Synthesis of Tungsten Carbide-Filled Multiwalled Carbon Nanotubesby DC Arc Discharge Plasma in Ambient Air; Nanotechnologies in Russia; Vol. 14, iss. 11-12
| Parent link: | Nanotechnologies in Russia Vol. 14, iss. 11-12.— 2019.— [P. 531-535] |
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| मुख्य लेखक: | |
| निगमित लेखक: | |
| अन्य लेखक: | |
| सारांश: | 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 |
| भाषा: | अंग्रेज़ी |
| प्रकाशित: |
2019
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| विषय: | |
| ऑनलाइन पहुंच: | https://doi.org/10.1134/S1995078019060120 |
| स्वरूप: | इलेक्ट्रोनिक पुस्तक अध्याय |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=663189 |
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| 200 | 1 | |a Synthesis of Tungsten Carbide-Filled Multiwalled Carbon Nanotubesby DC Arc Discharge Plasma in Ambient Air |f A. Ya. Pak, Yu. Z. Vasiljeva (Vassilyeva) | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 22 tit.] | ||
| 330 | |a 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. | ||
| 333 | |a Режим доступа: по договору с организацией-держателем ресурса | ||
| 461 | |t Nanotechnologies in Russia | ||
| 463 | |t Vol. 14, iss. 11-12 |v [P. 531-535] |d 2019 | ||
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| 701 | 1 | |a Vasiljeva (Vassilyeva) |b Yu. Z. |c specialist in the field of electric power engineering |c Researcher, Associate Professor of Tomsk Polytechnic University, Candidate of Technical Sciences |f 1995- |g Yuliya Zakharovna |3 (RuTPU)RU\TPU\pers\46740 |9 22376 | |
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