文献类型：期刊文献

英文题名：β-FeOOH on carbon nanotubes as a cathode material for Na-ion batteries

作者：Zhang, Erjin[1]; Wang, Bin[2]; Yu, Xinzhi[1]; Zhu, Jingyi[3]; Wang, Longlu[4]; Lu, Bingan[1,4,5]

第一作者：Zhang, Erjin

通讯作者：Lu, Bingan

机构：[1] School of Physics and Electronics, State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changsha, 410082, China; [2] Physics and Electronic Engineering Department, Xinxiang University, Xinxiang, 453003, China; [3] Department of Mechanical and Aerospace Engineering, New York University, New York, 11201, United States; [4] State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha, 410082, China; [5] State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Shanxi, 030001, China

第一机构：School of Physics and Electronics, State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changsha, 410082, China

年份：2017

卷号：8

起止页码：147-152

外文期刊名：Energy Storage Materials

收录：EI(收录号：20192907206364);Scopus(收录号：2-s2.0-85020005916)

基金：The authors acknowledge the financial support from National Natural Science Foundation of China (Nos. 51672078 and 21473052) and Hunan University State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body Independent Research Project (No. 71675004), Hunan Youth Talents (2016RS3025), and Foundation of State Key Laboratory of Coal Conversion (Grant No. J17-18-903).

语种：英文

外文关键词：Carbon nanotubes - Cathode materials - Cathodes - Electric discharges - Electrolytes - Iron compounds - Metal ions - Nanocomposites

摘要：Sodium ion batteries (SIBs) have attracted extensive attention in recent years. However, the large volume change of cathode materials during the charge and discharge processes impedes the progress and application of SIBs. In this paper, three-dimensional (3D) tetsubo-like Beta-iron oxy-hydroxide (β-FeOOH) nano-cuboids on carbon nanotubes (CNTs) are synthesized by a simple solution method and used as cathode for SIBs. The β-FeOOH exhibits a (2×2) tunnel-type configuration, which can provide huge space for reversible sodium. The radial distribution of β-FeOOH nano-cuboids on the CNTs provides plenty cushion space and sufficient contact area with electrolyte during charge and discharge processes. Furthermore, the CNTs can enhance the electric conductivity and prevent the nanocomposite from agglomeration. Benefiting from the unique structure, the hybridization nanocomposite delivers a high initial discharge capacity (271?mA?h?g?1 at 10?mA?g?1), long cycle life (120?mA?h?g?1 after 150 cycles with ~0.1% capacity decay per cycle at 120?mA?g?1) and high rate performance (118?mA?h?g?1 at a current density of 240?mA?g?1). These results indicate that the β-FeOOH@CNTs nanocomposite electrode may be a promising candidate for SIBs. Our work may provide a new way to construct and design high-performance cathode electrode materials for SIBs and related systems. ? 2017 Elsevier B.V.