Materials Based on Modified SnO2 for Selective Gas Sensors

Year: 2010

Authors: Krivetskiy V.V., Ponzoni A., Comini E., Badalyan S.M., Rumyantseva M.N., Gaskov A.M.

Autors Affiliation: Moscow MV Lomonosov State Univ, Fac Chem, Moscow 119991, Russia; Univ Brescia, CNR INFM Sensor Lab, I-25133 Brescia, Italy; Univ Brescia, Dept Phys & Chem Engn & Mat, I-25133 Brescia, Italy; Russian Acad Sci, Kurnakov Inst Gen & Inorgan Chem, Moscow 119991, Russia.

Abstract: This paper presents an approach to improving the selectivity of gas sensors based on nanocrystalline tin dioxide. We demonstrate that chemical modification of the surface of SnO2 crystallites with catalytic metal oxide and gold clusters considerably enhances the selectivity of their sensing response to a variety of reducing gases at gas concentrations near the maximum permissible level. This approach can be used to produce electronic nose multisensor arrays.

Journal/Review: INORGANIC MATERIALS

Volume: 46 (10)      Pages from: 1100  to: 1105

More Information: This work was supported by the Russia-Europe consortium intended to accomplish the Nanosciences, Nanotechnologies, Materials and New Production Technologies Collaborative Project, Seventh Framework Program for Research and Technological Development (FP7), European Union. We also acknowledge the support from the Federal Agency for Science and Innovation, state contract no. CP-FP 247768 S3/02.527.11.2008.
KeyWords: Tin; Oxidation
DOI: 10.1134/S0020168510100134

Citations: 12
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