Sulfone-functionalized stable molecular single crystals for photocatalytic hydrogen evolution  

作　　者：Xunliang Hu Xiaoju Yang Bingyi Song Zhen Zhan Ruixue Sun Yantong Guo Li-Ming Yang Xuan Yang Chun Zhang Irshad Hussain Xiaoyan Wang Bien Tan 

机构地区：[1]Key Laboratory of Material Chemistry for Energy Conversion and Storage Ministry of Education,Hubei Key Laboratory of Material Chemistry and Service Failure,School of Chemistry and Chemical Engineering,Huazhong University of Science and Technology,Wuhan,China [2]Department of Applied Physics,The Hong Kong Polytechnic University,Kowloon,Hong Kong,China [3]College of Life Science&Technology,Huazhong University of Science and Technology,Wuhan,China [4]Department of Chemistry and Chemical Engineering,SBA School of Science and Engineering,Lahore University of Management Sciences,Lahore,Pakistan

出　　处：《SusMat》2024年第3期240-250,共11页可持续发展材料（英文）

基　　金：supported by the National Natural Science Foundation of China(grant nos.21975086,22305087,and 52203259);the International S&T Cooperation Program of China(grant nos.2018YFE0117300 and 22161142005);the Natural Science Foundation of Hubei Province(grant no.2022CFB720);X.J.Y.and X.Y.acknowledge the support from the Huazhong University of Science and Technology(HUST)Academic Frontier Youth Team(grant no.2019QYTD11);L.M.Y.and B.Y.S.gratefully acknowledge the National Natural Science Foundation of China(21873032,22073033,21673087,and 21903032);the startup fund from HUST(2006013118 and 3004013105);the Fundamental Research Funds for the Central Universities(2019kfyRCPY116);the Innovation and Talent Recruitment Base of New Energy Chemistry and Device(B21003).

摘　　要：Highly crystalline organic semiconductors are ideal materials for photocatalytic hydrogen evolution in water splitting.However,the instability and complex synthesis processes of most reported organic molecule-based photocatalysts restrict their applications.In this study,we introduce benzo[1,2-b:4,5-bʹ]bis[1]benzothiophene-3,9-dicarboxylic acid,5,5,11,11-tetraoxide(FSOCA),a highly crystalline,stable molecular crystal that is easy to synthesize and serves as an efficient photocatalyst for the hydrogen evolution reaction.FSOCA exhibits high efficiency in sacrificial hydrogen evolution reaction(760μmol h^(−1),76 mmol g^(−1)h^(−1)at 330 mW cm^(−2);570μmol h^(−1),57 mmol g^(−1)h^(−1)at 250 mW cm^(−2)),and FSOCA remains stable during photocatalysis for up to 400 h.Experiments and theoretical studies confirmed the presence of hydrogen bonds between the sulfone group and the sacrificial agent(ascorbic acid).This interaction significantly improved the oxidation reaction kinetics and boosted the photocatalytic performance.This study presents a scalable and convenient approach to synthesize highly crystalline,active,and stable organic photocatalysts with potential applications in large-scale photocatalysis.

关 键 词：exceptional durability molecular single crystals photocatalytic water splitting 

分 类 号：O62[理学—有机化学]