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Synthesis and Characterization of Layered Double Hydroxides/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-precipitation method and modified with perfluorooctane-sulfonic acid tetraethylammonium salt (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 characteristics of resulting materials. The organo-modified LDHs have been used in the formulation of Nafion® nanocomposites. Nanocomposite membranes were prepared by casting of LDH/PFOSA nanoparticles dispersed in Nafion® solution. Then, modified LDH/Nafion composite membranes were evaluated for water retention capability at ambient and elevated temperature.

Keywords

compositethermogravimetric analysis (TGA)nanostructure
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 977: Symposium FF – Processing-Structure-Mechanical Property Relations in Composite Materials , 2006 , 977-FF12-17
Copyright
Copyright © Materials Research Society 2007

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References

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