Paper Title:
Study on the Chemical Modification of the Walls of Carbon Nanotubes by K2Cr2O7 and HNO3
  Abstract

CNTs was opened and surface modified by K2Cr2O7 and HNO3. The ratio of CNTs weight loss was used to show the effect of oxidation and the morphologies of CNTs was observed by TEM and IR. The results showed that the concentration of K2Cr2O7, oxidation temperature and oxidation time all affected the oxidation results. Among these three factors, oxidation temperature produced the largest effect; As the CNTs was oxidized, the wall of CNTs was corroded firstly and made the wall of CNTs thinner, then the curved-site of CNTs was attacked by oxidant and made the CNTs break in several section. So the solution would enter into the cavity of CNTs. Hydrophilic groups would be introduced in the inner and outer surface of CNTs with the oxidation reaction continuing. It would be good to the compatibility of CNTs with other materials.

  Info
Periodical
Advanced Materials Research (Volumes 197-198)
Edited by
Huaiying Zhou, Tianlong Gu, Daoguo Yang, Zhengyi Jiang, Jianmin Zeng
Pages
571-574
DOI
10.4028/www.scientific.net/AMR.197-198.571
Citation
M. W. Wang, J. Wang, J. W. Qu, "Study on the Chemical Modification of the Walls of Carbon Nanotubes by K2Cr2O7 and HNO3", Advanced Materials Research, Vols. 197-198, pp. 571-574, 2011
Online since
February 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Ju An Zhao
Abstract:A multi-layer coating SiC/ Si - MoSi2 /MoSi2 with good oxidation resistance has been developed by using the slurry-sintering method on the...
1
Authors: Sheng Rui Xu, Qin Shuai, Jin Hua Cheng, Xiao Ge Wang
Abstract:A new catalyst of gold supported on nanometal oxide for oxidation of SO2 was developed. Deposition-precipitation method was used to prepare...
65
Authors: Lin Bo Li, Juan Qin Xue, Tao Hong, Jun Yang, Xing Wang
Abstract:The separation of cobalt from zinc sulfate solutions by oxidation-precipitation process using peroxy-monosulfuric acid as oxidant has been...
145
Authors: Jin Liu, Dong Wei Li, Shao Jian Zhang, Dou Li, Lin Yu
Sustainable Materials and Applications
Abstract:The bioleaching effect of different concentrations of silver ion catalysis on chalcopyrite tailings has been investigated in shaking flasks....
635
Authors: Wu Jie Ge, Qun Shao, Hui Xu, Ya Li Wan
Chapter 14: Chemical Thermodynamics and Kinetics
Abstract:The paper studied the change of the coal characteristics based on the influence of lignite naturally oxidated in air. The original lignite...
2797