Selective photosynthesis of Z-olefins through crystalline metal-organic cage-initiated expeditious cascade reactions

作     者：Jia-Ni Lu Yunze Huang Yuan-Sheng Xia Long-Zhang Dong Lei Zhang Jing-Jing Liu Lan-Gui Xie Jiang Liu Ya-Qian Lan 

作者机构：Jiangsu Key Laboratory of New Power BatteriesSchool of Chemistry and Materials ScienceJiangsu Collaborative Innovation Centre of Biomedical Functional MaterialsNanjing Normal UniversityNanjingChina School of ChemistrySouth China Normal UniversityGuangzhouChina 

出 版 物：《Carbon Energy》 (碳能源（英文）)

年 卷 期：2024年第6卷第3期

页      面：118-131页

核心收录：

学科分类：081702[工学-化学工艺] 081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 

基　　金：supported by NSFC(Grant Nos.92061101,22271104,21871141,22225109,and 21901123) the Excellent Youth Foundation of Jiangsu Scientific Committee(BK20211593) the project funded by the China Postdoctoral Science Foundation(2018M630572) the Priority Academic Program Development of Jiangsu Higher Education Institutions,and the Foundation of Jiangsu Collaborative Innovation Center of Biomedical Functional Materials,the National Key Research and Development Project of China(Grant No.2021YFC2100100) the Natural Science Foundation of Jiangsu Province(Grant No.BK20190694) 

主　　题：alkyne semi-hydrogenation hydrogen evolution reaction metal-organic cages photocatalysis Z-olefins 

摘      要：The semi-hydrogenation of alkyne to form Z-olefins with high conversion and high selectivity is still a huge challenge in the chemical ***,flammable and explosive hydrogen as the common hydrogen source of this reaction increases the cost and danger of industrial ***,we connect the photocatalytic hydrogen evolution reaction and the semihydrogenation reaction of alkynes in series and successfully realize the high selective production of Z-alkenes using low-cost,safe,and green water as the proton *** the cascade reaction,a series of isomorphic metal–organic cage catalysts(Co_(x)Zn_(8−x)L_(6),x=0,3,4,5,and 8)are designed and synthesized to improve the yield of the photocatalytic hydrogen *** them,Co_(5)Zn_(3)L_(6) shows the highest photocatalytic activity,with a H_(2) generation rate of 8.81 mmol g^(−1) h^(−1).Then,Co_(5)Zn_(3)L_(6) is further applied in the above tandem reaction to efficiently reduce alkynes to Z-alkenes under ambient conditions,which can reach high conversion of98%and high selectivity of99%,and maintain original catalytic activity after multiple ***“one-pottandem reaction can achieve a highly selective and safe stepwise conversion from water into hydrogen into Z-olefins under mild reaction conditions.