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碳热还原法制备SiC纳米线及其结构表征
引用本文:朱小燕,李培刚,王顺利,刘仁娟,陈建军,唐为华. 碳热还原法制备SiC纳米线及其结构表征[J]. 浙江丝绸工学院学报, 2012, 0(2): 245-248
作者姓名:朱小燕  李培刚  王顺利  刘仁娟  陈建军  唐为华
作者单位:[1]浙江理工大学光电材料与器件中心,杭州310018 [2]浙江理工大学材料工程中心,杭州310018
基金项目:国家自然科学基金项目(50672088,50902123,60806045),国家基础研究项目(973项目)(2010CB933501)
摘    要:采用简单的碳热还原法,以碳粉和Si02微粉分别作为碳源和硅源,在1550℃高温真空气氛箱式炉中制备SiC纳米线。并利用X射线衍射(XI国)、扫描电镜(SEM)和透射电镜(TEM)、傅里叶变换红外(FTIR)等测试手段对反应产物进行组分、形貌和结构表征。研究结果表明:产物为直线六棱柱形状的β-SiC纳米线,直径在50~300nm之间,纳米线内部含有较多的堆垛层错;纳米线主要以气-固(VS)机制生长。

关 键 词:碳化硅  纳米线  碳热还原  气-固机制

Synthesis and Characterization of SiC Nanowires Using Carbon-Thermal Reduction
ZHU Xiao-yan,LI Pei-gang,WANG Shun-li,L IU Ren-juan,CHEN J ian-jun,TANG Wei-hua. Synthesis and Characterization of SiC Nanowires Using Carbon-Thermal Reduction[J]. , 2012, 0(2): 245-248
Authors:ZHU Xiao-yan  LI Pei-gang  WANG Shun-li  L IU Ren-juan  CHEN J ian-jun  TANG Wei-hua
Affiliation:(Zhejiang Sci-Tech University, a. Center for Optoelectronics Materials and Devices; b. Center for Material Engineering, Hangzhou 310018, China)
Abstract:SiC nanowires are synthesized via the reaction between carbon powder and silicon dioxide powder by a simple carbon-thermal reduction in high-temperature vacuum furnace at 1550 ~C. X-ray dif- fraction (XRD), Scanning electron microscopy (SEM) and transmission electron microscopy (TEM), Fourier transform infrared spectrometer (FTIR) are employed to characterize the obtained product. The β- SiC nanowires experience a beeline hexagonal section and diameters in the range of 50 -300 nm. A high stacking faults density exists in the nanowires. The growth mechanism of the nanowires is considered to involve a vapor-solid (VS) process.
Keywords:silicon carbon  nanowires  carbon-thermal reduction  vapor-solid (VS) mechanism
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