作者:Xu, XJ (Xu, Xijun)[1 ]; Liu, ZB (Liu, Zhengbo)[1 ]; Ji, SM (Ji, Shaomin)[2 ]; Wang, ZS (Wang, Zhuosen)[1 ]; Ni, ZY (Ni, Zhenyu)[1 ]; Lv, YQ (Lv, Yunqiong)[1 ]; Liu, JW (Liu, Jiangwen)[1 ]; Liu, J (Liu, Jun)[1 ]
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文献类型:Article
Na-ion batteries (SIBs) have now attractive extensive attention due to the wide-spread preserve of sodium resources and low cost, which have the potential as the alternative for Li-ion batteries and suitable for large energy station application. Herein, we have rationally synthesized uniform nanotube-structured FeS@TiO2@ C anode with metal-organic framework (Fe-MOF) rods as the self-support template. Such uniform ternary FeS@TiO2@C nanotubes were facilely prepared by sulfuration of FeTiO3@C nanotubes, which were obtained by a one-pot annealing of TiO2-coated Fe-MOF nanorods. This carbon-wrapped hollow nanostructure could effectively mitigate the volume expansion, improve the electronic conductivity and provide more channels and active sites for Na+ transporting. In detail, these uniform FeS@TiO2@C nanotubes achieve superior rate capability (with a high reversible capacity of 387, 390, 376, 348, 325, and 286 mA h g(-1) at the current density of 0.1, 0.2, 0.5, 1.0, 2.0, and 5.0 A g(-1), respectively) and excellent cycling performance (with a reversible capacity of 454 mA h g(-1) after 120 cycles at 0.2 A g(-1) and 406 mA h g(-1) after 150 cycles at 1.0 A g(-1)).
作者关键词:Na-ion batteries; Metal-organic framework; Ternary composites; Nanotubes; Carbon-encapsulation
KeyWords Plus:HIGH-PERFORMANCE ANODE; HIGH-CAPACITY ANODE; CATHODE MATERIAL; 3-DIMENSIONAL GRAPHENE; ELECTRODE MATERIALS; SODIUM STORAGE; STABLE ANODE; LOW-COST; LITHIUM; NANOCOMPOSITE
通讯作者地址:Liu, J (通讯作者)
 | South China Univ Technol, Guangdong Prov Key Lab Adv Energy Storage Mat, Sch Mat Sci & Engn, Guangzhou 510641, Guangdong, Peoples R China. |
| Guangdong Univ Technol, Sch Chem Engn & Light Ind, Guangzhou 510006, Guangdong, Peoples R China. |
地址:
电子邮件地址:smji@gdut.edu.cn; msjliu@scut.edu.cn
| 基金资助机构 | 授权号 |
|---|---|
| National Natural Science Foundation of China | 51771076 |
| Project of Public Interest Research and Capacity Building of Guangdong Province | 2017A010104004 |
| Guangzhou Science and Technology Plan Projects | 201707010243 201804010104 |
| Chinese Government | |
| Guangdong Province Universities and Colleges Young Pearl River Scholar Funded Scheme |