典型文献
Effect of structural variation in biomass-derived nonfluorinated ionic liquids electrolytes on the performance of supercapacitors
文献摘要：
There is a growing interest in sustainable and high performance supercapacitors(SCs)operating at ele-vated temperatures as they are highly demanded in heat-durable electronics.Here,we present a biomass-derived nonfluorinated ionic liquid(IL)[P4444][HFuA]and its structural analogue[P4444][TpA]as electrolytes for supercapacitors comprising multiwall carbon nanotubes and activated charcoal(MWCNTs/AC)mixed carbon composite electrodes.A detailed investigation of the effect of scan rate,tem-perature,potential window and orientation of ions on the electrodes surfaces is performed.The superca-pacitors exhibited relatively lower specific capacitance for both[P4444][HFuA]and[P4444][TpA]ILs at room temperature.However,the specific capacitance has significantly increased with an increase in tem-perature and potential window.The equivalent serie resistances of the SCs is deceased with increasing temperatures,which is a result of improved ionic conductivities of the IL electrolytes.In CV cycling at 60℃,the capacitor with[P4444][HFuA]IL-based electrolyte retained about 90％of its initial capacitance,while the capacitor with[P4444][TpA]IL-based electrolyte retained about 83％of its initial capacitance.Atomistic computations revealed that the aromatic[FuA]-and[TpA]-anions displayed perpendicular distribution that can effectively neutralize charges on the carbon surfaces.However,the[HFuA]-anion exhibited somewhat tilted configurations on the carbon electrode surfaces,contributing to their out-standing capacitive performance in electrochemical devices.
文献关键词：
中图分类号：
作者姓名：
Inayat Ali Khan;Yong-Lei Wang;Faiz Ullah Shah
作者机构：
Chemistry of Interfaces,Lule? University of Technology,SE-97187 Lule?,Sweden;Department of Materials and Environmental Chemistry,Arrhenius Laboratory,Stockholm University,SE-106 91 Stockholm,Sweden
文献出处：
引用格式：
[1]Inayat Ali Khan;Yong-Lei Wang;Faiz Ullah Shah-.Effect of structural variation in biomass-derived nonfluorinated ionic liquids electrolytes on the performance of supercapacitors)[J].能源化学,2022(06):174-184
A类：
nonfluorinated,P4444,HFuA,TpA,superca,serie,Atomistic,FuA
B类：
Effect,structural,variation,biomass,derived,ionic,liquids,electrolytes,performance,supercapacitors,There,growing,interest,sustainable,SCs,operating,temperatures,they,are,highly,demanded,heat,durable,electronics,Here,present,its,analogue,comprising,multiwall,carbon,nanotubes,activated,charcoal,MWCNTs,AC,mixed,composite,electrodes,detailed,investigation,scan,rate,potential,window,orientation,surfaces,performed,exhibited,relatively,lower,specific,capacitance,both,ILs,room,However,has,significantly,increased,equivalent,resistances,deceased,increasing,which,result,improved,conductivities,In,CV,cycling,retained,about,initial,while,computations,revealed,that,aromatic,anions,displayed,perpendicular,distribution,effectively,neutralize,charges,somewhat,tilted,configurations,contributing,their,standing,capacitive,electrochemical,devices
AB值：
0.431185
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