Adsorption structure analysis of entrapped nitrogen in carbon-nanohorns by soft X-ray emission and absorption spectroscopy

作者：Amano Taiji; Muramatsu Yasuji^*; Sano Noriaki; Denlinger Jonathan D; Gullikson Eric M

来源：Journal of Electron Spectroscopy and Related Phenomena, 2010, 181(2-3): 186-188.

DOI：10.1016/j.elspec.2010.03.010

• Carbon nanohorn
• Synchrotron radiation
• Soft X-ray spectroscopy
• Electronic structure
• DV-X alpha method

Adsorption structure of the entrapped nitrogen in carbon-nanohorns, which are synthesized by submerged arc-discharge with carbon electrodes in liquid nitrogen, has been analyzed by soft X-ray emission and absorption spectroscopy using synchrotron radiation. From spectral analysis using the discrete variational (DV)-X alpha molecular orbital method, it is elucidated that the most probable structure is the chemisorption of N(2) at the edges of hexagonal carbon layers. The adsorbed N(2) forms a pentagonal or a hexagonal ring with the edge carbon atoms in the zigzag or armchair arrangements, respectively.

• 出版日期2010-8