Growth and characterization of TiC nanorods activated by nickel nanoparticles

被引:44
作者
Liang, CH [1 ]
Meng, GW [1 ]
Chen, W [1 ]
Wang, YW [1 ]
Zhang, LD [1 ]
机构
[1] Chinese Acad Sci, Inst Solid State Phys, Dept Nanostructured Mat & Internal Frict & Defect, Hefei 230031, Anhui, Peoples R China
基金
中国国家自然科学基金;
关键词
TiC nanorods; VLS growth mechanism; nanoparticles; microstructure;
D O I
10.1016/S0022-0248(00)00849-6
中图分类号
O7 [晶体学];
学科分类号
0702 ; 070205 ; 0703 ; 080501 ;
摘要
We report a new method for the synthesis of metallic TiC nanorods by using chemical vapor deposition on mesoporous active carbon embedded with Ni nanoparticles inside the pores. In this process, mesoporous active carbon was used as the source of carbon material, and as a template to generate nanosized catalysts that greatly affect the size of the rods. The vapor-liquid-solid (VLS) growth mechanism may be responsible for the nanorod formation. Transmission electron microscopy (TEM) showed that the resultant nanorods were uniformly several micrometers in length and about 20-70nm in diameter. High-resolution TEM and selected area electron diffraction (SAED) revealled that the TiC nanorods were single crystals with the preferred growth direction [001]. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:296 / 300
页数:5
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