{"title":"Eu2O3-modified cobalt nanoparticles supported carbon-based Nanorods for enhanced oxygen reduction reaction performance","authors":"Dandan Jiang, Danyang Wu, Yongze Cao, Xizhen Zhang, Yichao Wang, Baojiu Chen","doi":"10.1016/j.jelechem.2025.119031","DOIUrl":null,"url":null,"abstract":"<div><div>Reasonable modification of transition metal based electrocatalysts to achieve an increase in oxygen reduction reaction (ORR) performance is a critically significant research area, which takes on a crucial part in realizing the replacement of the commercial noble metal catalysts and cutting the expense of rechargeable metal-air batteries. Therefore, a carbon-based nanorods supporting cobalt nanoparticles modified by rare earth Eu is proposed in this work. Compared with Co-NC, the prepared EuCo-NC exhibits exceptional catalytic activity, even exceeding commercial Pt/C. The result show that the addition of Eu<sub>2</sub>O<sub>3</sub> succeed in increasing the activity at the interface of metal particles by adjusting the electronic structure of Co. Meanwhile, the incorporation of Eu<sub>2</sub>O<sub>3</sub> promotes the generation of oxygen vacancies and the adsorption of O<sub>2</sub>, as well as further improve the performance of ORR. This paper presents a productive method of optimizing the activity of transition metal carbon-based catalysts by rare earth modification.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"983 ","pages":"Article 119031"},"PeriodicalIF":4.1000,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Electroanalytical Chemistry","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1572665725001043","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/2/21 0:00:00","PubModel":"Epub","JCR":"Q1","JCRName":"CHEMISTRY, ANALYTICAL","Score":null,"Total":0}
引用次数: 0
Abstract
Reasonable modification of transition metal based electrocatalysts to achieve an increase in oxygen reduction reaction (ORR) performance is a critically significant research area, which takes on a crucial part in realizing the replacement of the commercial noble metal catalysts and cutting the expense of rechargeable metal-air batteries. Therefore, a carbon-based nanorods supporting cobalt nanoparticles modified by rare earth Eu is proposed in this work. Compared with Co-NC, the prepared EuCo-NC exhibits exceptional catalytic activity, even exceeding commercial Pt/C. The result show that the addition of Eu2O3 succeed in increasing the activity at the interface of metal particles by adjusting the electronic structure of Co. Meanwhile, the incorporation of Eu2O3 promotes the generation of oxygen vacancies and the adsorption of O2, as well as further improve the performance of ORR. This paper presents a productive method of optimizing the activity of transition metal carbon-based catalysts by rare earth modification.
期刊介绍：
The Journal of Electroanalytical Chemistry is the foremost international journal devoted to the interdisciplinary subject of electrochemistry in all its aspects, theoretical as well as applied.
Electrochemistry is a wide ranging area that is in a state of continuous evolution. Rather than compiling a long list of topics covered by the Journal, the editors would like to draw particular attention to the key issues of novelty, topicality and quality. Papers should present new and interesting electrochemical science in a way that is accessible to the reader. The presentation and discussion should be at a level that is consistent with the international status of the Journal. Reports describing the application of well-established techniques to problems that are essentially technical will not be accepted. Similarly, papers that report observations but fail to provide adequate interpretation will be rejected by the Editors. Papers dealing with technical electrochemistry should be submitted to other specialist journals unless the authors can show that their work provides substantially new insights into electrochemical processes.
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