Hybird membrane with high proton conductivity and selectivity based on SPEEK for direct methanol fuel cells

Dan Xu, Yang Wang, Yang Zhang, Gang Zhang, Ke Shao, Shi Wei Li, Hui Na

Research output: Contribution to journalArticle

8 Scopus citations

Abstract

Composite membranes based on sulfonated silica/sulfonated poly(ether ether ketone)(SPEEK) were prepared by means of sol-gel method so as to gain a high conductivity and reasonable methanol permeability. The sulfonated silica is generated in situ via the hydrolysis of sulfonated 3-anminopropyl triethoxysilane(KH550) synthesized newly from 3-aminopropyl triethoxysilane and 1,4-butane sultone. The membrane with a silica mass fraction of 5% exhibits a conductivity of 0.187 S/cm at 80 °C and a methanol coefficient with 9.72×10-7 cm2/s. The composite membranes show improved condutive ability and better selectivity that can be promisingly used in direct methanol fuel cell.

Original languageEnglish (US)
Pages (from-to)1031-1034
Number of pages4
JournalChemical Research in Chinese Universities
Volume26
Issue number6
StatePublished - Dec 1 2010

All Science Journal Classification (ASJC) codes

  • Chemistry(all)

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    Xu, D., Wang, Y., Zhang, Y., Zhang, G., Shao, K., Li, S. W., & Na, H. (2010). Hybird membrane with high proton conductivity and selectivity based on SPEEK for direct methanol fuel cells. Chemical Research in Chinese Universities, 26(6), 1031-1034.