Facile synthesis of Co1-xZnxFe2O4 spinel oxides for enhanced alkaline oxygen reduction reaction

被引：0

作者：

Yang, Xufeng ^{[1
]}

Wang, Yufei ^{[3
]}

Li, Shun ^{[2
]}

Chen, Dongdong ^{[1
]}

Yu, Tanlai ^{[1
,4
]}

Liu, Zhenyuan ^{[2
]}

Jiang, Xian ^{[3
]}

机构：

[1] Lyuliang Univ, Dept Chem & Mat Engn, Lvliang 033001, Shanxi, Peoples R China

[2] Jiangsu Univ Sci & Technol, Sch Mat Sci & Engn, Zhenjiang 212100, Jiangsu, Peoples R China

[3] Nanjing Univ Sci & Technol, Sch New Energy, Jiangyin 214443, Jiangsu, Peoples R China

[4] Inst New Carbon Based Mat & Zerocarbon & Negat Car, Lvliang 033001, Shanxi, Peoples R China

来源：

FUEL | 2024年 / 373卷

基金：

中国国家自然科学基金;

关键词：

Cobalt and zinc ferrites; Spinel-type oxides; Electrocatalyst; Oxygen reduction reaction; ZN-SUBSTITUTED COFE2O4; MESOPOROUS CARBON; NANOPARTICLES; ELECTROCATALYSTS; NANOSPHERES; CO;

D O I：

10.1016/j.fuel.2024.132398

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The development of efficient inexpensive catalysts for the oxygen reduction reaction (ORR) is one of the keys to the realization of energy conversion devices. Herein, we have synthesized a series of spinel-type metal oxides (Co1-xZnxFe2O4) by varying the amount of Zn substitution (x = 0, 0.2, 0.4, 0.6, 0.8, 1.0) using a simple one-step co-precipitation method. A combination of structural characterization and electrochemical analysis shows that the Co0.6Zn0.4Fe2O4 exhibits not only the most excellent ORR activity (half-wave potential: 0.815 V and Tafel slope: 76 mV dec-1) compared to the other samples with different Zn substitution but also the better stability than that of commercial Pt/C catalyst. The improved reason of ORR performance for the Co0.6Zn0.4Fe2O4 nanoparticles may be attributed to the Zn introduction and abundant oxygen vacancies. These discoveries will offer insights for exploring the synthesis of spinel-type oxides for their potential applications in oxygen-related energy conversion technologies.

引用

页数：8

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