We report the formation of chromium clusters on the outer walls of single-walled carbon nanotubes (SWNTs). The clusters were obtained by reacting purified SWNTs with chromium hexacarbonyl in dibutyl ether at 100°C. The functionalized SWNTs were characterized by thermogravimetic analysis, XPS, and high-resolution TEM. The curvature of the SWNTs and the high mobility of the chromium moieties on graphitic surfaces allow the growth of the metal clusters and we propose a mechanism for their formation. © 2014 Taylor and Francis Group, LLC.
Bibliographical noteKAUST Repository Item: Exported on 2020-10-01
Acknowledgements: The synthetic work was performed with the financial support of the U.S. Department of Defense/Defense Micro-Electronics Activities under contract H94003-10-2-1003. HRTEM and XPS analyses of the materials were made possible with the financial support from King Abdulaziz University, KSA under grant No. 51-3-1432 / HiCi. Independent XPS measurements were recorded at UCR with an instrument funded by the National Science Foundation under Grant DMR-0958796.
ASJC Scopus subject areas
- Organic Chemistry
- Materials Science(all)
- Atomic and Molecular Physics, and Optics
- Physical and Theoretical Chemistry