典型文献
Interconnected carbon nanocapsules with high N/S co-doping as stable and high-capacity potassium-ion battery anode
文献摘要：
Carbonaceous materials have drawn much attention in potassium-ion batteries(PIBs)due to their low price and superior physicochemical properties.However,the application of carbonaceous materials in PIB anodes is hindered by sluggish kinetics and large volume expansion.Herein,N/S co-doped carbon nanocapsule(NSCN)is constructed for superior K+storage.The NSCN possesses 3D nanocapsule frame-work with abundant meso/macropores,which guarantees structural robustness and accelerates ions/electrons transportation.The high-level N/S co-doping in carbon matrix not only generates ample defects and active sites for K+adsorption,but also expands interlayer distance for facile K* intercala-tion/deintercalation.As a result,the NSCN electrode delivers a high reversible capacity(408 mAh g-1 at 0.05 A g-1),outstanding rate capability(149 mAh g-1 at 5 A g-1)and favorable cycle stability(150 mAh g-1 at 2 A g-1 after 2000 cycles).Ex situ TEM,Raman and XPS measurements demonstrate the excel-lent stability and reversibility of NSCN electrode during potassiation/depotassiation process.This work provides inspiration for the optimization of energy storage materials by structure and doping engineering.
文献关键词：
中图分类号：
作者姓名：
Honghui Bi;Xiaojun He;Lei Yang;Hongqiang Li;Biyu Jin;Jieshan Qiu
作者机构：
School of Chemistry and Chemical Engineering,Anhui Key Laboratory of Coal Clean Conversion and High Valued Utilization,Key Lab of Metallurgical Emission Reduction&Resources Recycling,Ministry of Education,Anhui University of Technology,Maanshan 243002,Anhui,China;College of Chemical Engineering,Beijing University of Chemical Technology,Beijing 100029,China
文献出处：
引用格式：
[1]Honghui Bi;Xiaojun He;Lei Yang;Hongqiang Li;Biyu Jin;Jieshan Qiu-.Interconnected carbon nanocapsules with high N/S co-doping as stable and high-capacity potassium-ion battery anode)[J].能源化学,2022(03):195-204
A类：
nanocapsule,NSCN,K+storage,K+adsorption,depotassiation
B类：
Interconnected,nanocapsules,high,doping,stable,capacity,potassium,battery,Carbonaceous,materials,have,drawn,much,attention,batteries,PIBs,due,their,low,price,superior,physicochemical,properties,However,application,carbonaceous,anodes,hindered,by,sluggish,kinetics,large,volume,expansion,Herein,doped,constructed,possesses,frame,work,abundant,meso,macropores,which,guarantees,structural,robustness,accelerates,ions,electrons,transportation,level,matrix,not,only,generates,ample,defects,active,sites,but,also,expands,interlayer,distance,facile,deintercalation,result,electrode,delivers,reversible,mAh,outstanding,capability,favorable,stability,after,cycles,Ex,situ,TEM,Raman,XPS,measurements,demonstrate,excel,lent,reversibility,during,process,This,provides,inspiration,optimization,energy,structure,engineering
AB值：
0.602629
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