氟、氮共掺杂石墨烯的制备及钠离子电池性能研究  

Preparation of Fluorine and Nitrogen Co-doped Graphene and Properties of Sodium-ion Batteries

作　　者：官宏鑫 张子蒙 王慧晴 王迪 吴文倩 徐冬领 王贵志 GUAN Hong-xin;ZHANG Zi-meng;WANG Hui-qing;WANG Di;WU Wen-qian;XU Dong-ling;WANG Gui-zhi(School of Chemistry&Chemical Engineering,Suzhou University,Suzhou 234000,China)

机构地区：[1]宿州学院化学化工学院,安徽宿州234000

出　　处：《安徽化工》2025年第1期53-56,共4页Anhui Chemical Industry

基　　金：宿州学院2024年省级大学生创新创业训练计划项目,项目名称:“烯”望之旅,“钠”就出发——石墨烯基高性能钠离子电池的设计研发;宿州学院博士科研启动基金项目(2021BSK011);产学研合作项目(2023xhx310);安徽省教育厅优秀青年基金项目(2023AH030100);国家自然科学基金项目(22206145)。

摘　　要：为了获得高性能钠离子电池电极材料,以氧化石墨烯、尿素和氢氟酸为前驱体,通过简单的水热法合成了氟、氮共掺杂石墨烯(FN-GNS)电极材料。对得到的FN-GNS复合材料通过相应的结构以及形貌表征验证其结构。将其作为正极材料应用于钠离子电池中,电化学性能表明,氟、氮两种杂原子掺杂的石墨烯材料相对于单一杂原子掺杂的电极具有更好的放电比容量和循环稳定性。FN-GNS电极在50 mA g^(-1)电流密度下循环50圈比容量仍然稳定在112 mAh g^(-1),为提升钠离子电池碳基正极材料电化学性能提供了一种新的思路。In order to obtain high-performance in sodium-ion battery electrode materials in sodium-ion batteries,the fluorine and nitrogen co-doped graphene(FN-GNS)electrode materials were synthesized by a simple hydrothermal method by using graphene oxide,urea and hydrofluoric acid as precursors.The structure of the obtained FN-GNS composite was verified by corresponding structure and morphology characterizations.The electrochemical performance of fluorine and nitrogen co-doped graphene has better discharge capacity and cycle stability than that of single heteroatom doped electrode.The specific capacity of the FN-GNS electrode showed stably at 112 mA h g^(-1) after 50 cycles at 50 mA g^(-1).This research provides a new way to improve the electrochemical performance of carbon-based cathode materials for sodium ion batteries.

关 键 词：石墨烯 氟掺杂 氮掺杂 钠离子电池 电化学性能 

分 类 号：O646[理学—物理化学]