Effect of molybdenum trioxide (MoO3) on the electrical conductivity of polyaniline

被引:32
作者
Anilkumar, Koppalkar R. [1 ]
Parveen, Ameena [2 ]
Badiger, G. R. [3 ]
Prasad, M. V. N. Ambika [1 ]
机构
[1] Gulbarga Univ, Dept Mat Sci, Gulbarga, Karnataka, India
[2] Gulbarga Univ, Dept Phys, Gulbarga, Karnataka, India
[3] SS Margol Coll, Dept Chem, Gulbarga, Karnataka, India
关键词
Polyaniline (PANI); Molybdenum trioxide (MoO3); Composites; Conductivity; POLYPYRROLE; COMPOSITES; FILMS;
D O I
10.1016/j.physb.2009.01.046
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
In situ polymerization of aniline was carried out in the presence of molybdenum trioxide to synthesize polyaniline/molybdenum trioxide composites (PANI/MoO3) by chemical oxidation method. The composites have been synthesized with various compositions (10, 20, 30, 40 and 50wt%) of MoO3 in PANI. The surface morphology of these composites was studied with scanning electron micrograph (SEM). The PANI/MoO3 composites were also characterized by X-ray diffractometry (XRD) and infrared spectroscopy (FTIR). The ac conductivity behaviour has been investigated in the frequency range 10(2)-10(6) Hz. The dc conductivity has been studied in the temperature range from 40 degrees C to 200 degrees C and supports the one-dimensional variable range hopping (1D-VRH) model proposed by Mott. The presence of MoO3 in the matrix has a greater influence on the observed conductivity values than that of PANI. The results obtained for these composites are of scientific and technological interest. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码:1664 / 1667
页数:4
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