Preparation and Characterization of Hybrid Chitosan/PEO–Silica Membrane Doped with Phosphotungstic Acid for PEM Fuel Cell Application

In an effort to improve the proton conductivity of the s-Chitosan/PEO/s-SiO2 membranes, a heteropoly acid such as phosphortungstic acid/Sulfosuccinic acid as a cross-linker is incorporated in the polymer matrix. The membranes show that s-SiO2 nano particles are dispersed within the membranes uniform...

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Bibliographic Details
Published in:Polymer-plastics technology and engineering 2019-01, Vol.58 (1), p.14-30
Main Authors: Jesuraj, Kalaiselvimary, Manimuthu, Ramesh Prabhu
Format: Article
Language:English
Subjects:
Chitosan
Proton exchange membrane fuel cells
Silicon dioxide
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Summary:In an effort to improve the proton conductivity of the s-Chitosan/PEO/s-SiO2 membranes, a heteropoly acid such as phosphortungstic acid/Sulfosuccinic acid as a cross-linker is incorporated in the polymer matrix. The membranes show that s-SiO2 nano particles are dispersed within the membranes uniformly and indicating the good organic compatibility of s-SiO2 particle with PWA/SSA. The conductivity is found to increase in the order of 10−1 Scm−1 at 303K for increasing the PWA acid dopant. The physicochemical properties of the films are successively characterized by water uptake, IEC and mechanical stability. The results suggest that s-CS/PEO/s-SiO2/PWA composite membranes suitable for fuel cell.
ISSN:2574-0881
0360-2559
2574-089X
1525-6111
DOI:10.1080/03602559.2018.1455862