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Title: Electronic structures and bonding properties of chlorine-treated nitrogenated carbon nanotubes: X-ray absorption and scanning photoelectron microscopy studies

Abstract

The electronic and bonding properties of nitrogenated carbon nanotubes (N-CNTs) exposed to chlorine plasma were investigated using C and N K-edge x-ray absorption near-edge structure (XANES) and scanning photoelectron microscopy (SPEM). The C and N K-edge XANES spectra of chlorine-treated N-CNTs consistently reveal the formation of pyridinelike N-CNTs by the observation of 1s{yields}{pi}*(e{sub 2u}) antibonding and 1s{yields}{pi}*(b{sub 2g}) bonding states. The valence-band photoemission spectra obtained from SPEM images indicate that chlorination of the nanotubes enhances the C-N bonding. First-principles calculations of the partial densities of states in conjunction with C K-edge XANES data identify the presence of C-Cl bonding in chlorine treated N-CNTs.

Authors:
; ; ; ; ; ; ; ; ; ;  [1];  [2];  [2];  [3];  [2];  [2];  [3]
  1. Department of Physics, Tamkang University, Tamsui 251, Taiwan (China)
  2. (China)
  3. (United Kingdom)
Publication Date:
OSTI Identifier:
20971916
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 90; Journal Issue: 19; Other Information: DOI: 10.1063/1.2737392; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ABSORPTION; ABSORPTION SPECTROSCOPY; BOUND STATE; CARBON; CHEMICAL BONDS; CHLORINATION; CHLORINE; ELECTRONIC STRUCTURE; NANOTUBES; PHOTOELECTRON SPECTROSCOPY; SCANNING ELECTRON MICROSCOPY; X-RAY SPECTROSCOPY

Citation Formats

Ray, S. C., Pao, C. W., Tsai, H. M., Chiou, J. W., Pong, W. F., Chen, C. W., Tsai, M.-H., Papakonstantinou, P., Chen, L. C., Chen, K. H., Graham, W. G., Department of Materials Science and Engineering, National Taiwan University, Taipei 106, Taiwan, Department of Physics, National Sun Yat-Sen University, Kaohsiung 804, Taiwan, NRI, School of Electrical and Mechanical Engineering, University of Ulster at Jordanstown, Newtownabbey, County Antrim BT37OQB, Northern Ireland, Center for Condensed Matter Sciences, National Taiwan University, Taipei 106, Taiwan, Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 106, Taiwan, and Department of Physics and Astronomy, Queens University of Belfast, Belfast, Antrim BT71NN, Northern Ireland. Electronic structures and bonding properties of chlorine-treated nitrogenated carbon nanotubes: X-ray absorption and scanning photoelectron microscopy studies. United States: N. p., 2007. Web. doi:10.1063/1.2737392.
Ray, S. C., Pao, C. W., Tsai, H. M., Chiou, J. W., Pong, W. F., Chen, C. W., Tsai, M.-H., Papakonstantinou, P., Chen, L. C., Chen, K. H., Graham, W. G., Department of Materials Science and Engineering, National Taiwan University, Taipei 106, Taiwan, Department of Physics, National Sun Yat-Sen University, Kaohsiung 804, Taiwan, NRI, School of Electrical and Mechanical Engineering, University of Ulster at Jordanstown, Newtownabbey, County Antrim BT37OQB, Northern Ireland, Center for Condensed Matter Sciences, National Taiwan University, Taipei 106, Taiwan, Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 106, Taiwan, & Department of Physics and Astronomy, Queens University of Belfast, Belfast, Antrim BT71NN, Northern Ireland. Electronic structures and bonding properties of chlorine-treated nitrogenated carbon nanotubes: X-ray absorption and scanning photoelectron microscopy studies. United States. doi:10.1063/1.2737392.
Ray, S. C., Pao, C. W., Tsai, H. M., Chiou, J. W., Pong, W. F., Chen, C. W., Tsai, M.-H., Papakonstantinou, P., Chen, L. C., Chen, K. H., Graham, W. G., Department of Materials Science and Engineering, National Taiwan University, Taipei 106, Taiwan, Department of Physics, National Sun Yat-Sen University, Kaohsiung 804, Taiwan, NRI, School of Electrical and Mechanical Engineering, University of Ulster at Jordanstown, Newtownabbey, County Antrim BT37OQB, Northern Ireland, Center for Condensed Matter Sciences, National Taiwan University, Taipei 106, Taiwan, Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 106, Taiwan, and Department of Physics and Astronomy, Queens University of Belfast, Belfast, Antrim BT71NN, Northern Ireland. Mon . "Electronic structures and bonding properties of chlorine-treated nitrogenated carbon nanotubes: X-ray absorption and scanning photoelectron microscopy studies". United States. doi:10.1063/1.2737392.
@article{osti_20971916,
title = {Electronic structures and bonding properties of chlorine-treated nitrogenated carbon nanotubes: X-ray absorption and scanning photoelectron microscopy studies},
author = {Ray, S. C. and Pao, C. W. and Tsai, H. M. and Chiou, J. W. and Pong, W. F. and Chen, C. W. and Tsai, M.-H. and Papakonstantinou, P. and Chen, L. C. and Chen, K. H. and Graham, W. G. and Department of Materials Science and Engineering, National Taiwan University, Taipei 106, Taiwan and Department of Physics, National Sun Yat-Sen University, Kaohsiung 804, Taiwan and NRI, School of Electrical and Mechanical Engineering, University of Ulster at Jordanstown, Newtownabbey, County Antrim BT37OQB, Northern Ireland and Center for Condensed Matter Sciences, National Taiwan University, Taipei 106, Taiwan and Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 106, Taiwan and Department of Physics and Astronomy, Queens University of Belfast, Belfast, Antrim BT71NN, Northern Ireland},
abstractNote = {The electronic and bonding properties of nitrogenated carbon nanotubes (N-CNTs) exposed to chlorine plasma were investigated using C and N K-edge x-ray absorption near-edge structure (XANES) and scanning photoelectron microscopy (SPEM). The C and N K-edge XANES spectra of chlorine-treated N-CNTs consistently reveal the formation of pyridinelike N-CNTs by the observation of 1s{yields}{pi}*(e{sub 2u}) antibonding and 1s{yields}{pi}*(b{sub 2g}) bonding states. The valence-band photoemission spectra obtained from SPEM images indicate that chlorination of the nanotubes enhances the C-N bonding. First-principles calculations of the partial densities of states in conjunction with C K-edge XANES data identify the presence of C-Cl bonding in chlorine treated N-CNTs.},
doi = {10.1063/1.2737392},
journal = {Applied Physics Letters},
number = 19,
volume = 90,
place = {United States},
year = {Mon May 07 00:00:00 EDT 2007},
month = {Mon May 07 00:00:00 EDT 2007}
}
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