T-Nb_(2)O_(5)/rGO纤维的成型探索及其电化学性能的研究  

Study on Forming and Electrochemical Properties of T-Nb_(2)O_(5)/rGO

作　　者：毕泽家 周哲[1] Bi Zejia;Zhou Zhe(State Key Laboratory for Modification of Chemical Fibers and Polymer Materials,College of Materials Science&Engineering,Donghua University,Shanghai 201620,China)

机构地区：[1]东华大学材料科学与工程学院,纤维材料改性国家重点实验室,上海201620

出　　处：《山东化工》2022年第10期1-5,8,共6页Shandong Chemical Industry

基　　金：国家自然科学基金(52090033/52090030);上海科学技术委员会(20JC1414901/20JC1414900);上海市教委创新计划项目(2017-01-07-00-03-E00055);长江学者和创新团队资助计划(IRT16R13);东华大学优秀青年教授计划和研究生创新基金(CUSF-DH-D-2019023);国家自然科学基金联合基金资助项目(U20A20257)

摘　　要：由于金属氧化物电导率较低影响到材料整体的电化学性能。因此,本文采用五氧化二铌作为电极材料,将其与石墨烯分别通过湿法纺丝和受限水热法进行复合,制备了具有不同结构的五氧化二铌复合石墨烯纤维,结果表明经过受限水热制备的五氧化二铌复合石墨烯纤维具有良好的电化学性能,在1 A/g的电流密度下经过1000次充放电循环,仍有32.5 mAh/g的容量,容量保持率为73.9%,为获得具有良好电化学性能的金属氧化物复合氧化石墨烯纤维提供了新的思路。The low electrical conductivity of metal oxides affects the overall electrochemical properties of the materials.In this paper,miobium pemtoxide was used as electrode material,which was compounded with graphene by wet spinning and limited hydrothermal method respectively,and niobium pentoxide composite graphere with diflerent structures were prepared,The results show that the niobium pentexide composite graphene fiber prepared by limited hydrothermal method has good electrochemical performance.After 1000 charge-discharge cycles at a current density of 1A/g,it still has a capacity of 32.5 mAh/g and a capacity retention rate of 73.9%,which provides a new idea for obtaining metal oxide composite graphene oxide fibers with good electrochemical properties.

关 键 词：五氧化二铌 湿法纺丝 受限水热法 

分 类 号：X52[环境科学与工程—环境工程] O643.36[理学—物理化学]