NiFe2O4 in MoSe2 Exhibits Bifunctional Water Oxidation and Oxygen Reduction (OER and ORR) Catalytic Reactions for Energy Applications
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23640%2F24%3A43972850" target="_blank" >RIV/49777513:23640/24:43972850 - isvavai.cz</a>
Result on the web
<a href="https://pubs.acs.org/doi/10.1021/acsaem.4c01586" target="_blank" >https://pubs.acs.org/doi/10.1021/acsaem.4c01586</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acsaem.4c01586" target="_blank" >10.1021/acsaem.4c01586</a>
Alternative languages
Result language
angličtina
Original language name
NiFe2O4 in MoSe2 Exhibits Bifunctional Water Oxidation and Oxygen Reduction (OER and ORR) Catalytic Reactions for Energy Applications
Original language description
Highly active bifunctional oxygen evolution reaction (OER) and oxygen reduction reaction (ORR) catalysts made of nickel ferrite (NiFe2O4) supported on molybdenum diselenide (MoSe2) nanosheets have been rigorously studied in our present work. The OER activity evaluation was conducted in an alkaline solution for all catalysts. The MoSe2@NiFe2O4 (1:1) catalyst, which had shown superior activity compared to other catalysts, has an onset potential of 1.50 V vs reversible hydrogen electrode (RHE), similar to the state-of-the-art commercial IrO2. The ORR activity of the MoSe2@NiFe2O4 electrocatalyst exhibited an ORR onset potential of 0.83 V vs RHE. We report the MoSe2@NiFe2O4 bifunctional catalyst for noticeable activity in ORR and OER, with a potential difference (Delta E) of 0.92 V. In the accelerated test, after 5000 potential cycles, the MoSe2@NiFe2O4 (1:1) catalyst had about 86% retention of the ORR diffusion-limiting current density. The OER depicts a loss of around 70.6% after 2000 cycles, which is significantly lower than that of the state-of-the-art IrO2, deactivated after 2000 cycles. Harnessing the excellent bifunctionality of our catalyst, we tested the catalyst in the Zn-air battery, which depicts 300 cycles. The Zn-air battery long-term cycling test was performed at 20 mA cm(-2) to assess the stability of the hybrid catalyst (30 min cycle(-1)), which exhibits a discharge voltage of 1.13 V and a charging voltage of 2.20 V. Considering the excellent bifunctional activity, the MoSe2@NiFe2O4 heterostructured composite is an exceptional candidate for energy storage applications.
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
<a href="/en/project/EH22_008%2F0004572" target="_blank" >EH22_008/0004572: Quantum materials for applications in sustainable technologies</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>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
ACS Applied Energy Materials
ISSN
2574-0962
e-ISSN
2574-0962
Volume of the periodical
7
Issue of the periodical within the volume
19
Country of publishing house
US - UNITED STATES
Number of pages
13
Pages from-to
8635-8647
UT code for WoS article
001313027100001
EID of the result in the Scopus database
2-s2.0-85203816147