X-ray absorption spectroscopy of graphite oxide

被引：256

作者：

Jeong, H. -K. ^{[1
]}

Noh, H. -J. ^{[2
]}

Kim, J. -Y. ^{[3
,4
]}

Jin, M. H. ^{[1
]}

Park, C. Y. ^{[1
]}

Lee, Y. H. ^{[1
]}

机构：

[1] Sungkyunkwan Univ, Sungkyunkwan Adv Inst Nanotechnol, Ctr Nanotubes & Nanostructured Composites, Phys Div BK21, Suwon 440746, South Korea

[2] Chonnam Natl Univ, Dept Phys, Kwangju 500757, South Korea

[3] POSTECH, Dept Phys, Pohang 790784, South Korea

[4] POSTECH, Pohang Accelerator Lab, Pohang 790784, South Korea

来源：

EPL | 2008年 / 82卷 / 06期

关键词：

D O I：

10.1209/0295-5075/82/67004

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have investigated the electronic structure of graphite oxide using X-ray absorption spectroscopy at the carbon and oxygen K-edges. The unoccupied pi* and sigma* states associated with sp(2) hybridization in graphite, are also apparent in the graphite oxide, which indicates that it has a graphitic structure even though it experiences oxidation and annealing. Additional electronic states of the graphite oxide which are not present in its precursor, graphite, are ascribed to the functional groups such as epoxide, carboxyl, and hydroxyl groups. Copyright (C) EPLA, 2008.

引用

页数：5

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