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Proceedings Paper

Preparation and mechanism of carbon encapsulated Cu nanoparticles
Author(s): Jun Xue; Houkui Xiang; Shuli Pang; Hongqiao Ding; Xuehua Wang; Hong Cao
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Paper Abstract

In recent years, research interests in copper nanoparticles have been increased significantly due to their excellent performance in tribology, catalysis and many other fields. However, their applications have been still limited because the bare nanoparticles are easily oxidized. Therefore, the study of copper nanoparticles encapsulated in carbonaceous shells is an important issue. In this study, the carbon encapsulated copper nanoparticles were prepared using copper nitrate as the metal sources and using sucrose as the carbon sources, through reducing and annealing. The phase, morphology, particle size and structure of as-prepared samples were characterized using X-ray diffraction, field emission transmission electron microscopy, scanning electron microscopy and Raman spectroscopy, respectively. The results indicate that the samples exhibit well core/shell structure, with sphere form and uniform size (50 nm in average). The copper cores consists of polycrystalline particles with fcc structure, whose size varies from 20 nm to 60 nm. The shell is amorphous carbon and its thickness is about 10 nm. In addition, the formation mechanism of carbon encapsulated copper nanoparticles was discussed and presented in the paper.

Paper Details

Date Published: 22 October 2010
PDF: 4 pages
Proc. SPIE 7658, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices for Detector, Imager, Display, and Energy Conversion Technology, 76584U (22 October 2010); doi: 10.1117/12.867770
Show Author Affiliations
Jun Xue, Wuhan Institute of Technology (China)
Wuhan Reseach Institute of Materials Protection (China)
Houkui Xiang, Wuhan Institute of Technology (China)
Shuli Pang, Wuhan Institute of Technology (China)
Hongqiao Ding, Wuhan Institute of Technology (China)
Xuehua Wang, Wuhan Institute of Technology (China)
Hong Cao, Wuhan Institute of Technology (China)


Published in SPIE Proceedings Vol. 7658:
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices for Detector, Imager, Display, and Energy Conversion Technology
Yadong Jiang; Bernard Kippelen; Junsheng Yu, Editor(s)

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