Effect of humidity on conductivity of nanocomposite electrodes
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Date
2019-06
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G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand)
Abstract
A series of NHs were prepared through surfactant assisted dispersion polymerization of indole in presence of various concentrations of WC. For this purpose, concentration (%,w/w) of WC was ranged from 5.0 to 15.Graphite based electrodes were fabricated from NHs in presence of PVB over iron substrate (1 cm2) and investigated for their microstructure, stability under heat and humid environment. Molecular binding of electrode materials was investigated through FTIR spectra. With concentration of WC, a regular increase in electrical conductivity of electrodes was observed, that was compromised on humidity treatment beyond 6hr. Generally in humid environment the thermal stability and electrical conductivity of electrode were found increases but after 6h of humidity electrical conductivity shows decreasing order. Electrical conductivity of electrodes was investigated through four point probe method in presence of a nanovoltmeter and current source. Study reveals that humidity treatment has enhanced the thermal stability and electrical conductivity of NHs derived electrodes.
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