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Synthesis and Characterization of Layered DoubleHydroxides/Nafion Composites for Fuel Cell Application

Published online by Cambridge University Press:  26 February 2011

Dharmaraj Raghavan ,
Bolnale Abayomi ,
Miriam Harewood ,
Sheriff Abudu ,
Elizabeth Williams ,
Raymond Butcher  and
Dharmaraj Raghavan
Dharmaraj Raghavan
Affiliation:
ielkina@yahoo.com, Howard University, Department of Chemistry, 525 College Street, Washington, DC, 20059, United States
Bolnale Abayomi
Affiliation:
draghavan@howard.edu, Howard University, Department of Chemistry, 525 College Street, Washington, DC, 20059, United States
Miriam Harewood
Affiliation:
draghavan@howard.edu, Howard University, Department of Chemistry, 525 College Street, Washington,, DC, 20059, United States
Sheriff Abudu
Affiliation:
draghavan@howard.edu, Howard University, Department of Chemistry, 525 College Street, Washington, DC, 20059, United States
Elizabeth Williams
Affiliation:
EKWilliams417@aol.com, Howard University, Department of Chemistry, 525 College Street, Washington, DC, 20059, United States
Raymond Butcher
Affiliation:
rbutcher@Howard.edu, Howard University, Department of Chemistry, 525 College Street, Washington, DC, 20059, United States
Dharmaraj Raghavan
Affiliation:
draghavan@howard.edu, Howard University, Department of Chemistry, 525 College Street, Washington, DC, 20059, United States
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Abstract

In this study, magnesium-aluminum (Mg-Al) based LDHs with different Mg2+/Al3+ ratios were prepared by co-precipitationmethod and modified with perfluorooctane-sulfonic acid tetraethylammoniumsalt (PFOSA). X-Ray Diffraction (XRD), Atomic Force Microscopy (AFM),Fourier Transfer Infrared spectroscopy (FTIR) and Thermogravimetric Analysis(TGA) were carried out to obtain the structural and thermal characteristicsof resulting materials. The organo-modified LDHs have been used in theformulation of Nafion® nanocomposites. Nanocomposite membranes were preparedby casting of LDH/PFOSA nanoparticles dispersed in Nafion® solution. Then,modified LDH/Nafion composite membranes were evaluated for water retentioncapability at ambient and elevated temperature.

Keywords

compositethermogravimetric analysis (TGA)nanostructure

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References

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