Formation of transition metal cluster adducts on the surface of single-walled carbon nanotubes: HRTEM studies
AuthorsKalinina, Irina V.
Bekyarova, Elena B.
Al-Hadeethi, Yas Fadel
Al-Marzouki, Fahad M.
Yaghmour, Saud Jamil
Haddon, Robert C.
KAUST DepartmentImaging and Characterization Core Lab
Physical Sciences and Engineering (PSE) Division
Advanced Nanofabrication, Imaging and Characterization Core Lab
Materials Science and Engineering Program
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AbstractWe 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.
SponsorsThe 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.
PublisherInforma UK Limited