SnO2 and Ni Doped SnO2/Polithiophene Nanocomposites for Gas Sensing Application
P. Pascariu1, I.V. Tudose2,3, D. Vernardou2, E. Koudoumas2, O.N. Ionescu4, M. Suchea2,4*
1 - ”Petru Poni” Institute of Macromolecular Chemistry, 41A Gr. Ghica Voda Alley, Iaşi-700487, Romania
2 - Center of Materials Technology and Photonics, Hellenic Mediterranean University, Estavromenos, 71004, Heraklion, Crete, Greece
3 - Chemistry Department, University of Crete, Vassilika Voutes 700 13 Heraklion, Crete, Greece
4 - National Institute for Research and Development in Microtechnologies (IMT-Bucharest), 126A, Erou Iancu Nicolae Street, 077190, Bucharest, Romania
Abstract: Nanocomposites of SnO2 (undoped and doped with Ni) and polythiophene (PTh) were synthesized by the electrochemical oxidative polymerization of thiophene in the presence of the two types of nanoparticles obtained by co‐precipitation.The nanocomposites were characterized by scanning electron microscopy and X-ray photoelectron spectroscopy. The electrochemical properties of these nanocomposites were evaluated utilizing cyclic voltammetry. The nanocomposites conductivity variation with temperature was studied in air and ethen were exposed to different pollutant gases. They prove to be promising materials for sensing applications.