| 학회 |
한국공업화학회 |
| 학술대회 |
2014년 가을 (11/12 ~ 11/14, 엑스코(대구)) |
| 권호 |
18권 2호 |
| 발표분야 |
전기화학-포스터 |
| 제목 |
Improving the Catalytic Activity of Carbon Supported Platinum-Cobalt Nanoparticle for the Oxygen Reduction Reaction via Post Treatment Surface Modifications |
| 초록 |
Polymer electrolyte membrane fuel cells (PEMFC) are a sort of electrochemical devices that exerts the conversion of chemical energy into electrical energy under low operating temperatures. Due to the sluggish oxygen reduction reaction (ORR) in PEMFC, oxygen electrode catalysts that lower the overpotential are of significant importance. To reduce the usage of Pt, well known to be the best ORR catalyst but extremely expensive, research continues to be done to develop Pt-based catalysts that have been treated to create a Pt enriched surface. Herein we synthesized carbon supported Platinum-Cobalt nanoparticles and conducted acid and heat treatments to provide evidence of improved ORR activity due to a Pt rich surface structure. Physical and electrochemical characterizations were determined using tools such as X-ray diffraction, cyclic voltammetry (CV), and X-ray photoelectron spectroscopy (XPS) |
| 저자 |
김미주, 강윤식, 이명재, Stanfield Youngwon Lee, 신희종, 성영은
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| 소속 |
서울대 |
| 키워드 |
Polymer electrolyte membrane fuel cells; oxygen reduction reaction; fuel cell catalyst; Platinum-Cobalt nanoparticles
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| E-Mail |
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