Electrochemical Deposition of Hierarchical Micro/Nanostructures of Copper Hydroxysulfates on Polypyrrole鈭扨olystyrene Sulfonate Films

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• 作者：Enrico Andreoli ; Denise A. Rooney ; Wynette Redington ; Robert Gunning ; Carmel B. Breslin
• 刊名：Journal of Physical Chemistry C
• 出版年：2011
• 出版时间：May 5, 2011
• 年：2011
• 卷：115
• 期：17
• 页码：8725-8734
• 全文大小：1117K
• 年卷期：v.115,no.17(May 5, 2011)
• ISSN：1932-7455

文摘

Copper-based hierarchical micro/nanostructures were prepared using a novel electrochemical route on polypyrrole鈭抪olystyrene sulfonate (PPy鈭扨SS) 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鈭扨SS 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 Cup>2+p> and OHp>鈭?/sup> ions are concentrated on the polymer surface, which in the presence of the SO₄p>2鈭?/sup> ions from the electrolyte solution results in the electrocrystallization of the copper hydroxysulfates hierarchical structures.