Synthesis of “Silica – Carbon Nanotubes” Composite and Investigation of its Properties

V. V. Chesnokov; A. S. Chichkan; V. S. Luchihina; E. A. Paukshtis; V. N. Parmon; Z. A. Mansurov; Z. R. Ismagilov

doi:10.18321/ectj199

Eurasian Chemico-Technological Journal (Apr 2015)

Synthesis of “Silica – Carbon Nanotubes” Composite and Investigation of its Properties

V. V. Chesnokov,
A. S. Chichkan,
V. S. Luchihina,
E. A. Paukshtis,
V. N. Parmon,
Z. A. Mansurov,
Z. R. Ismagilov

Affiliations

V. V. Chesnokov: Boreskov Institute of Catalysis SB RAS, pr. Akademika Lavrentieva 5, 630090 Novosibirsk, Russia Institute of Coal Chemistry and Material Science SB RAS, pr. Sovetskiy 18, 650000 Kemerovo, Russia
A. S. Chichkan: Boreskov Institute of Catalysis SB RAS, pr. Akademika Lavrentieva 5, 630090 Novosibirsk, Russia Institute of Coal Chemistry and Material Science SB RAS, pr. Sovetskiy 18, 650000 Kemerovo, Russia
V. S. Luchihina: Boreskov Institute of Catalysis SB RAS, pr. Akademika Lavrentieva 5, 630090 Novosibirsk, Russia
E. A. Paukshtis: Boreskov Institute of Catalysis SB RAS, pr. Akademika Lavrentieva 5, 630090 Novosibirsk, Russia
V. N. Parmon: Boreskov Institute of Catalysis SB RAS, pr. Akademika Lavrentieva 5, 630090 Novosibirsk, Russia
Z. A. Mansurov: Institute of Combustion Problems, Bogenbay str. 172, 050012, Almaty, Kazakhstan
Z. R. Ismagilov: Boreskov Institute of Catalysis SB RAS, pr. Akademika Lavrentieva 5, 630090 Novosibirsk, Russia Institute of Coal Chemistry and Material Science SB RAS, pr. Sovetskiy 18, 650000 Kemerovo, Russia

DOI: https://doi.org/10.18321/ectj199
Journal volume & issue: Vol. 17, no. 2
pp. 95 – 100

Abstract

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A new method for synthesis of CNT-SiO2 composite was developed. Oligomethylhydridesiloxane (OMHS) was used as the SiO2 precursor. The presence of active hydrogen in the composition of OMHS made it possible to obtain chemical interaction between the surface of carbon nanotubes and the deposited silica layer. The effect of the silica film on the CNT oxidizing ability was studied. It was found that the oxidation rate of the CNT-SiO2 composite decreases approximately by an order of magnitude in comparison with as-prepared CNT. The morphology and structure of amorphous silica obtained after oxidation of the CNT-SiO2 composite were studied. The thermal stability of the CNT-SiO2 composite was also studied. The CNT-SiO2 composite was found to be thermally stable up to temperatures of 1100-1200 ºC. An increase in the calcination temperature to 1300 ºC leads to segregation of the CNT-SiO2 composite into individual components: CNT and SiO2 particles.

A. Ceramic-matrix composites (CMCs); A. Nano-structures; B. Chemical properties; E. Heat treatment.

Published in Eurasian Chemico-Technological Journal

ISSN: 1562-3920 (Print); 2522-4867 (Online)
Publisher: al-Farabi Kazakh National University
Country of publisher: Kazakhstan
LCC subjects: Science: Chemistry
Website: http://ect-journal.kz

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