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

Yilmaztürk, Serpil; Deligöz, Hüseyin; YILMAZOĞLU, Mesut; Damyan, Hakan; Öksüzömer, Faruk; Koç, S. Naci; Durmuş, Ali; Gürkaynak, M. Ali

doi:10.1016/j.jpowsour.2009.08.044

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
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 1.0 M 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 78.3 mS cm^-1. Promisingly, it is found that the membrane selectivity values (Φ) of all multilayered composite membranes in H⁺ form are much higher than those of Na⁺ form and perfluorosulfonated ionomers reported in the literature. These encouraging results indicate that composite membranes having both superior proton conductivity and improved methanol barrier properties can be prepared from highly charged polyelectrolytes including salt for fuel cell applications. © 2009 Elsevier B.V. All rights reserved.

Anahtar Kelimeler

Layer-by-Layer (LbL) | Membrane | Self-assembly | Direct methanol fuel cell | Proton conductivity

Science Direct

BM Sürdürülebilir Kalkınma Amaçları

Atıf Sayıları
WoS	31
SCOPUS	34
Google Scholar	40

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

Dergi Adı	JOURNAL OF POWER SOURCES
Yayıncı	Elsevier B.V.
Açık Erişim	Hayır
ISSN	0378-7753
E-ISSN	1873-2755
CiteScore	14,9
SJR	1,784
SNIP	1,482

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

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