Hybrid inorganic–organic proton exchange membranes containing 1H-1,2,3-triazole moieties

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• 作者：Shilpi Sanghi ; Mark Tuominen ; E. Bryan Coughlin
• 关键词：1 ; 2 ; 3-Triazole ; Sol– ; gel ; Inorganic– ; organic hybrids
• 刊名：Solid State Ionics
• 出版年：2010
• 出版时间：26 August 2010
• 年：2010
• 卷：181
• 期：25-26
• 页码：1183-1188
• 全文大小：764 K

文摘

Hybrid inorganic–organic polymer electrolyte membranes (PEM) were synthesized from a combination of 1H-1,2,3-triazole grafted alkoxy silanes, tetraethoxy silane (TEOS), polyethylene glycol (PEG) and trifluoroacetic acid (TFA) or phosphoric acid. The resulting hybrid inorganic–organic proton exchange membranes were self-supporting and thermally stable up to 180 °C. Evaluation of proton conductivity as a function of temperature indicates that by using sol–gel chemistry, it is possible to achieve mechanically robust membranes having proton conductivity comparable to uncrosslinked, liquid-like 1H-1,2,3-triazole functionalized polysiloxane homopolymer. Mechanical properties of these hybrid inorganic–organic membranes were investigated using nanoindentation.