Formation of Multi-Walled Carbon Nanotubes by Catalytic Chemical Vapour Deposition Using Zeolite Encapsulated Nanocrystalline Cobalt Oxides

被引：0

作者：

Zhao, Wei ^{[1
]}

Lee, Mi Jai ^{[2
]}

Kim, Hyung Tae ^{[2
]}

Kim, Yoo Jin ^{[2
]}

Gong, Jianghong ^{[3
]}

Kim, I. K. Jin ^{[1
]}

机构：

[1] Hanseo Univ, Dept Mat Sci & Engn, Inst Proc & Applicat Inorgan Mat, Seosan City 356706, Chungnam, South Korea

[2] Korea Inst Ceram Engn & Technol, Engn Ceram Ctr, Inchon 46784, Kyoung Gi Do, South Korea

[3] Tsinghua Univ, Dept Mat Sci & Engn, Beijing 100084, Peoples R China

来源：

ASIAN JOURNAL OF CHEMISTRY | 2011年 / 23卷 / 12期

基金：

新加坡国家研究基金会;

关键词：

Multi-walled carbon nanotubes; Chemical vapour deposition; Zeolite; Ion-exchange; Catalyst; SINGLE; SPECTROSCOPY; ACETYLENE; DIAMETER; CCVD; CVD;

D O I：

暂无

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

High yield multiwalled carbon nanotubes (MWNTs) were synthesized on Co-suppoted faujasite-type zeolite (FAU) by catalytic chemical vapour deposition (CCVD) using acetylene as the carbon source. Well-shaped faujasite-type zeolite (FAU) octahedral crystals of a size of 15 mu m were synthesized by the hydrothermal method in a mother solution which has a composition of 3.5 Na2O : Al2O3: 2.1 SiO2 : 1000 H2O. The effect of the Co content in the zeolite crystals on the synthesis of carbon nanotubes was investigated through high resolution transmission electron microscopy (HRTEM), field emission microscopy (FESEM), thermogravimetic analysis (TGA) and Raman spectroscopy. The inner and outer tube diameters of the synthesized multiwalled carbon nanotubes were in the range of 5.7-11.6 nm and 11.0-30.2 nm, respectively. With increasing Co content supported in the zeolite template, the carbon yield showed a monotonic increasing tendency, reaching 60.4 % when the Co content was up to 11.5 wt%.

引用

页码：5457 / 5460

页数：4

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