Chuyun Huang, Wenyuan Zhang, Xuezhi Hu, Shiliang Fei, Fhulufhelo Nemangwele, Nnditshedzeni Eric Maluta, Yangsen Hu, Hui Lv, Pei Hu and Zhuo Peng
{"title":"封装在空心碳纳米盒中的铁/Fe3C 粒子用于高性能锌-空气电池","authors":"Chuyun Huang, Wenyuan Zhang, Xuezhi Hu, Shiliang Fei, Fhulufhelo Nemangwele, Nnditshedzeni Eric Maluta, Yangsen Hu, Hui Lv, Pei Hu and Zhuo Peng","doi":"10.1039/D4DT02396J","DOIUrl":null,"url":null,"abstract":"<p >Zinc–air batteries are recognized for their environmental friendliness and high energy density; however, the slow kinetics of the oxygen reduction reaction (ORR) at the air electrode hinder their commercial viability. The research focuses on synthesizing cubic hollow carbon structures derived from Metal–Organic Frameworks (MOFs), which enhance catalytic performance through improved conductivity and mass transfer. The resulting Fe/Fe<small><sub>3</sub></small>C/HCNB catalyst demonstrates a half-wave potential of 0.826 V for ORR and achieves a peak power density of 274 mW cm<small><sup>−2</sup></small> in zinc–air batteries, surpassing commercial Pt/C catalysts. Electrochemical impedance spectroscopy reveals that the hollow structure enhances hydrophilicity and reduces solution resistance, facilitating greater active site engagement in electrochemical reactions. The study concludes that the unique structural features of Fe/Fe<small><sub>3</sub></small>C/HCNB significantly improve discharge performance and stability, positioning it as a promising alternative for zinc–air battery applications.</p>","PeriodicalId":71,"journal":{"name":"Dalton Transactions","volume":" 48","pages":" 19378-19387"},"PeriodicalIF":3.5000,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Fe/Fe3C particles encapsulated in hollow carbon nanoboxes for high performance zinc–air batteries†\",\"authors\":\"Chuyun Huang, Wenyuan Zhang, Xuezhi Hu, Shiliang Fei, Fhulufhelo Nemangwele, Nnditshedzeni Eric Maluta, Yangsen Hu, Hui Lv, Pei Hu and Zhuo Peng\",\"doi\":\"10.1039/D4DT02396J\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p >Zinc–air batteries are recognized for their environmental friendliness and high energy density; however, the slow kinetics of the oxygen reduction reaction (ORR) at the air electrode hinder their commercial viability. The research focuses on synthesizing cubic hollow carbon structures derived from Metal–Organic Frameworks (MOFs), which enhance catalytic performance through improved conductivity and mass transfer. The resulting Fe/Fe<small><sub>3</sub></small>C/HCNB catalyst demonstrates a half-wave potential of 0.826 V for ORR and achieves a peak power density of 274 mW cm<small><sup>−2</sup></small> in zinc–air batteries, surpassing commercial Pt/C catalysts. Electrochemical impedance spectroscopy reveals that the hollow structure enhances hydrophilicity and reduces solution resistance, facilitating greater active site engagement in electrochemical reactions. The study concludes that the unique structural features of Fe/Fe<small><sub>3</sub></small>C/HCNB significantly improve discharge performance and stability, positioning it as a promising alternative for zinc–air battery applications.</p>\",\"PeriodicalId\":71,\"journal\":{\"name\":\"Dalton Transactions\",\"volume\":\" 48\",\"pages\":\" 19378-19387\"},\"PeriodicalIF\":3.5000,\"publicationDate\":\"2024-11-08\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Dalton Transactions\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://pubs.rsc.org/en/content/articlelanding/2024/dt/d4dt02396j\",\"RegionNum\":3,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, INORGANIC & NUCLEAR\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Dalton Transactions","FirstCategoryId":"92","ListUrlMain":"https://pubs.rsc.org/en/content/articlelanding/2024/dt/d4dt02396j","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, INORGANIC & NUCLEAR","Score":null,"Total":0}
Fe/Fe3C particles encapsulated in hollow carbon nanoboxes for high performance zinc–air batteries†
Zinc–air batteries are recognized for their environmental friendliness and high energy density; however, the slow kinetics of the oxygen reduction reaction (ORR) at the air electrode hinder their commercial viability. The research focuses on synthesizing cubic hollow carbon structures derived from Metal–Organic Frameworks (MOFs), which enhance catalytic performance through improved conductivity and mass transfer. The resulting Fe/Fe3C/HCNB catalyst demonstrates a half-wave potential of 0.826 V for ORR and achieves a peak power density of 274 mW cm−2 in zinc–air batteries, surpassing commercial Pt/C catalysts. Electrochemical impedance spectroscopy reveals that the hollow structure enhances hydrophilicity and reduces solution resistance, facilitating greater active site engagement in electrochemical reactions. The study concludes that the unique structural features of Fe/Fe3C/HCNB significantly improve discharge performance and stability, positioning it as a promising alternative for zinc–air battery applications.
期刊介绍:
Dalton Transactions is a journal for all areas of inorganic chemistry, which encompasses the organometallic, bioinorganic and materials chemistry of the elements, with applications including synthesis, catalysis, energy conversion/storage, electrical devices and medicine. Dalton Transactions welcomes high-quality, original submissions in all of these areas and more, where the advancement of knowledge in inorganic chemistry is significant.