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Linker substitution...
Linker substitution in ZIF-8 and its effect on the selective uptake of the greenhouse gases CH4, CO2 and SF6
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- Hedbom, Daniel, 1983- (författare)
- Uppsala universitet,Nanoteknologi och funktionella material
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- Åhlén, Michelle (författare)
- Uppsala universitet,Nanoteknologi och funktionella material
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- Cheung, Ocean (författare)
- Uppsala universitet,Nanoteknologi och funktionella material
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(creator_code:org_t)
- 2021
- 2021
- Engelska.
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Ingår i: 2nd International School on Porous Materials, 21-25 June 2021.
- Relaterad länk:
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https://mofs2021.lak...
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visa fler...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- Attempts were made to synthesize, pore size tailor, and characterize ZIF-8 and several mixed-linker ZIF structures to improve capture of the greenhouse gasses CH4, CO2, and SF6. Three experimental linkers, 2-methylbenzimidazole, 2-aminobenzimidazole, and 5-nitrobenzimidazole were chosen to gradually substitute 2-methylimidazole as the linker in ZIF-8. This substitution was intended to gradually reduce pore sizes and possibly add functionality to the apertures present in ZIF-8. ZIF-hybrids were synthesized and characterized using PXRD, FTIR, 1HNMR, SEM, sorption measurements, and subsequent IAST modeling to evaluate these changes. Hybrid ZIFs were mostly XRD-crystalline. Linker incorporation was found to be incomplete, but increasing with added linker. Sodalite topology was confirmed in ZIF-8 samples and confirmed as modified in hybrid ZIFs. The hybrid ZIFs did indeed show altered sorption results and gas selectivity.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Nanoteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Nano-technology (hsv//eng)
Nyckelord
- Metal organic framework*
- MOF
- ZIF-8
- Mixed Linker
- Greenhouse Gas
- GHG Capture
- Engineering Science with specialization in Nanotechnology and Functional Materials
- Teknisk fysik med inriktning mot nanoteknologi och funktionella material
Publikations- och innehållstyp
- vet (ämneskategori)
- kon (ämneskategori)