The effect of self assembled multilayer formation via LbL technique on thermomechanical and transport properties of Nafion 112 based composite membranes for PEM fuel cells
     
Yazarlar (4)
Hüseyin Deligöz Istanbul Üniversitesi, Türkiye
Serpil Yilmaztürk Istanbul Üniversitesi, Türkiye
Doç. Dr. Mesut YILMAZOĞLU Istanbul Üniversitesi, Türkiye
Hakan Damyan Istanbul Üniversitesi, Türkiye
Makale Türü Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
Dergi Adı Journal of Membrane Science (Q1)
Dergi ISSN 0376-7388 Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler SCI-Expanded
Makale Dili İngilizce Basım Tarihi 04-2010
Cilt / Sayı / Sayfa 351 / 1 / 131–140 DOI 10.1016/j.memsci.2010.01.041
Makale Linki http://linkinghub.elsevier.com/retrieve/pii/S0376738810000645
Özet
Highly proton conductive and mechanically stable Nafion®112 based composite membranes with suppressed methanol permeability were prepared via Layer-by-Layer (LbL) technique for fuel cell applications. It was observed from UV-vis results that the polyelectrolyte layers growth on Nafion membrane surface regularly. (PAH/PSS)20-H+ with 0.01 M NaCl exhibited 39.9% reduction in methanol permittivity and nearly 2 times higher proton conductivity (0.152 S cm-1) than that of untreated Nafion®112. Promisingly, it was found that the membrane selectivity (Φ) values of all multilayered composite membranes in proton form prepared from polyelectrolytes comprising NaCl were higher than that of both untreated and chemically treated Nafion®112. Furthermore, the mechanical and thermal properties of the composite membrane obtained from polyelectrolytes free salt were enhanced due to the interaction between the polar phase of Nafion and anionic/cationic charges of polyions. © 2010 Elsevier B.V. All rights reserved.
Anahtar Kelimeler
Fuel cell | Layer-by-Layer (LbL) | Membranes | Self-assembly | Proton conductivity