SnO sub(2)(Au super(0), Co super(II, III)) nanocomposites: A synergistic effect of the modifiers in CO detection

Nanocrystalline SnO sub(2) has been synthesized and its surface has been modified with Au super(0) and Co(II, III). The distribution of the modifiers over the nanocomposites has been studied by X-ray diffraction, inductively coupled plasma mass spectrometry, and transmission electron microscopy. The...

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Bibliographic Details
Published in:Inorganic materials 2016-02, Vol.52 (2), p.94-100
Main Authors: Vladimirova, SA, Rumyantseva, M N, Filatova, D G, Kozlovskii, V F, Chizhov, A S, Khmelevskii, N O, Marchevskii, A V, Li, Xiaogan, Gaskov, A M
Format: Article
Language:English
Subjects:
Hydrogen reduction
Inductively coupled plasma
Nanocomposites
Nanocrystals
Semiconductors
Synthesis
Tin dioxide
X ray diffraction
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Summary:Nanocrystalline SnO sub(2) has been synthesized and its surface has been modified with Au super(0) and Co(II, III). The distribution of the modifiers over the nanocomposites has been studied by X-ray diffraction, inductively coupled plasma mass spectrometry, and transmission electron microscopy. The effect of the modifiers on the hydrogen reduction of nanocrystalline SnO sub(2) has been assessed. The CO sensing properties of the synthesized materials (10 ppm CO in air) have been studied in situ by electrical conductance measurements. The addition of both Au super(0) and Co(II, III) allows the working temperature of the SnO sub(2)-based semiconductor sensor to be lowered to 215 degree C.
ISSN:0020-1685
1608-3172
DOI:10.1134/S0020168516020163