Syntheses and characterizations of bismuth nanofilms and nanorhombuses by the structure-controlling solventless method

被引：63

作者：

Chen, Jing

Wu, Li-Ming

Chen, Ling ^{[1
]}

机构：

[1] Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Fujian, Peoples R China

[2] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

来源：

INORGANIC CHEMISTRY | 2007年 / 46卷 / 02期

关键词：

D O I：

10.1021/ic0615067

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Substrate-free bismuth nanofilms with an average thickness of 0.6 nm (sigma = +/- 14.1%) and monodisperse layered Bi nanorhombuses with an average edge length of 21.5 nm (sigma = +/- 14.7%) and thickness of 0.9 nm (sigma = +/- 25.8%) have been successively synthesized by structure-controlling solventless thermolysis from a new layered bismuth thiolate precursor with a 31.49 angstrom spacing. The morphologies result from self-control at an atomic level by the layered Bi(SC12H25)(3) crystal structure. The formation of the Bi nanofilm intermediate provides significant substantiation for this synthesis method, and detailed evidence on the conversion progress has been obtained. Both the films and the rhombuses have been characterized by X-ray powder diffraction (XRD), transmission electron microscopy (TEM), energy-dispersive X-ray spectrometry (EDX), high-resolution TEM (HRTEM), and atomic force microscopy (AFM) measurements. Special UV-vis electronic absorption spectra of the nanoproducts have been studied.

引用

页码：586 / 591

页数：6

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