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Response To Ascorbic Acid On Polypyrrole Film Modified By Copper Particles

Author

Listed:
  • I. CHIKOUCHE

    (Laboratoire de Croissance et Caractérisation de Nouveaux Semi Conducteurs, Département de Génie des Procédés, Faculté de Technologie, Université Ferhat Abbas Sétif 1, Sétif 19000, Algérie†Département des Sciences de la matiére, Faculté des Sciences et de la Technologie, Université Mohamed El Bachir El Ibrahimi, Bordj Bou Arréridj, Algérie)

  • C. DEHCHAR

    (#x2021;Research Center in Industrial Technologies CRTI, P. O. Box 64, Cheraga 16014, Algeria)

  • A. SAHARI

    (Laboratoire de Croissance et Caractérisation de Nouveaux Semi Conducteurs, Département de Génie des Procédés, Faculté de Technologie, Université Ferhat Abbas Sétif 1, Sétif 19000, Algérie)

  • N. LOUCIF

    (Laboratoire de Croissance et Caractérisation de Nouveaux Semi Conducteurs, Département de Génie des Procédés, Faculté de Technologie, Université Ferhat Abbas Sétif 1, Sétif 19000, Algérie)

Abstract

In this work, a modified electrode of copper-polypyrrole (Cu-PPy) is elaborated by charging the polymer matrix by Cu particles. The response to ascorbic acid (AA) of this material was tested. The results show good performances. The results indicated a sensitive oxidation peak current of AA on the modified electrode. The success of this application led us to study the nucleation mechanism of copper on the PPy surface which permits to obtain this response. Nucleation and growth of electrodeposited copper onto PPy substrate have been studied in an aqueous solution of 0.01M CuCl2 and 1M KCl by means of electrochemical methods: cyclic voltammetry, chronoamperometry, and using atomic force microscopy (AFM). The model described by Scharifker and Hills was used to analyze current-time transients. According to this model, the nucleation and growth kinetics at the initial stages of deposition process involve an instantaneous nucleation followed by three-dimensional (3D) growth mechanism.

Suggested Citation

  • I. Chikouche & C. Dehchar & A. Sahari & N. Loucif, 2019. "Response To Ascorbic Acid On Polypyrrole Film Modified By Copper Particles," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 26(05), pages 1-7, June.
    • Handle: RePEc:wsi:srlxxx:v:26:y:2019:i:05:n:s0218625x18501871
    DOI: 10.1142/S0218625X18501871
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