Nitrogen-doped mesoporous carbon for high-performance zinc-iodine batteries

IF 4.1 3区化学 Q1 CHEMISTRY, ANALYTICAL

Journal of Electroanalytical Chemistry Pub Date : 2024-11-17 DOI:10.1016/j.jelechem.2024.118798

Mingshuo Zhang, Yangzheng Hou, Yunjie Zhu, Manman Ren, Xiaoxia Cai, Qinze Liu, Congde Qiao, Weiliang Liu, Jinshui Yao

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引用次数: 0

Abstract

Iodine-based aqueous zinc ion (Zn-I₂) batteries have received wider attention due to their excellent electrochemical reversibility, low cost and environmental friendliness. In this work, we report a polymeric nanocomposite with great potential for zinc-ion (Zn-I₂) water battery. Nitrogen-doped mesoporous carbon (NMC) was prepared using phenol, formaldehyde and melamine by a simple and easy sol–gel technique. The rich-pore structure is conducive to improving the adsorption effect of iodine and accelerating the wetting of electrolyte, ensuring the stability of battery during cycling process. The NMC/I₂ cathode material exhibits excellent electrochemical performance, which ensure rapid equilibration of iodine adsorption and dissolution in the electrolyte, showing 80.7 % capacity retention and 91mAh g⁻¹ reversible specific capacity after 100 cycles at 0.1 A g^-1.

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用于高性能锌碘电池的掺氮介孔碳

碘基锌离子（Zn-I2）水电池因其出色的电化学可逆性、低成本和环保性而受到广泛关注。在这项工作中，我们报告了一种在锌离子（Zn-I2）水电池方面具有巨大潜力的聚合物纳米复合材料。采用简单易行的溶胶-凝胶技术，使用苯酚、甲醛和三聚氰胺制备了氮掺杂介孔碳（NMC）。其丰富的孔隙结构有利于提高碘的吸附效果，加速电解液的润湿，确保电池在循环过程中的稳定性。NMC/I2 正极材料表现出优异的电化学性能，确保了电解液中碘吸附和溶解的快速平衡，在 0.1 A g-1 的条件下循环 100 次后显示出 80.7 % 的容量保持率和 91mAh g-1 的可逆比容量。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Electroanalytical Chemistry 化学-电化学

CiteScore

7.80

自引率

6.70%

发文量

912

审稿时长

2.4 months

期刊介绍： The Journal of Electroanalytical Chemistry is the foremost international journal devoted to the interdisciplinary subject of electrochemistry in all its aspects, theoretical as well as applied. Electrochemistry is a wide ranging area that is in a state of continuous evolution. Rather than compiling a long list of topics covered by the Journal, the editors would like to draw particular attention to the key issues of novelty, topicality and quality. Papers should present new and interesting electrochemical science in a way that is accessible to the reader. The presentation and discussion should be at a level that is consistent with the international status of the Journal. Reports describing the application of well-established techniques to problems that are essentially technical will not be accepted. Similarly, papers that report observations but fail to provide adequate interpretation will be rejected by the Editors. Papers dealing with technical electrochemistry should be submitted to other specialist journals unless the authors can show that their work provides substantially new insights into electrochemical processes.