کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1620960 1005741 2010 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Hydrothermal preparation and characterization of based-alloy Bi2Te3 nanostructure with different morphology
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Hydrothermal preparation and characterization of based-alloy Bi2Te3 nanostructure with different morphology
چکیده انگلیسی

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.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 489, Issue 2, 21 January 2010, Pages 530–534
نویسندگان
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