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

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题名:	Electronic structure and bonding properties of chlorine-treated nitrogenated carbon nanotubes: X-ray absorption and scanning photoelectron microscopy studies
作者:	Pong, Way-faung;Ray, S. C.;Pao, C. W.;Tsai, H. M.;Chiou, J. W.;Chen, C. W.;Tsai, M. H.;Papakonstantinou, P.;Chen, L. C.;Chen, K. H.;Graham, G. W.
贡献者:	淡江大學物理學系
日期:	2007-05-07
上传时间:	2009-12-31 10:38:01 (UTC+8)
出版者:	College Park: American Institute of Physics (AIP)
摘要:	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→π(e2u) antibonding and 1s→π(b2g) 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.
關聯:	Applied Physics Letters 90(19), pp.192107(3pages)
DOI:	10.1063/1.2737392
显示于类别:	[物理學系暨研究所] 期刊論文

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