Preparation and structure of carbon encapsulated copper nanoparticles

被引：39

作者：

Hao, Chuncheng ^{[1
]}

Xiao, Feng ^{[1
]}

Cui, Zuolin ^{[1
]}

机构：

[1] Qingdao Univ Sci & Technol, Shandong Key Lab Nanostruct Mat, Qingdao 266042, Peoples R China

来源：

JOURNAL OF NANOPARTICLE RESEARCH | 2008年 / 10卷 / 01期

关键词：

arc discharge; nanoparticle; carbon encapsulated copper; plasma method; nanostructure;

D O I：

10.1007/s11051-007-9218-6

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Carbon-encapsulated copper nanoparticles were synthesized by a modified arc plasma method using methane as carbon source. The particles were characterized in detail by transmission electron microscope, high-resolution transmission electron microscopy, selected-area electron diffraction, X-ray diffraction, thermogravimetric and differential scanning calorimetry. The encapsulated copper nanoparticles were about 30 nm in diameter with 3-5 nm graphitic carbon shells. The outside graphitic carbon layers effectively prevented unwanted oxidation of the copper inside. The effect of the ratio of He/CH4 on the morphologies and the formation of the carbon shell were investigated.

引用

页码：47 / 51

页数：5

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