Magnetic separation of Fe catalyst from single-walled carbon nanotubes in an aqueous surfactant solution

J.G. Wiltshire; L.J. Li; A.N. Khlobystov; C.J. Padbury; G.A.D. Briggs; R.J. Nicholas

doi:10.1016/j.carbon.2004.12.006

期刊文章

Magnetic separation of Fe catalyst from single-walled carbon nanotubes in an aqueous surfactant solution

J.G. Wiltshire, L.J. Li, A.N. Khlobystov, C.J. Padbury, G.A.D. Briggs 和 R.J. Nicholas

Carbon, 卷.43(6), 頁碼.1151-1155

2005

DOI: https://doi.org/10.1016/j.carbon.2004.12.006

摘要

Carbon nanotubes

Catalyst

Magnetic properties

Materials Chemistry

We report an efficient technique to separate ferromagnetic catalyst particles from an aqueous surfactant solution of single-walled carbon nanotubes (SWNTs) by the use of a 1.3 T permanent magnet. High resolution transmission electron microscopy (HRTEM) demonstrates that SWNTs are coated with a surfactant layer that stabilises the aqueous dispersions of SWNTs. The residual quantities of Fe catalyst (∼3%) can be effectively removed from a colloid solution of SWNTs in a magnetic field while absorbance spectra of the initial and purified solutions show that the nanotube diameter distribution remains unchanged. © 2005 Elsevier Ltd. All rights reserved.

指標

1 檢視次數

詳細資料

題名: Magnetic separation of Fe catalyst from single-walled carbon nanotubes in an aqueous surfactant solution
創作者：: J.G. Wiltshire (作者) - University of Oxford
L.J. Li (作者) - University of Oxford
A.N. Khlobystov (作者) - University of Oxford
C.J. Padbury (作者) - University of Oxford
G.A.D. Briggs (作者) - University of Oxford
R.J. Nicholas (作者) - University of Oxford
學術資源類型: 期刊文章
出版日期: 2005
出版資訊: Carbon, 卷.43(6), 頁碼.1151-1155
語言: 英語

Magnetic separation of Fe catalyst from single-walled carbon nanotubes in an aqueous surfactant solution

摘要

相關連結

指標

詳細資料

National Tsing Hua University 社交媒體