Unraveling the Surface-Diffusion Charge Contribution Studies of Zeolitic-Imidazolate-Frameworks-Based Core-Shell Structure for High-Performance Hybrid Supercapacitors
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15640%2F24%3A73625972" target="_blank" >RIV/61989592:15640/24:73625972 - isvavai.cz</a>
Result on the web
<a href="https://onlinelibrary.wiley.com/doi/10.1002/ente.202400722" target="_blank" >https://onlinelibrary.wiley.com/doi/10.1002/ente.202400722</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/ente.202400722" target="_blank" >10.1002/ente.202400722</a>
Alternative languages
Result language
angličtina
Original language name
Unraveling the Surface-Diffusion Charge Contribution Studies of Zeolitic-Imidazolate-Frameworks-Based Core-Shell Structure for High-Performance Hybrid Supercapacitors
Original language description
In this work, zeolitic imidazolate frameworks (ZIF-8@ZIF-67)-based core-shell structure as a supercapacitor electrode is synthesized. The core-shell structure is designed with a ZIF-8 core, onto which a ZIF-67 shell is grown. This unique architecture aims to expedite the diffusion of electrolyte ions, facilitate inner-outer metal ion electron transfer, and consequently enhance electrochemical performance. When used as an active electrode material, the material delivers 263.43 F g-1 of capacitance at 0.5 A g-1 of discharge rate. The core-shell structure exhibits 68% of surface contribution toward the total capacitance. At the scan rate of 50 mV s-1, the sample almost exhibits equal contribution of diffusion and surface charge contribution. Further an asymmetric supercapacitor (ASC) device is assembled, featuring a ZIF-8@ZIF-67 core-shell metal-organic framework (MOF) as a positive electrode and waste-tissue-paper-derived activated carbon as negative electrode using 1 m H2SO4 aqueous electrolyte. The ASC device delivers an energy density of 38.4 Wh kg-1 at the power density of 0.8 kW kg-1, along with long cycle life of 95.2% after an extensive 10 000 cycles. In this work, the significance of the ZIF-based core-shell structure in advancing supercapacitor technology, which further can be extended to multiple core-shell structure and other MOF combination, is highlighted.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Energy Technology
ISSN
2194-4288
e-ISSN
2194-4296
Volume of the periodical
12
Issue of the periodical within the volume
10
Country of publishing house
DE - GERMANY
Number of pages
13
Pages from-to
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UT code for WoS article
001272329500001
EID of the result in the Scopus database
2-s2.0-85198993246