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Constructed poly amide blend and Nafion with non- and surface coated silicotungstic acid has been made into composite membranes for direct methanol fuel cells. The Nafion/surface coated SiWA composite membranes have a high methanol feed percentage and can be used in DMFCs with a high methanol feed concentration. Surface coated SiWA particles can keep the SiWA particles from "washing out" with water from the feed and reduce methanol crossover.
Source link: https://doi.org/10.1149/1.3643485
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