Fabrication of a Stainless-Steel-Mesh-Supported Hierarchical Fe2O3@NiCo2O4 Core-Shell Tubular Array Anode for Lithium-Ion Battery
Fabrication of a Stainless-Steel-Mesh-Supported Hierarchical Fe2O3@NiCo2O4 Core-Shell Tubular Array Anode for Lithium-Ion Battery
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不锈钢网支撑分层Fe 2O3@NiCo2O4核壳管状阵列锂离子电池阳极的制备
DOI：
10.1002/slct.201601198
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发表时间：
2016-10-16
期刊：
影响因子：
2.1
通讯作者：
Chen, Jiuhua
中科院分区：
文献类型：
--
作者：
Chu, Qingxin;Yang, Bin;Chen, Jiuhua
具有中空微结构的核壳结构在电化学储能领域具有广泛的应用前景。本文采用多步化学浴沉积法制备了Fe2O3@NiCo2O4核壳结构的分级管状阵列。所获得的样品已充分其特征在于使用粉末X射线衍射（XRD），扫描电子显微镜（SEM）和透射电子显微镜（TEM）分析。结果表明，利用ZnO阵列模板法制备的Fe 2 O3管状阵列表面均匀包覆了NiCo 2 O 4纳米片。在1000 mA·g（-1）电流密度下，Fe2O3@NiCo2O4管状阵列的比容量可达587 mAh·g（-1），具有良好的倍率性能和循环稳定性。
Core-shell architectures with hollow micro-structures have exhibited many potential applications in electrochemical energy storage fields. In this study, hierarchical Fe2O3@ NiCo2O4 core-shell tubular arrays have been synthesized by a multistep chemical bath deposition method. The obtained samples have been fully characterized using powder X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM) analysis. The results show that NiCo2O4 nanosheets have been uniformly coated on the Fe2O3 tubular array obtained by ZnO array template. When tested as an anode for lithium ion battery, the Fe2O3@ NiCo2O4 tubular arrays have been found to exhibit an improved specific capacity of 587 mAh g(-1) at a current density of 1000 mA g(-1), good rate capability and cycling stability.