Enhanced cyclic performance of Cu2V2O7/reduced Graphene Oxide mesoporous microspheres assembled by nanoparticles as anode for Li-ion battery
Enhanced cyclic performance of Cu2V2O7/reduced Graphene Oxide mesoporous microspheres assembled by nanoparticles as anode for Li-ion battery
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纳米粒子组装的Cu2V2O7/还原氧化石墨烯介孔微球作为锂离子电池负极的增强循环性能
DOI：
10.1016/j.jallcom.2017.07.070
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发表时间：
2017
影响因子：
6.2
通讯作者：
Jia Na
中科院分区：
文献类型：
--
作者：
Wang Yong;Cao Liyun;Huang Jianfeng;Lu Jing;Zhang Boye;Hai Guojuan;Jia Na
采用低温水热法制备了Cu2V2O7/还原石墨烯(CVO/rGO)介孔微球。用X射线衍射仪(XRD)、场发射扫描电子显微镜(FE-SEM)对样品的结构和形貌进行了表征。该介孔微球在0.1Ag(-1)下循环200次后的可逆容量为830mAh.g(-1)，在1和5Ag(-1)下循环10次后的可逆容量分别为524mAh.g(-1)和170mAh.g(-1)。这些优异的电化学性能可以归因于rGO纳米片和Cu2V2O7独特的结构和协同储能效应。(C)2017爱思唯尔B.V.保留所有权利。
Cu2V2O7/reduced Graphene Oxide (CVO/rGO) mesoporous microspheres were prepared by low temperature hydrothermal method and the following heat treatment process. The structures and morphology were characterized by X-ray diffraction (XRD), field-emissing scanning electron microscopy (FE-SEM). The reversible capacities of this mesoporous microspheres is 830 mAh.g(-1) at 0.1 A g(-1) after 200 cycles without capacity fade, which also exhibit superior rate capabilities with reversible capacities of 524 and 170 mAh.g(-1) after 10 cycles at 1 and 5 A g(-1), respectively. These excellent electrochemical properties may be attributed to the unique structures and the synergistic energy storage effect of rGO nanosheet and Cu2V2O7. (C) 2017 Elsevier B.V. All rights reserved.