首页|High-entropy oxide (Fe0.2Zn0.2Co0.2Ni0.2Cu0.2)Fe2O4: An efficient and stable spinel-type electrocatalyst for H2O2 production in alkaline media
High-entropy oxide (Fe0.2Zn0.2Co0.2Ni0.2Cu0.2)Fe2O4: An efficient and stable spinel-type electrocatalyst for H2O2 production in alkaline media
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NSTL
Elsevier
? 2022 Elsevier B.V.For the first time, Fe3O4-based high-entropy spinel oxides are studied for the electrochemical production of hydrogen peroxide. Among those investigated substances, (Fe0.2Zn0.2Co0.2Ni0.2Cu0.2) Fe2O4 shows significantly enhanced 2e-ORR electrocatalytic property. The H2O2 selectivity is found to range from 69.48% to 85.78% under a wide potential window of 0.2 ~ 0.65 V with excellent durability up to 24 h. The improved performance is attributed to the high concentration of oxygen vacancies on the material surface and the multicomponent co-interaction in the high-entropy oxide. We believe this finding will broaden the application of high-entropy spinel oxide catalysts for viable electrochemical production of H2O2.
High entropy spinel oxideMulticomponent co-interactionOxygen vacanciesTwo-electron oxygen reduction reaction
Danyang L.、Liping S.、Qiang L.、Tian X.、Lihua H.、Hui Z.
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Key Laboratory of Functional Inorganic Material Chemistry Ministry of Education School of Chemistry and Materials Science Heilongjiang University
NSTL
Elsevier
