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나노입자 연구단
나노입자 연구단
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Membrane/Electrode Interface Design for Effective Water Management in Alkaline Membrane Fuel Cells

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Title
Membrane/Electrode Interface Design for Effective Water Management in Alkaline Membrane Fuel Cells
Author(s)
Jang, S; Min Her; Sungjun Kim; Jang, JH; Chae, JE; Choi, J; Choi, M; Kim, SM; Kim, HJ; Cho, YH; Yung-Eun Sung; Yoo, SJ
Publication Date
2019-09
Journal
ACS APPLIED MATERIALS & INTERFACES, v.11, no.38, pp.34805 - 34811
Publisher
AMER CHEMICAL SOC
Abstract
The recent development of ultrathin anion exchange membranes and optimization of their operating conditions have significantly enhanced the performance of alkaline-membrane fuel cells (AMFCs); however, the effects of the membrane/electrode interface structure on the AMFC performance have not been seriously investigated thus far. Herein, we report on a high-performance AMFC system with a membrane/electrode interface of novel design. Commercially available membranes are modified in the form of well-aligned line arrays of both the anode and cathode sides by means of a solvent-assisted molding technique and sandwich-like assembly of the membrane and polydimethylsiloxane molds. Upon incorporating the patterned membranes into a single-cell system, we observe a significantly enhanced performance of up to similar to 35% compared with that of the reference membrane. The enlarged interface area and reduced membrane thickness from the line-patterned membrane/electrode interface result in improved water management, reduced ohmic resistance, and effective utilization of the catalyst. We believe that our findings can significantly contribute further advancements in AMFCs. © 2019 American Chemical Society
URI
https://pr.ibs.re.kr/handle/8788114/6887
ISSN
1944-8244
Appears in Collections:
Center for Nanoparticle Research(나노입자 연구단) > Journal Papers (저널논문)
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