期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 581, 期 -, 页码 128-132出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2013.07.051
关键词
Boron carbide nanoflakes; Surface chemistry; Electrical property
资金
- NSFC [51002238, 51172205]
- Natural Science Foundation of Zhejiang Province [LR13E020002, LY13E020010]
- Qianjiang Talent Project [2010R10029]
- 'Qianjiang Scholars' program
- SRF for ROCS, State Education Ministry [2010609]
Boron carbide nanoflakes have been successfully synthesized by a facile and cost-effective bamboo-based carbon thermal reduction method. The majority of the boron carbide products exhibited a flake-like morphology with lateral dimensions of 0.5-50 mu m in width and more than 50 mu m in length, while the thickness was less than 150 nm. The structural, morphological, and elemental analyses demonstrated that these nanoflakes grew via the fluoride-assisted vapor-liquid-solid combined with vapor-solid growth mechanism. The corresponding growth model was proposed. In addition, the electrical property of individual boron carbide nanoflake was investigated by an in situ two point method inside a transmission electron microscope. The resistivity of boron carbide nanoflakes was measured to be 0.14 M Omega cm. (C) 2013 Elsevier B.V. All rights reserved.
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