Self-assembly of highly charged polyelectrolyte complexes with superior proton conductivity and methanol barrier properties for fuel cells

Yilmaztuerk S., Deligoez H., Yilmazoglu M., Damyan H., Oeksuezoemer F., Koc S. N., ...Daha Fazla

JOURNAL OF POWER SOURCES, cilt.195, sa.3, ss.703-709, 2010 (SCI-Expanded, Scopus) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 195 Sayı: 3
  • Basım Tarihi: 2010
  • Doi Numarası: 10.1016/j.jpowsour.2009.08.044
  • Dergi Adı: JOURNAL OF POWER SOURCES
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.703-709
  • Anahtar Kelimeler: Layer-by-Layer (LbL), Membrane, Self-assembly, Direct methanol fuel cell, Proton conductivity, POLYMER ELECTROLYTE MEMBRANE, PERFLUORINATED IONOMER MEMBRANES, EXCHANGE MEMBRANES, NAFION MEMBRANES, WATER TRANSPORT, ELECTROCHEMICAL OXIDATION, COMPOSITE MEMBRANES, ADSORBED LAYERS, CROSSOVER, METAL
  • İstanbul Üniversitesi-Cerrahpaşa Adresli: Hayır

Özet

The paper is concerned with the formation of Layer-by-Layer (LbL) self-assembly of highly charged polyvinyl sulfate potassium salt (PVS) and polyallylamine hydrochloride (PAH) on Nafion membrane to obtain the multilayered composite membranes with both high proton conductivity and methanol blocking properties. Also, the influences of the salt addition to the polyelectrolyte solutions on membrane selectivity (proton conductivity/methanol permeability) are discussed in terms of controlled layer thickness and charge density.