Journal
JOURNAL OF THE BRAZILIAN CHEMICAL SOCIETY
Volume 20, Issue 8, Pages 1523-1534Publisher
SOC BRASILEIRA QUIMICA
DOI: 10.1590/S0103-50532009000800020
Keywords
functionalized polypyrrole; electrodeposition; polymer-metal nanocomposite; nickel; electrocatalytic hydrogenation
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Funding
- CMEP [03 MDU 575]
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Nickel-polymer cornposite electrode materials have been synthesized using various strategies, all comprising the electrochemical reduction of nickel(II) cations or complexes, incorporated by either ion-exchange or complexation into various poly(pyrrole-carboxylate) thin films coated by oxidative electropolymerization onto carbon electrodes. The electrocatalytic activity and the stability of the different composites have been then evaluated in the course of the electrocatalytic hydrogenation of ketones and enones in aqueous electrolytes. The best results were obtained using nickel-polymer composites synthesized by electroreduction of nickel(II) ions complexed into polycarboxylate films, which are characterized by a high catalytic activity and a good operational stability.
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