Issue 23, 2012
From the journal:

Chemical Communications

A modified Nafion membrane with extremely low methanol permeability via surface coating of sulfonated organic silica†

Yuwei Zhang,a   Weiwei Cai,a   Fengzhan Si,a   Junjie Ge,a   Liang Liang,a   Changpeng Liua  and  Wei Xing*a  

* Corresponding authors

a State Key Laboratory of Electroanalytical Chemistry, Jilin Province Key Laboratory of Advanced Power Sources, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, China
E-mail: xingwei@ciac.jl.cn
Fax: +86-431-85685653
Tel: +86-431-85262223

Abstract

We developed a method to significantly decrease the methanol permeability of a Nafion membrane that does not require sacrificing its proton conductivity and mechanical stability. The Nafion membrane modified by the coating of a thin layer of sulfonated organic silica on the membrane surface exhibits significantly decreased methanol permeability—the permeability is decreased to an undetectable level—while retaining an acceptable ionic conductivity of 0.029 S cm−1.

Graphical abstract: A modified Nafion membrane with extremely low methanol permeability via surface coating of sulfonated organic silica

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Article information

DOI
https://doi.org/10.1039/C2CC17230E
Article type
Communication
Submitted
21 Nov 2011
Accepted
19 Jan 2012
First published
20 Jan 2012

Chem. Commun., 2012,48, 2870-2872

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A modified Nafion membrane with extremely low methanol permeability via surface coating of sulfonated organic silica

Y. Zhang, W. Cai, F. Si, J. Ge, L. Liang, C. Liu and W. Xing, Chem. Commun., 2012, 48, 2870 DOI: 10.1039/C2CC17230E

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