| Autor: |
Feng Wang, Xiaofang Qin, Lixia Yang, Shanmin Gao, Qingyao Wang, Zhenglong Yang |
| Předmět: |
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| Zdroj: |
Micro & Nano Letters (Wiley-Blackwell); 2018, Vol. 13 Issue 10, p1453-1456, 4p |
| Abstrakt: |
Carbon microfibres (CMFs) were synthesised on SiO2 particles by catalytic chemical vapour deposition at 1200°C using ethanol as carbon precursor, iron nitrate as the catalyst precursor, and nitrogen as a carrier gas. The structure and morphology of the products were characterised by X-ray diffraction, scanning electron microscopy, high-resolution transmission electron microscopy and Raman spectroscopy. CMFs obtained after a deposition time of 5 h have a diameter of 5-10 μm and a length of a few hundred micrometres. In the deposition process, Fe-Si-O-C droplets were first formed on the surface of SiO2 particles, and then carbon fibres grew as a result of the catalysis of the droplets. Carbon fibres have the higher graphitic structures when the deposition process is conducted at 1200°C. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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Plný text