Copper and nickel doping effect on interaction of SnO2 films with H2S

Autor:	I. B. Kutsenok, Alexander Gaskov, G. Delabouglise, Marina Rumyantseva, M. Labeau, Ludmila I. Ryabova
Rok vydání:	1997
Předmět:	Auger electron spectroscopy Materials science Tin dioxide Non-blocking I/O Doping Inorganic chemistry Analytical chemistry chemistry.chemical_element General Chemistry Copper Nickel chemistry.chemical_compound chemistry X-ray photoelectron spectroscopy Materials Chemistry Crystallite
Zdroj:	Journal of Materials Chemistry. 7:1785-1790
ISSN:	1364-5501 0959-9428
DOI:	10.1039/a701896g
Popis:	The pyrosol spraying deposition technique has been used for the synthesis of SnO 2 , SnO 2 –CuO and SnO 2 –NiO polycrystalline films with grain size of 3–10 nm. The composition, microstructure and electrical properties of the films have been investigated by X-ray diffraction, electron probe microanalysis, Auger electron spectroscopy and X-ray photoelectron spectroscopy. The interaction of SnO 2 , SnO 2 –CuO and SnO 2 –NiO polycrystalline films with the reducing gases: H 2 S, C 2 H 5 OH, CO and CH 4 has been investigated by conductance measurements. It has been found that copper and nickel have a significant effect on the sensitivity of SnO 2 films to H 2 S. The model of interaction of SnO 2 films with H 2 S gas and different sensor properties of tin dioxide films doped with copper and nickel are discussed with regard to the position of these metals in the films.
Databáze:	OpenAIRE
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