Please use this identifier to cite or link to this item: doi:10.22028/D291-30403
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Title: Ion Structure Transition Enhances Charging Dynamics in Subnanometer Pores
Author(s): Mo, Tangming
Bi, Sheng
Zhang, Yuan
Presser, Volker
Wang, Xuehang
Gogotsi, Yury
Feng, Guang
Language: English
Title: ACS nano
Volume: 14
Issue: 2
Startpage: 2395
Endpage: 2403
Publisher/Platform: ACS
Year of Publication: 2020
Place of publication: Washington, DC
Publikation type: Journal Article
Abstract: Using electrodes with subnanometer pores and ionic liquid electrolytes can improve the charge storage capacity at the expense of the charging rate. The fundamental understanding of the charging dynamics of nanoporous electrodes can help to avoid compromising the power density. In this work, we performed molecular dynamics simulations to reveal the charging mechanism of subnanometer pores in ionic liquids. Different from the traditional view that a smaller pore results in slower charging, a non-monotonic relation is found between the charging rate and pore size, in which the charging process is accelerated in some subnanometer pores. Our analysis uncovers that the mechanism of the charging enhancement can be attributed to the transition of in-pore ion structure.
DOI of the first publication: 10.1021/acsnano.9b09648
URL of the first publication:
Link to this record: hdl:20.500.11880/28841
ISSN: 1936-0851
Date of registration: 5-Mar-2020
Faculty: NT - Naturwissenschaftlich- Technische Fakultät
Department: NT - Materialwissenschaft und Werkstofftechnik
Professorship: NT - Prof. Dr. Volker Presser
Collections:UniBib – Die Universitätsbibliographie

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