典型文献
Three-dimensional hierarchically porous nitrogen-doped carbon from water hyacinth as selenium host for high-performance lithium-selenium batteries
文献摘要：
Hierarchically porous nitrogen-doped carbon(HPNC)with interconnected micro-,meso-,and macrop-ores was generated from KOH and urea etching as a carbon scaffold to infuse Se.In this structure,micropores confine Se as single-chain molecules,preventing the generation of higher-order polyselenides,the mesopores provide effec-tive pathways for electrolyte diffusion and ion transport and offer sufficient void space to accommodate the volume change of Se upon lithiation/delithiation,and the doped nitrogen improves the electrical conductivity of HPNC and increases the utilization of Se.When applied as a scaffold for Se in a lithium-selenium battery,the Se/HPNC cathode with a large Se content of 67.6 wt％maintains a high discharge capacity of 410 mAh·g-1 at the 500th cycle at 1.0C,and it demonstrates a discharge capacity as high as 371 mAh·g-1 even at a high current density of 5.0C.Moreover,when the current density returns to 0.2C,the discharge capacity recovers to 527 mAh·g-1 with a capacity retention rate of 90.5％for the first 0.2C,indi-cating the excellent structural stability of HPNC.HPNC has significant potential for application in energy storage systems.
文献关键词：
中图分类号：
作者姓名：
Wei-Na Deng;Yan-Hua Li;Di-Fa Xu;Wei Zhou;Kai-Xiong Xiang;Han Chen
作者机构：
Hunan Key of Laboratory of Applied Environmental Photocatalysis,Changsha University,Changsha 410022,China;School of Metallurgy and Materials Engineering,Hunan University of Technology,Zhuzhou 412007,China
文献出处：
引用格式：
[1]Wei-Na Deng;Yan-Hua Li;Di-Fa Xu;Wei Zhou;Kai-Xiong Xiang;Han Chen-.Three-dimensional hierarchically porous nitrogen-doped carbon from water hyacinth as selenium host for high-performance lithium-selenium batteries)[J].稀有金属（英文版）,2022(10):3432-3445
A类：
hyacinth,HPNC,macrop,infuse,polyselenides,500th
B类：
Three,dimensional,hierarchically,porous,nitrogen,doped,carbon,from,water,selenium,host,performance,lithium,batteries,Hierarchically,interconnected,was,generated,KOH,urea,etching,scaffold,Se,In,this,structure,micropores,confine,single,chain,molecules,preventing,generation,higher,order,mesopores,provide,effec,tive,pathways,electrolyte,diffusion,transport,offer,sufficient,void,space,accommodate,volume,change,upon,delithiation,improves,electrical,conductivity,increases,utilization,When,applied,battery,cathode,large,content,wt,maintains,discharge,capacity,mAh,cycle,0C,demonstrates,current,density,Moreover,when,returns,2C,recovers,retention,first,indi,cating,excellent,structural,stability,has,significant,potential,application,energy,storage,systems
AB值：
0.525369
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机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
