典型文献
Effect of specifically-adsorbed polysulfides on the electron transfer kinetics of sodium metal anodes
文献摘要：
Room-temperature sodium-sulfur(RT Na-S)batteries hold great promise for large-scale energy storage applications owing to the high energy density and earth-abundance of Na and S.However,the dissolution and migration of sodium polysulfides,uncontrollable Na dendrite growth,and the lack of studies on Na electrodeposition kinetics have hindered the development of these batteries.Herein.we reveal the mech-anism of sodium polysulfides on the Na plating/stripping kinetics using a three-electrode system.First,the kinetic behavior deviates from the commonly supposed Butler-Volmer model,which is well described by the Marcus model.In addition,the specific adsorption of polysulfides on the sodium elec-trode surface is a key factor influencing the kinetics.Higher-order polysulfides(S82--and S62--)exhibit dis-tinct specific adsorption behaviors because of their high adsorption energies compared to lower-order polysulfides(S42--and S22-).The electrostatic effect caused by specific adsorption can accelerate the kinet-ics,whereas the blocking effect can slow the kinetics.Thus,this competitive relationship enables low concentrations of high-order polysulfides to stimulate kinetics.This implies that a weak shuttle effect is beneficial for obtaining a stable Na deposition in RT Na-S batteries.An in-depth understanding of the Na electrodeposition kinetics provides beneficial clues for future metal sodium/electrolyte interface designs.
文献关键词：
中图分类号：
作者姓名：
Huazhao Yang;Yu Li;Xianxian Zhou;Xiaotao Ma;Donghong Duan;Shibin Liu
作者机构：
College of Chemical Engineering and Technology,Taiyuan University of Technology,Taiyuan 030024,Shanxi,China
文献出处：
引用格式：
[1]Huazhao Yang;Yu Li;Xianxian Zhou;Xiaotao Ma;Donghong Duan;Shibin Liu-.Effect of specifically-adsorbed polysulfides on the electron transfer kinetics of sodium metal anodes)[J].能源化学,2022(11):26-33
A类：
S62
B类：
Effect,specifically,adsorbed,polysulfides,electron,transfer,kinetics,sodium,metal,anodes,Room,temperature,sulfur,Na,batteries,hold,great,promise,large,scale,energy,storage,applications,owing,high,density,earth,abundance,However,dissolution,migration,uncontrollable,dendrite,growth,lack,studies,electrodeposition,have,hindered,development,these,Herein,reveal,mech,anism,plating,stripping,using,three,system,First,deviates,from,commonly,supposed,Butler,Volmer,model,which,well,described,by,Marcus,In,addition,adsorption,surface,key,influencing,Higher,order,S82,exhibit,tinct,behaviors,because,their,energies,compared,lower,S42,S22,electrostatic,effect,caused,can,accelerate,whereas,blocking,slow,Thus,this,competitive,relationship,enables,concentrations,stimulate,This,implies,that,weak,shuttle,beneficial,obtaining,stable,An,depth,understanding,provides,clues,future,electrolyte,interface,designs
AB值：
0.585108
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