Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 489, Issue 2, Pages 530-534Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2009.09.101
Keywords
Alloy; Bi2Te3; Hyrothermal
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Funding
- Council of Institute of Nano Science and Nano Technology, University of Kashan
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in this paper, based-alloy Bi2Te3 nanostructure with different morphologies was synthesized by a hydrothermal process based on the reaction between Bi(NO3)(3), TeCl4, and KBH4 in water at various conditions. The products were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared spectrometry (FT-IR), X-ray photoelectron spectrum and inductively coupled plasma-atomic emission spectrometer and transmission electron microscopy (TEM). The result shows that the Bi2Te3 crystals have diameters ranging from 20 to 25 nm with high purity. Other factors, such as the reaction time, the different capping agent and the sort of reductant also have influence on the morphology of the final products to some extent. By variation of reductant, conversion rode-like to flower-like was obtained. Organic ligands play a manifold role in the formation of the chainlike nanostructures as both coordinate ligand and architecture template, and a possible formation mechanism is proposed. (C) 2009 Elsevier B.V. All rights reserved.
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