{"title":"多孔碳包覆掺铁MnO作为高性能锌离子电池阴极","authors":"Guangxing Pan, Zhenyuan Wang, Jichuan Zhang, Miaomiao Cao, Ling Zhang, Jiaheng Zhang","doi":"10.1002/ente.202401690","DOIUrl":null,"url":null,"abstract":"<p>Ion doping is a feasible approach to enhance the stability and cycling performance of manganese-based materials. However, limited research has been conducted on Fe-doped manganese-based oxides. The present study represents the first successful synthesis of a composite material, namely porous carbon-coated Fe-doped MnO (Fe-MnO/C), achieved through annealing FeMn-based metal-organic frameworks. The electrochemical performance is enhanced by Fe doping, as the presence of Mn<span></span>O<span></span>Fe bonds facilitates charge transfer and mitigates structural collapse, thereby resulting in improved rate capability and cycling stability. The Fe-MnO/C-3 cathode achieves a maximum energy density of 249.6 Wh kg<sup>−1</sup> at a power density of 130.6 W kg<sup>−1</sup> and demonstrates a high specific capacity of 134 mAh g<sup>−1</sup> even after undergoing 800 cycles at 1.0 A g<sup>−1</sup>. The study presents a cost-effective and convenient approach to fabricate a high-performance cathode for aqueous zinc-ion batteries.</p>","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 4","pages":""},"PeriodicalIF":3.6000,"publicationDate":"2024-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Porous Carbon-Coated Fe-Doped MnO as High-Performance Cathode for Aqueous Zinc Ion Batteries\",\"authors\":\"Guangxing Pan, Zhenyuan Wang, Jichuan Zhang, Miaomiao Cao, Ling Zhang, Jiaheng Zhang\",\"doi\":\"10.1002/ente.202401690\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Ion doping is a feasible approach to enhance the stability and cycling performance of manganese-based materials. However, limited research has been conducted on Fe-doped manganese-based oxides. The present study represents the first successful synthesis of a composite material, namely porous carbon-coated Fe-doped MnO (Fe-MnO/C), achieved through annealing FeMn-based metal-organic frameworks. The electrochemical performance is enhanced by Fe doping, as the presence of Mn<span></span>O<span></span>Fe bonds facilitates charge transfer and mitigates structural collapse, thereby resulting in improved rate capability and cycling stability. The Fe-MnO/C-3 cathode achieves a maximum energy density of 249.6 Wh kg<sup>−1</sup> at a power density of 130.6 W kg<sup>−1</sup> and demonstrates a high specific capacity of 134 mAh g<sup>−1</sup> even after undergoing 800 cycles at 1.0 A g<sup>−1</sup>. The study presents a cost-effective and convenient approach to fabricate a high-performance cathode for aqueous zinc-ion batteries.</p>\",\"PeriodicalId\":11573,\"journal\":{\"name\":\"Energy technology\",\"volume\":\"13 4\",\"pages\":\"\"},\"PeriodicalIF\":3.6000,\"publicationDate\":\"2024-12-28\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Energy technology\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1002/ente.202401690\",\"RegionNum\":4,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"ENERGY & FUELS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Energy technology","FirstCategoryId":"5","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/ente.202401690","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENERGY & FUELS","Score":null,"Total":0}
引用次数: 0
摘要
离子掺杂是提高锰基材料稳定性和循环性能的可行途径。然而，对铁掺杂锰基氧化物的研究有限。本研究首次成功合成了一种复合材料，即多孔碳包覆铁掺杂MnO (Fe-MnO/C)，该材料是通过退火femn基金属有机骨架实现的。Fe掺杂提高了电化学性能，因为Mn - O - Fe键的存在促进了电荷转移，减轻了结构崩溃，从而提高了速率能力和循环稳定性。在功率密度为130.6 W kg - 1时，Fe-MnO/C-3阴极的最大能量密度为249.6 Wh kg - 1，在1.0 a g - 1下进行800次循环后，比容量仍高达134 mAh g - 1。本研究为制备高性能锌离子电池阴极提供了一种经济、方便的方法。
Porous Carbon-Coated Fe-Doped MnO as High-Performance Cathode for Aqueous Zinc Ion Batteries
Ion doping is a feasible approach to enhance the stability and cycling performance of manganese-based materials. However, limited research has been conducted on Fe-doped manganese-based oxides. The present study represents the first successful synthesis of a composite material, namely porous carbon-coated Fe-doped MnO (Fe-MnO/C), achieved through annealing FeMn-based metal-organic frameworks. The electrochemical performance is enhanced by Fe doping, as the presence of MnOFe bonds facilitates charge transfer and mitigates structural collapse, thereby resulting in improved rate capability and cycling stability. The Fe-MnO/C-3 cathode achieves a maximum energy density of 249.6 Wh kg−1 at a power density of 130.6 W kg−1 and demonstrates a high specific capacity of 134 mAh g−1 even after undergoing 800 cycles at 1.0 A g−1. The study presents a cost-effective and convenient approach to fabricate a high-performance cathode for aqueous zinc-ion batteries.
期刊介绍：
Energy Technology provides a forum for researchers and engineers from all relevant disciplines concerned with the generation, conversion, storage, and distribution of energy.
This new journal shall publish articles covering all technical aspects of energy process engineering from different perspectives, e.g.,
new concepts of energy generation and conversion;
design, operation, control, and optimization of processes for energy generation (e.g., carbon capture) and conversion of energy carriers;
improvement of existing processes;
combination of single components to systems for energy generation;
design of systems for energy storage;
production processes of fuels, e.g., hydrogen, electricity, petroleum, biobased fuels;
concepts and design of devices for energy distribution.
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