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Electrochemical deposition of hierarchical micro/nanostructures of copper hydroxysulfates on polypyrrole-polystyrene sulfonate films

Andreoli, Enrico and Rooney, Denise A. and Redington, Wynette and Gunning, Robert and Breslin, Carmel B. (2011) Electrochemical deposition of hierarchical micro/nanostructures of copper hydroxysulfates on polypyrrole-polystyrene sulfonate films. Journal of Physical Chemistry C (115). pp. 8725-8734. ISSN 1932-7447

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Abstract

Copper-based hierarchical micro/nanostructures were prepared using a novel electrochemical route on polypyrrole -polystyrene sulfonate (PPy-PSS) thin films. The resulting structures are composed of copper hydroxysulfates, as confirmed by the electrochemical, spectroscopic, and X-ray diffraction characterization. The electrochemistry of the film is a key factor in the overall deposition of the micro/nanostructures. The PPy-PSS films capture cations from the copper sulfate electrolyte solution and facilitate the reduction of dissolved oxygen to hydroxide ions. The system then acts like a nanoreactor as the Cu2+ and OH- ions are concentrated on the polymer surface, which in the presence of the SO42- ions from the electrolyte solution results in the electrocrystallization of the copper hydroxysulfates hierarchical structures.

Item Type: Article
Additional Information: We thank Dr. Mircea Mondreanu, at the Tyndall National Institute, University College Cork, for the ATR-IR analyses, and Dr. Fathima Laffir and Dr. Serguei Belochapkine, at the Materials and Surface Science Institute, University of Limerick, for the XPS analyses.This work was supported by the Environmental Protection Agency Ireland as part of the Science, Technology, Research and Innovation for the Environment Programme financed by the Irish Government. Additional funding was provided by the Science Foundation Ireland through the National Access Programme of the Tyndall National Institute, University College Cork.
Keywords: Electrochemical Deposition; Hierarchical Microstructures; Nanostructures; Copper Hydroxysulfates; Polypyrrole; Polystyrene Sulfonate Films;
Subjects: Science & Engineering > Chemistry
Item ID: 2591
Identification Number: dx.doi.org/10.1021/jp200465n
Depositing User: Dr. Carmel Breslin
Date Deposited: 30 Jun 2011 10:45
Journal or Publication Title: Journal of Physical Chemistry C
Publisher: American Chemical Society
Refereed: Yes
URI:

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