Impact of acid containing montmorillonite on the properties of Nafion® membranes

[en] The counter-ions of montmorillonite have been exchanged for ammonium cations containing either a sulfonic acid or a carboxylic acid in order to improve the performances of sulfonated membranes in direct methanol fuel cell. These layered silicates have been dispersed within Nafion® by solution mixing. Comparison with conventional organo-modified montmorillonite (Cloisite 30B) shows that the incorporation of carboxylic acid in the clay galleries improves the filler dispersion and, consequently, the methanol barrier properties. Moreover, the negative impact of Cloisite 30B on the ionic conductivity is restricted.

Research Center/Unit :

Center for Education and Research on Macromolecules (CERM)

Disciplines :

Chemistry
Materials science & engineering

Author, co-author :

Thomassin, Jean-Michel ; Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)

Pagnoulle, Christophe; Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)

Caldarella, Giuseppe ; Université de Liège - ULiège > Department of Applied Chemistry > Laboratory of Industrial Chemistry

Germain, Albert ; Université de Liège - ULiège > Department of Applied Chemistry > Laboratory of Industrial Chemistry

Jérôme, Robert ; Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)

Language :

English

Title :

Impact of acid containing montmorillonite on the properties of Nafion® membranes

Publication date :

28 November 2005

Journal title :

Polymer

ISSN :

0032-3861

eISSN :

1873-2291

Publisher :

Elsevier Sci Ltd, Oxford, United Kingdom

Volume :

Issue :

Pages :

11389-11395

Peer reviewed :

Peer Reviewed verified by ORBi

Additional URL :

http://www.sciencedirect.com/science?_ob=MImg&_imagekey=B6TXW-4HCDJWJ-4-W&_cdi=5601&_user=532038&_orig=browse&_coverDate=11%2F28%2F2005&_sk=999539974&view=c&wchp=dGLzVtz-zSkzV&md5=f267c74591b03a279a306c5a92a32b82&ie=/sdarticle.pdf
http://www.elsevier.com/wps/find/journaldescription.cws_home/30466/description#description

Funders :

Région wallonne
BELSPO - Service Public Fédéral de Programmation Politique scientifique

Funding text :

The Région Wallonne in the frame of the NANOCELL program

Commentary :

The authors acknowledge Polymer (Elsevier) for allowing them to archive this paper.

Available on ORBi :

since 16 March 2009

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