Solvothermal Coordination–Reduction Route to γ-NiSb Nanocrystals at Low Temperature

✍ Scribed by Yi Xie; Jun Lu; Ping Yan; Xuchuan Jiang; Yitai Qian

• Publisher: Elsevier Science
• Year: 2000
• Tongue: English
• Weight: 177 KB
• Volume: 155
• Category: Article
• ISSN: 0022-4596
• DOI: 10.1006/jssc.2000.8889

✦ Synopsis

A very mild synthesis of nanocrystalline -NiSb via a novel solvothermal coordination-reduction process is reported here. The reaction of the mixture of NiCl 2 , antimony, and KBH 4 was carried out in ethylenediamine (en) at 1403C for 24 h. X-ray powder di4raction and transmission electron microscope images show that the products are hexagonal -NiSb phase and well crystallized with an average size of about 15 nm. The reaction proceeds through a metallic nickel intermediate. The morphology of the products was in6uenced markedly by the solvents, and a dendritic crystal of NiSb was obtained in diethylamine. The products were also investigated by UV/vis absorption, photoluminescence, X-ray photoelectron spectra, and Fouriertransform IR.