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Facile fabrication of graphitization-enhanced wrinkled paper-like N-doped porous carbon via a ZnCl2-modified NaCl-template method for use as an anode in lithium ion batteries
Sustainable Energy & Fuels ( IF 5.6 ) Pub Date : 2020-04-22 , DOI: 10.1039/d0se00517g
Shuai Ru 1, 2, 3, 4 , Xia Wang 1, 2, 3, 4 , Guoqing Ma 1, 2, 3, 4 , Junyu Tan 1, 2, 3, 4 , Haihong Xiao 1, 2, 3, 4 , Zhaoquan Ai 1, 2, 3, 4
Affiliation  

Here, wrinkled paper-like carbon (WPC) is fabricated using a facile method using a ZnCl2-modified NaCl-template method and subsequently annealed in Ar. Considering its use as a lithium ion battery (LIB) anode, the WPC electrode exhibits a large specific capacity of 1079 mA h g−1 at 0.35 A g−1 after 1000 cycles, a superior high-rate long-term cycling performance of 693 mA h g−1 at 1 A g−1 after 400 cycles and a good rate performance, which is superior to that of the sample before ZnCl2 modification. The outstanding electrochemical properties of the WPC can be mainly attributed to the large specific surface area (1658.6 m2 g−1), abundant pore volume, enhanced graphitization and the wrinkled architecture after ZnCl2 modification. However, this N-doped porous WPC has potential for use as a LIB electrode material.

中文翻译:

通过ZnCl2修饰的NaCl模板方法轻松制造石墨化增强的皱纹纸状N掺杂多孔碳,用作锂离子电池的阳极

在此,使用ZnCl 2修饰的NaCl模板法的简便方法制造起皱的纸状碳(WPC),然后在Ar中退火。考虑到将其用作锂离子电池(LIB)阳极,WPC电极在1000次循环后在0.35 A g -1下显示出1079 mA hg -1的大比容量,出色的693 mA高倍率长期循环性能hg -1在400次循环后在1 A g -1下具有良好的速率性能,优于ZnCl 2改性之前的样品。WPC出色的电化学性能主要归因于较大的比表面积(1658.6 m 2 g -1),大量的孔体积,增强的石墨化作用以及ZnCl 2改性后的皱纹结构。然而,该N掺杂的多孔WPC具有用作LIB电极材料的潜力。
更新日期:2020-06-30
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