Synergized Multimetal Oxides with Amorphous/Crystalline Heterostructure as Efficient Electrocatalysts for Lithium-Oxygen Batteries
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27710%2F21%3A10249622" target="_blank" >RIV/61989100:27710/21:10249622 - isvavai.cz</a>
Result on the web
<a href="https://www.webofscience.com/wos/woscc/full-record/WOS:000642117600001" target="_blank" >https://www.webofscience.com/wos/woscc/full-record/WOS:000642117600001</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/aenm.202100110" target="_blank" >10.1002/aenm.202100110</a>
Alternative languages
Result language
angličtina
Original language name
Synergized Multimetal Oxides with Amorphous/Crystalline Heterostructure as Efficient Electrocatalysts for Lithium-Oxygen Batteries
Original language description
High theoretical specific energy of rechargeable lithium-oxygen (Li-O-2) batteries makes them very promising in the development of long driving range electric vehicles and energy storage on large-scale. However, the large polarization and poor cycling stability associated with insufficient catalytic cathodes and the insulating nature of discharge products limit their practical applications. Here, the fabrication of a trimetallic CoFeCe oxide with an amorphous/crystalline heterostructure acting as an electrocatalyst for the Li-O-2 battery cathode is reported. The best-performing CoFeCe oxide cathode manages to deliver an initial discharge capacity of 12 340 mAh g(-1), while maintaining an impressively enhanced cyclic stability over 2900 h at 100 mA g(-1). As revealed by combined experimental results and density functional theory (DFT) analysis, synergistic interaction between oxide components, amorphous-crystalline domains, unique heterostructure with minimized lattice mismatch, and the enhanced adsorption of the key intermediate LiO2 are critical factors in boosting the electrocatalytic activity of CoFeCe toward the formation of decomposable Li2O2. This work offers a new insight to rationally design and synthesize an effective multimetal oxide electrocatalyst for the Li-O-2 battery cathode.
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
20400 - Chemical engineering
Result continuities
Project
<a href="/en/project/EF16_019%2F0000853" target="_blank" >EF16_019/0000853: Institute of Environmental Technology - Excellent Research</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Advanced Energy Materials
ISSN
1614-6832
e-ISSN
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Volume of the periodical
11
Issue of the periodical within the volume
22
Country of publishing house
DE - GERMANY
Number of pages
9
Pages from-to
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UT code for WoS article
000642117600001
EID of the result in the Scopus database
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