题目： | Molecular Regioisomerism of Benzobisthiazole-Based Conjugated Polymers Promotes Photocatalytic Hydrogen Production |
作者： | Yongpan Hu1,2, Xue Ding1,2, Jie Feng1,2, Yuchen Yan1,2, Chaochen Shao1,2, Xiaohan Yu1,2, Jingfan Shao1,2, Yujin Ji1,2, Youyong Li1,2,3, Wei Huang1,2*, and Yanguang Li1,2,3* |
单位： | 1Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou 215123, China. 2Jiangsu Key Laboratory for Advanced Negative Carbon Technologies, Soochow University, Suzhou 215123, China. 3Macao Institute of Materials Science and Engineering (MIMSE), MUST-SUDA Joint Research Center for Advanced Functional Materials, Macau University of Science and Technology, Macao 999078, China. |
摘要： | Polymer semiconductors hold great promise for photocatalytic hydrogen production due to their diverse structures and functions. Nevertheless, their photocatalytic performances are usually compromised by rapid charge recombination. Herein, a molecular regioisomerism strategy of benzobisthiazole (BT)-based conjugated polymers is proposed for manipulating their optoelectronic properties through varying the conjugation directions of BT units. Despite subtle structural differences, the 4,8-subsituted sample LCP-BT-48 exhibits an remarkably improved charge separation capability and a sixfold increase in the photocatalytic hydrogen production rate in comparison with those of the 2,6-subsituted counterpart. Theoretical analysis demonstrates that the superior optoelectronic property of LCP-BT-48 is attributed to its sp2 carbon-conjugated skeletons and enhanced local polarization electric field between BT and neighboring ?-units. This work provides a new paradigm for regulating charge-transfer dynamics in conjugated polymers for efficient photocatalysis. |
影响因子： | 18.5 |
分区情况： | 一区 |
链接： | https://doi.org/10.1002/adfm.202400946 责任编辑：杜欣 |