含氰基取代噻吩桥联单元的可调给体-受体线性共轭聚合物用于可见光驱动制氢。

Tunable Donor-Acceptor Linear Conjugated Polymers Involving Cyanostyrylthiophene Linkages for Visible-Light-Driven Hydrogen Production.

机构信息

Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, College of Materials, Metallurgical and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, China.

School of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou 341000, China.

出版信息

Molecules. 2023 Feb 27;28(5):2203. doi: 10.3390/molecules28052203.

In this paper, an atom- and step-economic direct C-H arylation polymerization (DArP) strategy was developed to access cyanostyrylthiophene (CST)-based donor-acceptor (D-A) conjugated polymers (CPs) used for photocatalytic hydrogen production (PHP) from water reduction. The new CST-based CPs - with varied building blocks were systematically studied by X-ray single-crystal analysis, FTIR, scanning electron microscopy, UV-vis, photoluminescence, transient photocurrent response, cyclic voltammetry measurements, and a PHP test, which showed that the phenyl-cyanostyrylthiophene-based exhibits a superior hydrogen evolution rate (7.60 mmol h g) compared to other conjugated polymers. The structure-property-performance correlation results obtained in this study will provide an important guideline for the rational design of high-performance D-A CPs for PHP applications.

本文开发了一种原子经济性和步骤经济性的直接 C-H 芳基化聚合（DArP）策略，用于构建基于氰基取代噻吩（CST）的给体-受体（D-A）共轭聚合物（CPs），用于从水还原中进行光催化制氢（PHP）。通过 X 射线单晶分析、FTIR、扫描电子显微镜、UV-vis、光致发光、瞬态光电流响应、循环伏安法测量和 PHP 测试，系统地研究了具有不同结构单元的新型 CST 基 CPs，结果表明基于苯基-氰基取代噻吩的聚合物表现出较高的制氢速率（7.60 mmol h g），优于其他共轭聚合物。本研究中获得的结构-性能-相关性结果将为用于 PHP 应用的高性能 D-A CP 的合理设计提供重要指导。