Journal
SOLID STATE IONICS
Volume 181, Issue 25-26, Pages 1183-1188Publisher
ELSEVIER
DOI: 10.1016/j.ssi.2010.06.051
Keywords
1,2,3-Triazole; Sol-gel; Inorganic-organic hybrids
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Funding
- NSF Center for Chemical Innovation at UMass Amherst [CHE-0739227]
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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 degrees 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. (C) 2010 Elsevier B.V. All rights reserved.
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