High-entropy oxide (Fe0.2Zn0.2Co0.2Ni0.2Cu0.2)Fe2O4: An efficient and stable spinel-type electrocatalyst for H2O2 production in alkaline media

被引：24

作者：

Danyang, Li ^{[1
]}

Liping, Sun ^{[1
]}

Qiang, Li ^{[1
]}

Tian, Xia ^{[1
]}

Lihua, Huo ^{[1
]}

Hui, Zhao ^{[1
]}

机构：

[1] Heilongjiang Univ, Sch Chem & Mat Sci, Key Lab Funct Inorgan Mat Chem, Minist Educ, Harbin 150080, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2022年 / 913卷

基金：

中国国家自然科学基金;

关键词：

High entropy spinel oxide; Two-electron oxygen reduction reaction; Oxygen vacancies; Multicomponent co-interaction; OXYGEN REDUCTION REACTION; ZN; CATALYST; NANOPARTICLES; PERFORMANCE; SELECTIVITY; VACANCIES; GRAPHENE; HYBRID; FE3O4;

D O I：

10.1016/j.jallcom.2022.165148

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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 similar to 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. (c) 2022 Published by Elsevier B.V.

引用

页数：10

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