期刊
JOURNAL OF MEMBRANE SCIENCE
卷 507, 期 -, 页码 135-142出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.memsci.2016.02.027
关键词
Polymer electrolyte membrane fuel cells; Sulfonated poly(arylene ether ketone); Block copolymers; Membrane; Proton conductivity
资金
- Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education, Science, and Technology [2014R1A1A2057056]
- National Research Foundation of Korea [2014R1A1A2057056] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Sulfonated poly(arylene ether ketone) (SPAEK) block copolymers were synthesized through nucleophilic aromatic substitution polymerization. Compared with a Nation (NRE-212), state-of-the-art proton conducting membrane, the block copolymer membrane showed a well separated phase morphology and high proton conductivity under fully hydrated condition at 80 degrees C. The fuel cell operated with a SPAEK membrane showed a current density of 1617 mA cm(-2) at 0.6 V under 100% relative humidity (RH), whereas a NRE-212 membrane exhibited a current density of 1238 mA cm(-2), which is about 30% lower than newly prepared SPEAK membrane. In addition, the maximum power density of 1160, and 800 mW cm(-2) was observed for SPAEK, NRE-212 membranes, respectively at 80 degrees C under 100% RH condition. The SPEAK membrane exhibited 1.4-folds enhancement in the maximum power density in comparison with NRE-212 membrane. (C) 2016 Elsevier B.V. All rights reserved.
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