Studies on Preparation and Properties of SiO₂/PVA-PAMPS Composite Membrane

Abstract:

In situ namometer silicon bioxide modification of Poly-2-acrylamido-methyl propane sulfonic acid (PAMPS)-composite-polyvinyl alcohol (PVA) membranes were prepared by sol-gel for DMFC. The mechanical properties and thermal stability of the membranes were measured, at the same time, the influences of the content of the AMPS on the proton conductivity and methanol permeability of the membranes were studied by the impedance analyzer and gas chromatography instrument. The results showed that AMPS is easily blended into PVA modified by SiCl₄ and mechanical properties and thermal stability were improved, with increasing of the content of AMPS, the proton conductivity of SiO2/PVA-PAMPS membranes was increased, correspondingly, methanol permeability became large gradually.

• Periodical: Advanced Materials Research (Volumes 512-515)
• Pages: 2007-2010
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.512-515.2007
• Online since: May 2012
• Authors: Xiao Xia Chen, Gui Bao Guo
• Keywords: AMPS, Proton Exchange Membrane Fuel Cell, PVA, SiCl₄

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