Improved performance of nafion membranes by blending ultra-high molecular weight polyvinylidene fluoride
نویسندگان
چکیده
Abstract Proton exchange membrane (PEM) is developing towards thin thickness and high mechanical strength for extraordinary performance proton fuel cells (PEMFCs). However, the commercial such as Nafion can hardly satisfy practical application of PEMFCs because gas crossover low when less than 20 μm. Here, a reinforced composite (denoted P110-PFSA) was synthesized by blending poly(vinylidene fluoride)(PVDF) featured with molecular weight M w = 1100000 g mol -1 into perfluorosulfonic acid resin (PFSA). The P110-PFSA 15 μm exhibits tensile over 33 MPa PVDF forms higher density hydrogen bonds PFSA, resulting in reinforcement bonding between PFSA. H 2 /O cell shows more 1170 mW cm -2 fed at 70 °C 100% RH much better that 211. Direct methanol power densities blent PEM are 92, 61, 50, 28 2, 6, 10,16 solution respectively anode.
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ژورنال
عنوان ژورنال: Journal of physics
سال: 2022
ISSN: ['0022-3700', '1747-3721', '0368-3508', '1747-3713']
DOI: https://doi.org/10.1088/1742-6596/2387/1/012016