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个人信息Personal Information
教授
博士生导师
硕士生导师
性别：男
毕业院校：吉林大学
学位：博士
所在单位：化工学院
学科：有机化学. 应用化学. 物理化学
办公地点：西部校区E座208房间
联系方式：0411－84986236
电子邮箱：zhaojzh@dlut.edu.cn
Iridium motif linked porphyrins for efficient light-driven hydrogen evolution via triplet state stabilization of porphyrin
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论文类型：期刊论文
发表时间：2020-02-14
发表刊物：JOURNAL OF MATERIALS CHEMISTRY A
收录刊物：EI、SCIE
卷号：8
期号：6
页面范围：3005-3010
ISSN号：2050-7488
摘要：Two new iridium motif linked porphyrins, MBPyZnP-Ir and TBPyZnP-Ir are developed for photocatalytic hydrogen evolution (PHE). The tetra-iridium linked one, TBPyZnP-Ir, displayed the highest H-2 production rate (eta H-2) of 16.12 mmol g(-1) h(-1) within 5 h of irradiation, which is over 2.73-fold higher than MBPyZnP-Ir (5.90 mmol g(-1) h(-1)) and much higher than their precursors TBPyZnP (0.12 mmol g(-1) h(-1)) and MBPyZnP (0.06 mmol g(-1) h(-1)) without iridium. The superior eta H-2 of TBPyZnP-Ir could be explained by the iridium motifs linked to the porphyrin, stabilizing the triplet states of the porphyrin through intramolecular energy transfer; thus enhancing electron transfer from the triplet photo-excited porphyrin moiety to the cobaloxime co-catalyst and consequently proton reduction.