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Electrochemical Activity of Nitrogen-Containing Groups in Organic Electrode Materials and Related Improvement Strategies

机译：有机电极材料中含氮基团的电化学活性及相关改善策略

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摘要

In recent years, due to their structural diversity, adjustability, versatility, and excellent electrochemical properties, organic compounds with nitrogen-containing groups (OCNs) have become some of the most promising organic electrode materials. The nitrogen-containing groups acting as electrochemical active sites include carbon-nitrogen groups, nitrogen-nitrogen groups, nitrogen-oxygen groups in OCNs, and nitrogen-containing groups in covalent organic frameworks. The molecular structure regulation of OCNs with nitrogen-containing groups acting as electrochemical active centers can suppress dissolution in electrolytes, increase electronic conductivity, and improve the kinetics of redox reactions. The kinetics behavior and electrochemical characteristics of OCN electrode materials in alkali metal rechargeable batteries with organic electrolytes are reviewed, and the related relationships between the structure and electrochemical properties of OCNs are the core of this review. Herein, the electrochemical reaction mechanisms and the strategies to improve the electrochemical activity of nitrogen-containing groups in OCNs are clarified, and the conjugate molecular structure of OCNs is shown to be an important direction for improvement. These results will have implications for research on electrode materials and provide more choices for rechargeable batteries. Moreover, this work will guide the study of more efficient OCNs that can be used as electrode materials.
机译：近年来，由于其结构多样性，可调节性，通用性和优异的电化学性质，具有含氮基团（OCNS）的有机化合物已成为一些最有前途的有机电极材料。作为电化学活性位点的含氮基团包括碳 - 氮基团，氮氮基，氮 - 氧基，在ocnns中的含氮基团，共价有机骨架中的含氮基团。用作电化学活性中心的含氮基团的OCN的分子结构调节可以抑制电解质中的溶解，增加电子导电性，并改善氧化还原反应的动力学。综述了碱金属可充电电池中OCN电极材料的动力学行为和电化学特性，以及OCNS结构和电化学性质之间的相关关系是本综述的核心。本文，阐明了电化学反应机制和改善含氮基团电化学活性的策略，并显示OCN的共轭分子结构是改进的重要方向。这些结果将对电极材料的研究产生影响，并为可充电电池提供更多选择。此外，这项工作将指导研究可以用作电极材料的更高效的OCN。

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  • 来源
    《Advanced energy materials》 |2021年第7期|2002523.1-2002523.25|共25页
  • 作者

    Yu Qianchuan; Xue Zhihuan; Li Meichen; Qiu Peimeng; Li Changgang; Wang Shengping; Yu Jingxian; Nara Hiroki; Na Jongbeom; Yamauchi Yusuke;

  • 作者单位

    China Univ Geosci Fac Mat Sci & Chem Wuhan 430074 Peoples R China;

    China Univ Geosci Fac Mat Sci & Chem Wuhan 430074 Peoples R China;

    China Univ Geosci Fac Mat Sci & Chem Wuhan 430074 Peoples R China;

    China Univ Geosci Fac Mat Sci & Chem Wuhan 430074 Peoples R China;

    China Univ Geosci Fac Mat Sci & Chem Wuhan 430074 Peoples R China;

    China Univ Geosci Fac Mat Sci & Chem Wuhan 430074 Peoples R China;

    Univ Adelaide ARC Ctr Excellence Nanoscale BioPhoton CNBP Sch Chem & Phys Adelaide SA 5005 Australia;

    Waseda Univ Res Org Nano & Life Innovat Shinjuku Ku 513 Waseda Tsurumaki Cho Tokyo 1620041 Japan|Waseda Univ JST ERATO Yamauchi Mat Space Tecton Project Kagami Mem Res Inst Mat Sci & Technol Shinjuku Ku 2-8-26 Nishiwaseda Tokyo 1690051 Japan;

    Univ Queensland Sch Chem Engn Brisbane Qld 4072 Australia;

    Waseda Univ JST ERATO Yamauchi Mat Space Tecton Project Kagami Mem Res Inst Mat Sci & Technol Shinjuku Ku 2-8-26 Nishiwaseda Tokyo 1690051 Japan|Univ Queensland Sch Chem Engn Brisbane Qld 4072 Australia|Univ Queensland Australian Inst Bioengn & Nanotechnol AIBN Brisbane Qld 4072 Australia|Natl Inst Mat Sci NIMS JST ERATO Yamauchi Mat Space Tecton Project Int Ctr Mat Nanoarchitecton MANA 1-1 Namiki Tsukuba Ibaraki 3050044 Japan;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    covalent organic frameworks; electrochemical activity; electrode materials; nitrogen-containing groups;

    机译：共价有机框架;电化学活性;电极材料;含氮基团;

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