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Polypyrrole Coated Cellulosic Substrate Modified By Copper Oxide As Electrode For Nitrate Electroreduction

Author

Listed:
  • A. HAMAM

    (Laboratoire d'Electrochimie, Corrosion et de Valorisation Energétique (LECVE), Faculté de Technologie, Université de Bejaia, 06000 Bejaia, Algeria;
    Welding and Non Destructive Testing Research Center CSC, Siderurgy and Metallurgy Research Unit URASM-CSC, B.P. 196, 23000 Annaba, Algeria)

  • D. OUKIL

    (Laboratoire d'Electrochimie, Corrosion et de Valorisation Energétique (LECVE), Faculté de Technologie, Université de Bejaia, 06000 Bejaia, Algeria)

  • A. DIB

    (Laboratoire d'Electrochimie, Corrosion et de Valorisation Energétique (LECVE), Faculté de Technologie, Université de Bejaia, 06000 Bejaia, Algeria)

  • H. HAMMACHE

    (Laboratoire d'Electrochimie, Corrosion et de Valorisation Energétique (LECVE), Faculté de Technologie, Université de Bejaia, 06000 Bejaia, Algeria)

  • L. MAKHLOUFI

    (Laboratoire d'Electrochimie, Corrosion et de Valorisation Energétique (LECVE), Faculté de Technologie, Université de Bejaia, 06000 Bejaia, Algeria;)

  • B. SAIDANI

    (Laboratoire d'Electrochimie, Corrosion et de Valorisation Energétique (LECVE), Faculté de Technologie, Université de Bejaia, 06000 Bejaia, Algeria)

Abstract

The aim of this work is to synthesize polypyrrole (PPy) films on nonconducting cellulosic substrate and modified by copper oxide particles for use in the nitrate electroreduction process. Firstly, the chemical polymerization of polypyrrole onto cellulosic substrate is conducted by usingFeCl3as an oxidant and pyrrole as monomer. The thickness and topography of the different PPy films obtained were estimated using a profilometer apparatus. The electrochemical reactivity of the obtained electrodes was tested by voltamperometry technique and electrochemical impedance spectroscopy. Secondly, the modification of the PPy film surface by incorporation of copper oxide particles is conducted by applying a galvanostatic procedure from aCuCl2solution. The SEM, EDX and XRD analysis showed the presence ofCuOparticles in the polymer films with dimensions less than 50 nm. From cyclic voltamperometry experiments, the composite activity for the nitrate electroreduction reaction was evaluated and the peak of nitrate reduction is found to vary linearly with initial nitrate concentration.

Suggested Citation

  • A. Hamam & D. Oukil & A. Dib & H. Hammache & L. Makhloufi & B. Saidani, 2015. "Polypyrrole Coated Cellulosic Substrate Modified By Copper Oxide As Electrode For Nitrate Electroreduction," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 22(05), pages 1-11.
    • Handle: RePEc:wsi:srlxxx:v:22:y:2015:i:05:n:s0218625x15500651
    DOI: 10.1142/S0218625X15500651
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