Аналитическая химия: индийский журнал
ISSN (PRINT): 0974-7419

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Synthesis and DC Conductivity of Polypyrrole/SnO2 Nanocomposites

M. S. Bhende, R. S. Bobade, S. P. Yawale and S. S. Yawale


Conducting polymer composites of polypyrrole/tin oxide (PPy/SnO2) are synthesized by in-situ polymerization of pyrrole with SnO2 using FeCl3 as an oxidant. The SnO2 was varied in five different wt. % of SnO2 in PPy/ SnO2 composites. The dc conductivity and impedance were studied. It was observed that the values of conductivities increase up to 20 wt. % of tin oxide in polypyrrole and decreases thereafter. It reveals that the SnO2 concentration in PPy is responsible for the variation of conductivity of the composites. The grain size of SnO2 is found to be of the order of 10 to 20 nm and of polypyrrole is 200 to 500 nm by TEM analysis techniques.


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