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

来源：

MATERIALS LETTERS | 2011年 / 65卷 / 08期

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

页码：1231 / 1233

页数：3

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