| Autor: |
Borisov, V. A., Iost, K. N., Temerev, V. L., Surovikin, Y. V., Smorokov, A. A., Fedotova, P. A., Shlyapin, D. A. |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 2019, Vol. 2141 Issue 1, p020017-1-020017-5, 5p |
| Abstrakt: |
The effect of high-temperature (1400-2200 °C) treatment of the carbon material Sibunit on its structural properties was studied. High-temperature treatment leads to structural ordering of the initial Sibunit. As a result of preliminary graphitization, specific surface area decreases by a factor of 10, but thermal stability increases. A good correlation between XRD, Raman spectroscopy and TGA data is observed. For the Sibunit sample treated at 2200 °C, the interplanar distance d(002) estimated by XRD decreases by 0.05 Å in comparison with the initial Sibunit, ID/IG decreases from 1.59 to 1.18, and the 2D line substantially increases, which testify to the structural ordering. According to TGA, the temperatures corresponding to the onset of oxidation, 50% oxidation and the end of oxidation of Sibunit calcined at 2200 °C are synchronously shifted by 100 °C with respect to the initial Sibunit. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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