A Polyoxometalate-Encapsulating Cationic Metal-Organic Framework as a Heterogeneous Catalyst for Desulfurization
A Polyoxometalate-Encapsulating Cationic Metal-Organic Framework as a Heterogeneous Catalyst for Desulfurization
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多金属氧酸盐封装的阳离子金属有机骨架作为多相脱硫催化剂
DOI：
10.1002/chem.201405825
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发表时间：
2015-02-23
影响因子：
4.3
通讯作者：
Wang, En-Bo
中科院分区：
文献类型：
--
作者：
Hao, Xiu-Li;Ma, Yuan-Yuan;Wang, En-Bo
水热法合成了一种新型的阳离子三唑基金属有机骨架包覆Keggin型聚氧乙烯酸盐，分子式为[Co（BBPTZ）（3）][HPMo 12 O 40] 24 H（2）O [compound 1; BBPTZ= 4，4-bis（1，2，4-triazole-1-ylmethyl）biphenyl]，并通过元素分析、红外光谱、热重分析、粉末X-射线衍射和单晶X-射线衍射进行了表征。化合物1的结构包含非互穿的3D CdSO 4（cds）-型框架，其具有两种类型的彼此互连的通道;由Keggin型POM阴离子占据的直通道和包含晶格水分子的波状通道。化合物1在氧化脱硫反应中的催化活性表明，它不仅是一种有效的、具有尺寸选择性的多相催化剂，而且在催化反应体系中具有明显的结构稳定性。
A new cationic triazole-based metal-organic framework encapsulating Keggin-type polyoxometalates, with the molecular formula [Co(BBPTZ)(3)][HPMo12O40]24H(2)O [compound1; BBPTZ=4,4-bis(1,2,4-triazol-1-ylmethyl)biphenyl] is hydrothermally synthesized and characterized by elemental analysis, IR spectroscopy, thermogravimetric analysis, powder X-ray diffraction, and single-crystal X-ray diffraction. The structure of compound1 contains a non-interpenetrated 3D CdSO4 (cds)-type framework with two types of channels that are interconnected with each other; straight channels that are occupied by the Keggin-type POM anions, and wavelike channels that contain lattice water molecules. The catalytic activity of compound1 in the oxidative desulfurization reaction indicates that it is not only an effective and size-selective heterogeneous catalyst, but it also exhibits distinct structural stability in the catalytic reaction system.