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arXiv 0912.0083cond-mat.mtrl-scicond-mat.mes-hall
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石墨烯在氧化时是如何被切割的?

How Graphene Is Cut upon Oxidation?

Zhenyu Li, * Wenhua Zhang, Yi Luo, Jinlong Yang, *, Jian Guo Hou

摘要:

我们的第一性原理计算揭示了石墨烯的氧化切割是通过形成环氧基和羰基对来实现的。直接形成羰基对从边缘位置撕裂石墨烯在能量上是不利的。这种原子图像对于开发有效的石墨烯操纵手段很有价值。提出的环氧树脂对可能与氧化石墨烯上一些长期令人困惑的实验观察有关。

英文摘要:

Our first principles calculations reveal that oxidative cut of graphene is realized by forming epoxy and then carbonyl pairs. Direct forming carbonyl pair to tear graphene up from an edge position is not favorable in energy. This atomic picture is valuable for developing effective graphene manipulation means. The proposed epoxy pairs may be related to some long puzzling experimental observations on graphene oxide.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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