An experimental investigation on the synthesis of fluorographene by electrochemical method in the mixture of sulfuric and hydrofluoric acid electrolytes
| Autor: | Reza Eslami-Farsani, Hamed Aghamohammadi, Meisam Bakhtiari |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Materials science
02 engineering and technology 01 natural sciences law.invention chemistry.chemical_compound symbols.namesake Hydrofluoric acid law 0103 physical sciences Materials Chemistry Graphite Fourier transform infrared spectroscopy Fluorographene 010302 applied physics Graphene Process Chemistry and Technology Sulfuric acid 021001 nanoscience & nanotechnology Exfoliation joint Surfaces Coatings and Films Electronic Optical and Magnetic Materials chemistry Ceramics and Composites symbols 0210 nano-technology Raman spectroscopy Nuclear chemistry |
| Zdroj: | Ceramics International. 46:25189-25199 |
| ISSN: | 0272-8842 |
| DOI: | 10.1016/j.ceramint.2020.06.308 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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