Facile one-step-synthesis of carbon wrapped copper nanowires by thermal decomposition of Copper(II)-acetylacetonate

被引:23
作者
Haase, D. [1 ]
Hampel, S. [1 ]
Leonhardt, A. [1 ]
Thomas, J. [1 ]
Mattern, N. [1 ]
Buechner, B. [1 ]
机构
[1] Leibniz Inst Solid State & Mat Res Dresden, PF 270116, D-01171 Dresden, Germany
关键词
acetylacetonate; nanowire; vapor decomposition; copper; X-ray diffraction;
D O I
10.1016/j.surfcoat.2007.04.014
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Carbonwrapped copper nanowires with outer diameters between 100 and 200 nm and lengths ranging from 500 nm up to 10 mu m were synthesized by thermal decomposition of Copper(II)-acetylacetonate in a closed, evacuated quartz ampule. The as-grown material consists of a single crystalline copper core wrapped by amorphous carbon. After a thermal treatment near the melting point of copper the carbon wrapped Cu-cable is transformed into an empty carbon nanotube with a spherical Cu particle attached to the end. Due to nanoscale dimension of this material wires a decrease of the melting point of Cu is observed within the carbon shell. We show that the Cu melts already at a temperature of 800 degrees C. To the best of our knowledge we report for the first time on the emptying of a metal filled carbon nanotube by a thermal treatment. This process is of great importance, e. g. for the application of such nanostructures as nanopipettes or nanocables. Besides, a reversible "filling-emptying process" can be very useful for certain applications. (C) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码:9184 / 9188
页数:5
相关论文
共 14 条
[1]  
Cao M., 2003, CHEM COMMUN, V1884
[2]   Synthesis of carbon-encapsulated nanowires using polycyclic aromatic hydrocarbon precursors [J].
Dai, JY ;
Lauerhaas, JM ;
Setlur, AA ;
Chang, RPH .
CHEMICAL PHYSICS LETTERS, 1996, 258 (5-6) :547-553
[3]   Synthesis of copper-core/carbon-sheath nanocables by a surfactant-assisted hydrothermal reduction/carbonization process [J].
Deng, Bin ;
Xu, An-Wu ;
Chen, Guang-Yi ;
Song, Rui-Qi ;
Chen, Liuping .
JOURNAL OF PHYSICAL CHEMISTRY B, 2006, 110 (24) :11711-11716
[4]   A liquid-Ga-fitted carbon nanotube: A miniaturized temperature sensor and electrical switch [J].
Dorozhkin, PS ;
Tovstonog, SV ;
Golberg, D ;
Zhan, JH ;
Ishikawa, Y ;
Shiozawa, M ;
Nakanishi, H ;
Nakata, K ;
Bando, Y .
SMALL, 2005, 1 (11) :1088-1093
[5]   Carbon nanothermometer containing gallium - Gallium's macroscopic properties are retained on a miniature scale in this nanodevice. [J].
Gao, YH ;
Bando, Y .
NATURE, 2002, 415 (6872) :599-599
[6]  
GOLBERG D, 2007, UNPUB ADV MAT
[7]   Low temperature melting of copper nanorod arrays [J].
Karabacak, T ;
DeLuca, JS ;
Wang, PI ;
Ten Eyck, GA ;
Ye, D ;
Wang, GC ;
Lu, TM .
JOURNAL OF APPLIED PHYSICS, 2006, 99 (06)
[8]   Fabrication and characterization of ultralong Ag/C nanocables, carbonaceous nanotubes, and chainlike β-Ag2Se nanorods inside carbonaceous nanotubes [J].
Ma, Dekun ;
Zhang, Meng ;
Xi, Guangcheng ;
Zhang, Junhao ;
Qian, Yitai .
INORGANIC CHEMISTRY, 2006, 45 (12) :4845-4849
[9]  
Nasibulin AG, 2001, J NANOPART RES, V3, P385
[10]   Obtaining ultra-long copper nanowires via a hydrothermal process [J].
Shi, Y ;
Li, H ;
Chen, LQ ;
Huang, XJ .
SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS, 2005, 6 (07) :761-765