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Graphene Oxide: Structural Analysis and Application as a Highly Transparent Support for Electron Microscopy

机译:氧化石墨烯:结构分析和作为电子显微镜的高度透明载体

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摘要

We report on the structural analysis of graphene oxide (GO) by transmission electron microscopy (TEM). Electron diffraction shows that on average the underlying carbon lattice maintains the order and lattice- spacings of graphene; a structure that is clearly resolved in 80 kV aberration-corrected atomic resolution TEM images. These results also reveal that single GO sheets are highly electron transparent and stable in the electron beam, and hence ideal support films for the study of nanoparticles and macromolecules by TEM. We demonstrate this through the structural analysis of physiological ferritin, an iron-storage protein.
机译:我们通过透射电子显微镜(TEM)报告了氧化石墨烯(GO)的结构分析。电子衍射表明,平均而言,下面的碳晶格保持了石墨烯的有序和晶格间距。在80 kV像差校正的原子分辨率TEM图像中可以清楚地分辨出该结构。这些结果还表明,单个GO片具有高度的电子透明性,并且在电子束中稳定,因此是用于通过TEM研究纳米颗粒和大分子的理想支撑膜。我们通过对生理铁蛋白(一种铁存储蛋白)的结构分析来证明这一点。

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