NiFe2O4 in MoSe2 Exhibits Bifunctional Water Oxidation and Oxygen Reduction (OER and ORR) Catalytic Reactions for Energy Applications

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

NiFe2O4 in MoSe2 Exhibits Bifunctional Water Oxidation and Oxygen Reduction (OER and ORR) Catalytic Reactions for Energy Applications

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

NiFe2O4 in MoSe2 Exhibits Bifunctional Water Oxidation and Oxygen Reduction (OER and ORR) Catalytic Reactions for Energy Applications

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)

Projekt

<a href="/cs/project/EH22_008%2F0004572" target="_blank" >EH22_008/0004572: Kvantové materiály pro aplikace v udržitelných technologiích</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

ACS Applied Energy Materials

ISSN

2574-0962

e-ISSN

2574-0962

Svazek periodika

7

Číslo periodika v rámci svazku

19

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

13

Strana od-do

8635-8647

Kód UT WoS článku

001313027100001

EID výsledku v databázi Scopus

2-s2.0-85203816147