Acid-base blend membranes based on Nafion®/aminated SPEEK for reducing methanol permeability

Jie Cheng Tsai, Chien-Kung Lin

研究成果: Article同行評審

16 引文 斯高帕斯(Scopus)

摘要

Sulfonated poly(ether ether ketone)s (SPEEKs) were further substituted on the polymer main chain by amino groups to form an acid-basic polymer, and blended with acid polymeric Nafion® to create composite membranes. The acid-base blend membranes containing ionic crosslinking exhibited lower water uptake than recast Nafion®, and the methanol permeability was reduced significantly for various contents of aminated SPEEK, with a maximum proton conductivity of ~0.063Scm-1 at 30°C. The single-cell performance of the blend membranes with various contents of aminated SPEEK showed 20-26mWcm-2 for S45A47 at 80°C. Both the power density and open circuit voltage were higher than those of Nafion® 115 and recast Nafion®. The acid-base blend membranes satisfy the requirements for proton exchange membranes in the context of direct methanol fuel cell (DMFC) applications.

原文English
頁(從 - 到)281-285
頁數5
期刊Journal of the Taiwan Institute of Chemical Engineers
42
發行號2
DOIs
出版狀態Published - 2011 三月 1

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Chemistry(all)

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