3D-architecture via self-assembly of Krebs-type polyoxometalate {Na10(H2O)26][Sb2W20Zn2O70(H2O)6]}

被引：11
|
作者：
Ni, Lubin [1 ]
Xu, Hongjie [1 ]
Li, Huan [1 ]
Zhao, Hongxia [1 ]
Diao, Guowang [1 ]
机构：
[1] Yangzhou Univ, Sch Chem & Chem Engn, Yangzhou 225002, Jiangsu, Peoples R China
来源：
POLYHEDRON | 2018年 / 155卷
基金：
中国国家自然科学基金;
关键词：
Krebs-type POM; 3D-architecture; Crystal structure; Na+ cations; Oxidation catalysis;
D O I：
10.1016/j.poly.2018.08.036
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
A novel Krebs-type polyoxometalate [Na-10(H2O)(26)][Sb2W20Zn2O70(H2O)(6)] (Zn2W2) (1) was fabricated from one-pot transformations of the trilacunary Keggin-type [B-alpha-SbW9O33](9-) precursor, followed by Zn2+/Na+-assisted self-assembly of the Krebs-type polyanion. The {Zn2W2} polyanion was further self-assembled into 3D architecture with new topology by adjusting Na+ cations. The compound {Zn2W2} (1) was fully characterized with a wide range of analytical methods, including single crystal/powder X-ray diffraction, thermogravimetric analysis (TGA) and various spectroscopic techniques (FT-IR, Raman, UV-vis). Electrochemical performance of {Zn2W2} polyanion was also investigated by cyclic voltammetry (CV) in sodium acetate buffer solution. Moreover, compound {Zn2W2} (1) is an effective catalyst for the oxidation of cyclohexanol with hydrogen peroxide. (C) 2018 Elsevier Ltd. All rights reserved.
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页码：59 / 65
页数：7
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