Self assembly of highly charged polyelectrolyte complexes with superior proton conductivity and methanol barrier properties for fuel cells
Yazarlar (8)
Serpil Yilmaztürk
Istanbul Üniversitesi, Türkiye
Hüseyin Deligöz Istanbul Üniversitesi, Türkiye
Doç. Dr. Mesut YILMAZOĞLU Istanbul Üniversitesi, Türkiye
Hakan Damyan
Istanbul Üniversitesi, Türkiye
Faruk Öksüzömer
Istanbul Üniversitesi, Türkiye
S. Naci Koç
Istanbul Üniversitesi, Türkiye
Ali Durmuş Istanbul Üniversitesi, Türkiye
M. Ali Gürkaynak
Istanbul Üniversitesi, Türkiye
Makale Türü Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
Dergi Adı Journal of Power Sources (Q1)
Dergi ISSN 0378-7753 Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler SCI-Expanded
Makale Dili İngilizce Basım Tarihi 02-2010
Kabul Tarihi Yayınlanma Tarihi 01-02-2010
Cilt / Sayı / Sayfa 195 / 3 / 703–709 DOI 10.1016/j.jpowsour.2009.08.044
Makale Linki http://linkinghub.elsevier.com/retrieve/pii/S0378775309014311
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. The deposition of the self-assembly of PAH/PVS is confirmed by SEM analysis and it is observed that the polyelectrolyte layers growth on each side of Nafion membrane regularly. (PAH/PVS)10–Na+ and (PAH/PVS)10–H+ with 1.0M NaCl provide 55.1 and 43.0% reduction in lower methanol permittivity in comparison to pristine Nafion, respectively, while the proton conductivities are 12.4 and …
Anahtar Kelimeler
Direct methanol fuel cell | Layer-by-Layer (LbL) | Membrane | Proton conductivity | Self-assembly