AlB12纳米棒的制备与表征
收稿日期: 2009-12-09
修回日期: 2010-02-16
网络出版日期: 2010-07-19
基金资助
国家自然科学基金(50972046); 河南省科技厅科技计划项目(082300410050, 092300410209, 09300410207); 河南省教育厅自然科学研究资助计划项目(2010A140015); 信阳师范学院青年骨干教师资助计划项目
Synthesis and Characterization of AlB12 Nanorods
Received date: 2009-12-09
Revised date: 2010-02-16
Online published: 2010-07-19
许军旗, 王艳蕊, 赵彦明, 余本海, 罗永松, 孙海斌 . AlB12纳米棒的制备与表征[J]. 无机材料学报, 2010 , 25(8) : 857 -859 . DOI: 10.3724/SP.J.1077.2010.00857
Chemical vapor deposition (CVD) method was utilized to synthesize single-crystal AlB12 nanorods on Si substrates in the high temperature horizontal furnace under H2 and Ar atmosphere, using Al powders and BCl3 gas as precursors without any catalysts. The morphology, crystal structures and components of the AlB12 were examined by scanning electron microscope (SEM), high-resolution transmission electron microscope (HRTEM), selected-area electron diffraction(SAED) and energy disperse spectrometer (EDS). SEM shows that the as-synthesized nanowires with the diameter ranging from 100nm to 350 nm and length ranging from several nanometers to several micrometers. HRTEM, SAED, and EDS reveal that the AlB12 nanorods are crystals elongated along the [020] direction. And growth mechanism based on the self-catalyst process is proposed for the formation of the AlB12 nanorods.
Key words： AlB12; nanorods; boron-riched compounds
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