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在金属有机框架中排列的D-A组件的排列,以实现无催化剂的光催化进化,并具有高效的质子导电

Ning Liu¹, Jialong Jiang¹, Shiqi Zhang¹

¹Frontiers Science Center for New Organic Matter, State Key Laboratory of Advanced Chemical Power Sources and Key Laboratory of Advanced Energy Materials Chemistry (MOE), College of Chemistry, Nankai University, Tianjin, 300071, China.

Angewandte Chemie (International ed. in English)

|February 28, 2025

概括

研究人员开发了新的金属有机框架 (MOFs),其中有订购的捐赠者-接受器组件. 这些MOF表现出高的光催化演化活性,没有催化剂,展示了高效的电子孔分离.

科学领域:

材料科学材料科学材料科学
光催化作用的光催化
协调化学协调化学

背景情况:

在光催化剂中,有序的捐赠者-接受者 (D-A) 安排对于高效的电子孔分离至关重要.
金属有机框架 (MOF) 为先进的材料设计提供可调节的结构.

研究的目的:

合成和描述具有分层能量水平的同结构D-A金属有机框架 (MOFs).
评估这些MOF的光催化演化活性,而无需共催化剂或光敏感剂.

主要方法:

D-A分子的协调组合成两个同结构MOF (1和2).
光催化进化速度测量.
机制研究涉及能量键,金属中心和质子亲和力.
对质子运输动力学和结网络的分析.

主要成果:

MOFs 1 和 2 呈现出显著的光催化演化活性.
调节活性金属位点增加了的演化率,从1260到3218μmol h−1 g−1.1.
由于其结网络,MOF 2显示了增强的质子亲和力和导电性,改善了反应动力学.

结论:

在D-A组件和金属中心内的能量键有效地产生光生成的电荷载体.
MOF 2 的优越的质子亲和力和运输动力学导致了增强的光催化进化.
这些DAMOF为生产提供了有前途的,无共催化剂的材料.

关键词:

金属有机框架的框架.订购了DA组件的组件光催化进化过程中的光催化质子导电传导的过程

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