Graphene nanoribbons formed from n-alkane by thermal dehydrogenation on Au(111) surface
Graphene nanoribbons formed from n-alkane by thermal dehydrogenation on Au(111) surface
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DOI：
10.1016/j.susc.2014.12.005
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发表时间：
2015-05-01
期刊：
影响因子：
1.9
通讯作者：
Ozaki, Hiroyuki
中科院分区：
文献类型：
--
作者：
Endo, Osamu;Nakamura, Masashi;Ozaki, Hiroyuki
将正构烷烃吸附在Au（111）表面，通过脱氢反应形成石墨烯纳米带。在碳k边附近的x射线吸收光谱显示，n-C44H90单层受热后出现面外1s—> pi*共振，同时1s—> sigma*(CH)/R （R: Rydberg态）共振消失。π *共振位于284.6 eV处，反映出较高的边缘密度，与扫描隧道显微镜观察到的带状形状一致，c1s XPS峰位于284.0 eV处。(C) 2014 Elsevier B.V.版权所有
A graphene nanoribbon is formed by the dehydrogenation reaction of n-alkane adsorbed on a Au(111) surface. The X-ray absorption spectra at the near carbon K-edge show the appearance of the out-of-plane 1s --> pi* resonance upon heating the n-C44H90 monolayer with the simultaneous disappearance of the 1s --> sigma*(CH)/R (R: Rydberg state) resonance. The pi* resonance located at 284.6 eV reflects a high edge density and is consistent with the ribbon shape, which was observed by scanning tunneling microscopy, and the C 1s XPS peak at 284.0 eV. (C) 2014 Elsevier B.V. All rights reserved.