Fabrication of N,S co-doped porous carbon nanofibers as anode material for sodium-ion batteries with high performance  

一种N,S共掺杂多孔碳纳米纤维的制备及其作为钠离子电池负极材料的电化学性能研究

作　　者：LIU Shipeng YE Tingjuan SUN Zhonghui GUAN Hongyu 刘时鹏;叶婷娟;孙中辉;关宏宇(广州大学化学化工学院纳米纤维实验室,广东广州510006)

机构地区：[1]Nanofiber Laboratory,School of Chemistry and Chemical Engineering,Guangzhou University,Guangzhou 510006,China

出　　处：《分子科学学报》2024年第4期371-376,共6页Journal of Molecular Science

摘　　要：The N,S co-doped porous carbon nanofibers were fabricated by the carbonization of[Zn_(2)(tdc)_(2)(MA)]n MOFs/polyacrylonitrile nanofibers composite,which was produced by the electrospinning technology.The electrochemical results show that the N,S co-doped porous carbon nanofibers can achieve capacity of 201.2 mAh·g^(-1)at the current density of 0.05 A·g^(-1).Furthermore,the reversible capacity still has 161.3 mAh·g^(-1)even at a high current density of 1 A·g^(-1)after 600 cycles.The superior electrochemical performance shows that the N,S co-doped porous carbon nanofibers electrode material can be used as an ideal anode material for sodium-ion batteries.通过静电纺丝技术,将制备的[Zn_(2)(tdc)_(2)(MA)]nMOFs与PAN基纳米纤维复合,在N_(2)气氛中高温碳化处理制得一种氮硫共掺杂多孔碳纳米纤维材料。电化学测试结果表明,氮硫共掺杂多孔碳纳米纤维材料在0.05 A·g^(-1)电流密度下,可逆容量达到201.2 mAh·g^(-1)。在1 A·g^(-1)的电流密度下循环600圈后其可逆容量为161.3 mAh·g^(-1)。此氮硫共掺杂多孔碳纳米纤维电极材料的优越电化学性能可作为钠离子电池负极材料的一种理想选择。

关 键 词：sodium-ion battery ELECTROSPINNING [Zn_(2)(tdc)_(2)(MA)]nMOFs N S co-doped porous carbon nanofibers 

分 类 号：TM912[电气工程—电力电子与电力传动] TQ342.742[化学工程—化纤工业] TB383.1[一般工业技术—材料科学与工程]