Cocktail effect in high-entropy perovskite oxide for boosting alkaline oxygen evolution

被引：6

作者：

Hao, Jiace ^{[1
]}

Ma, Fengjun ^{[1
]}

Chen, Yu ^{[1
]}

Lu, Shuanglong ^{[1
]}

Duan, Fang ^{[1
]}

Du, Mingliang ^{[1
]}

Wang, Chenglong ^{[2
]}

Zhang, Wenchao ^{[3
]}

Zhu, Han ^{[1
]}

机构：

[1] Jiangnan Univ, Sch Chem & Mat Engn, Minist Educ, Key Lab Synthet & Biol Colloids, Wuxi 214122, Jiangsu, Peoples R China

[2] Zhejiang Sci Tech Univ, Engn Res Ctr Ecodyeing & Finishing Text, Minist Educ, Hangzhou 310018, Peoples R China

[3] Suzhou Univ Sci & Technol, Sch Chem & Life Sci, Suzhou 215009, Jiangsu, Peoples R China

来源：

NEW JOURNAL OF CHEMISTRY | 2024年 / 48卷 / 02期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1039/d3nj04481e

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Due to the cocktail effect, La0.5Sr0.5Mn0.15Fe0.15Co0.4Ni0.15Cu0.15O3 perovskite oxide hollow nanofibers exhibit excellent intrinsic activity for alkaline oxygen evolution reaction (OER) with a small overpotential of 309 mV (10 mA cm-2). Operando electrochemical Raman spectra provide evidence for the generation of crucial intermediates on specific active sites in this high-entropy oxide system. This work will guide the rational utilization of the cocktail effect in multi-site electrocatalysts. The cocktail effect in La0.5Sr0.5Mn0.15Fe0.15Co0.4Ni0.15Cu0.15O3 perovskite oxide hollow nanofibers leads to an excellent intrinsic activity for the alkaline oxygen evolution reaction (OER) with a small overpotential of 309 mV (10 mA cm-2).

引用

页码：511 / 514

页数：4

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