Division of Chemistry & Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore.
Chemistry. 2013 Feb 18;19(8):2655-62. doi: 10.1002/chem.201202972. Epub 2013 Jan 7.
Nanoarchitectonics on graphene implicates a specific and exact anchoring of molecules or nanoparticles onto the surface of graphene. One such example of an effective anchoring group that is highly reactive is the halogen moiety. Herein we describe a simple and scalable method for the introduction of halogen (chlorine, bromine, and iodine) moieties onto the surface of graphene by thermal exfoliation/reduction of graphite oxide in the corresponding gaseous halogen atmosphere. We characterized the halogenated graphene by using various techniques, including scanning and transmission electron microscopy, Raman spectroscopy, high-resolution X-ray photoelectron spectroscopy, and electrochemistry. The halogen atoms that have successfully been attached to the graphene surfaces will serve as basic building blocks for further graphene nanoarchitectonics.
在石墨烯上进行纳米结构设计意味着将分子或纳米粒子精确地固定在石墨烯的表面上。卤素基团是一种非常有效的锚固基团，具有很高的反应活性。在此，我们描述了一种简单且可扩展的方法，即在相应的气态卤素气氛中通过热剥离/还原氧化石墨，在石墨烯表面上引入卤素（氯、溴和碘）基团。我们使用各种技术对卤化石墨烯进行了表征，包括扫描和透射电子显微镜、拉曼光谱、高分辨率 X 射线光电子能谱和电化学。成功连接到石墨烯表面的卤素原子将作为进一步进行石墨烯纳米结构设计的基础构建块。
