Synthesis, characterization and microwave absorption properties of La0.6Sr0.4MnO3/polyaniline composite

被引:42
作者
Cui, Kun [1 ]
Cheng, Yulan [2 ]
Dai, Jianming [3 ]
Liu, Jieping [1 ]
机构
[1] Huaibei Normal Univ, Coll Chem & Mat Sci, Huaibei 235000, Anhui, Peoples R China
[2] Hunan Inst Engn, Coll Mech Engn, Xiangtan 411100, Hunan, Peoples R China
[3] Chinese Acad Sci, Key Lab Mat Phys, Inst Solid State Phys, Hefei 230031, Peoples R China
基金
美国国家科学基金会;
关键词
Composite materials; Chemical synthesis; Electrical properties; Magnetic properties; ABSORBING PROPERTIES; POLYANILINE; NANOCOMPOSITES; FERRITE; MAGNETORESISTANCE; NANOPARTICLES; PERMITTIVITY; JUNCTIONS;
D O I
10.1016/j.matchemphys.2012.12.064
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
La0.6Sr0.4MnO3/polyaniline nanocomposites were successfully synthesized via in-situ polymerization of aniline, with ammonium persulfate as oxidant and NaDBS as surfactant. The spectroscopic characterization indicated that the La0.6Sr0.4MnO3 nanoparticles were dispersed in the matrix of polyaniline. The polyaniline continuously deposited on the surface of La0.6Sr0.4MnO3 nanoparticles. Many patches of small cloud-like structures were formed in the nanocomposites. It was found that the dielectric loss of electric dipole polarization produced by PANI and the magnetic loss produced by LSMO can be combined in the composite to improve microwave absorption performance. In addition, the characteristics of microwave absorption properties of the nanocomposites can be adjusted by controlling the compositions of the nanocomposites. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码:810 / 816
页数:7
相关论文
共 31 条
  • [1] Complex permittivity and microwave absorption properties of BaTiO3-polyaniline composite
    Abbas, SM
    Dixit, AK
    Chatterjee, R
    Goel, TC
    [J]. MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, 2005, 123 (02): : 167 - 171
  • [2] Electromagnetic and microwave absorption properties of carbonyl iron/La0.6Sr0.4MnO3 composites
    Cheng, Y. L.
    Dai, J. M.
    Wu, D. J.
    Sun, Y. P.
    [J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2010, 322 (01) : 97 - 101
  • [3] Enhanced Microwave Absorption Properties of Intrinsically Core/shell Structured La0.6Sr0.4MnO3 Nanoparticles
    Cheng, Y. L.
    Dai, J. M.
    Zhu, X. B.
    Wu, D. J.
    Yang, Z. R.
    Sun, Y. P.
    [J]. NANOSCALE RESEARCH LETTERS, 2009, 4 (10): : 1153 - 1158
  • [4] Magnetic and conductive Fe3O4-polyaniline nanoparticles with core-shell structure
    Deng, JG
    He, CL
    Peng, YX
    Wang, JH
    Long, XP
    Li, P
    Chan, ASC
    [J]. SYNTHETIC METALS, 2003, 139 (02) : 295 - 301
  • [5] Characterization and dielectric properties of polyaniline-TiO2 nanocomposites
    Dey, A
    De, S
    De, A
    De, SK
    [J]. NANOTECHNOLOGY, 2004, 15 (09) : 1277 - 1283
  • [6] Polyaniline/magnetic ferrite nanocomposites obtained by in situ polymerization
    Jiang, Jing
    Li, Liangchao
    Zhu, Mingh
    [J]. REACTIVE & FUNCTIONAL POLYMERS, 2008, 68 (01) : 57 - 62
  • [7] Polyaniline-LiNi ferrite core-shell composite: Preparation, characterization and properties
    Jiang, Jing
    Li, Liangchao
    Xu, Feng
    [J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2007, 456 (1-2): : 300 - 304
  • [8] THOUSANDFOLD CHANGE IN RESISTIVITY IN MAGNETORESISTIVE LA-CA-MN-O FILMS
    JIN, S
    TIEFEL, TH
    MCCORMACK, M
    FASTNACHT, RA
    RAMESH, R
    CHEN, LH
    [J]. SCIENCE, 1994, 264 (5157) : 413 - 415
  • [9] Electrosynthesis of macroporous polyaniline-V2O5 nanocomposites and their unusual magnetic properties
    Karatchevtseva, Inna
    Zhang, Zhaoming
    Hanna, John
    Luca, Vittorio
    [J]. CHEMISTRY OF MATERIALS, 2006, 18 (20) : 4908 - 4916
  • [10] Hybrid core-shell nanocomposites based on silicon carbide nanoparticles functionalized by conducting polyaniline: Electron paramagnetic resonance investigations
    Kassiba, A.
    Bednarski, W.
    Pud, A.
    Errien, N.
    Makowska-Janusik, M.
    Laskowski, L.
    Tabellout, M.
    Kodjikian, S.
    Fatyeyeva, K.
    Ogurtsov, N.
    Noskov, Y.
    [J]. JOURNAL OF PHYSICAL CHEMISTRY C, 2007, 111 (31) : 11544 - 11551