Electropolymerization and multifunctional properties of novel polypyrrole films embedded with Co nanoparticles

被引：13
|
作者：
Gao, Min [2 ]
Lu, Liying [1 ]
Xu, Xiaoguang [2 ]
Yao, Zhe [1 ]
Jiang, Yong [2 ]
机构：
[1] Univ Sci & Technol Beijing, Sch Chem & Biol Engn, Beijing 100083, Peoples R China
[2] Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China
来源：
ELECTROCHIMICA ACTA | 2017年 / 228卷
基金：
美国国家科学基金会;
关键词：
polypyrrole films; electropolymerization; magnetic property; dielectricity; MAGNETIC-PROPERTIES; ELECTROMAGNETIC PROPERTIES; ELECTROCHEMICAL SYNTHESIS; NANOCOMPOSITES; METACOMPOSITES; MAGNETORESISTANCE; COMPOSITES; ELECTRODE;
D O I：
10.1016/j.electacta.2017.01.117
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
A novel electropolymerization process has been presented to prepare compact polypyrrole (PPy) polymer films embedded with different cobalt nanoparticle (Co NP) loadings by using cyclic voltammetry. An electropolymerization mechanism is suggested and further confirmed by Fourier transform infrared (FT-IR) spectroscopy and Raman spectroscopy of pure PPy and PPy polymer nanocomposites (PNCs). The PPy/Co PNCs exhibit unique multifunctional properties. Firstly, they are superparamagnets at room temperature, whose saturation magnetization can be controlled by modifying the concentration of Co NPs in the electrolyte solution. Secondly, they show not only semiconductor transportation behavior but also a negative rnagnetoresistance under external magnetic field. The permittivity of the PPy/Co PNCs switches from negative to positive with the increasing frequency. Both the outstanding magnetic and electrical properties make the PPy PNCs promising as one kind of microwave absorbing materials. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码：522 / 527
页数：6
相关论文
共 50 条
  • [31] Iron nanoparticles embedded in carbon films: structural and optical properties
    Mashayekhi, Fatemeh
    Shafiekhani, Azizollah
    Sebt, Seyed Ali
    EUROPEAN PHYSICAL JOURNAL-APPLIED PHYSICS, 2016, 74 (03):
  • [32] Multifunctional carbon nanotubes with nanoparticles embedded in their walls
    Mattia, D.
    Korneva, G.
    Sabur, A.
    Friedman, G.
    Gogotsi, Y.
    NANOTECHNOLOGY, 2007, 18 (15)
  • [33] Electropolymerization of flavins and the properties of the resulting electroactive films
    Ivanova, YN
    Karyakin, AA
    ELECTROCHEMISTRY COMMUNICATIONS, 2004, 6 (02) : 120 - 125
  • [34] Au nanoparticles embedded in mesoporous ZrO2 films: Multifunctional materials for electrochemical detection
    Coneo Rodriguez, Rusbel
    Bruno, Mariano M.
    Angelome, Paula C.
    SENSORS AND ACTUATORS B-CHEMICAL, 2018, 254 : 603 - 612
  • [35] Co Nanoparticles Induced Resistive Switching and Magnetism for the Electrochemically Deposited Polypyrrole Composite Films
    Xu, Zedong
    Gao, Min
    Yu, Lina
    Lu, Liying
    Xu, Xiaoguang
    Jiang, Yong
    ACS APPLIED MATERIALS & INTERFACES, 2014, 6 (20) : 17823 - 17830
  • [36] Electropolymerization of Polypyrrole Films in Aqueous Solution with Side-Coupler Agent to Hydrophobic Groups
    Alfaro-Lopez, H. M.
    Aguilar-Hernandez, J. R.
    Garcia-Borquez, A.
    Hernandez-Perez, M. A.
    Contreras-Puente, G. S.
    INTERFACE CONTROLLED ORGANIC THIN FILMS, 2009, 129 : 73 - 78
  • [37] FORMATION OF SURFACE-MODIFIED POLYPYRROLE FILMS BY ELECTROPOLYMERIZATION ON NONCONDUCTING SOLID-SURFACES
    SHAPIRO, JS
    SMITH, WT
    POLYMER, 1993, 34 (20) : 4336 - 4340
  • [38] Magnetic and transport properties of Co nanoparticles embedded in a carbon matrix
    Liu, P
    Huang, Y
    Zhang, Y
    Bonder, MJ
    Hadjipanayis, GC
    Vlachos, D
    Deshmukh, SR
    JOURNAL OF APPLIED PHYSICS, 2005, 97 (10)
  • [39] Electropolymerization of DBSA-doped polypyrrole films on PTFE via an electroless copper interlayer
    Prissanaroon, W
    Brack, N
    Pigram, PJ
    Liesegang, J
    SURFACE AND INTERFACE ANALYSIS, 2003, 35 (12) : 974 - 983
  • [40] Impact of Embedded Co Nanoparticles on Local Magnetic Properties of <bold>L</bold>10-FePt Films
    Paleo, Charles
    Wilhelm, Fabrice
    Ohresser, Philippe
    Otero, Edwige
    Dias, Andre
    Dempsey, Nora M.
    Dupuis, Veronique
    Le Roy, Damien
    IEEE TRANSACTIONS ON MAGNETICS, 2023, 59 (11)
12345