Experimental Studies of D.C. Conductivity and Thermo Electric Power of Polypyrrole/Titanium Dioxide Nano Composites

The polypyrrole (PPy)/titanium dioxide (TiO2) nano composites were synthesized by chemical polymerization technique in the presence of an ammonium persulphate (oxidizing agent). The PPy/TiO2 nano composites which were synthesized by using different concentrations 15, 30, 45 and 60 weight percents of...

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Published inMaterials today : proceedings Vol. 5; no. 10; pp. 20874 - 20881
Main Authors Aaditya, V.B., Prabhu, Akhil D., Bharathesh, B.M., Chaluvaraju, B.V., Raghavendra, U.P., Thipperudrappa, J., Murugendrappa, M.V.
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 2018
Subjects
Conductivity
Nano Composites
Polypyrrole
TEP
Titanium Dioxide
Conductivity
Titanium Dioxide
Nano Composites
Polypyrrole
TEP
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Summary:The polypyrrole (PPy)/titanium dioxide (TiO2) nano composites were synthesized by chemical polymerization technique in the presence of an ammonium persulphate (oxidizing agent). The PPy/TiO2 nano composites which were synthesized by using different concentrations 15, 30, 45 and 60 weight percents of titanium dioxide in pyrrole. The nano composites have spherical type shaped particles which have cluster formation as confirmed from SEM photos. D.C. conductivity study reveals that the PPy/TiO2 (30 %) nano composite has highest conductivity. The conductivity has increased for 30 wt. % of TiO2 in PPy and decreased later. This weight percent is threshold potential for the composites and obeys percolation theory. Thermo electric power study shows the semiconductor behavior for all the nano composites. Hence, the PPy/TiO2 nano composites are good thermo electric materials and have found applications in micro power generator & thermo cooling.
ISSN:2214-7853
2214-7853
DOI:10.1016/j.matpr.2018.06.474