Email this article Influence of La(III) on the reactivity and sensor properties of nanocrystalline SnO2
- Authors: Krivetskiy V.V.1, Rozhik R.V.2, Rumyantseva M.N.1, Mordvinova N.E.1, Smirnov A.V.1, Garshev A.V.2, Gaskov A.M.1
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Affiliations:
- Lomonosov Moscow State University Chemistry Department
- Lomonosov Moscow State University Department of Materials Science
- Issue: Vol 61, No 11 (2016)
- Pages: 1368-1373
- Section: Synthesis and Properties of Inorganic Compounds
- URL: https://bakhtiniada.ru/0036-0236/article/view/166862
- DOI: https://doi.org/10.1134/S0036023616110115
- ID: 166862
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Abstract
Synthesis of Sn(IV) and La(III) based nanocomposites has been effectuated. According to the data obtained by XRD and TPR-H2 methods, it is supposed that La in nanocompites is located in amorphous La2Sn2O7 segregation. The effect of La(III) on the adsorption properties of SnO2 surface and concentration of chemisorbed oxygen was determined. Sensor properties of obtained materials towards 10 ppm of CO in air were studied by in situ DC conductance measurements. It is shown that La introduction allows to increase sensor response of SnO2 during CO detection in air.
About the authors
V. V. Krivetskiy
Lomonosov Moscow State University Chemistry Department
Email: roum@inorg.chem.msu.ru
Russian Federation, Moscow
R. V. Rozhik
Lomonosov Moscow State University Department of Materials Science
Email: roum@inorg.chem.msu.ru
Russian Federation, Moscow
M. N. Rumyantseva
Lomonosov Moscow State University Chemistry Department
Author for correspondence.
Email: roum@inorg.chem.msu.ru
Russian Federation, Moscow
N. E. Mordvinova
Lomonosov Moscow State University Chemistry Department
Email: roum@inorg.chem.msu.ru
Russian Federation, Moscow
A. V. Smirnov
Lomonosov Moscow State University Chemistry Department
Email: roum@inorg.chem.msu.ru
Russian Federation, Moscow
A. V. Garshev
Lomonosov Moscow State University Department of Materials Science
Email: roum@inorg.chem.msu.ru
Russian Federation, Moscow
A. M. Gaskov
Lomonosov Moscow State University Chemistry Department
Email: roum@inorg.chem.msu.ru
Russian Federation, Moscow
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