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Noncovalent Functionalization of Single Walled Carbon Nanotubes Using Alternate Layer-By-Layer Polyelectrolyte Adsorption for Nanocomposite Fuel Cell Electrodes

Published online by Cambridge University Press:  01 February 2011

R. B. Dhullipudi ,
T. A. Dobbins ,
S.R. Adiddela ,
Z. Zheng ,
R. A. Gunasekaran ,
Y. M. Lvov  and
R. Tittsworth
R. B. Dhullipudi
Affiliation:
Louisiana Tech University, Institute for Micromanufacturing, P.O. Box 10137 Ruston, LA 71272
T. A. Dobbins
Affiliation:
Louisiana Tech University, Institute for Micromanufacturing, P.O. Box 10137 Ruston, LA 71272
S.R. Adiddela
Affiliation:
Louisiana Tech University, Institute for Micromanufacturing, P.O. Box 10137 Ruston, LA 71272
Z. Zheng
Affiliation:
Louisiana Tech University, Institute for Micromanufacturing, P.O. Box 10137 Ruston, LA 71272
R. A. Gunasekaran
Affiliation:
Louisiana Tech University, Institute for Micromanufacturing, P.O. Box 10137 Ruston, LA 71272
Y. M. Lvov
Affiliation:
Louisiana Tech University, Institute for Micromanufacturing, P.O. Box 10137 Ruston, LA 71272
R. Tittsworth
Affiliation:
Louisiana State University, CAMD, 6980 Jefferson Hwy. Baton Rouge, LA 70806, U.S.A.
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Abstract

Electrodes which are resistant to chemical poisoning by CO, S, and other fuel impurities are needed to replace Pt in proton exchange membrane (PEM) fuel cells. We have designed composite electrodes comprised of single walled carbon nanotubes (CNTs) within a conducting polymer matrix. A method for solubilizing single-walled carbon nanotubes (CNTs) in aqueous media using polyelectrolyte layer-by-layer (LbL) nanoassembly of polystyrene sulfonate (PSS) and polyallylamine (PAH) at the CNT surface is elucidated. Once soluble, the CNTs were assembled onto planar substrates using alternate LbL nanoassembly to form nanocomposite films. These films will later be tested for their potential as alternative anodes in proton exchange membrane fuel cells.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 837: Symposium N – Materials for Hydrogen Storage – 2004 , 2004 , N3.27
Copyright
Copyright © Materials Research Society 2005

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References

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