Title of article :
Purification and characterization of double-wall carbon nanotubes synthesized by catalytic chemical vapor deposition on mesoporous silica
Author/Authors :
Ramesh، نويسنده , , P. and Okazaki، نويسنده , , T. and Sugai، نويسنده , , T. and Kimura، نويسنده , , J. and Kishi، نويسنده , , N. and Sato، نويسنده , , K. and Ozeki، نويسنده , , Y. and Shinohara، نويسنده , , H.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2006
Pages :
5
From page :
408
To page :
412
Abstract :
Double-wall carbon nanotubes (DWNTs) have been selectively synthesized by catalytic chemical vapor deposition of alcohol over Fe/Co loaded mesoporous silica. The as-grown carbon nanotubes are purified using a multi-step process involving heat treatment in air followed by alkali and acid treatments. The nanotubes are characterized as-grown and after each step of the purification stage by thermo-gravimetric analysis (TGA), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and Raman spectroscopy. It is observed that most of the mesoporous silica and metal particles have been removed from the as-grown nanotubes by these treatments. The carbon content of the nanotube material obtained after the purification is found to be more than 90 wt%.
Journal title :
Chemical Physics Letters
Serial Year :
2006
Journal title :
Chemical Physics Letters
Record number :
1917408
Link To Document :
بازگشت