碳布负载NiMn-MOF的合成与储钠性能  

Synthesis and Sodium Storage Properties of NiMn-MOF Supported on Carbon Cloth

作　　者：董志鑫 郭金学[1] Dong Zhixin;Guo Jinxue(College of Chemistry and Molecular Engineering,Qingdao University of Science and Technology,Qingdao 266042,China)

机构地区：[1]青岛科技大学化学与分子工程学院,山东青岛266042

出　　处：《山东化工》2022年第20期17-19,共3页Shandong Chemical Industry

基　　金：国家自然科学基金(5087,605111112)。

摘　　要：金属有机框架(MOFs)材料被用作钠离子电池(SIBs)的电极材料,但存在可逆容量低和循环稳定性差的问题。以碳布(CC)负载NiMn层状双氢氧化物(NiMn LDH)纳米片(NiMn LDH@CC)为前驱体,采用溶剂热方法合成了碳纤维布支撑的NiMn-MOF纳米片(NiMn-MOF@CC)。得益于独特的纳米片结构,NiMn-MOF@CC作为负极材料表现出良好的钠离子存储性能。NiMn-MOF@CC纳米材料在1000 mA·g^(-1)的高电流密度下循环100次后具有513 mAh·g^(-1)的高可逆容量。此外,其优异的高可逆性和倍率性能,使NiMn-MOF@CC成为一种有前途的SIBs负极材料。Metal-organic frameworks(MOFs)have been used as electrode materials for sodium-ion batteries(SIBs),however,suffered from low reversible capacity and poor cyclic stability.Carbon fiber cloth supported NiMn-MOF(NiMn-MOF@CC)with nanosheet structure is prepared via a solvothermal method,using NiMn layered double hydroxides(NiMn LDH)nanosheets on CC(NiMn LDH@CC)as precursor.Benefited from the nanosheet structure,NiMn-MOF@CC exhibits good sodium ion storage properties as anode material.The obtained NiMn-MOF@CC nanomaterials attain a high reversible capacity of 513 mAh·g^(-1) after 100 cycles at a high current density of 1000 mA·g^(-1).In addition,the excellent high reversibility and rate performance are obtained,making NiMn-MOF@CC a promising anode material for SIBs.

关 键 词：钠离子电池 负极材料 纳米结构 金属有机框架 

分 类 号：TQ323.7[化学工程—合成树脂塑料工业]