| 학회 |
한국고분자학회 |
| 학술대회 |
2017년 봄 (04/05 ~ 04/07, 대전컨벤션센터) |
| 권호 |
42권 1호 |
| 발표분야 |
대학원생 구두발표 (발표15분) |
| 제목 |
Three-Dimensional Interlocking Interface: Mechanical Nanofastener for High Interfacial Robustness of Polymer Electrolyte Membrane Fuel Cells |
| 초록 |
Until now, the challenge in adopting hydrocarbon (HC) membranes for polymer electrolyte membrane fuel cells (PEMFCs) has been the interfacial delamination between the catalyst layers (CLs) and HC membrane which causes significant performance loss. Here, we present a scalable mechanical nanofastener featuring a three-dimensionally interlocked interfacial structure between the HC membrane and CL as a novel strategy to overcome the interfacial issue. It is achieved by forming nano-porous skins on both sides of the HC membrane and successively filling the pores with PFSA ionomers with wet-coating methods. The interlocking interface tightly binds the HC membrane and CL due to its highly-interlocked ball and socket joint structure. The membrane electrode assembly with the three-dimensional interlocking interface exhibits 20-times higher durability than that with the flat interface, paving a way to achieve highly robust and cost-effective HC membrane-based PEMFCs for automotive use. |
| 저자 |
육성민1, 최선규1, 이동현1, 두기수1, 김희탁2
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| 소속 |
1Korea Advanced Institute of Science and Technology, 2KAIST |
| 키워드 |
Three-dimensional interlocking interface; hydrocarbon membrane; polymer electrolyte membrane fuel cell; interfacial bonding strength; humidity cycling durability
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| E-Mail |
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