Metal-Ion Oligomerization Inside Electrified Carbon Micropores and its Effect on Capacitive Charge Storage

Metal-Ion Oligomerization Inside Electrified Carbon Micropores and its Effect on Capacitive Charge Storage

© 2021 Wiley-VCH GmbH.

Détails bibliographiques
Publié dans:Advanced materials (Deerfield Beach, Fla.). - 1998. - 34(2022), 4 vom: 01. Jan., Seite e2107439
Auteur principal: Wei, Jiaqi (Auteur)
Autres auteurs: Zhong, Lixiang, Xia, Huarong, Lv, Zhisheng, Diao, Caozheng, Zhang, Wei, Li, Xing, Du, Yonghua, Xi, Shibo, Salanne, Mathieu, Chen, Xiaodong, Li, Shuzhou
Format: Article en ligne
Langue:English
Publié: 2022
Accès à la collection:Advanced materials (Deerfield Beach, Fla.)
Sujets:Journal Article electrochemistry ion complex structures ion solvation supercapacitors
LEADER 01000caa a22002652c 4500
001 NLM332396835
003 DE-627
005 20250302150604.0
007 cr uuu---uuuuu
008 231225s2022 xx |||||o 00| ||eng c
024 7 |a 10.1002/adma.202107439  |2 doi 
028 5 2 |a pubmed25n1107.xml 
035 |a (DE-627)NLM332396835 
035 |a (NLM)34699650 
040 |a DE-627  |b ger  |c DE-627  |e rakwb 
041 |a eng 
100 1 |a Wei, Jiaqi  |e verfasserin  |4 aut 
245 1 0 |a Metal-Ion Oligomerization Inside Electrified Carbon Micropores and its Effect on Capacitive Charge Storage 
264 1 |c 2022 
336 |a Text  |b txt  |2 rdacontent 
337 |a ƒaComputermedien  |b c  |2 rdamedia 
338 |a ƒa Online-Ressource  |b cr  |2 rdacarrier 
500 |a Date Revised 27.01.2022 
500 |a published: Print-Electronic 
500 |a Citation Status PubMed-not-MEDLINE 
520 |a © 2021 Wiley-VCH GmbH. 
520 |a Ion adsorption inside electrified carbon micropores is pivotal for the operation of supercapacitors. Depending on the electrolyte, two main mechanisms have been identified so far, the desolvation of ions in solvents and the formation of superionic states in ionic liquids. Here, it is shown that upon confinement inside negatively charged micropores, transition-metal cations dissolved in water associate to form oligomer species. They are identified using in situ X-ray absorption spectroscopy. The cations associate one with each other via hydroxo bridging, forming ionic oligomers under the synergic effect of spatial confinement and Coulombic screening. The oligomers display sluggish dissociation kinetics and accumulate upon cycling, which leads to supercapacitor capacitance fading. They may be dissolved by applying a positive potential, so an intermittent reverse cycling strategy is proposed to periodically evacuate micropores and revivify the capacitance. These results reveal new insights into ion adsorption and structural evolution with their effects on the electrochemical performance, providing guidelines for designing advanced supercapacitors 
650 4 |a Journal Article 
650 4 |a electrochemistry 
650 4 |a ion complex structures 
650 4 |a ion solvation 
650 4 |a supercapacitors 
700 1 |a Zhong, Lixiang  |e verfasserin  |4 aut 
700 1 |a Xia, Huarong  |e verfasserin  |4 aut 
700 1 |a Lv, Zhisheng  |e verfasserin  |4 aut 
700 1 |a Diao, Caozheng  |e verfasserin  |4 aut 
700 1 |a Zhang, Wei  |e verfasserin  |4 aut 
700 1 |a Li, Xing  |e verfasserin  |4 aut 
700 1 |a Du, Yonghua  |e verfasserin  |4 aut 
700 1 |a Xi, Shibo  |e verfasserin  |4 aut 
700 1 |a Salanne, Mathieu  |e verfasserin  |4 aut 
700 1 |a Chen, Xiaodong  |e verfasserin  |4 aut 
700 1 |a Li, Shuzhou  |e verfasserin  |4 aut 
773 0 8 |i Enthalten in  |t Advanced materials (Deerfield Beach, Fla.)  |d 1998  |g 34(2022), 4 vom: 01. Jan., Seite e2107439  |w (DE-627)NLM098206397  |x 1521-4095  |7 nnas 
773 1 8 |g volume:34  |g year:2022  |g number:4  |g day:01  |g month:01  |g pages:e2107439 
856 4 0 |u http://dx.doi.org/10.1002/adma.202107439  |3 Volltext 
912 |a GBV_USEFLAG_A 
912 |a SYSFLAG_A 
912 |a GBV_NLM 
912 |a GBV_ILN_350 
951 |a AR 
952 |d 34  |j 2022  |e 4  |b 01  |c 01  |h e2107439