| 학회 |
한국공업화학회 |
| 학술대회 |
2010년 가을 (10/27 ~ 10/29, 대전컨벤션센터) |
| 권호 |
14권 2호 |
| 발표분야 |
환경.에너지 |
| 제목 |
Increased Pt Stability and Activity for Oxygen Reduction via Alloy ofEarly Transition Metals |
| 초록 |
Herein we report more active and stable electrocatalytic cathode materials consisting of Pt-based alloys involvingearly transition metals. We focused on the electronic and lattice-strain effect of the Pt-Y alloys for the purpose of analyzing the activity. To clarify these effects, we introduced a correlation between the d-band structure of Pt induced by its lattice-strain and the ORR activity. In addition, we investigated the stability on Pt-based binary alloy electrodes by applying the calculated heat of alloy formation to analyze the degree of segregation. Our results show keys toward resolving serious problems to make PEMFC economically viable. |
| 저자 |
유성종, 황승준, 김정운, 김수길, 임태훈
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| 소속 |
한국과학기술(연) |
| 키워드 |
고분자 막 연료전지; Chathod; Bimetallic Alloy; Stability; early transition metal
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| E-Mail |
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