Nanoparticles Produced by Laser Ablation of HfS3 in Liquid Medium: Inorganic Fullerene-Like Structures of Hf2S

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• 作者：Manashi Nath ; C. N. R. Rao ; Ronit Popovitz-Biro ; Angi Albu-Yaron ; and Reshef Tenne
• 刊名：Chemistry of Materials
• 出版年：2004
• 出版时间：June 1, 2004
• 年：2004
• 卷：16
• 期：11
• 页码：2238 - 2243
• 全文大小：518K
• 年卷期：v.16,no.11(June 1, 2004)
• ISSN：1520-5002

文摘

Inorganic fullerene-like structures (IF) of the layered hafnium sulfide, Hf₂S, have beensynthesized by the laser ablation of HfS₃ in tert-butyl disulfide medium. Apart from theHf₂S IFs exhibiting quasi-spherical as well as faceted nested-shell geometries, quasi-sphericalnanoparticles of HfS were observed by this means. Whereas Hf₂S has anti-NbS₂ structurewith S layers sandwiched between two Hf layers, HfS has the nonlayered WC-type structure.The nanoparticles of HfS show excess sulfur in the core, and they do not possess closed-shell geometry. The mechanism of formation of these nanoparticles has also been discussed.