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Preparation and Characterization of Polyaniline-Palladium Composite Films

Published online by Cambridge University Press:  16 February 2011

Hongshi Li ,
D. R. Baer ,
M. H. Engelhard ,
J. Janata  and
M. Josowicz
Hongshi Li
Affiliation:
Environmental Molecular Sciences Laboratory Pacific Northwest Laboratory Richland, Washington 99352, U.S.A.
D. R. Baer
Affiliation:
Environmental Molecular Sciences Laboratory Pacific Northwest Laboratory Richland, Washington 99352, U.S.A.
M. H. Engelhard
Affiliation:
Environmental Molecular Sciences Laboratory Pacific Northwest Laboratory Richland, Washington 99352, U.S.A.
J. Janata
Affiliation:
Environmental Molecular Sciences Laboratory Pacific Northwest Laboratory Richland, Washington 99352, U.S.A.
M. Josowicz
Affiliation:
Environmental Molecular Sciences Laboratory Pacific Northwest Laboratory Richland, Washington 99352, U.S.A.
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Abstract

Electrosynthesized polyaniline (PANi) can be chemically functionalized by incorporation of palladium clusters. The functionalization of electrochemically, freshly prepared and dried PANi film occurs spontaneously during the relaxation process. This process is carried out in sulfuric acid containning palladium salt. The material properties of the new composite PANi-Pd film were investigated by applying electrochemical, UV-visible spectroscopic and surface microscopy techniques. The PANi-Pd composite materials behaved electrochemically different than PANi film alone or Pd film deposited electrochemically. This finding is particularly important for developing layers for chemical sensors, electrocatalysis or supercapacitors applications.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 369: Symposium U – Solid State Ionics IV , 1994 , 581
Copyright
Copyright © Materials Research Society 1995

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