Year: 2008
Type: article
Abstract: In order to synthesize Bi 2 Se 3 nanopowders by a solvothermal synthesis method, ethylenediamine, dimethylformamide, acetone, absolute ethanol, and deionized water were respectively used as a solvent, using BiCl 3 and elemental Se powders as starting materials and KBH 4 as a reductant at 180 o C for different times.X-ray diffraction was used for examining the phase composition of the products.The results showed that pure Bi 2 Se 3 nanopowders were successfully synthesized only when deionized water was used as the solvent.Transmission electron microscopy observation revealed that the nanopowders consisted of big polygonal nanosheets and small irregular nanoparticles.The formation mechanism of the Bi 2 Se 3 nanosheets and nanoparticles was proposed.
Source: The Open Crystallography Journal
Authors: K. F. Cai, L. Wang, J. L. Yin, C. W. Zhou
Institution: Tongji University
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W2051354265