A comparative study of the electronic structures of oxygen- and chlorine-treated nitrogenated carbon nanotubes by x-ray absorption and scanning photoelectron microscopy
學年 96
學期 1
出版（發表）日期 2007-11-01
作品名稱 A comparative study of the electronic structures of oxygen- and chlorine-treated nitrogenated carbon nanotubes by x-ray absorption and scanning photoelectron microscopy
作品名稱（其他語言）
著者 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.
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 91(20), 202102(3pages)
摘要 The electronic structures and bonding properties of oxygen- and chlorine-treated nitrogenated carbon nanotubes (N-CNTs) were studied using x-ray absorption near-edge structure (XANES) and scanning photoelectron microscopy. Features in the C K-edge XANES spectra are shifted by ∼0.3 eV toward higher energies and by ∼1.1 eV toward lower energies relatively to those of the more symmetrical pyridinelike and graphitelike structured N-CNTs upon chlorination and oxidation, respectively. Increases in N K-edge XANES intensities for both chlorination and oxidation reveal substitution of C–C bonds by C–N bonds consistent with the observed valence-band photoemission spectra of the decrease of the C 2s bond and the increase of the N 2s bond.
關鍵字 carbon nanotubes; oxidation; photoelectron spectra; valence bands; XANES
語言 en
ISSN 1077-3118 0003-6951
期刊性質
收錄於
產學合作
通訊作者
審稿制度
國別 USA
公開徵稿
出版型式 電子版 紙本
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