An insight Into Surface and Diffusion Characteristics of UiO-66@ZIF-8 Core–Shell MOF for Asymmetric Supercapacitors with Unprecedented Energy Density
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15640%2F24%3A73625123" target="_blank" >RIV/61989592:15640/24:73625123 - isvavai.cz</a>
Result on the web
<a href="https://onlinelibrary.wiley.com/doi/10.1002/adsu.202400043" target="_blank" >https://onlinelibrary.wiley.com/doi/10.1002/adsu.202400043</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/adsu.202400043" target="_blank" >10.1002/adsu.202400043</a>
Alternative languages
Result language
angličtina
Original language name
An insight Into Surface and Diffusion Characteristics of UiO-66@ZIF-8 Core–Shell MOF for Asymmetric Supercapacitors with Unprecedented Energy Density
Original language description
In this study, nanosized zeolitic imidazolate framework-8 (ZIF-8) crystal has been produced on the universitetet i oslo-66 (UiO-66) metal-organic framework (MOF) to make core-shell structure using a layer-by-layer deposition method. In comparison to the pristine UiO-66 and ZIF-8, the core-shell MOF exhibits superior performance in terms of specific capacitance. This enhanced performance is attributed to its remarkable ability to facilitate the rapid diffusion of electrolyte ions through nanosized ZIF-8 and enhance the electron transfer process involving the inner and outer metal ions within the UiO-66@ZIF-8 structure. Remarkably, the core-shell structure achieves an impressive specific capacitance of 588.8 F g-1 at a current density of 0.5 A g-1 using 1 m sulfuric acid (H2SO4) aqueous electrolyte. Additionally, the UiO-66@ZIF-8 core-shell material is demonstrated as a positive electrode, coupled with activated carbon (AC) derived from waste tissue paper serving as the negative electrode, in the fabrication of an asymmetric supercapacitor (ASC) device. At a power density of 400 W kg-1, this assembled asymmetric device delivers a notably high energy density of 53 Wh kg-1 along with a cyclic stability of 94.8% after 10 000 cycles. This study substantiates the superior performance of the UiO-66@ZIF-8 core-shell MOF structure as a highly effective supercapacitor electrode material, surpassing the performance of its pristine MOF counterparts.
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
Advanced Sustainable Systems
ISSN
2366-7486
e-ISSN
2366-7486
Volume of the periodical
8
Issue of the periodical within the volume
9
Country of publishing house
DE - GERMANY
Number of pages
15
Pages from-to
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UT code for WoS article
001227424500001
EID of the result in the Scopus database
2-s2.0-85193327339