%C Shah Alam, Selangor
%T Influence of acid and thermal treatments on properties of carbon nanotubes
%A O. Akbarzadeh
%A N.A. Mohd Zabidi
%A B. Abdullah
%A D. Subbarao
%V 832
%P 394-398
%X The application of carbon nanotubes as a catalyst support has received considerable attention recently. The influence of acid and thermal treatments on the properties of multi-walled carbon nanotubes (MWCNTs) is presented in this paper. MWCNTs were treated with 65 wt HNO3 at the 120 °C for 14 h in order to open the caps and introduce functional groups on the MWCNTs. Then thermal treatment was carried out at 600, 700, 800, 900 °C for 3 h in flowing Ar gas in a tubular furnace. The MWCNTs were characterized by N2- adsorption, FESEM and Raman spectroscopy. The thermal treatment resulted in morphological changes of the MWCNTs. The acid and thermal treatments also increased the BET surface areas and pore volumes of the MWCNTs. © (2014) Trans Tech Publications, Switzerland.
%K Acid treatments; BET surface area; Morphological; Morphological changes; Pore volume; Tubular furnaces, Carbon nanotubes; Functional groups; Nanoscience, Heat treatment
%D 2014
%R 10.4028/www.scientific.net/AMR.832.394
%O cited By 9; Conference of 2013 International Conference on Nanoscience and Nanotechnology, NANO-SciTech 2013 ; Conference Date: 1 March 2013 Through 4 March 2013; Conference Code:101772
%J Advanced Materials Research
%L scholars4441