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Electrochemical Characterization of Phosphosilicate-modified Nafion Membranes

Published online by Cambridge University Press:  01 February 2011

L. C. Klein  and
M. Aparicio
L. C. Klein
Affiliation:
Department of Ceramic and Materials Engineering, Rutgers, The State University of New Jersey, 607 Taylor Rd., Piscataway, NJ 08854–8065
M. Aparicio
Affiliation:
CSIC, Instituto de Ceramic y Vidrio, Campus de la Universidad Autónoma de Madrid, Camino de Valdelatas, s/n, 28049 Cantoblanco (Madrid), SPAIN
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Abstract

Hybrid membranes containing Nafion and phosphosilicate gels were prepared using infiltration and recasting methods. The hybrid membranes were investigated using complex impedance spectroscopy. Conductivities were determined as a function of relative humidity. Infiltrated membranes, which contained gel in more or less discrete particles, were compared with recast membranes where the gel was more evenly distributed. Both of the modified membranes were compared to unmodified Nafion. The impedance spectra were analyzed to distinguish electrode interface effects from bulk transport phenomena.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 847: Symposium EE – Organic/Inorganic Hybrid Materials , 2004 , EE12.5
Copyright
Copyright © Materials Research Society 2005

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References

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