Synthesis, Crystal Structures, and Photochemical Properties of a Family of Heterometallic Titanium Oxo Clusters
| Autor: | Chao Liu, Zhong-Ming Sun, Lei Jiao Li, Chao Wang |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Photocurrent
010405 organic chemistry chemistry.chemical_element Crystal structure 010402 general chemistry 01 natural sciences 0104 chemical sciences Inorganic Chemistry Metal Crystallography chemistry Transition metal visual_art visual_art.visual_art_medium Photocatalysis Density functional theory Physical and Theoretical Chemistry Spectroscopy Titanium |
| Zdroj: | Inorganic chemistry. 58(9) |
| ISSN: | 1520-510X |
| Popis: | The incorporation of heterometallic atoms into the structure of titanium-oxygen nanomaterials is one of the known and effective strategies to develop new high-performance photovoltaic active materials. In this study, we have synthesized three benzoic acid-stabilized heterometallic titanium oxo clusters with the different transition metals Co, Cu, and Cd, formulated as [Ti4Co2(μ2-O)2(μ3-O)2(C6H5COO)12(CH3CN)2]·2CH3CN (1), [Ti5Cu4(μ3-O)6(C6H5COO)16] (2), and [Ti12Cd5(μ2-O)(μ3-O)15(μ4-O)2(C6H5COO)22(C6H5COOH)(CH3CN)]·CH3CN·C6H5COOH (3), and then we characterized their structures. UV-vis spectroscopy analysis revealed an enhanced UV-vis-light absorption of those heterometallic clusters. The density functional theory calculations indicated that charge transfer occurs from the p orbital of O atoms to the d orbital of Ti atoms in the TiO core (O → Ti) as well as from the metal to the core in 1 and 2. We also measured the photocurrent response and photocatalytic H2 evolution, which shows enhancement in the photocurrent intensity and good H2 evolution ability because of the cooperative effect of heterometal doping in titanium oxo clusters. |
| Databáze: | OpenAIRE |
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