Hierarchical porous carbon pellicles: Electrospinning synthesis and applications as anodes for sodium-ion batteries with an outstanding performance
Hierarchical porous carbon pellicles: Electrospinning synthesis and applications as anodes for sodium-ion batteries with an outstanding performance
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多级孔碳薄膜：静电纺丝合成及其作为性能优异的钠离子电池阳极的应用
DOI：
10.1016/j.carbon.2019.10.015
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发表时间：
2020-02
期刊：
影响因子：
10.9
通讯作者：
Yue Yanfeng
中科院分区：
文献类型：
--
作者：
Shan Changsheng;Feng Xi;Yang Jingxuan;Yang Xu;Guan Hong-Yu;Argueta Monica;Wu Xing-Long;Liu Dao-Sheng;Austin Douglas J.;Nie Ping;Yue Yanfeng
N-doped hierarchically structured carbon pellicles (CZIF-8/PAN) were prepared from the carbonization of zeolitic imidazolate framework (ZIF-8)/polyacrylonitrile (PAN) composite fibers which were fabricated by electrospinning technique. The resultant free-standing nanofiberic pellicles can be cut into membrane disks and directly used as anode materials without any binder and additive. As an anode for sodium-ion batteries (SIBs), the CZIF-8/PAN nanofiberic carbon pellicles showed superior reversible capacities of 186.2 mAh g(-1) at high current density of 1.0 A g(-1) and an excellent cyclic stability (93.5% remaining after 600 cycles) compared to other similar reported carbonaceous anode materials for SIBs. The improved electrochemical performance of CZIF-8/PAN carbon pellicles is mainly attributed to the hierarchical porous structures produced by introducing large ZIF-8 particles as a template, which greatly promotes the large sodium cation transportation and electron transfer rates due to the enlarged pores and increased contact area between the electrode and electrolyte. In addition, the enhanced electrochemical performance of CZIF-8/PAN nanofiberic anodes also benefits from the doping of nitrogen atoms which enhance the conductivity and increase the active sites. (C) 2019 Elsevier Ltd. All rights reserved.
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影响因子：
46.2
作者：
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通讯作者：
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影响因子：
9.2
作者：
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影响因子：
27.8
作者：
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通讯作者：
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影响因子：
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作者：
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