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Probing Charge Injection-Induced Structural Transition in Ionic Liquids Confined at the MoS2 Surface

文献类型：期刊论文

作者Chen, Wei1,2; Lu, Yumiao2; Wang, Yanlei2; Huo, Feng2; Ding, Wei-Lu2; Wei, Li1; He, Hongyan2
刊名INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
出版日期2021-06-02
卷号60期号:21页码:7835-7843
ISSN号0888-5885
DOI10.1021/acs.iecr.1c00955
英文摘要The ability to tune structures and properties of interfacial ionic liquids (ILs) using electric fields lies at the heart of modern energy storage technologies, particularly for supercapacitors with ILs as electrolytes. Direct observation of the underlying structural change caused by charge injection is vitally important, but the data are extremely scarce. Here, we propose a general protocol to explore the dynamic structural response of interfacial ILs subjected to charge injection. The experimental results have revealed asymmetric structural evolution of interfacial ILs with a common feature of enhanced mobility during charge injection. Consequently, the surface ILs diffuse and agglomerate into various patterns, which depend critically on both the charge injection mode and initial structural feature. Slow and mild charge injection is advantageous in maintaining structural stability as well as regulating dielectric constants of interfacial ILs. Finally, we unveil the underlying energy conversion from electric energy to thermal energy that governs the structural evolution trend. Our current findings manifest a universal strategy for structural regulation of interfacial ILs via electric fields and open up opportunities for greatly accelerating charging efficiency of supercapacitors for energy storage and harvesting.
WOS关键词SUPERCAPACITORS ; PERFORMANCE ; INTERFACE ; STATE
资助项目National Science Fund for Excellent Young Scholars[21922813] ; National Natural Science Foundation of China[21908221] ; National Natural Science Foundation of China[21890762] ; National Natural Science Foundation of China[21776278] ; Innovation Academy for Green Manufacture, Chinese Academy of Sciences[IAGM2020C16] ; Youth Innovation Promotion Association, Chinese Academy of Sciences[2017066]
WOS研究方向Engineering
语种英语
出版者AMER CHEMICAL SOC
WOS记录号WOS:000659430700009
资助机构National Science Fund for Excellent Young Scholars ; National Natural Science Foundation of China ; Innovation Academy for Green Manufacture, Chinese Academy of Sciences ; Youth Innovation Promotion Association, Chinese Academy of Sciences
源URL[http://ir.ipe.ac.cn/handle/122111/49214]  
专题中国科学院过程工程研究所
通讯作者Lu, Yumiao; Wei, Li; He, Hongyan
作者单位1.Dalian Polytech Univ, Coll Light Ind & Chem Engn, Dalian 116034, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, CAS Key Lab Green Proc & Engn, Beijing Key Lab Ion Liquids Clean Proc, Beijing 100190, Peoples R China
推荐引用方式
GB/T 7714		 Chen, Wei,Lu, Yumiao,Wang, Yanlei,et al. Probing Charge Injection-Induced Structural Transition in Ionic Liquids Confined at the MoS2 Surface[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2021,60(21):7835-7843.
APA Chen, Wei.,Lu, Yumiao.,Wang, Yanlei.,Huo, Feng.,Ding, Wei-Lu.,...&He, Hongyan.(2021).Probing Charge Injection-Induced Structural Transition in Ionic Liquids Confined at the MoS2 Surface.INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,60(21),7835-7843.
MLA Chen, Wei,et al."Probing Charge Injection-Induced Structural Transition in Ionic Liquids Confined at the MoS2 Surface".INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 60.21(2021):7835-7843.

入库方式： OAI收割

来源：过程工程研究所

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