典型文献
Mitigation on self-discharge behaviors via morphological control of hierarchical Ni-sulfides/Ni-oxides electrodes for long-life-supercapacitors
文献摘要：
To cope up with the sustainable energy storage goals for supercapacitors(SCs),the self-discharge in SC electrodes is a significant hurdle,and thereby,nickel sulfide(NS)with high conductivity is adopted as a test vehicle for understanding the morphological evolution effects for long-life SCs.Herein,honeycomb-like NS is hierarchically formed over hydrothermally grown nickel oxide(NO)via successive ionic layer adsorption reaction(SILAR)method.Their heterostructure shows a fivefold improvement in specific ca-pacitance from 348 F g-1 to 2077 F g-1 at 1 mV s-1 over bare NO.Furthermore,the remarkable uplift-ment of capacitance retention is achieved from 60.7％to 92.3％even after 3000 cycles via morphological control of NS/NO hetero-structure with the help of highly conductive NS.More importantly,the self-discharge behaviors and synergistic role of leakage current associated with morphological evolution via NS overcoating are studied in detail.In particular,the self-discharge mitigation from 45％(NO)to 35％(NS20/NO)due to the NS/NO heterostructure and the behind mechanism are ascribed to the activated-controlled Faradaic reaction coupled with a charge redistribution.This study emphasizes the potential importance of composite heterostructure by tuning the electrical conductivity and morphological adjust-ment NO via consecutive overcoating of NS through SILAR as a novel strategy.This enhances charge stor-age,redox kinetics,and the mitigation of self-discharge properties of the active electrode materials.For practical validation on sustainable energy storage,NS20/NO supercapacitors illuminate the LED for 35％longer than NO after one-time charging.potentially beneficial for the next generation SCs.
文献关键词：
中图分类号：
作者姓名：
Dhananjay Mishra;Niraj Kumar;Ajit Kumar;Seung Gi Seo;Sung Hun Jin
作者机构：
Department of Electronic Engineering,Incheon National University,Incheon 406-772 and also with Convergence Research Center for Insect Vectors,Incheon National University,Republic of Korea
文献出处：
引用格式：
[1]Dhananjay Mishra;Niraj Kumar;Ajit Kumar;Seung Gi Seo;Sung Hun Jin-.Mitigation on self-discharge behaviors via morphological control of hierarchical Ni-sulfides/Ni-oxides electrodes for long-life-supercapacitors)[J].材料科学技术（英文版）,2022(18):217-228
A类：
pacitance,overcoating,NS20
B类：
Mitigation,self,discharge,behaviors,via,morphological,sulfides,oxides,electrodes,life,supercapacitors,To,cope,sustainable,energy,storage,goals,SCs,significant,hurdle,thereby,nickel,conductivity,adopted,test,vehicle,understanding,evolution,effects,Herein,honeycomb,like,hierarchically,formed,hydrothermally,grown,successive,ionic,layer,adsorption,reaction,SILAR,method,Their,heterostructure,shows,fivefold,improvement,specific,from,mV,bare,Furthermore,remarkable,uplift,capacitance,retention,achieved,even,after,cycles,help,highly,conductive,More,importantly,synergistic,role,leakage,current,associated,studied,detail,In,particular,mitigation,due,behind,mechanism,ascribed,activated,controlled,Faradaic,coupled,redistribution,This,study,emphasizes,importance,composite,tuning,electrical,adjust,consecutive,through,novel,strategy,enhances,redox,kinetics,properties,active,materials,For,practical,validation,illuminate,LED,longer,than,charging,potentially,beneficial,next,generation
AB值：
0.509168
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