High proton-conducting Nafion®/-SO3H functionalized mesoporous silica composite membranes

Yu Feng Lin, Chuan Yu Yen, Chen Chi M. Ma, Shu Hang Liao, Chia Hsun Lee, Yi Hsiu Hsiao, Hong Ping Lin

研究成果: Article同行評審

107 引文 斯高帕斯(Scopus)


A novel organic-inorganic mesoporous silica (L64 copolymer-templated mesoporous SiO2), functionalized with perfluoroalkylsulfonic acid groups analogous to that of Nafion®, was prepared. A condensation reaction between the surface silanol groups of the mesoporous silicas and 1,2,2-trifluoro-2-hydroxy-1-trifluoromethylethane sulfonic acid Beta-sultone was conducted. High proton-conducting Nafion®/functionalized mesoporous silica composite membranes were prepared via homogeneous dispersive mixing and the solvent casting method. In this investigation, the proton conductivity (σ) of the composite membrane is increased from 0.10 to 0.12 (S cm-1) as the modified mesoporous silica content is increased from 0 to 3 wt%. The methanol permeability of the composite membrane declined as the sulfonic mesoporous silica content increased. The methanol permeability of the composite membrane that contained 3 wt% M-SiO2-SO3H was 4.5 × 10-6 cm2 S-1-30% lower than that of pristine Nafion®. Results of this study demonstrate a significant improvement in the performance of DMFCs.

頁(從 - 到)388-395
期刊Journal of Power Sources
出版狀態Published - 2007 九月 27

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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