Fabrication of carbon-encapsulated tungsten diselenide nanorods

被引:4
作者
Cao, Kesheng [1 ,2 ]
Li, Changsheng [1 ,2 ]
Yang, Xiaofei [1 ]
Tang, Hua [1 ,2 ]
Song, Haojie [1 ]
Zhang, Rongxian [3 ]
Li, Guowei [1 ]
Wu, Qiong [1 ]
机构
[1] Jiangsu Univ, Sch Mat Sci & Engn, Zhenjiang 212013, Peoples R China
[2] Jiangsu Univ, Jiangsu Key Lab Mat Tribol, Zhenjiang 212013, Peoples R China
[3] Jiangsu Univ, Sch Chem & Chem Engn, Zhenjiang 212013, Peoples R China
基金
国家高技术研究发展计划(863计划);
关键词
Tungsten diselenide; Nanorods; Polymers; X-ray techniques; Raman; Thermal analysis; NANOPARTICLES; SHELL; NANOCRYSTALS;
D O I
10.1016/j.matlet.2011.01.065
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We present the fabrication of carbon-coated tungsten diselenide (WSe2@C) nanorods by a facile one-pot high temperature solid-state reaction in a sealed reactor, using commercially available W and Se powders as precursors as well as maleic anhydride-grafted ethylene-octene copolymer (POE-g-MA) as a carbon source. Microscopic studies including SEM, TEM and HR-TEM confirmed that WSe2 nanorods with an average diameter of 20 nm were encapsulated by carbon layers. As-prepared WSe2@C nanorods were further investigated by XRD and Raman spectra. Thermal analysis of the sealed W-Se-POE-g-MA system was performed in order to understand the chemical reaction of W and Se at high temperature in the presence of POE-g-MA. The formation mechanism of carbon-encapsulated WSe2 nanostructures was then proposed. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码:1231 / 1233
页数:3
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