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Photoswitchable Zirconium MOF for Light-Driven Hydrogen Storage
| Content Provider | MDPI |
|---|---|
| Author | Oleg, I. Il’In Vladimir, A. Bren’ Butova, Vera V. Burachevskaya, Olga A. Podshibyakin, Vitaly A. Shepelenko, Evgenii N. Tereshchenko, Andrei A. Shapovalova, Svetlana O. Soldatov, Alexander V. |
| Copyright Year | 2021 |
| Description | Here, we report a new photosensitive metal–organic framework (MOF) that was constructed via the modification of $UiO-66-NH_{2}$ with diarylethene molecules (DAE, 4-(5-Methoxy-1,2-dimethyl-1H-indol-3-yl)-3-(2,5-dimethylthiophen-3-yl)-4-furan-2,5-dione). The material that was obtained was a highly crystalline porous compound. The photoresponse of the modified MOF was observed via UV–Vis and IR spectroscopy. Most of the DAE molecules inside of the UiO-66-pores had an open conformation after synthesis. However, the equilibrium was able to be shifted further toward an open conformation using visible light irradiation with a wavelength of 520 nm. Conversely, UV-light with a wavelength of 450 nm initiated the transformation of the photoresponsive moieties inside of the pores to a closed modification. We have shown that this transformation could be used to stimulate hydrogen adsorption–desorption processes. Specifically, visible light irradiation increased the $H_{2}$ capacity of modified MOF, while UV-light decreased it. A similar hybrid material with DAE moieties in the UiO-66 scaffold was applied for hydrogen storage for the first time. Additionally, the obtained results are promising for smart $H_{2}$ storage that is able to be managed via light stimuli. |
| Starting Page | 4052 |
| e-ISSN | 20734360 |
| DOI | 10.3390/polym13224052 |
| Journal | Polymers |
| Issue Number | 22 |
| Volume Number | 13 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2021-11-22 |
| Access Restriction | Open |
| Subject Keyword | Polymers Uio-66 Smart Material Diarylethene Uio-66-nh2 Photochromism Activation Ftir in Situ Ir-spectroscopy |
| Content Type | Text |
| Resource Type | Article |
