Advanced Mesostructured Hybrid Silica−Nafion Membranes for High-Performance PEM Fuel Cell
By F. Pereira, K. Vallé, P. Belleville, A. Morin, S. Lambert, C. Sanchez. 2008
281 citations recorded by the source corpus.
Organic−inorganic hybrid membranes of Nafion and mesoporous silica containing sulfonic acid groups were synthesized using the sol−gel process with the goal of increasing the proton conductivity and water retention at higher temperatures and lowering relative humidities as well as improving the dimensional stability. These hybrid membranes were prepared via in situ co-condensation of tetraethoxysilane and chlorosulfonylphenethylsilane via self-assembly route using organic surfactants as templates for the tuning of the architecture of the silica or hybrid organosilica components. In this paper, we describe the elaboration and characterization of new hybrid membranes all the way from the precursor solution to the evaluation of the fuel cell performances. These hybrid materials were extensively characterized with the determination of their physicochemical and electrochemical properties. The membrane containing functionalized silica showed a higher ionic exchange capacity and greater water management than stan...
Subfields: Electrical and Electronic Engineering, Materials Chemistry, Renewable Energy, Sustainability and the Environment
View Paper: https://www.semanticscholar.org/paper/708479f6b78d71498a59782f4cf3e6ceeee6206d
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In Electrical and Electronic Engineering
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Citations in the corpus
- A Review of Water Management in Polymer Electrolyte Membrane Fuel Cells (2009, background): “These strategies involve organic-inorganic hybrid membranes containing functionalized silica [217-219], metal oxide-Nafion composite membranes [220], self-conducting benzimidazole oligomers [221], etc.”