期刊
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
卷 18, 期 3, 页码 876-879出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jiec.2012.01.019
关键词
Polymer electrolyte membrane fuel cell; Thermal imprint lithography; Nafion; Line-pattern; Three-phase boundary
资金
- National Research Foundation (NRF) [2009-0077153, 2011-0020936, 2009-0093814, R31-10013, 2010-0019111]
- Ministry of Education, Science and Technology of Korea
- National Research Foundation of Korea [2009-0077153, 2009-0093814, 2010-0020455] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
On purpose to enhance the performance of polymer electrolyte membrane fuel cell, micrometer- to nanometer-scale line patterns were introduced onto the electrolyte membrane using thermal imprint lithography. Single cell performance test and electrochemical analysis were conducted for the membrane electrode assembly containing patterned and pristine Nafion membranes. At a cell voltage of 0.6 V, current density of the single cells containing micro-patterned membrane was larger by as large as 30% than that of the single cell containing untreated membrane. The performance enhancement appeared to result from the enlarged membrane/catalyst interfacial area. The performance of single cell containing nano-patterned membrane was lower than that containing pristine membrane, which is due to the poor interfacial contact between large catalyst particles and small gaps of the pattern. (C) 2012 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
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