Open AccessSynthesis and characterization of polyaniline-nickel chloride composites
Author(s) -
Sangeeta Prasher,
Mukesh Kumar,
Updesh Kaur,
Sachin Tyagi
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1531/1/012002
Subject(s) - polyaniline , materials science , fourier transform infrared spectroscopy , band gap , chloride , composite material , nuclear chemistry , chemical engineering , polymer , chemistry , metallurgy , optoelectronics , engineering , polymerization
NiCl 2 /polyaniline composites with varying NiCl 2 concentration have been synthesized and characterized for structural and optical modifications in polyaniline with the addition of NiCl 2 , and to explore the effect of addition of NiCl 2 on the electrical properties of polyaniline. FTIR spectral peaks attributed to various entities present in polyaniline have been shifted towards longer wavelengths with the addition of NiCl 2 . The d-spacing for the two x-ray diffraction peaks at 20.30° and 26.22° has been determined by using the Bragg’s relation and found to decrease with the addition of NiCl 2 . The SEM images of the composites indicate the uniform dispersal of the salt in the polymeric conformation. The band edge of UV-VIS spectra of the composites has been found to blue shift indicating increase in the band gaps with the increased NiCl2 concentration except for a concentration of 5%. The capacitance has been found to decrease with increase in frequency and the increase in the NiCl 2 content. The resistance has been found to increase with the addition of NiCl 2 thus establishing a positive correlation between the optical band gap and variations of resistance with the addition of NiCl 2 to the polyaniline.