Synthesis of Tungsten Carbide-Filled Multiwalled Carbon Nanotubesby DC Arc Discharge Plasma in Ambient Air
| Parent link: | Nanotechnologies in Russia Vol. 14, iss. 11-12.— 2019.— [P. 531-535] |
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| Summary: | Title screen In this paper, the possibility of synthesizing multiwalled carbon nanotubes (CNTs) by DC arc discharge plasma in ambient air is shown. The synthesis takes place in a graphite cathode with a crucible shape using tungsten powder as a catalyst. In the non-vacuum synthesis method the CO atmosphere is generated in the reaction zone during the arcing, preventing the products of the synthesis from oxidation. According to the X-ray diffraction analysis (XRD), the synthesized product includes more than 85 vol % of carbon crystalline phases with a graphite-like structure, a cubic tungsten phase, and two phases of tungsten carbide WC and W2C. The transmission electron microscopy data shows that the product of the synthesis contains CNTs with a relatively large number of walls (up to ~50 pcs) (MWCNTs) with a diameter of up to ~100 nm and a length of up to ~1.5 µm. It was found that crystalline objects corresponding in structure to WC tungsten carbide are identified inside CNTs. Режим доступа: по договору с организацией-держателем ресурса |
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2019
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| Online Access: | https://doi.org/10.1134/S1995078019060120 |
| Format: | Electronic Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=663189 |