{"title":"轻松合成用于增强碱性氧还原反应的 Co1-xZnxFe2O4 尖晶石氧化物","authors":"Xufeng Yang, Yufei Wang, Shun Li, Dongdong Chen, Tanlai Yu, Zhenyuan Liu, Xian Jiang","doi":"10.1016/j.fuel.2024.132398","DOIUrl":null,"url":null,"abstract":"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 (CoZnFeO) 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 CoZnFeO exhibits not only the most excellent ORR activity (half-wave potential: 0.815 V and Tafel slope: 76 mV dec) 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 CoZnFeO 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.","PeriodicalId":325,"journal":{"name":"Fuel","volume":null,"pages":null},"PeriodicalIF":6.7000,"publicationDate":"2024-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Facile synthesis of Co1-xZnxFe2O4 spinel oxides for enhanced alkaline oxygen reduction reaction\",\"authors\":\"Xufeng Yang, Yufei Wang, Shun Li, Dongdong Chen, Tanlai Yu, Zhenyuan Liu, Xian Jiang\",\"doi\":\"10.1016/j.fuel.2024.132398\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"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 (CoZnFeO) 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 CoZnFeO exhibits not only the most excellent ORR activity (half-wave potential: 0.815 V and Tafel slope: 76 mV dec) 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 CoZnFeO 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.\",\"PeriodicalId\":325,\"journal\":{\"name\":\"Fuel\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":6.7000,\"publicationDate\":\"2024-07-04\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Fuel\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://doi.org/10.1016/j.fuel.2024.132398\",\"RegionNum\":1,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"ENERGY & FUELS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Fuel","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1016/j.fuel.2024.132398","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENERGY & FUELS","Score":null,"Total":0}
Facile synthesis of Co1-xZnxFe2O4 spinel oxides for enhanced alkaline oxygen reduction reaction
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 (CoZnFeO) 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 CoZnFeO exhibits not only the most excellent ORR activity (half-wave potential: 0.815 V and Tafel slope: 76 mV dec) 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 CoZnFeO 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.
期刊介绍：
The exploration of energy sources remains a critical matter of study. For the past nine decades, fuel has consistently held the forefront in primary research efforts within the field of energy science. This area of investigation encompasses a wide range of subjects, with a particular emphasis on emerging concerns like environmental factors and pollution.
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