释放基于甲基的二维共价有机框架 (2D COF) 的电荷储存潜力
Tyran Günther1, Daniel Hedbom1, Michelle Åhlén1
1Department of Materials Science and Engineering - Nanotechnology and Functional Materials, Uppsala University, Box 35, SE-751 03, Uppsala, Sweden.
ChemPlusChem
|June 5, 2024
概括
用EDOT修改了化学稳固的共价有机框架 (COF),以增强电荷存储. 由此产生的复合材料显示出在水性电池中作为阳极的潜力.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
- 电化学 电化学 电化学
背景情况:
- 联有机框架 (COF) 具有理想的特性,如高表面积和有序结构,使其成为功能材料的有希望的材料.
- 开发高效的电荷储存材料对于能源应用至关重要.
- 原始COF的电荷储存能力可能受到诸如氧化回氧站点可访问性等因素的限制.
研究的目的:
- 为了合成一种化学稳固的2D COF (TpOMe-DAPQ COF) 与氨基分片.
- 通过使用EDOT进行现场聚合,提高COF的电荷储存能力.
- 为了评估复合材料作为水性电池中阳极的性能.
主要方法:
- 来自TpOMe和DAPQ的TpOMe-DAPQ COF的机械化学合成.
- 调研氧化还原现场可访问性 (RSA) 以指导导电导性增强.
- 在COF支架上EDOT的现场聚合.
- 复合材料的特征 (0.4EDOT@TpOMe-DAPQ). 复合材料的特征 (0.4EDOT@TpOMe-DAPQ). 复合材料的特征包括:
- 电化学测试作为水性Mn杯式电池中的阳极.
主要成果:
- 一种化学稳固的2D COF,TpOMe-DAPQ COF,已经成功地准备好.
- 在现场EDOT聚合后,COF的电荷储存能力得到了显著的改善.
- 复合材料 (0.4EDOT@TpOMe-DAPQ) 作为有效的阳极,在水性Mn杯式电池中提供0.76V.
- 该研究强调了优化氧化还原站点可访问性的重要性,以提高性能.
结论:
- 基于COF的材料的合理设计和合成可以带来更好的电荷存储能力.
- 在现场聚合提供了一个可行的策略,可以从COF中创建功能复合材料.
- 开发的复合材料显示出在水性电池技术中应用的前景.
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