Bae, B Chun, BH Ha, HY Oh, IH Kim, D 2024-01-21T10:33:03Z 2024-01-21T10:33:03Z 2021-09-01 2002-06-15 0376-7388 https://pubs.kist.re.kr/handle/201004/139435 Methanol impermeable thin polymer electrolyte membrane,; were prepared by impregnating Nafion((R)) solution in porous polypropylene (PP) membranes for direct methanol fuel cell application. In order to enhance the impregnation amount and stability of Nafion((R)) molecules, not only the solvent in commercial Nafion((R)) solution was exchanged with ethanol, but the surface and pores of PP membranes ere treated with Freon-116 plasma gas. The proton conductivities of the prepared Nafion((R))/PP composite membranes were about 10 times lower, but the resistance to methanol permeability was about 10 times higher than those of commercial Nafion((R)) membrane,. The impregnation features of Nafion((R)) molecules in the plasma treated and non-treated membrane pores were compared by examining the cross-sectional morphologies of membranes. (C) 2002 Elsevier Science B.V. All rights reserved. English ELSEVIER SCIENCE BV PROTON-EXCHANGE MEMBRANES IONOMERIC MEMBRANES METHANOL CROSSOVER FUEL-CELLS TRANSPORT Preparation and characterization of plasma treated PP composite electrolyte membranes Article 10.1016/S0376-7388(01)00716-5 1 JOURNAL OF MEMBRANE SCIENCE, v.202, no.1-2, pp.245 - 252 JOURNAL OF MEMBRANE SCIENCE 202 1-2 245 252 scie scopus 000175657900020 2-s2.0-0037097125 Engineering, Chemical Polymer Science Engineering Polymer Science Article PROTON-EXCHANGE MEMBRANES IONOMERIC MEMBRANES METHANOL CROSSOVER FUEL-CELLS TRANSPORT polymer electrolyte membranes direct methanol fuel cell plasma treatment ion conductivity methanol permeability