Abstract The halogenated graphene as a new family of graphene materials has received great attention owing to its outstanding properties. In this study, the simultaneous fluorination and exfoliation of graphite using a simple electrochemical method were investigated. The different mixtures of sulfuric acid and hydrofluoric acid (5, 10, 20, and 40 wt%) were used as the electrolytes for the anodic type of electrochemical process. The prepared powders were analyzed by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), Raman spectroscopy and Fourier-transform infrared (FTIR) spectroscopy. Results indicated that the presence of different concentrations of HF in solutions had a significant effect on the morphology and structure of prepared graphene. XRD patterns and FESEM demonstrated that the degree of exfoliation of graphite had been decreased by increasing the concentration of HF solutions.

中文翻译：

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硫酸氢氟酸电解液中电化学法合成氟石墨烯的实验研究

摘要 卤化石墨烯作为一类新的石墨烯材料，因其优异的性能而受到广泛关注。在这项研究中，研究了使用简单的电化学方法同时氟化和剥离石墨。硫酸和氢氟酸的不同混合物（5、10、20 和 40 重量%）用作阳极类型电化学过程的电解质。通过X射线衍射（XRD）、场发射扫描电子显微镜（FESEM）、拉曼光谱和傅里叶变换红外（FTIR）光谱分析制备的粉末。结果表明，溶液中不同浓度的 HF 的存在对制备的石墨烯的形貌和结构有显着影响。