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Updated: Jun 13, 2025

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基于硫的导电MOF:利用硫化学进行增强的质子传输

Chenwei Lu¹, Ji Yong Choi¹, Brianna Check¹

¹Department of Chemistry, University of Colorado Boulder, Boulder, Colorado 80309, United States.

Journal of the American Chemical Society

|September 16, 2024

概括

研究人员开发了一种新的电导金属有机框架 (EC-MOF),使用含硫的连接器. 这种材料可以进行合成后的改造,显著提高质子导电性,并展示了功能导电框架的新策略.

科学领域:

材料科学
化学学
纳米技术

背景情况:

电导金属有机框架 (EC-MOF) 的功能化是调整电子性能和引入新功能的关键.
由于d-p结合的要求,设计用于合成后修饰的EC-MOF连接器很困难.

研究的目的:

克服EC-MOF功能化的设计局限性.
通过含硫的结合剂合成一种新型的EC-MOF,用于合成后的修饰.
探索功能化对EC-MOF导电性的影响.

主要方法:

一种新的EC-MOF,Cu-thiatruxene (Cu-thiaTRX) 的合成,其特点是基于truxene的链接剂与异环硫.
通过氧化和S_NAr反应的两步过程对Cu-thiaTRX进行合成后的修饰.
原始和改性MOF的电子和质子导电性的表征.

主要成果:

由于有效的d-p合,合成的Cu-thiaTRX表现出显著的电导率 (2.2 × 10−2 S cm−1).
合成后的修改引入了硫基,使得可以调节的质子导电性.
在功能化后,质子导电率提高了200倍.

结论:

合理的连接器设计对于允许EC-MOF的合成后修改至关重要.
在Cu-thiaTRX中硫化学提供了一个多功能平台来调整框架属性.
这项工作表明了增强导电MOF功能的可行策略.

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