A novel dicobalt-substituted tungstoantimonate polyoxometalate: Synthesis,characterization,and photocatalytic water oxidation properties

作     者：Qing Han Di Sun Junwei Zhao Xiangming Liang Yong Ding 韩庆;孙頔;赵俊伟;梁向明;丁勇

作者机构：State Key Laboratory of Applied Organic ChemistryKey Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Provinceand College of Chemistry and Chemical EngineeringLanzhou UniversityLanzhou 730000GansuChina State Key Laboratory for Oxo Synthesis and Selective OxidationLanzhou Institute of Chemical PhysicsChinese Academy of SciencesLanzhou 730000GansuChina Key Laboratory of Colloid and Interface ChemistryMinistry of EducationSchool of Chemistry and Chemical EngineeringShandong UniversityJinan 250100ShandongChina Henan Key Laboratory of Polyoxometalate ChemistryInstitute of Molecule and Crystal EngineeringCollege of Chemistry and Chemical EngineeringHenan UniversityKaifeng 475004HenanChina 

基　　金：financially supported by the National Natural Science Foundation of China(21773096) the Fundamental Research Funds for the Central Universities(lzujbky-2018-k08) the Natural Science Foundation of Gansu Province(17JR5RA186)~~ 

出 版 物：《Chinese Journal of Catalysis》 (催化学报（英文）)

年 卷 期：2019年第40卷第6期

页      码：953-958页

摘      要：The one-pot assembly reaction of a trilacunary,lone-pair-containing[B-α-SbW9O33]*** with Co2+ions in an aqueous medium led to the isolation of a novel{SbO3(H2O)3}bridging,dicobalt-substituted,sandwich-type tungstoantimonate{Co2Sb2(H2O)10[B-β-SbW9O33]2}^4–(1a).This compound was structurally characterized in the solid state by single-crystal X-ray diffraction,elemental analyses,thermogravimetric analysis,and IR *** most remarkable feature was that 1a comprises two trilacunary[B-β-SbW9O33]9^-fragments trapping a novel,centrally symmetric,rhomb-like{Co2Sb2}belt with 10 terminal water *** combined with the photosensitizer[Ru(bpy)3]^2+and the sacrificial electron acceptor S2O82.,1a exhibited efficient catalytic activity for water oxidation with a remarkable turnover number(TON)of 193,initial turnover frequency(TOFinitial)of 5.3 s^-1,O2 yield of 30.8%,and quantum yield(ФQY)of 36.2%under light-driven conditions.

主 题 词：Light-driven water oxidation Tungstoantimonate Self-assembly 

学科分类：081702[081702] 081704[081704] 081705[081705] 07[理学] 0817[工学-轻工类] 08[工学] 070304[070304] 0703[理学-化学类] 

核心收录：

D　O　I：10.1016/S1872-2067(19)63358-9

馆 藏 号：203664284...