Self-Assembled 8-Ti-Containing Polyoxomolybdate for the Photocatalytic Hydrogen Evolution

被引:0
作者
Wang, Wenyu [1 ]
Liu, Sen [1 ]
Ma, Pengtao [1 ]
Wang, Jingping [1 ]
Niu, Jingyang [1 ]
机构
[1] Henan Univ, Coll Chem & Mol Sci, Henan Key Lab Polyoxometalate Chem, Kaifeng 475004, Henan, Peoples R China
基金
中国国家自然科学基金;
关键词
NOBLE-METAL-FREE; POLYOXOMETALATE CATALYST; MOLECULAR-STRUCTURE; WATER; POLYOXOTUNGSTATES; STABILITY; MAGNETISM; CLUSTERS; CENTERS; VALENCE;
D O I
10.1021/acs.inorgchem.4c03255
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
An S-shaped 8-Ti-containing polyoxomolybdate (NH4)Cs2Na6H3[Ti-8(GeMo9O34)(2)(GeMo5O23)(2)]<middle dot>44H(2)O (1) has been prepared under the one-pot hydrothermal method and further characterized. According to single-crystal X-ray, compound 1 consists of two {GeMo9O34} and two {GeMo5O23} segments, which are linked with a {Ti8O34} cluster. Moreover, the {GeMo5O23} fragment is rare and the first discovery, which enriches the lacunary Keggin-type family and offers the possibility of obtaining new structures. Among all of the reported polyoxomolybdates, compound 1 has the highest nuclearity of Ti centers. From the photocatalytic hydrogen evolution studies, compound 1 can be used as the heterogeneous catalyst with an H-2 evolution rate of 2392.6 mu mol g(-1) h(-1) under minimally optimized conditions.
引用
收藏
页码:20625 / 20632
页数:8
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