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- W2387806634 abstract "Polypyrrole modified Nafion membranes(PPy/Nafion)are prepared by FeCl3 oxidation methods.In addition,Co is chemically reduced on the cathode side of the modified membrane to prepare Co-PPy/Nafion membrane.The thermal stability,methanol penetrability and proton conductivity of Nafion membranes and the modified membranes are studied by TG,CV and AC impedance.Results show that PPy/Nafion and Co-PPy/Nafion have better thermal stability and low methanol permeation than Nafion membrance.Membrane-electrode-assemblies(MEAs)for a DMFC are fabricated by using Nafion membranes,PPy/Nafion and Co-PPy/Nafion respectively,with PtRu/C as an anode catalyst and Pt/C as a cathode catalyst.It is found that the modification of Nafion membrane with Co-polypyrrole can improve the performance of MEA to a great extent when the cell is operated at higher methanol concentrations and higher discharging current densities." @default.
- W2387806634 created "2016-06-24" @default.
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- W2387806634 date "2012-01-01" @default.
- W2387806634 modified "2023-09-28" @default.
- W2387806634 title "Studies on the performance of polypyrrole-Nafion composite membranes in direct methanol fuel cells" @default.
- W2387806634 hasPublicationYear "2012" @default.
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