Preparation of Carbon Encapsulated Iron Nanoparticles with Very Thin Shells by DC Arc Discharge

被引：0

作者：

崔屾 ^{[1
]}

张丽爽 ^{[1
]}

崔兰 ^{[2
]}

张帆 ^{[1
,3
]}

林奎 ^{[2
]}

靳凤民 ^{[4
]}

李玲 ^{[1
]}

Sayyar Ali Shah ^{[1
]}

机构：

[1] Department of Chemistry, School of Science, Tianjin University

[2] Center of Analysis, Tianjin University

[3] Tianjin Cement Industry Design and Research Institute Co. Ltd.

[4] School of Chemical Engineering and Technology, Tianjin University

来源：

Transactions of Tianjin University | 2015年 / 21卷 / 01期

关键词：

carbon encapsulated iron nanoparticle; DC arc discharge; shell structure; magnetic property;

D O I：

暂无

中图分类号：

O461.2 [各类型放电];

学科分类号：

0809 ; 080901 ;

摘要：

Carbon encapsulated iron nanoparticles(CEINPs) with very thin shells and good core-shell structures were prepared by DC arc discharge at argon intake temperature(AIT) of 800 ℃. The results of high resolution transmission electron microscope(HRTEM), energy dispersive X-ray(EDX) spectroscope, X-ray diffraction(XRD), and X-ray photoelectron spectroscope(XPS) characterizations on the product B show that the thickness of the carbon shells of CEINPs in the product B is in the range of ca. 0.5—5.3 nm, i. e., which can be as thin as only two layers of graphite. The average diameter of the CEINPs is about 24. 7 nm. The total content of Fe element in the product B is 77.0 wt%. The saturation magnetization(Ms) and coercivity(Hc) of the product B are 107.4 emu/g and 143 Oe, respectively. The formation of the CEINPs in the product B is discussed briefly.

引用

页码：11 / 18

页数：8

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张帆
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李玲
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