Preparation of nitrated sulfonated poly(ether ether ketone) membranes for reducing methanol permeability in direct methanol fuel cell applications

研究成果: Article同行評審

21 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 nitration. All sulfonation and nitration were achieved with an inexpensive and simple post substitute reaction. The nitrated SPEEKs have a high glass transition temperature and thermal decomposition temperature, and a lower water uptake than SPEEK, which provides sufficient mechanical strength without swelling in the direct methanol fuel cell (DMFC) application. The methanol permeability of nitrated SPEEKS is reduced to 1.76 × 10-7 cm2 s-1 for S53N22 and 1.86 × 10-7 cm2 s-1 for S63N17 with no loss of conductivity in the DMFC application, and a proton conductivity that reached 0.026 S cm-1. The nitrated SPEEK membranes satisfy the requirements of proton-exchange membranes for the DMFC.

原文English
頁(從 - 到)341-347
頁數7
期刊Journal of Power Sources
187
發行號2
DOIs
出版狀態Published - 2009 二月 15

All Science Journal Classification (ASJC) codes

  • 可再生能源、永續發展與環境
  • 能源工程與電力技術
  • 物理與理論化學
  • 電氣與電子工程

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