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- Ruoff, Rodney S.
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Single-crystal calcium hexaboride nanowires: Synthesis and characterization
- Author(s)
- Xu, TT, Zheng, JG, Nicholls, AW, Stankovich, S, Piner, RD, Ruoff, RS
- Issued Date
- 2004-10
- Citation
- NANO LETTERS, v.4, no.10, pp.2051 - 2055
- Abstract
- Catalyst-assisted growth of single-crystal calcium hexaborlde (CaB6) nanowires was achieved by pyrolysis of diborane (B2H6) over calcium oxide (CaO) powders at 860-900 degreesC and similar to155 mTorr in a quartz tube furnace. TEM electron diffraction and Raman spectroscopy indicate that the nanowires are single-crystal CaB6 and have a preferred [001] growth direction. Analysis of TEM/EDX/EELS data proves the nanowires consist of CaB6 cores and thin (1-2 nm) amorphous oxide shell material. The CaB6 nanowires have diameters of similar to15-40 nm, and lengths of similar to1-10 mum.
- Publisher
- AMER CHEMICAL SOC
- ISSN
- 1530-6984
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