Formation of highly stable dispersions of silane-functionalized reduced graphene oxide
Formation of highly stable dispersions of silane-functionalized reduced graphene oxide
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DOI：
10.1016/j.cplett.2010.10.051
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发表时间：
2010-12-06
影响因子：
2.8
通讯作者：
Madarang, Clemonne John
中科院分区：
文献类型：
--
作者：
Hou, Shifeng;Su, Shujun;Madarang, Clemonne John
开发了一种通过甲硅烷基化使石墨烯片化学官能化的方法。氧化石墨烯片用N-（三甲氧基甲硅烷基丙基）乙二胺三乙酸硅烷化。然后将硅烷化的氧化石墨烯片还原以产生水溶性石墨烯衍生物（EDTA-石墨烯）。采用傅里叶变换红外光谱、扫描电子显微镜和X射线光电子能谱对EDTA-石墨烯的结构和性能进行了表征，并监测了硅烷化反应不同阶段石墨烯的表面形貌和化学物理特性的变化。EDTA-石墨烯在水中显示出改善的分散性，并且制备了具有良好层状结构和高导电性的EDTA-石墨烯膜。(C)2010年爱思唯尔B。V.保留所有权利。
A method was developed to chemically functionalize graphene sheets by silylation. The graphene oxide sheets were silanized with N-(trimethoxysilylpropyl) ethylenediamine triacetic acid. Then the silanized graphene oxide sheets were reduced to produce water-soluble graphene derivatives (EDTA-graphenes). Fourier transform infrared spectroscopy, scanning electron microscopy and X-ray photoelectron spectroscopy were employed to characterize the structures and properties of the EDTA-graphenes and to monitor changes in the surface morphology and chemical and physical characteristics of graphene at different stages of the silylation reaction. The EDTA-graphenes showed improved dispersion in water and an EDTA-graphene film with a well-layered structure and high conductivity was fabricated. (C) 2010 Elsevier B. V. All rights reserved.