M. Posadzy , M. García-Rodríguez , J.X. Flores-Lasluisa , A. Moyseowicz , K. Kordek-Khalil , D. Cazorla-Amorós , E. Morallón
{"title":"高性能过渡金属氮化物/碳纳米纤维复合材料作为可充电锌空气电池的正极","authors":"M. Posadzy , M. García-Rodríguez , J.X. Flores-Lasluisa , A. Moyseowicz , K. Kordek-Khalil , D. Cazorla-Amorós , E. Morallón","doi":"10.1016/j.carbon.2025.120308","DOIUrl":null,"url":null,"abstract":"<div><div>Rechargeable zinc-air batteries (ZABs) represent one of the most promising devices for future portable energy storage. However, bifunctional and cost-effective electrocatalysts for oxygen evolution reaction (OER) and oxygen reduction reaction (ORR) need to be developed for practical real-world scenarios.</div><div>This work presents a comprehensive optimisation of the simple and green hydrothermal method to synthesise metal (Co/Fe) nitrides integrated with carbon nanofibers (CNF). The prepared nanocomposites exhibit remarkable electrocatalytic performance in OER and ORR. The combination of both metals in the CoFe–Fe<sub>3</sub>N/CNF material induces the highest bifunctional activity, attributed to a synergistic effect between the metals and the presence of a thin layer of cobalt oxide at the surface. The CNF content in the composite material is optimised, revealing the favourable CNF concentration of 60 wt%. The electrocatalysts with the highest bifunctional activity were evaluated as positive electrodes in ZABs, achieving superior cycling stability compared to a commercial Pt/C–RuO<sub>2</sub> electrocatalyst, and sustaining stability up to 60 h at a current density of 5 mA/cm<sup>2</sup>. These results underline the significant potential of cobalt-iron nitride/carbon nanofiber composites as highly efficient catalysts for oxygen electrochemical reactions and as promising components for improving the performance of rechargeable Zn-air batteries, thus contributing to the advancement of clean energy technologies.</div></div>","PeriodicalId":262,"journal":{"name":"Carbon","volume":"239 ","pages":"Article 120308"},"PeriodicalIF":10.5000,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"High-performance transition metal nitride/carbon nanofiber composites as positive electrode in rechargeable Zn-air batteries\",\"authors\":\"M. Posadzy , M. García-Rodríguez , J.X. Flores-Lasluisa , A. Moyseowicz , K. Kordek-Khalil , D. Cazorla-Amorós , E. Morallón\",\"doi\":\"10.1016/j.carbon.2025.120308\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Rechargeable zinc-air batteries (ZABs) represent one of the most promising devices for future portable energy storage. However, bifunctional and cost-effective electrocatalysts for oxygen evolution reaction (OER) and oxygen reduction reaction (ORR) need to be developed for practical real-world scenarios.</div><div>This work presents a comprehensive optimisation of the simple and green hydrothermal method to synthesise metal (Co/Fe) nitrides integrated with carbon nanofibers (CNF). The prepared nanocomposites exhibit remarkable electrocatalytic performance in OER and ORR. The combination of both metals in the CoFe–Fe<sub>3</sub>N/CNF material induces the highest bifunctional activity, attributed to a synergistic effect between the metals and the presence of a thin layer of cobalt oxide at the surface. The CNF content in the composite material is optimised, revealing the favourable CNF concentration of 60 wt%. The electrocatalysts with the highest bifunctional activity were evaluated as positive electrodes in ZABs, achieving superior cycling stability compared to a commercial Pt/C–RuO<sub>2</sub> electrocatalyst, and sustaining stability up to 60 h at a current density of 5 mA/cm<sup>2</sup>. These results underline the significant potential of cobalt-iron nitride/carbon nanofiber composites as highly efficient catalysts for oxygen electrochemical reactions and as promising components for improving the performance of rechargeable Zn-air batteries, thus contributing to the advancement of clean energy technologies.</div></div>\",\"PeriodicalId\":262,\"journal\":{\"name\":\"Carbon\",\"volume\":\"239 \",\"pages\":\"Article 120308\"},\"PeriodicalIF\":10.5000,\"publicationDate\":\"2025-04-09\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Carbon\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0008622325003240\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Carbon","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0008622325003240","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
High-performance transition metal nitride/carbon nanofiber composites as positive electrode in rechargeable Zn-air batteries
Rechargeable zinc-air batteries (ZABs) represent one of the most promising devices for future portable energy storage. However, bifunctional and cost-effective electrocatalysts for oxygen evolution reaction (OER) and oxygen reduction reaction (ORR) need to be developed for practical real-world scenarios.
This work presents a comprehensive optimisation of the simple and green hydrothermal method to synthesise metal (Co/Fe) nitrides integrated with carbon nanofibers (CNF). The prepared nanocomposites exhibit remarkable electrocatalytic performance in OER and ORR. The combination of both metals in the CoFe–Fe3N/CNF material induces the highest bifunctional activity, attributed to a synergistic effect between the metals and the presence of a thin layer of cobalt oxide at the surface. The CNF content in the composite material is optimised, revealing the favourable CNF concentration of 60 wt%. The electrocatalysts with the highest bifunctional activity were evaluated as positive electrodes in ZABs, achieving superior cycling stability compared to a commercial Pt/C–RuO2 electrocatalyst, and sustaining stability up to 60 h at a current density of 5 mA/cm2. These results underline the significant potential of cobalt-iron nitride/carbon nanofiber composites as highly efficient catalysts for oxygen electrochemical reactions and as promising components for improving the performance of rechargeable Zn-air batteries, thus contributing to the advancement of clean energy technologies.
期刊介绍:
The journal Carbon is an international multidisciplinary forum for communicating scientific advances in the field of carbon materials. It reports new findings related to the formation, structure, properties, behaviors, and technological applications of carbons. Carbons are a broad class of ordered or disordered solid phases composed primarily of elemental carbon, including but not limited to carbon black, carbon fibers and filaments, carbon nanotubes, diamond and diamond-like carbon, fullerenes, glassy carbon, graphite, graphene, graphene-oxide, porous carbons, pyrolytic carbon, and other sp2 and non-sp2 hybridized carbon systems. Carbon is the companion title to the open access journal Carbon Trends. Relevant application areas for carbon materials include biology and medicine, catalysis, electronic, optoelectronic, spintronic, high-frequency, and photonic devices, energy storage and conversion systems, environmental applications and water treatment, smart materials and systems, and structural and thermal applications.