| 학회 |
한국공업화학회 |
| 학술대회 |
2013년 봄 (05/01 ~ 05/03, ICC JEJU) |
| 권호 |
17권 1호 |
| 발표분야 |
포스터-전기화학 |
| 제목 |
Ordered macroporous inverse opal structured Pt electrode and their application to fuel cells |
| 초록 |
Ordered macroporous inverse opal structured Pt electrode was fabricated to membrane electrode assemblies (MEAs) in polymer electrolyte membrane fuel cells by pulse electro-deposition following PS colloidal crystal template on gas diffusion layers (GDLs). GDLs were used as substrates in order to directly apply inverse opal structure into MEAs, without additional transfer process. In disordered structure electrodes, the gas molecules tend to be impeded by the pore walls and other particles, therefore effective diffusivity is lower than inverse opal structured Pt electrode. Inverse opal structured electrode shows enhanced mass transfer and water management because it has large effective diffusivity due to open and interconnected pore architecture, as well thinner electrode. Such surpassing properties of the inverse opal structured electrode enable that it would be attractive materials for various applications in electrochemical device. |
| 저자 |
김옥희1, 김민형1, 김민정1, 조용훈2, 성영은1
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| 소속 |
1서울대, 2국민대 |
| 키워드 |
PEMFC; MEA; ordered electrode; invers opal structure
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| E-Mail |
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