Synthesis of multiwall carbon nanotubes by chemical vapor deposition of ferrocene alone |
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| Authors: | Ravi Bhatia V. Prasad |
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| Affiliation: | 1. Delft University of Technology, Delft Institute of Microsystems and Nanotechnology, Faculty of Electrical Engineering, Mathematics and Computers Science, Laboratory of Electronic Components, Technology and Materials, Feldmannweg 17, 2628 CT Delft, The Netherlands;2. Delft University of Technology, Kavli Institute of Nanoscience, Faculty of Applied Physics, National Centre for High Resolution Electron Microscopy, Lorentzweg 1, 2628 CJ Delft, The Netherlands;3. Delft University of Technology, Delft Institute of Microsystems and Nanotechnology, Feldmannweg 17, 2628 CT Delft, The Netherlands;1. Materials Research Centre, Indian Institute of Science, Bangalore, 560012, India;2. Department of Chemical Engineering, Indian Institute of Science, Bangalore, 560012, India;1. Process Development Division, Egyptian Petroleum Research Institute, Nasr City, PO Box 11727, Cairo, Egypt;2. EPRI-Nanotechnology Center, Egyptian Petroleum Research Institute, Nasr City, PO Box 11727, Cairo, Egypt;1. Laboratory of Ceramics Materials, LACER, Department of Materials, Federal University of Rio Grande do Sul, Brazil;2. Institute of Physics, Federal University of Rio Grande do Sul, CP 15051, 91501-970 Porto Alegre, Brazil;1. College of Engineering, Peking University, Summer Palace Road 5, Beijing 100871, PR China;2. School of Chemistry and Chemical Engineering, Nanjing University, Hankou Road 22, Nanjing 210093, PR China;3. National Institute of Clean-and-Low-Carbon Energy, P.O. Box 001 Shenhua NICE, Future Science & Technology Park, Changping District, Beijing 102209, PR China |
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| Abstract: | ![]()
Multiwall carbon nanotubes (MWNTs) filled with Fe nanoparticles (NPs) have been synthesized by thermal chemical vapor deposition of ferrocene alone as the precursor. The MWNTs were grown at different temperatures: 980 and 800 °C. Characterization of as-prepared MWNTs was done by scanning and transmission electron microscopy, and X-ray diffraction. The transmission electron microscopy study revealed that Fe NPs encapsulated in MWNTs grown at 980 and 800 °C are spherical and rod shaped, respectively. Room-temperature vibrating sample magnetometer studies were done on the two samples up to a field of 1 T. The magnetization versus magnetic field loop reveals that the saturation magnetization for the two samples varies considerably, almost by a factor of 4.6. This indicates that Fe is present in different amounts in the MWNTs grown at the two different temperatures. |
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