文献类型：期刊文献

英文题名：Orange Zinc Germanate with Metallic Ge-Ge Bonds as a Chromophore-Like Center for Visible-Light-Driven Water Splitting

作者：Qian, Ling[1];Chen, Jian Fu[2,3];Li, Yu Hang[1];Wu, Long[1];Wang, Hai Feng[2,3];Chen, Ai Ping[1];Hu, P.[2,3,4];Zheng, Li Rong[5];Yang, Hua Gui[1]

机构：[1]E China Univ Sci & Technol, Sch Mat Sci & Engn, Minist Educ, Key Lab Ultrafine Mat, Shanghai 200237, Peoples R China;[2]E China Univ Sci & Technol, Ctr Computat Chem, Key Lab Adv Mat, Shanghai 200237, Peoples R China;[3]E China Univ Sci & Technol, Res Inst Ind Catalysis, Shanghai 200237, Peoples R China;[4]Queens Univ Belfast, Sch Chem & Chem Engn, Belfast BT9 5AG, Antrim, North Ireland;[5]Chinese Acad Sci, Inst High Energy Phys, Beijing Synchrotron Radiat Facil, Beijing 100049, Peoples R China

年份：2015

卷号：54

期号：39

起止页码：11467

外文期刊名：ANGEWANDTE CHEMIE-INTERNATIONAL EDITION

收录：;EI(收录号：20153401200163);WOS:【SCI-EXPANDED(收录号:WOS:000363392100019)】；

基金：This work was financially supported by National Natural Science Foundation of China (21373083), Program of Shanghai Subject Chief Scientist (15XD1501300) and Science and Technology Commission of Shanghai Municipality (14JC1490900).

语种：英文

外文关键词：chromophore-like structures; Ge-Ge bonds; hydrogen evolution; semiconductors; visible-light responsive

摘要：The efficiency of solar-energy-conversion devices depends on the absorption region and intensity of the photon collectors. Organic chromophores, which have been widely stabilized on inorganic semiconductors for light trapping, are limited by the interface between the chromophore and semiconductor. Herein we report a novel orange zinc germanate (Zn-Ge-O) with a chromophore-like structure, by which the absorption region can be dramatically expanded. Structural characterizations and theoretical calculations together reveal that the origin of visible-light response can be attributed to the unusual metallic Ge-Ge bonds which act in a similar way to organic chromophores. Benefiting from the enhanced light harvest, the orange Zn-Ge-O demonstrates superior capacity for solar-driven hydrogen production.