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通过使用分子打印聚合物――从到双的增强路径,提高C-C合产品电合成的选择性
Alcina Johnson Sudagar1, Shuai Shao2, Teresa Żołek3
1Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland.
ACS applied materials & interfaces
|October 12, 2023
概括
我们开发了一种对2,4-二甲基 (DMPh) 到3,3的选择性电氧化程序.
科学领域:
- 电化学 电化学 电化学
- 聚合物科学 聚合物科学
- 有机合成 有机合成
背景情况:
- 选择性合成C-C合产品,如3,3',5,5'-四甲-2,2'-双 (TMBh) 是一个挑战.
- 分子印记聚合物 (MIP) 为选择性分子识别和合成提供了潜力.
- 2,4-二甲基 (DMPh) 的直接电氧化需要 TMBh 生产的高效方法.
研究的目的:
- 使用MIP涂层电极开发DMPh到TMBh的选择性电氧化过程.
- 调查功能单体和模板相互作用在MIP性能中的作用.
- 优化电合成参数,以提高TMBh产量和选择性.
主要方法:
- 通过使用TMBh作为模板的潜在动力学电聚合制造在电极表面上制造MIP.
- 密度函数理论 (DFT) 模拟和光谱技术来选择最佳的功能单体.
- 电化学表征 (循环电压测量,时测量) 和MIP薄膜的表面分析 (FTIR,AFM).
- 在MIP涂层电极上对DMPh进行选择性电氧化,并与非印制聚合物 (NIP) 和裸体电极进行比较.
主要成果:
- 在优化条件下,一个MIP涂层电极选择性地从DMPh电氧化中产生TMBh,在优化条件下具有39%的选择性.
- DFT和光谱研究指导了为MIP印记选择含有碳素的功能单体.
- 发现MIP薄膜厚度和电合成潜力显著影响产量和选择性.
- 计算机模拟证实,MIP腔促进了DMPh的直接合,形成TMBh.
结论:
- 用MIP涂层的电极为从DMPh中选择性电合成TMBh提供了一个有前途的平台.
- 开发的程序为TMBh生产提供了一种选择性和无添加剂的方法.
- 计算建模,光谱分析和电化学技术的结合对于MIP设计和优化是有效的.
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