Abstract This paper reports that the large-scale single crystalline boron carbide nanobelts have been fabricated through a simple carbothermal reduction method with B/B$_{2}$O$_{3}$/C/Fe powder as precursors at 1100${^\circ}$C. Transmission electron microscopy and selected area electron diffraction characterizations show that the boron carbide nanobelt has a B$_{4}$C rhomb-centred hexagonal structure with good crystallization. Electron energy loss spectroscopy analysis indicates that the nanobelt contains only B and C, and the atomic ratio of B to C is close to 4:1. High resolution transmission electron microscopy results show that the preferential growth direction of the nanobelt is [101]. A possible growth mechanism is also discussed.
Received: 24 March 2008
Revised: 21 April 2008
Accepted manuscript online:
PACS:
81.07.-b
(Nanoscale materials and structures: fabrication and characterization)
(Methods of micro- and nanofabrication and processing)
Fund: Project supported by the National
863 (Grant No 2007AA03Z305) and 973 (Grant No 2007CB935503) program,
the National Science Foundation of China (Grant Nos 60571045,
60620120443, Guo-JI He-Zuo).
Cite this article:
Bao Li-Hong (鲍丽宏), Li Chen (李 晨), Tian Yuan (田 园), Tian Ji-Fa (田继发), Hui Chao (惠 超), Wang Xing-Jun (王兴军), Shen Cheng-Min (申承民), Gao Hong-Jun (高鸿钧) Single crystalline boron carbide nanobelts: synthesis and characterization 2008 Chin. Phys. B 17 4247
Altmetric calculates a score based on the online attention an article receives. Each coloured thread in the circle represents a different type of online attention. The number in the centre is the Altmetric score. Social media and mainstream news media are the main sources that calculate the score. Reference managers such as Mendeley are also tracked but do not contribute to the score. Older articles often score higher because they have had more time to get noticed. To account for this, Altmetric has included the context data for other articles of a similar age.
