Guiyuan Yang, Meihong Fan, Qing Liang, Prof. Xingquan He, Prof. Wei Zhang, Prof. Tewodros Asefa
{"title":"原子分散的 Fe2 和 Ni 基底实现高效持久的氧电催化","authors":"Guiyuan Yang, Meihong Fan, Qing Liang, Prof. Xingquan He, Prof. Wei Zhang, Prof. Tewodros Asefa","doi":"10.1002/anie.202421168","DOIUrl":null,"url":null,"abstract":"<p>Developing highly efficient, cost-effective, and robust electrocatalysts for the oxygen reduction reaction (ORR) and the oxygen evolution reaction (OER) is paramount for the large-scale commercialization of renewable fuel cells and rechargeable metal-air batteries. Herein, a new ternary-atom catalyst that is composed of paired Fe sites and single Ni sites (as Fe<sub>2</sub>−N<sub>6</sub> and Ni−N<sub>4</sub>) coordinated onto hollow nitrogen-doped carbon microspheres is developed. The as-synthesized catalyst exhibits remarkable activities toward both the ORR and OER in alkaline media, with superior performances to those of the control materials that contain only Fe<sub>2</sub>−N<sub>6</sub> or Ni−N<sub>4</sub> sites. Density functional theory calculations and in situ infrared (IR) spectroscopic studies clearly reveal that the Fe<sub>2</sub>−N<sub>6</sub> centers are the active sites for both ORR and OER, and their electrocatalytic activities are synergistically enhanced through optimization of their d-band centers by the Ni−N<sub>4</sub> sites. This ternary-atom catalyst can potentially be a promising, alternative, sustainable catalyst to commercially used Pt- and Ru-based catalysts to drive both the ORR and the OER in rechargeable zinc-air batteries and other related applications.</p>","PeriodicalId":125,"journal":{"name":"Angewandte Chemie International Edition","volume":"64 10","pages":""},"PeriodicalIF":16.1000,"publicationDate":"2024-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Atomically Dispersed Fe2 and Ni Sites for Efficient and Durable Oxygen Electrocatalysis\",\"authors\":\"Guiyuan Yang, Meihong Fan, Qing Liang, Prof. Xingquan He, Prof. Wei Zhang, Prof. Tewodros Asefa\",\"doi\":\"10.1002/anie.202421168\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Developing highly efficient, cost-effective, and robust electrocatalysts for the oxygen reduction reaction (ORR) and the oxygen evolution reaction (OER) is paramount for the large-scale commercialization of renewable fuel cells and rechargeable metal-air batteries. Herein, a new ternary-atom catalyst that is composed of paired Fe sites and single Ni sites (as Fe<sub>2</sub>−N<sub>6</sub> and Ni−N<sub>4</sub>) coordinated onto hollow nitrogen-doped carbon microspheres is developed. The as-synthesized catalyst exhibits remarkable activities toward both the ORR and OER in alkaline media, with superior performances to those of the control materials that contain only Fe<sub>2</sub>−N<sub>6</sub> or Ni−N<sub>4</sub> sites. Density functional theory calculations and in situ infrared (IR) spectroscopic studies clearly reveal that the Fe<sub>2</sub>−N<sub>6</sub> centers are the active sites for both ORR and OER, and their electrocatalytic activities are synergistically enhanced through optimization of their d-band centers by the Ni−N<sub>4</sub> sites. This ternary-atom catalyst can potentially be a promising, alternative, sustainable catalyst to commercially used Pt- and Ru-based catalysts to drive both the ORR and the OER in rechargeable zinc-air batteries and other related applications.</p>\",\"PeriodicalId\":125,\"journal\":{\"name\":\"Angewandte Chemie International Edition\",\"volume\":\"64 10\",\"pages\":\"\"},\"PeriodicalIF\":16.1000,\"publicationDate\":\"2024-12-15\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Angewandte Chemie International Edition\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1002/anie.202421168\",\"RegionNum\":1,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Angewandte Chemie International Edition","FirstCategoryId":"92","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/anie.202421168","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
Atomically Dispersed Fe2 and Ni Sites for Efficient and Durable Oxygen Electrocatalysis
Developing highly efficient, cost-effective, and robust electrocatalysts for the oxygen reduction reaction (ORR) and the oxygen evolution reaction (OER) is paramount for the large-scale commercialization of renewable fuel cells and rechargeable metal-air batteries. Herein, a new ternary-atom catalyst that is composed of paired Fe sites and single Ni sites (as Fe2−N6 and Ni−N4) coordinated onto hollow nitrogen-doped carbon microspheres is developed. The as-synthesized catalyst exhibits remarkable activities toward both the ORR and OER in alkaline media, with superior performances to those of the control materials that contain only Fe2−N6 or Ni−N4 sites. Density functional theory calculations and in situ infrared (IR) spectroscopic studies clearly reveal that the Fe2−N6 centers are the active sites for both ORR and OER, and their electrocatalytic activities are synergistically enhanced through optimization of their d-band centers by the Ni−N4 sites. This ternary-atom catalyst can potentially be a promising, alternative, sustainable catalyst to commercially used Pt- and Ru-based catalysts to drive both the ORR and the OER in rechargeable zinc-air batteries and other related applications.
期刊介绍:
Angewandte Chemie, a journal of the German Chemical Society (GDCh), maintains a leading position among scholarly journals in general chemistry with an impressive Impact Factor of 16.6 (2022 Journal Citation Reports, Clarivate, 2023). Published weekly in a reader-friendly format, it features new articles almost every day. Established in 1887, Angewandte Chemie is a prominent chemistry journal, offering a dynamic blend of Review-type articles, Highlights, Communications, and Research Articles on a weekly basis, making it unique in the field.