Abstract

The synthesis of graphene-containing nanomaterials from grade D coal of the Shubarkol deposits (Kazakhstan) was carried out. The graphene-containing nanomaterials were prepared using electric arc discharge based on coke from Shubarkol coal obtained at 1173 K in an atmosphere of nitrogen. Several layered graphene flakes were synthesized using an arc discharge at a constant voltage of 75 V and current strengths of 150 and 300 A in a quartz reactor. The physicochemical characteristics and surface morphology of the test samples were studied. The electrical resistance (R), capacitance (C), and dielectric constant (ε) of the graphene-containing material were determined in a temperature range of 293–483 K.

中文翻译：

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使用电弧放电合成基于碳产品的含石墨烯纳米材料

摘要

从 Shubarkol 矿床（哈萨克斯坦）的 D 级煤中合成含石墨烯的纳米材料。基于来自 Shubarkol 煤的焦炭在氮气气氛中在 1173 K 下获得的焦炭，使用电弧放电制备了含石墨烯的纳米材料。在石英反应器中，在 75 V 的恒定电压和 150 和 300 A 的电流强度下使用电弧放电合成了几种层状石墨烯薄片。对试样的理化特性和表面形貌进行了研究。含石墨烯材料的电阻 ( R )、电容 ( C ) 和介电常数 (ε) 在 293–483 K 的温度范围内测定。