Sang-Il Choi*
Department of Chemistry, Kyungpook National University, Korea
|
| Abstract |
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. |
| E-mail |
ruqiaharoon@gmail.com |
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121st General Meeting of the KCS