Preparation and Characterization of Iodine‐doped Multi‐wall Carbon Nanotubes
- Conference date: 26–28 December 2007
- Location: Kuala Terengganu (Malaysia)
Multi‐wall carbon nanotubes (MWCNTs) were synthesized by thermal chemical vapor deposition (CVD) and were intercalated with iodine at several different temperatures. Iodine doping was achieved by immersing the nanotubes in molten iodine. The sample produced was characterized by means of infrared IR as a point to the presence of covalent C‐I bonds in the sample with retention of the ‐hybridizated carbon atoms. For all samples doped at different temperatures, the C‐I bonding happen to occur based on IR spectra which was indicated by peaks around X‐ray diffraction (XRD) characterization was used to study on the crystallinity of the undoped and iodine‐doped MWCNTs. It was shown that, iodine‐doping of the MWCNTs gives significant changes in the XRD spectra compared to the undoped MWCNTs. With various doping temperature, the XRD spectra shows the different crystallinity.
- Carbon nanotubes
- X-ray diffraction
- Chemical vapor deposition
- Infrared spectra
- Chemical bonds
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