| 학회 |
한국공업화학회 |
| 학술대회 |
2019년 가을 (10/30 ~ 11/01, 제주국제컨벤션센터(ICC JEJU)) |
| 권호 |
23권 2호 |
| 발표분야 |
포스터_전기화학 |
| 제목 |
A magnetic field-induced through-plane alignment of proton highway in proton exchange membrane |
| 초록 |
Proton exchange membranes with high proton conductivity in the through-plane direction are enormously required for fuel cells. However, isotropically distributed proton conducting channels of current membranes imposes a limitation. Herein, we present aligned proton conducting channel in membrane thickness direction, achieved by magnetic field-induced alignment of proton conductive magnetic tungsten disulfides nanowires in Nafion membrane. In contrast to a tortuous proton pathway in conventional Nafion membranes, the nanowire/Nafion composite membrane provides unidirectional pathway in thickness direction. Due to the unidirectional water channels enriched at the interface of the nanowire and Nafion, the composite membrane exhibits enhanced proton conductivity at low humidifications. The proton exchange membrane fuel cell employing the composite membrane shows significantly improved power performance. |
| 저자 |
현종현, 두기수, 김희탁, 육성민, 이동현, 이동욱, 최선규, 권지윤
|
| 소속 |
한국과학기술원 |
| 키워드 |
magnetic alignments; tungsten disulfides; proton conduction; proton exchange membrane fuel cells; composite membranes
|
| E-Mail |
|
