Synthesis, characterisation, and DC conductivity of polyaniline-lead oxide composites |
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Authors: | Ameena Parveen Raghunandan Dashpande Shakeel Ahmed Aashis S Roy |
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Institution: | 1. Department of Physics, Government First Grade College, Gurmitkal, Yadgir, 585214, Karnataka, India 2. Department of Pharmaceutical Chemistry, H.K.E. Society’s Matoshree Taradevi Institute of Pharmaceutical Sciences, Gulbarga, 585104, Karnataka, India 3. Department of Physics, Government First Grade College, Bhalki, Bidar, 585401, Karnataka, India 4. Materials Engineering Department, Indian Institute of Science, Bangalore, 560012, Karnataka, India
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Abstract: | The polyaniline-PbO composites of various mass fractions were prepared by in situ polymerisation. The prepared samples were characterised by FTIR, and the dominant peaks confirmed the formation of polyaniline-PbO composites. The SEM study shows a granular agglomerated morphology, and increases with an increase in the lead oxide mass % in polyaniline. Direct current (DC) conductivity (σ DC) was studied as a function of temperature (T). From these studies, it was found that conductivity increased at higher temperatures due to the polarons hopping from one localised state to another. DSC studies reveal, the decrease in peak temperature from 273°C (pure PANI) to 169.2°C, 193.5°C, 218.4°C, 235.2°C, and 224.2°C, respectively for the various mass fractions (10 %, 30 %, 20 %, 40 %, and 50 %) of polyaniline-PbO composites. |
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