典型文献
Electrochemical Role of Transition Metals in Sn-Fe Alloy Revealed by Operando Magnetometry
文献摘要:
As promising materials,alloy-type anode materials have been intensively investigated in both academia and industry.To release huge volume expansion during alloying/dealloying process,they are usually doped with transition metals.However,the electrochemical role of transition metals has not been fully understood.Here,pure Sn3Fe films were deposited by sputtering,and the electrochemical mechanism was systematically investigated by operando magnetometry.We confirmed that Fe particles liberated by Li insertion recombine partially with Sn during the delithiation,while the stepwise increase in magnetization with the cycles demonstrates growth of Fe nanoparticles.In addition,we also found an unconventional increase of magnetization in the charging process,which can be attributed to the space charge storage at the interface of Fe/LixSn.These critical findings pave the way for the mechanism understanding and development of high-performance Sn based alloy electrode materials.
文献关键词:
中图分类号:
作者姓名:
Le-Qing Zhang;Qing-Tao Xia;Zhao-Hui Li;Yuan-Yuan Han;Xi-Xiang Xu;Xin-Long Zhao;Xia Wang;Yuan-Yuan Pan;Hong-Sen Li;Qiang Li
作者机构:
College of Physics,Qingdao University,Qingdao 266071,China;Weihai Innovation Institute,Qingdao University,Weihai 264200,China
文献出处:
引用格式:
[1]Le-Qing Zhang;Qing-Tao Xia;Zhao-Hui Li;Yuan-Yuan Han;Xi-Xiang Xu;Xin-Long Zhao;Xia Wang;Yuan-Yuan Pan;Hong-Sen Li;Qiang Li-.Electrochemical Role of Transition Metals in Sn-Fe Alloy Revealed by Operando Magnetometry)[J].中国物理快报(英文版),2022(02):103-107,后插1-后插2
A类:
Magnetometry,Sn3Fe,LixSn
B类:
Electrochemical,Role,Transition,Metals,Alloy,Revealed,by,Operando,promising,materials,type,anode,have,been,intensively,investigated,both,academia,industry,To,release,huge,volume,expansion,during,dealloying,process,they,are,usually,doped,transition,metals,However,electrochemical,role,has,not,fully,understood,Here,pure,films,were,deposited,sputtering,mechanism,was,systematically,operando,magnetometry,We,confirmed,that,liberated,insertion,recombine,partially,delithiation,while,stepwise,increase,magnetization,cycles,demonstrates,growth,nanoparticles,In,addition,also,found,unconventional,charging,which,can,attributed,space,charge,storage,interface,These,critical,findings,pave,way,understanding,development,high,performance,electrode
AB值:
0.667642
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