Direct growth of carbon microfibres on SiO2 particles by chemical vapour deposition from ethanol. (1st October 2018)

• Record Type: Journal Article
• Authors: Wang, Feng; Qin, Xiaofang; Yang, Lixia; Gao, Shanmin; Wang, Qingyao; Yang, Zhenglong
• Is Part Of: Micro & nano letters. Volume 13:Number 10(2018)
• Page Start: 1453
• Page End: 1456
• Publication Date: 2018-10-01
• Subjects: transmission electron microscopy -- X‐ray diffraction -- carbon fibres -- Raman spectra -- scanning electron microscopy -- catalysis -- catalysts -- chemical vapour deposition -- silicon compounds; carbon microfibres -- ethanol -- catalytic chemical vapour deposition -- carbon precursor -- catalyst precursor -- carrier gas -- X‐ray diffraction -- high‐resolution transmission electron microscopy -- surface morphology -- scanning electron microscopy -- Raman spectroscopy -- graphitic structures -- temperature 1200.0 degC -- time 5.0 hour -- size 100.0 mum -- size 5 mum to 10 mum -- SiO2 -- C; Nanotechnology -- Periodicals; Nanostructures -- Periodicals; Microtechnology -- Periodicals; 620.5
• DOI: 10.1049/mnl.2018.5068
• Languages: English
• ISSNs: 1750-0443

Abstract

Abstract : 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.