| Nuclear magnetic resonance microimaging investigation of membrane electrode assembly of fuel cells: morphology and solvent dynamics. | |
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MedLine Citation:
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PMID: 19106022 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The structure and solvent (water, methanol, etc.) dynamics of a number of fuel membrane electrode assembly (MEA) samples are studied with nuclear magnetic resonance microimaging with spatial resolution of tens of micrometers. The micrometer-scale inhomogeneity of the samples is observed and confirmed with various weighting methods. In particular, diffusion coefficients at different positions in MEA are clearly differentiated. Furthermore, chemical shift selection imaging enables one to investigate the spatial distribution and dynamics of individual chemical groups. These types of information offer us insights into the working principle of fuel cell and pave the way to in situ studies of operating fuel cells. |
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Authors:
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Zhen Wu; Chien-Shun Wu; Peter Po-Jen Chu; Shangwu Ding |
Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2008-12-23 |
Journal Detail:
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Title: Magnetic resonance imaging Volume: 27 ISSN: 1873-5894 ISO Abbreviation: Magn Reson Imaging Publication Date: 2009 Jul |
Date Detail:
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Created Date: 2009-06-22 Completed Date: 2009-09-02 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8214883 Medline TA: Magn Reson Imaging Country: Netherlands |
Other Details:
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Languages: eng Pagination: 871-8 Citation Subset: IM |
Affiliation:
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Department of Chemistry, National Sun Yat-sen University, Kaohsiung, Taiwan 80424, Republic of China. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Electric Power Supplies* Electrodes* Equipment Failure Analysis / methods* Magnetic Resonance Spectroscopy / methods* Materials Testing / methods* Membranes, Artificial* Microscopy / methods* Solvents / analysis*, chemistry* |
| Chemical | |
Reg. No./Substance:
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0/Membranes, Artificial; 0/Solvents |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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