用于制备优质单壁碳纳米管管束的MgO 负载Fe<sub>3</sub>O<sub>4</sub> 纳米粒子的合成

Wei-Wen Liu; Azizan Aziz; Siang-Piao Chai; Abdul Rahman Mohamed; Ching-Thian

doi:10.1016/S1872-5805(11)60080-2

用于制备优质单壁碳纳米管管束的MgO 负载Fe₃O₄ 纳米粒子的合成

doi: 10.1016/S1872-5805(11)60080-2

1.
School of Materials and Mineral Resources Engineering, Engineering Campus, Universiti Sains Malaysia,
14300 Nibong Tebal, Seberang Perai Selatan, Malaysia|
2.
School of Engineering, Monash University, Jalan Lagoon Selatan, 46150 Bandar Sunway, Selangor, Malaysia|
3.
School of Chemical Engineering, Engineering Campus, Universiti Sains Malaysia, 14300 Nibong Tebal, Seberang Perai Selatan, Malaysia

基金项目: Universiti Sains Malaysia under Fundamental Research Grant Scheme (FRGS) (Project: A/C No. 6071002), Research University Grant (RU) (Project: A/C No. 814004), and Skim Penyelidikan Siswazah Universiti Penyelidikan (USM-RU-PRGS) (Project: A/C No. 8042015) and USM Fellowship.

详细信息

作者简介:
Wei-Wen Liu（1978-）, 男, 博士生|主要从事碳纳米管的研究. E-mail: vwenliu@yahoo.com

通讯作者:
Azizan Aziz. Tel: +60 4 5996103, Fax: +60 4 5941011

中图分类号: TB 383　　
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出版历程
- 收稿日期: 2010-11-21
- 录用日期: 2011-09-08
- 修回日期: 2011-08-12
- 刊出日期: 2011-08-20

Preparation of iron oxide nanoparticles supported on magnesium oxide for producing high-quality single-walled carbon nanotubes

1.
School of Materials and Mineral Resources Engineering, Engineering Campus, Universiti Sains Malaysia,
14300 Nibong Tebal, Seberang Perai Selatan, Malaysia|
2.
School of Engineering, Monash University, Jalan Lagoon Selatan, 46150 Bandar Sunway, Selangor, Malaysia|
3.
School of Chemical Engineering, Engineering Campus, Universiti Sains Malaysia, 14300 Nibong Tebal, Seberang Perai Selatan, Malaysia

Funds: Universiti Sains Malaysia under Fundamental Research Grant Scheme (FRGS) (Project: A/C No. 6071002), Research University Grant (RU) (Project: A/C No. 814004), and Skim Penyelidikan Siswazah Universiti Penyelidikan (USM-RU-PRGS) (Project: A/C No. 8042015) and USM Fellowship.

More Information

Author Bio:
Wei-Wen Liu（1978-）, male, Doctor Candidate, engaged in the research of carbon nanotubes. E-mail: vwenliu@yahoo.com

Corresponding author: Azizan Aziz. Tel: +60 4 5996103, Fax: +60 4 5941011

摘要

摘要: 采用沉淀方法制备了直径分布狭窄的均匀Fe₃O₄纳米颗粒。Fe₃O₄纳粒形体几近一致，平均粒径为10.33nm±2.99nm（平均粒径±标准偏差）。在超声作用下将MgO纳米颗粒分散在一定量Fe₃O₄纳米颗粒的水溶液中获得MgO负载Fe₃O₄的纳米颗粒。以甲烷为碳源，Fe₃O₄/MgO 为催化剂，经化学气相沉积，在Fe₃O₄纳粒上制得了大量直径近乎均匀的单壁碳纳米管（SWCNTs）束。TEM显示：SWCNTs的平均直径1.22nm。热重分析显示：样品在400℃～600℃温度区间失重量约19%。拉曼光谱显示：SWCNTs 的I_D/I_G的强度比为0.03，表明采用Fe₃O₄/MgO催化剂可制得高石墨化程度的单壁碳纳米管。
- 单壁碳纳米管,化学气相沉积,电子显微镜,拉曼光谱
Abstract: Fe₃O₄ nanoparticles with a narrow diameter distribution having an average diameter of 10.33nm±2.99nm (average diameter±standard deviation) were prepared by a precipitation method. The Fe₃O₄ nanoparticles were supported on MgO by mixing the MgO nanopowder with the required amount of Fe₃O₄ nanoparticles in water under extensive sonication. Single-walled carbon nanotubes (SWCNTs) were synthesized by the chemical vapor deposition (CVD) of methane over the Fe₃O₄/MgO catalyst. Transmission electron microscopy showed that a large number of SWCNT bundles of nearly uniform diameter were produced by the CVD method. The average diameter of the produced SWCNTs was ca. 1.22nm. Thermogravimetric analysis showed that the weight loss was approximately 19% by oxidation of carbon in the temperature range of 400-680℃. The ratio of the intensity of the D-band to the G-band was 0.03, indicating that the SWCNTs were well-graphitized.
- Single-walled carbon nanotubes, Chemical vapor deposition, Electron microscopy, Raman spectroscopy