多孔碳涂层 SnO2 纳米板的制备及其锂储存性能的改进

IF 2.8 3区 化学 Q3 CHEMISTRY, PHYSICAL Chemical Physics Letters Pub Date : 2024-11-03 DOI:10.1016/j.cplett.2024.141737
Dian Yang , Chao Li , Zhengyan Jiang , Jizhang Chen , Mengru Chen , Qinghua Tian
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引用次数: 0

摘要

为了克服二氧化锰正极所面临的问题,本研究利用超薄二维纳米结构和表面碳涂层的优点,通过一种简单而新颖的水热辅助方法制备了多孔碳涂层二氧化锰纳米板(SnO2@C)。该方法的新颖之处在于,制备 SnO2 和引入孔制作 SiO2 模板这两个通常需要分步实现的过程在一个水热过程中就能成功完成,因此相对简单。研究结果表明,SnO2@C 在循环过程中表现出更好的动力学性能、稳定的结构和富含锂F的 SEI 层,从而展现出卓越的锂存储性能。
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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Preparation of porous carbon-coated SnO2 nanoplates and their improved lithium storage
To overcome the problems SnO2 anode faced, this work prepares porous carbon-coated SnO2 nanoplates (SnO2@C) on account of the advantages of ultrathin two-dimensional nanostructure and carbon coating on the surface, which is achieved through a simple and novel hydrothermal-assisted method. The novelty of this method is that preparing SnO2 and introducing hole making SiO2 template, which are generally achieved in steps, are successfully completed in a single hydrothermal process, thus showing relative simplicity. The results confirm that the SnO2@C shows improved kinetics, stable structure and a LiF-rich SEI layer during cycling, thereby exhibiting outstanding lithium storage performance.
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来源期刊
Chemical Physics Letters
Chemical Physics Letters 化学-物理:原子、分子和化学物理
CiteScore
5.70
自引率
3.60%
发文量
798
审稿时长
33 days
期刊介绍: Chemical Physics Letters has an open access mirror journal, Chemical Physics Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. Chemical Physics Letters publishes brief reports on molecules, interfaces, condensed phases, nanomaterials and nanostructures, polymers, biomolecular systems, and energy conversion and storage. Criteria for publication are quality, urgency and impact. Further, experimental results reported in the journal have direct relevance for theory, and theoretical developments or non-routine computations relate directly to experiment. Manuscripts must satisfy these criteria and should not be minor extensions of previous work.
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