Journal
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
Volume 43, Issue 48, Pages 21940-21948Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2018.08.214
Keywords
Proton exchange membrane; Sulfonated poly (ether ether ketone); Proton conductivity; Phosphotungstic acid; Mesoporous silica nanospheres
Categories
Funding
- National Key Research and development Plan [2016YFC0303705]
- National Science and Technology Major Project [201505017-002]
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A highly stable composite proton exchange membrane (PEM) was developed by loading phosphotungstic acid in mesoporous silica nanospheres (HPW@MSNs) and blending with sulfonated poly (ether ether ketone) (SPEEK). The SPEEK/HPW@MSNs-0.5 membrane exhibits enhanced comprehensive performance, such as improved and stable proton conductivity and increased methanol barrier property. The proton conductivity decreased by 15.10% after 240 hat 60 degrees C and was 1.9 times lower than that of the SPEEK/HPW membrane. The selectivity of the SPEEK/HPW@MSNs-0.5 membrane was about 2.0 times that of the pure SPEEK membrane and 3.4 times that of the SPEEK/HPW membrane. (C) 2018 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
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