协同增强的离子储存通过将高度分散的纳米点封装成N,P,S三化六足动物碳框架
Shimei Wu1, Feng Xu1, Yining Li1
1School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China.
Journal of colloid and interface science
|June 29, 2023
概括
研究人员开发了一种新的三碳材料,用于离子电池 (SIB) 的纳米点. 这种材料表现出极好的性能,为先进的储能解决方案提供了一个有前途的途径.
科学领域:
- 材料科学 材料科学 材料科学
- 电化学 电化学 电化学
- 储能 储能 储能 储能 储能 储能
背景情况:
- 为离子电池 (SIB) 开发原子化碳纳米材料面临重大挑战.
- 优化电化学行为和离子扩散动力学对于高性能SIB阳极至关重要.
研究的目的:
- 为SIBs合成和表征一种新型的三碳材料,用封装的纳米点为SIBs.
- 为了研究该材料作为增强离子储存的阳极的潜力.
主要方法:
- 使用H-ZIF67@聚合物模板策略合成六足的封装N,P,S三碳 (H-Co@NPSC).
- 使用聚甲和4,4'-硫乙) 作为碳和异构原子的来源.
- 材料作为SIB中的阳极的电化学表征.
主要成果:
- 该H-Co@NPSC材料表现出均的纳米点分布和有益的Co-N键,形成一个高度导电的网络.
- 该材料表现出增强的Na+离子扩散动力学,这是由于吸附点的增加和能量障碍的减少.
- 在 450 个循环后 (1 A g-1 时) 达到 311.1 mAh g-1 的可逆容量 (70% 的容量保留),在 200 个循环后 (5 A g-1 时) 达到 237.1 mAh g-1 .
结论:
- 合成的H-Co@NPSC材料显示出优异的电化学性能,作为SIBs的阳极.
- 独特的结构和兴奋剂策略有助于提高离子储存能力和动力学.
- 这项工作为开发下一代离子电池的先进碳阳极材料提供了有前途的途径.
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