Abstract
The adsorptions of hydrogen molecule of the Fe − doped pristine and Stone − Wales defected armchair (5,5) single − walled carbon nanotubes (SWCNTs) compared with the pristine SWCNT were investigated by using the density functional theory at the B3LYP/LanL2DZ level. The doping of Fe atom into SWCNTs occurring via an exothermic process was found. The adsorptions of hydrogen molecule on the Fe − doped structures of either perfect or SW defected SWCNTs are stronger than on their corresponding undoped structures. The structural and electronic properties of the pristine and SW defected SWCNTs, their Fe − doped structures and their hydrogen molecule adsorptions are reported.
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Acknowledgments
The authors gratefully acknowledge the Research Affairs, Mahasarakham University, and the Postgraduate Education and Research in Chemistry (PERCH) program, Thailand, for financial support of this research and the facility provided by Supramolecular Chemistry Research Unit and Department of Chemistry, Faculty of Science, Mahasarakham University. The Thailand Research Fund for financial support (Grant No. MRG5180141) to BW is also acknowledged.
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Tabtimsai, C., Keawwangchai, S., Nunthaboot, N. et al. Density functional investigation of hydrogen gas adsorption on Fe−doped pristine and Stone−Wales defected single−walled carbon nanotubes. J Mol Model 18, 3941–3949 (2012). https://doi.org/10.1007/s00894-012-1388-1
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DOI: https://doi.org/10.1007/s00894-012-1388-1