多元金属二硫化物纳米管的制备与结构特征

无机材料学报

多元金属二硫化物纳米管的制备与结构特征

李国华^1,2; 曾跃武³; 宋旭春¹; 夏军保¹; 陈卫祥¹; 徐铸德¹

1. 浙江大学化学系杭州 310027; 2. 浙江工业大学化学工程与材料学院, 杭州 310014; 3. 浙江大学分析测试中心, 杭州 310027

收稿日期:2003-04-03 修回日期:2003-04-30 出版日期:2004-05-20 网络出版日期:2004-05-20

Fabrication of Multimetal Disulfide Nanotube and Its Structural Characteristics

LI Guo-Hua^1,2; ZENG Yue-Wu³; SONG Xu-Chun¹; XIA Jun-Bao¹; CHEN Wei-Xiang¹; XU Zhu-De¹

1.Department of Chemistry; Zhejiang University; Hangzhou 310027; China; 2. The School of Chemical Engineering and Material; Zhejiang University of Technology; Hangzhou 310014; China; 3. Analysis central; Zhejiang University; Hangzhou 310027, China

Received:2003-04-03 Revised:2003-04-30 Published:2004-05-20 Online:2004-05-20

摘要/Abstract

摘要： 为解决无机类富勒烯纳米化合物的制备过程中存在的技术问题,本文以二硫化钼和二硫化钨为主要原料,采用了剥离-重新堆垛-结构控制这一技术方法,用正丁基锂将上述二硫化物剥离成单层,通过掺杂将金属锰离子引入反应体系中,以将单层二硫化物重新堆垛起来,并进行结构控制.XRD、TEM、HRTEM结果表明,应用上述方法制备出了真空管状多元金属二硫化物纳米化合物;纳米管为多壁管,其微细结构具双层结构特征;并探讨了其形成机理.

关键词: 多元金属二硫化物, 剥离-重新堆垛-结构控制, 纳米管, 结构特征

Abstract: The fabrication and structure controlling of inorganic fullerene-like nanocompounds have attracted wide
interests in recent years. A new approach of exfoliating-restacking-structure controlling was applied to overcome some technological problems in present
preparation approaches. MoS₂ and WS_₂ powders were used as precursor materials and exfoliated into single layers by butyllithium. The sample
was treated by MnCl₂ solution at 80℃ to introduce Mn²⁺ cations into the reactive system. In this way, the single layer was restacked
and the structure of product could be controlled. The products were characterized by XRD, TEM and HRTEM respectively. XRD results indicate that
multimetal disulfide compounds can be fabricated by this new approach. TEM results show that the morphology of the multimetal disulfide compounds
exhibits hollow-like nanotubes. HRTEM results show that the structure of the hollow-like nanotubes is of double layers. And the substructure of the
inner layer exhibits multi-wall shape. Based on the above results, a possible formation mechanism of hollow multi-wall nanotubes was discussed.

Key words: multimetal disulfide, exfoliating-restacking- structure controlling, nanotube, structural characteristic

中图分类号:

TB383

李国华,曾跃武,宋旭春,夏军保,陈卫祥,徐铸德. 多元金属二硫化物纳米管的制备与结构特征[J]. 无机材料学报.

LI Guo-Hua,ZENG Yue-Wu,SONG Xu-Chun,XIA Jun-Bao,CHEN Wei-Xiang,XU Zhu-De. Fabrication of Multimetal Disulfide Nanotube and Its Structural Characteristics[J]. Journal of Inorganic Materials.

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