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Krylov AS, Shipilovskikh SA, Krylova SN, Slyusarenko NV, Timofeeva M, Kenzhebayeva YA, Bachinin SV, Yushina ID, Cherepakhin AV, Shestakov NP, Nemtsev IV, Vtyurin AN, Milichko VA. Application of DUT-4 MOF structure switching for optical and electrical humidity sensing. Dalton Trans 2024; 53:3459-3464. [PMID: 38317527 DOI: 10.1039/d4dt00038b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2024]
Abstract
The threshold structural transformation of the DUT-4 metal-organic framework (MOF) from an ordered to distorted phase during exposure to ambient conditions has been revealed. The in situ X-ray diffraction analysis, in situ Raman and FTIR spectroscopy, scanning electron microscopy and synchronous thermal analysis have been used for investigation. The reversible effect of exposure time and humidity on such a phase transition has been confirmed. We also demonstrated that the observed phase transition correlated well with changes in the optical and electronic properties of DUT-4, paving the way to a new family of MOF-based phase change materials for optoelectronic applications.
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Affiliation(s)
- Alexander S Krylov
- Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russia.
| | | | - Svetlana N Krylova
- Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russia.
| | | | | | | | | | | | - Aleksandr V Cherepakhin
- Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russia.
- Siberian Federal University, Krasnoyarsk, 660079, Russia
| | - Nikolai P Shestakov
- Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russia.
| | - Ivan V Nemtsev
- Federal Research Center "Krasnoyarsk Science Center of the Siberian Branch of the Russian Academy of Sciences", Akademgorodok 50, 660036 Krasnoyarsk, Russia
- Siberian Federal University, Krasnoyarsk, 660079, Russia
| | - Alexander N Vtyurin
- Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russia.
- Siberian Federal University, Krasnoyarsk, 660079, Russia
| | - Valentin A Milichko
- ITMO University, St. Petersburg, 197101, Russia
- Institut Jean Lamour, Universite de Lorraine, UMR CNRS 7198, 54011 Nancy, France
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Kichatov B, Korshunov A, Sudakov V, Golubkov A, Smovzh D, Sakhapov S, Skirda M. The role of self-diffusiophoresis and reactive force during the propulsion of manganese-based catalytic micromotors. Phys Chem Chem Phys 2024; 26:1612-1615. [PMID: 38165667 DOI: 10.1039/d3cp04689c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2024]
Abstract
The movement of catalytic micromotors is often accompanied by gas generation. Currently, the prevailing view is that bubbles play a significant role in their movement. Analyzing the movements of catalytic manganese-based micromotors in a solution of hydrogen peroxide, we found that the reactive force cannot play a significant role in their movement, and the main mechanism occurs due to self-diffusiophoresis.
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Affiliation(s)
- Boris Kichatov
- Lebedev Physical Institute, Russian Academy of Sciences, Moscow 119991, Russia.
| | - Alexey Korshunov
- Lebedev Physical Institute, Russian Academy of Sciences, Moscow 119991, Russia.
| | - Vladimir Sudakov
- Lebedev Physical Institute, Russian Academy of Sciences, Moscow 119991, Russia.
| | - Alexandr Golubkov
- Lebedev Physical Institute, Russian Academy of Sciences, Moscow 119991, Russia.
| | - Dmitriy Smovzh
- Kutateladze Institute of Thermophysics, Russian Academy of Sciences, Novosibirsk 630090, Russia.
- Novosibirsk State University, Novosibirsk, 630090, Russia
| | - Salavat Sakhapov
- Kutateladze Institute of Thermophysics, Russian Academy of Sciences, Novosibirsk 630090, Russia.
| | - Mikhail Skirda
- Kutateladze Institute of Thermophysics, Russian Academy of Sciences, Novosibirsk 630090, Russia.
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