Electronic structure and bonding properties of chlorine-treated nitrogenated carbon nanotubes: X-ray absorption and scanning photoelectron microscopy studies
學年 95
學期 2
出版(發表)日期 2007-05-07
作品名稱 Electronic structure and bonding properties of chlorine-treated nitrogenated carbon nanotubes: X-ray absorption and scanning photoelectron microscopy studies
作品名稱(其他語言)
著者 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.
單位 淡江大學物理學系
出版者 College Park: American Institute of Physics (AIP)
著錄名稱、卷期、頁數 Applied Physics Letters 90(19), pp.192107(3pages)
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.
關鍵字
語言 en
ISSN 0003-6951 1077-3118
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產學合作
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國別 USA
公開徵稿
出版型式 紙本 電子版
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