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Current Sensing Atomic Force Microscopy를 이용한 PEM의 수화 현상에 따른 모폴로지 변화 연구

Title
Current Sensing Atomic Force Microscopy를 이용한 PEM의 수화 현상에 따른 모폴로지 변화 연구
Translated Title
Current Sensing Atomic Force Microscopy Study of the Morphological Variation of Hydrated Pronton Exchange Membrane
Authors
권오성이상철손병락이동하
DGIST Authors
이상철손병락; 이동하
Issue Date
2014-08
Citation
한국태양에너지학회 논문집, 34(4), 9-16
Type
Article
Keywords
고분자 전해질 막 연료전지 (Proton exchange membrane fuel fell)고분자 전해질 막(Proton exchange membrane)이온 채널 (Ionic channel)원자간력 현미경 (Atomic force microscopy)수화 (Hydration)연료전지(Fuel Cell)
ISSN
1598-6411
Abstract
A proton exchange membrane is a core component in the proton exchange membrane fuel cell because the role of proton exchange membrane (PEM) is supplying proton conductivity to fuel cell, a gas separator, and insulating between an anode and cathode. Among various role of PEM, supplying proton conductivity is the most important and the proton conductivity is strongly related the structural evolution of PEM by hydration. Thus a lot of studies have done by past few decade based on small angle X-ray scattering and wide angle X-ray scattering for understanding morphological structure of the PEM. Resulting from these studies, several morphological models of hydrated PEM are proposed. Current sensing atomic force microscopy (CSAFM) can map morphology and conductance on the membrane simultaneously. It can be the best tool for studying heterogenous structured materials such as PEM. In this study, the hydration of the membrane is examined by using CSAFM. Conductance and morphological images are simultaneously mapped under different relative humidity. The conductance images, which are mapped from different relative humidity, are analyzed by statistical methode for understanding ionic channel variation in PEM.
URI
http://hdl.handle.net/20.500.11750/4915
DOI
10.7836/kses.2014.34.4.009
Publisher
한국태양에너지학회
Related Researcher
Files:
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Collection:
Convergence Research Center for Future Automotive Technology1. Journal Articles
Convergence Research Center for Wellness1. Journal Articles


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