A novel room temperature method to nanocrystalline Ag2Se

被引：29

作者：

Wang, WZ

Geng, Y

Qian, YT ^{[1
]}

Ji, MR

Xie, Y

机构：

[1] Univ Sci & Technol China, Struct Res Lab, Hefei 230026, Anhui, Peoples R China

[2] Univ Sci & Technol China, Dept Chem, Hefei 230026, Anhui, Peoples R China

来源：

MATERIALS RESEARCH BULLETIN | 1999年 / 34卷 / 06期

基金：

中国国家自然科学基金;

关键词：

chalcogenides; nanostructures; chemical synthesis; electron microscopy; photoelectron spectroscopy;

D O I：

10.1016/S0025-5408(99)00083-5

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Nanocrystalline Ag2Se was synthesized at room temperature through the reaction of AgNO3, Se, and KBH4 in pyridine. The products were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS). TEM revealed that the as prepared Ag2Se grains were homogeneous and spherical, and their average size was about 25 nm. XPS analysis showed that the purity was good. Different solvent media were tested, and pyridine was found to be the most suitable one. The possible mechanism of the formation of Ag2Se grains is proposed. This novel mild method will be extended to prepare other nanocrystalline chalcogenides at room temperature. (C) 1999 Elsevier Science Ltd.

引用

页码：877 / 882

页数：6

共 23 条

[1]

AKOTO T, Patent No. 04171681

[2]

[Anonymous], MATER RES SOC SYMP P

[3]

CAMBI L, 1968, CHIM IND-MILAN, V50, P94

[4] Pyridineselenolate complexes of copper and indium: Precursors to CuSex and In2Se3 [J].