矿产保护与利用2025，Vol.45Issue(4)：116-122,7.DOI:10.13779/j.cnki.issn1001-0076.2025.04.009
鳞片石墨电化学法氧化制备可膨胀石墨
Preparation of Expandable Graphite by Electrochemical Oxidation
摘要
Abstract
+100 mesh flake graphite was used as raw material to make expandable graphite via a self-made double-spiral stirring electrochemical device.XRD and FTIR were adopted to characterize the graphene nanoplatelet.XRD and FTIR were employed to analyze the influences of different electrochemical oxidation times on the structure and oxygen-containing functional groups of graphite,and SEM was adopted to characterize the morphological changes of expandable graphite and expanded graphite.The effect of oxidation time on the expansion volume during the preparation was investigated,and its influence mechanism was analyzed.The results showed that the optimum intercalation expansion conditions of the mass ratio of graphite to concentrated sulfuric acid was 1∶1.8,the current density of 3 A/dm2,the reaction temperature at approximately 0℃for 3 h.Expandable graphite with a fixed carbon content of 99.95%and an expansion volume of 230 mL/g was prepared.This research method provided a new idea for the green preparation of expanded graphite with a high expansion volume,and facilitated the promotion and application of electrochemical equipment and processes for the preparation of expandable graphite in graphite enterprises in China.关键词
鳞片石墨/可膨胀石墨/电化学法/膨胀容积/膨胀机理Key words
flake graphite/expandable graphite/electrochemical method/expansion volume/expansion principle分类
矿业与冶金引用本文复制引用
陈松梅,孟凡娜,张海军,王嘉琦..鳞片石墨电化学法氧化制备可膨胀石墨[J].矿产保护与利用,2025,45(4):116-122,7.基金项目
黑龙江省重点研发计划项目(2024ZX06A04) （2024ZX06A04）
黑龙江省属本科高校基本科研业务费项目(2024-KYYWF-1078) （2024-KYYWF-1078）
黑龙江省科学院重点研发计划项目(KY2024GJD03) （KY2024GJD03）
黑龙江省省属科研院所科研业务费项目(CZKYF2024-1-B039,CZKYF2025-1-B032) （CZKYF2024-1-B039,CZKYF2025-1-B032）
