| 학회 | 한국화학공학회 |
| 학술대회 | 2014년 봄 (04/23 ~ 04/25, 창원컨벤션센터) |
| 권호 | 20권 1호, p.547 |
| 발표분야 | 에너지 |
| 제목 | Effect of solvent on Nafion ionomer and catalyst layer for proton exchange membrane fuel cell application |
| 초록 | In the proton exchange membrane fuel cell (PEMFC), the electrode structure impacts the fuel-cell performance, durability, and cost. However, studies of the factors that affect the final morphology of the electrode are still insufficient. In this study, the effect of the solvent on the Nafion chain mobility and consequential the structure of the catalyst layer was investigated by using 19F NMR and atomic force microscopy (AFM). From 19F NMR and AFM experiments, the high Nafion chain mobility shows strong phase-separated structure of the agglomerated catalyst layer. In addition, the electrochemical performance of the membrane electrode assemblies (MEAs) fabricated from different solvents was examined in detail by cell polarization and cyclic voltammetry. Acknowledgement: This work was supported by the New & Renewable Energy of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Korea government Ministry of Knowledge Economy. (No. 20113010030030) |
| 저자 | 김태현, 이재유, 이성철 |
| 소속 | 한양대 |
| 키워드 | PEMFC; Solvent effect; Nafion chain mobility; Phase separation; catalyst layer |
| 원문파일 | 초록 보기 |
