Preparation and characterization of polyaniline-palladium composite films
- Pacific Northwest Lab., Richland, WA (United States). Environmental Molecular Sciences Lab.
Palladium is a preeminent material for the preparation of sensors for hydrogen and hydrogen-evolving compounds. Conducting polyaniline can be chemically or electrochemically functionalized by the incorporation of palladium clusters. Different interfaces in a three-dimensional matrix for hydrogen adsorption, desorption, and evolution were synthesized and characterized. Dispersions of palladium clusters in the polymer film were formed by various preparation routes, which can be classified as one or two-step processes. In the one-step process, the composite material was obtained during the electrosynthesis of polyaniline film. In the two-step processes, Pd aggregated into the polyaniline modified electrode. Electrochemical examination, x-ray photoelectron spectroscopy, and Auger electron spectroscopy have been employed to characterize the composite materials in view of the hydrogen sorption and evolution as well as the binding energy stale and the spatial distribution of the palladium clusters in polyaniline film.
- DOE Contract Number:
- AC06-76RL01830
- OSTI ID:
- 40318
- Journal Information:
- Journal of the Electrochemical Society, Journal Name: Journal of the Electrochemical Society Journal Issue: 3 Vol. 142; ISSN 0013-4651; ISSN JESOAN
- Country of Publication:
- United States
- Language:
- English
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