Particulate Filled Polymer Electrolyte Membrane for Fuel Cell Applications
Soma Banerjee and Kamal K. KarAffiliation:
Advanced Nanoengineering Materials Laboratory, Materials Science Programme; Kanpur-208016, UP, India
AbstractThe state-of-the-art Nafion® membrane suffers from several shortcomings such as high cost, water dependent conductivity and loss of efficiency at elevated temperature. In contrast particulate filled Nafion® and other nanocomposite polymer electrolyte membranes (PEMs) offer combination of several attractive properties such as high water retention capacity, dimensional, thermal and mechanical stability, excellent conductivity, durability and resistance to fuel cross-over. In this study the research papers and patents related to the chemical modification of the fillers, different fabrication methods and functional properties of the several particulate filled nanocomposite membranes are discussed concisely. The mechanism and the role of different particulate fillers in achieving the superior performance of the membrane have been demonstrated scientifically. Solution casting, sol-gel, in situ impregnation, self-assembly are the common approaches employed for the synthesis of nanocomposite PEMs. The functional properties of silica, titania, zirconia, clay, and zeolite hygroscopic fillers filled PEMs in particular are reviewed in details with respect to the fuel cell membrane application.
Fuel cell membrane, ionic conductivity, nanocomposite, particulate filler, polymer electrolyte membrane, water retention
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