CAS OpenIR
Probing Charge Injection-Induced Structural Transition in Ionic Liquids Confined at the MoS2 Surface
Chen, Wei1,2; Lu, Yumiao2; Wang, Yanlei2; Huo, Feng2; Ding, Wei-Lu2; Wei, Li1; He, Hongyan2
2021-06-02
Source PublicationINDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
ISSN0888-5885
Volume60Issue:21Pages:7835-7843
AbstractThe 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.
DOI10.1021/acs.iecr.1c00955
Language英语
WOS KeywordSUPERCAPACITORS ; PERFORMANCE ; INTERFACE ; STATE
Funding ProjectNational 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 Research AreaEngineering
WOS SubjectEngineering, Chemical
Funding OrganizationNational 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
WOS IDWOS:000659430700009
PublisherAMER CHEMICAL SOC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/49215
Collection中国科学院过程工程研究所
Corresponding AuthorLu, Yumiao; Wei, Li; He, Hongyan
Affiliation1.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
Recommended Citation
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.
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