在电池电池中插入阴离子的多孔阿扎特鲁克森共价有机框架
Sebastian M Pallasch1, Manik Bhosale2, Glen J Smales3
1Department of Chemistry & IRIS Adlershof, Humboldt-Universität zu Berlin, Brook-Taylor-Strasse 2, D-12489 Berlin, Germany.
Journal of the American Chemical Society
|June 13, 2024
概括
这项研究引入了用于先进电池的新型p型共价有机框架 (COF). 这种以阿扎特鲁为基础的COF在和电池中表现出有前途的性能.
科学领域:
- 材料科学
- 电化学
- 能量储存
背景情况:
- 有氧还原活性组的共价有机框架 (COF) 正成为下一代电池的关键材料.
- 据报道,用于存储电荷的p型COF数量有限,对于多价离子电池来说甚至更少.
研究的目的:
- 合成和描述一种新的p型,多孔的,以阿扎特鲁克森为基础的晶体COF.
- 评估合成的COF作为 (Li) 和 (Mg) 电池中的正极材料.
主要方法:
- 合成基于阿扎特鲁克森的高度多孔和晶体的COF.
- 制造COF/碳纳米管 (CNT) 复合电极.
- 在基于的半电池和基于的电池配置中进行电化学测试.
主要成果:
- 基半电池中的COF/CNT电极在2°C时达到3.9V的放电电位,容量高达70mAhg.
- 在Mg电池中,COF电极的平均放电电压为2.9V.
- 在Mg电池中观察到卓越的循环稳定性,即使在5C速度下,在1000个循环中保持84%的容量.
结论:
- 合成的以阿扎特鲁为基础的COF是一种可行的p型电极材料,用于先进的能量存储应用.
- 该材料具有在电池和多价离子电池,特别是电池中使用的潜力,提供高电压和稳定性.
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