| 학회 |
한국공업화학회 |
| 학술대회 |
2019년 가을 (10/30 ~ 11/01, 제주국제컨벤션센터(ICC JEJU)) |
| 권호 |
23권 2호 |
| 발표분야 |
포스터_전기화학 |
| 제목 |
Modification of Catalyst-Ionomer Interface and Pore Structure by Controlling Anion-Exchange Ionomer Dispersion |
| 초록 |
The ionomer-catalyst interface and electrode pore structure have a considerable impact on electrochemical characteristics of anion exchange membrane fuel cell (AEMFC). Generally, anion exchange membranes and ionomers are hydrocarbon-based polymers. Due to their low hydrophobicity of main polymer chain compared to PFSA-based polymer for proton exchange membrane fuel cell, so anion exchange polymers have poorly developed water channels and low gas permeability. For this reason, fabrication of an effective catalyst layer structure plays a key role to enhance AEMFC performance. Here, we observe the dispersion form of the commercially available anion-exchange polymer (I2, Acta), which changes according to three different alcohol-based dispersion media (ethanol, iso-propanol, and tert-butanol). The effect of the dispersion medium with different dielectric constants on the electrode pore structure is clearly confirmed by physical and electrochemical characterization. |
| 저자 |
김성준1, 허민1, 김용민1, 조용훈2, 성영은1
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| 소속 |
1서울대, 2강원대 |
| 키워드 |
Alkaline membrane fuel cell; pore structure; ionomer
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| E-Mail |
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