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Preparation and characterization of self-crosslinked organic/inorganic proton exchange membranes
- Source :
-
Journal of Power Sources . Jul2010, Vol. 195 Issue 13, p3990-3995. 6p. - Publication Year :
- 2010
-
Abstract
- Abstract: A series of silicon-containing sulfonated polystyrene/acrylate (Si-sPS/A) nanoparticles are successfully synthesized via simple emulsion polymerization method. The Si-sPS/A latexes show good film-forming capability and the self-crosslinked organic/inorganic proton exchange membranes are prepared by pouring the Si-sPS/A nanoparticle latexes into glass plates and drying at 60°C for 10h and 120°C for 2h. The potential of the membranes in direct methanol fuel cells (DMFCs) is characterized preliminarily by studying their thermal stability, ion-exchange capacity, water uptake, methanol diffusion coefficient, proton conductivity and selectivity (proton conductivity/methanol diffusion coefficient). The results indicate that these membranes possess excellent thermal stability and methanol barrier due to the existence of self-crosslinked silica network. In addition, the proton conductivity of the membranes is in the range of 10−3–10−2 Scm−1 and all the membranes show much higher selectivity in comparison with Nafion® 117. These results suggest that the self-crosslinked organic/inorganic proton exchange membranes are particularly promising in DMFC applications. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 03787753
- Volume :
- 195
- Issue :
- 13
- Database :
- Academic Search Index
- Journal :
- Journal of Power Sources
- Publication Type :
- Academic Journal
- Accession number :
- 48725551
- Full Text :
- https://doi.org/10.1016/j.jpowsour.2009.12.125