Self-Assembled 8-Ti-Containing Polyoxomolybdate for the Photocatalytic Hydrogen Evolution
An S-shaped 8-Ti-containing polyoxomolybdate (NH<sub>4</sub>)Cs<sub>2</sub>Na<sub>6</sub>H<sub>3</sub>[Ti<sub>8</sub>(GeMo<sub>9</sub>O<sub>34</sub>)<sub>2</sub>(GeMo<sub>5</sub>O<sub>23</sub>)<sub>2</sub>]·44H<sub>2</sub>O (<b>1</b>) has been prepared under the one-pot hydrothermal method and further characterized. According to single-crystal X-ray, compound <b>1</b> consists of two {GeMo<sub>9</sub>O<sub>34</sub>} and two {GeMo<sub>5</sub>O<sub>23</sub>} segments, which are linked with a {Ti<sub>8</sub>O<sub>34</sub>} cluster. Moreover, the {GeMo<sub>5</sub>O<sub>23</sub>} 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 <b>1</b> has the highest nuclearity of Ti centers. From the photocatalytic hydrogen evolution studies, compound <b>1</b> can be used as the heterogeneous catalyst with an H<sub>2</sub> evolution rate of 2392.6 μmol g<sup>-1</sup> h<sup>-1</sup> under minimally optimized conditions.
Authors
- Jingyang Niu (ORCID: https://orcid.org/0000-0001-6526-7767)
- Wenyu Wang (ORCID: https://orcid.org/0000-0002-8315-0359)
- Pengtao Ma (ORCID: https://orcid.org/0000-0002-0587-8635)
- Jingping Wang (ORCID: https://orcid.org/0000-0002-4443-6899)
- Sen Liu
Institutions
- Henan University (CN)
Publication Details
- Journal
- Inorganic Chemistry
- Published
- 2024-10-17
- DOI
- https://doi.org/10.1021/acs.inorgchem.4c03255
- Citations
- 4
- Primary Topic
- Polyoxometalates: Synthesis and Applications
- Type
- article
- Field-Weighted Citation Impact
- 0.47
Funders
- National Natural Science Foundation of China