Acetylacetone-Directed Controllable Synthesis of Bi(2)S(3) Nanostructures with Tunable Morphology

作者：Zhou Hongyang; Xiong Shenglin; Wei Lingzhi; Xi Baojuan; Zhu Yongchun; Qian Yitai^*

来源：Crystal Growth & Design, 2009, 9(9): 3862-3867.

DOI：10.1021/cg801405e

Uniform 5 mu m Bi(2)S(3) microspheres and 8 mu m microflowers were solvothermally synthesized in acetylacetone solution through thermolysis of the Bi(3 )-dithizone complex without. any templates or surfactants. Bi(2)S(3) microspheres composed of nanorods with a diameter of 20-40 nm were synthesized at 180 degrees C for 12 h. In similar conditions at 240 degrees C for 3 days, micronowers composed of nanowires with lengths up to several micrometers and diameter of 20-40 nm were obtained. Field-emission scanning electron microscopy (FESEM) showed in the initial stage in the formation process that smooth spherical cores were observed, then on the surface of the cores nanoparticles appeared, and finally nanorods or nanowires grew out and microspheres and microflowers formed. Electrochemical experiments using Bi(2)S(3) in a lithium ion battery indicated that the first discharge capacity of Bi(2)S(3) microflowers could reach about 148 mA h g(-1).

• 出版日期2009-9
• 单位中国科学技术大学