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Investigation of the usability of extreme temperature changes in pristine graphene production
FlatChem ( IF 6.2 ) Pub Date : 2021-01-20 , DOI: 10.1016/j.flatc.2021.100223
Tamer Güzel

The scalable, controllable and sustainable mass production of graphene is still the subject of many studies. Various methods have been proposed and discussed for this. In this study, a low-cost new approach has been reported with purely mechanical methods, environmentally friendly, free of chemical solvents and suitable for mass production. This technique, which aims to separate the layers with the effect of the thermal stress forces created by the volumetric expansion/shrinkage nature caused by extreme temperature change, it differs from other mechanical and thermal exfoliations due to the absence of specific tools and special chemicals. With the approach based on this methodology, two different samples have been produced and their structural and morphological researches have been made. Structural analyzes have been characterized by X-ray diffraction diffractometer, Raman spectrometer, energy dispersive X-ray spectroscopy, while morphological research has been performed using scanning electron microscope. It has been confirmed with characterization devices that the thermomechanical exfoliation method can produce pristine graphene within the limits that can be accepted as quality.



中文翻译:

研究原始石墨烯生产中极端温度变化的可用性

石墨烯的可扩展,可控制和可持续的大规模生产仍然是许多研究的主题。为此已经提出并讨论了各种方法。在这项研究中,已经报道了一种低成本的新方法,该方法采用纯机械方法,环境友好,不含化学溶剂且适合批量生产。该技术旨在通过由极端温度变化引起的体积膨胀/收缩性质所产生的热应力的作用来分离各层,该技术与其他机械剥离和热剥离不同,原因是缺少专用工具和特殊化学物质。使用基于这种方法的方法,已经生产了两个不同的样品,并对其结构和形态进行了研究。结构分析通过X射线衍射衍射仪,拉曼光谱仪,能量色散X射线光谱仪进行表征,而形态学研究则使用扫描电子显微镜进行。通过表征装置已经证实,热机械剥离法可以在可以接受的质量范围内产生原始石墨烯。

更新日期:2021-01-24
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