Journal
JOURNAL OF POWER SOURCES
Volume 286, Issue -, Pages 458-463Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2015.04.028
Keywords
Polyvinylpyrrolidone; Polyethersulfones; Polymer blending; High temperature proton exchange membrane; Fuel cell
Funding
- National High Technology Research and Development Program of China (863 program) [2013AA031902]
- National Natural Science Foundation of China [51422301, 21003007, U1137602]
- National Program on Key Basic Research Project (973 Program) [2011CB935700]
- National Science Foundation of Beijing [2132051]
- Beijing Higher Education Young Elite Teacher Project [29201493]
- Research Fund for the Doctoral Program of Higher Education of China [20131102110036]
- Fundamental Research Funds for the Central Universities
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A high-temperature proton exchange membrane, poly(ethersulphone)-poly(vinyl pyrrolidone) (PES-PVP) blend membrane is successfully prepared by scalable polymer blending method. The physical properties of blend membrane are characterized by DSC, TG and tensile strength test. The DSC and TG results indicate PES-PVP blend membranes possess excellent thermal stability. After phosphoric acid -(PA) doping treatment, the blend membrane shows enhanced proton conductivity. PA doping level and volume swelling ratio of the blend membrane are found to be positively related to the PVP content. A high proton conductivity of 0.21 S/cm is achieved at 180 degrees C for PA doped PES-PVP 80% with a PA doping level of 9.1. PEM fuel cell based on PA doped PES-PVP 80% membrane shows a high power density of 850 mW/cm(2) and outstanding stability at 180 degrees C without extra humidification. (C) 2015 Elsevier B.V. All rights reserved.
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