Journal
CRYSTENGCOMM
Volume 14, Issue 6, Pages 1925-1928Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2ce06436g
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Funding
- National Natural Science Foundation of China [51171071, 50971065, 50531030]
- National Basic Research Program of China (973 Program) [2012CB619600]
- Jilin University
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Spherical NbB2-x particles were prepared by increasing the intrinsic B/Nb stoichiometry (x) during self-propagating high-temperature synthesis. Because of the strong anisotropy of the chemical bonding, the shapes of the hexagonal-structured transition metal diborides are generally reported as a hexagonal plate and prism, and this is the first time for the hexagonal-structured transition metal diborides to display the spherical morphology. Moreover, this paper suggested a technical and theoretical approach to synthesize the spherical particles for the compounds with wide stoichiometric ranges.
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