Issue 58, 2017, Issue in Progress
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RSC Advances

Synthesis, structure, and photocatalytic hydrogen evolution of a trimeric Nb/W addendum cluster†

Haiying Wang,a   Lili Hou,b   Chen Li,a   Dongdi Zhang, ORCID logo *a   Pengtao Ma,a   Jingping Wang ORCID logo a  and  Jingyang Niu ORCID logo *a  

* Corresponding authors

a Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, China
E-mail: ddzhang@henu.edu.cn, jyniu@henu.edu.cn
Fax: +86-371-23886876

b Engineering Research Center for Nanomaterials, Henan University, Kaifeng, China

Abstract

We present the second example of mixed Nb/W addendum based trimer, Cs12[(SiW9Nb3O38)3WO3(OH)3]·33H2O by utilizing in situ formed Keggin-type {SiW9(NbO2)3} unit as the secondary building block. The polyanion [(SiW9Nb3O38)3WO3(OH)3]12− incorporates three saturated niobium-substituted tungstosilicate {SiW9Nb3} clusters that are linked together by three Nb–O–Nb bridges and a tungsten joint. The compound has been thoroughly characterized by single crystal X-ray diffraction, UV-Vis spectroscopy, TG analysis, PXRD and FTIR spectra. In addition, the photocatalytic activities of the title compound and the two precursors A-α-Na10[SiW9O34]·23H2O and K7HNb6O19·13H2O for H2 evolution were also evaluated.

Graphical abstract: Synthesis, structure, and photocatalytic hydrogen evolution of a trimeric Nb/W addendum cluster

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Article information

DOI
https://doi.org/10.1039/C7RA06291E
Article type
Paper
Submitted
05 Jun 2017
Accepted
10 Jul 2017
First published
21 Jul 2017
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2017,7, 36416-36420

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Synthesis, structure, and photocatalytic hydrogen evolution of a trimeric Nb/W addendum cluster

H. Wang, L. Hou, C. Li, D. Zhang, P. Ma, J. Wang and J. Niu, RSC Adv., 2017, 7, 36416 DOI: 10.1039/C7RA06291E

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