用d族和f族金属氯化物以及金属纳米线填充单壁碳纳米管。

Filling single-wall carbon nanotubes with d- and f-metal chloride and metal nanowires.

作者信息

Satishkumar B C, Taubert A, Luzzi D E

机构信息

Laboratory for Research on Structure of Matter, Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, Pennsylvania, USA.

出版信息

J Nanosci Nanotechnol. 2003 Feb-Apr;3(1-2):159-63. doi: 10.1166/jnn.2003.181.

DOI:10.1166/jnn.2003.181

PMID:12908245

Abstract

Nanowires of magnetic metals (Fe, Co, Ho, Gd) have been synthesized inside the hollow interiors of single-wall carbon nanotubes (SWNTs) by filling SWNTs with precursor metal chlorides and subsequent reduction. SWNTs have been filled by either the melt-phase sealed-tube reaction or a solution-phase method. Among the metal chlorides investigated in this study, HoCl3 and GdCl3 filled the SWNTs to a significantly higher extent. The nanowires have been imaged by transmission electron microscopy (TEM), high-resolution transmission electron microscopy, and scanning transmission electron microscopy (STEM). X-ray energy dispersive spectroscopy carried out in conjunction with TEM and STEM confirmed the presence of metal chloride and metal nanowires.

摘要

通过用金属氯化物前驱体填充单壁碳纳米管（SWNTs）并随后进行还原，在单壁碳纳米管的中空内部合成了磁性金属（铁、钴、钬、钆）纳米线。SWNTs已通过熔融相密封管反应或溶液相方法进行填充。在本研究中所研究的金属氯化物中，HoCl3和GdCl3对SWNTs的填充程度要高得多。已通过透射电子显微镜（TEM）、高分辨率透射电子显微镜和扫描透射电子显微镜（STEM）对纳米线进行成像。结合TEM和STEM进行的X射线能量色散光谱证实了金属氯化物和金属纳米线的存在。