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Synthesis of spherical NbB2?x particles by controlling the stoichiometry

Author:
Jin, Shenbao   Shen, Ping   Li, Yanjun   Zhou, Dongshuai   Jiang, Qichuan  


Journal:
CrystEngComm


Issue Date:
2012


Abstract(summary):

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.


Page:
1925


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