A Crystalline Copper(II) Coordination Polymer for the Efficient Visible-Light-Driven Generation of Hydrogen
Publication in refereed journal

香港中文大學研究人員

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摘要A crystalline coordination polymer (CP) photocatalyst (Cu-RSH) which combines redox-active copper centers with photoactive rhodamine-derived ligands remains stable in acid and basic solutions from pH2 to 14, and efficiently catalyzes dihydrogen evolution at a maximum rate of 7.88mmolg(-1)h(-1) in the absence of a mediator and a co-catalyst. Cyclic voltammetry, control experiments, and DFT calculations established that copper nodes with open coordination sites and favorable redox potentials, aided by spatially ordered stacking of rhodamine-based linkers, account for the high catalytic performance of Cu-RSH. Emission quenching, time-resolved fluorescence decay, and transient photocurrent experiments disclosed the charge separation and transfer process in the catalytic system. The present study demonstrates the potential of crystalline copper CPs for the practical utilization of light.
著者Dong XY, Zhang M, Pei RB, Wang Q, Wei DH, Zang SQ, Fan YT, Mak TCW
期刊名稱Angewandte Chemie International Edition
出版年份2016
月份2
日期5
卷號55
期次6
出版社WILEY-V C H VERLAG GMBH
頁次2073 - 2077
國際標準期刊號1433-7851
電子國際標準期刊號1521-3773
語言英式英語
關鍵詞coordination polymer; copper; dyes; hydrogen; photochemistry; pigments
Web of Science 學科類別Chemistry; Chemistry, Multidisciplinary

上次更新時間 2020-28-11 於 01:41