The effect of vacuum annealing on structure of composites based on multi-walled carbon nanotubes and tin oxide formed using the magnetron sputtering method
Using the method of X-ray photoelectron spectroscopy (XPS) and transmission electron microscopy, the effect of heat treatments under ultrahigh vacuum on the structure and chemical composition of composites based on multi-walled carbon nanotubes (MWCNTs) and tin oxide formed using the magnetron s...
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| Main Author: | |
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| Format: | Article |
| Language: | English |
| Published: |
Omsk State Technical University, Federal State Autonoumos Educational Institution of Higher Education
2020-09-01
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| Series: | Омский научный вестник |
| Subjects: | |
| Online Access: | https://www.omgtu.ru/general_information/media_omgtu/journal_of_omsk_research_journal/files/arhiv/2020/4%20(172)/89-93%20%D0%9D%D0%B5%D1%81%D0%BE%D0%B2%20%D0%A1.%20%D0%9D..pdf |
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| Summary: | Using the method of X-ray photoelectron spectroscopy (XPS) and
transmission electron microscopy, the effect of heat treatments
under ultrahigh vacuum on the structure and chemical composition
of composites based on multi-walled carbon nanotubes (MWCNTs)
and tin oxide formed using the magnetron sputtering is studied.
The processes occurring in the composite at various temperature
conditions of heat treatment are determined. It is shown that
vacuum annealing of the composite at a temperature of 500 °С
leads to homogenization of the composition of the metal oxide
component due to the disproportionation of oxide Sn (II) with
the formation of a more stable oxide Sn (IV). With an increase
in the temperature of vacuum annealing to 800 °C, oxide Sn (IV)
is reduced to tin metal upon interaction with carbon. The results
obtained in this work can be used for directional modification
of the structure of composites based on nanostructured carbon
materials and tin oxide. |
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| ISSN: | 1813-8225 2541-7541 |