Entropy Enhanced Perovskite Oxide Ceramic for Efficient Electrochemical Reduction of Oxygen to Hydrogen Peroxide

被引：74

作者：

Chen, Ziliang ^{[1
,2
]}

Wu, Jie ^{[1
]}

Chen, Zhengran ^{[3
]}

Yang, Hongyuan ^{[2
]}

Zou, Kai ^{[3
]}

Zhao, Xiangyong ^{[5
]}

Liang, Ruihong ^{[3
]}

Dong, Xianlin ^{[3
]}

Menezes, Prashanth W. ^{[2
,4
]}

Kang, Zhenhui ^{[1
]}

机构：

[1] Soochow Univ, Joint Int Res Lab Carbon Based Funct Mat & Device, Jiangsu Key Lab Carbon Based Funct Mat & Devices, Inst Funct Nano & Soft Mat FUNSOM, Suzhou 215123, Peoples R China

[2] Tech Univ Berlin, Dept Chem Metalorgan & Inorgan Mat, Str 17 Juni 135,Sekr C2, D-10623 Berlin, Germany

[3] Chinese Acad Sci, Shanghai Inst Ceram, Key Lab Inorgan Funct Mat & Devices, 588 Heshuo Rd, Shanghai 201800, Peoples R China

[4] Helmholtz Zentrum Berlin Mat & Energie, Mat Chem Grp Thin Film Catalysis CatLab, Albert Einstein Str 15, D-12489 Berlin, Germany

[5] Shanghai Normal Univ, Dept Phys, Key Lab Optoelect Mat & Device, Shanghai 200234, Peoples R China

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2022年 / 61卷 / 21期

基金：

国家重点研发计划;

关键词：

Electrocatalysis; High Entropy; Hydrogen Peroxide; Oxygen Reduction Reaction; Perovskite Oxide Ceramic; INTERFACE ELECTRON-TRANSFER; EVOLUTION; VACANCIES; CATALYST; CARBIDE;

D O I：

10.1002/anie.202200086

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The electrochemical oxygen reduction reaction (ORR) offers a most promising and efficient route to produce hydrogen peroxide (H2O2), yet the lack of cost-effective and high-performance electrocatalysts have restricted its practical application. Herein, an entropy-enhancement strategy has been employed to enable the low-cost perovskite oxide to effectively catalyze the electrosynthesis of H2O2. The optimized Pb(NiWMnNbZrTi)(1/6)O-3 ceramic is available on a kilogram-scale and displays commendable ORR activity in alkaline media with high selectivity over 91 % across the wide potential range for H2O2 including an outstanding degradation property for organic dyes through the Fenton process. The exceptional performance of this perovskite oxide is attributed to the entropy stabilization-induced polymorphic transformation assuring the robust structural stability, decreased charge mobility as well as synergistic catalytic effects which we confirm using advanced in situ Raman, transient photovoltage, Rietveld refinement as well as finite elemental analysis.

引用

页数：10

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