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Identifier |
000429410 |
Title |
Ανάπτυξη καινοτόμων πορωδών πολυμερών συναρμογής (MOFs) βασισμένα σε πολυτοπικούς οργανικούς υποκαταστάτες |
Alternative Title |
Development of novel porous coordination polymers based on polytopic linkers |
Author
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Μπατζάβαλη, Δανάη Γ.
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Thesis advisor
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Τρικαλίτης, Παντελής
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Reviewer
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Μήλιος, Κωνσταντίνος
Φρουδάκης, Γεώργιος
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Abstract |
Metal Organic Frameworks (MOFs) is a class of porous materials. They
arecharacterized as crystalline materials which consist of metal nodesor clusters and
organic ligands that piece together through coordination bonds. The nature of the
inorganic metal cluster and the geometry of the organic ligand define the structure of
the MOF and make also possible control over it. Moreover, the organic ligand is
amenable to modifications with functional groups, altering in that wayMOFs’
properties. Control over size, shape and functionality of pores in MOFs but also their
excellent porosity make them excellent candidates for a variety of applications such
as storage and separation of gases (CO2, CH4, H2, Xe, Kr), catalysis, drug storage.
The purpose of this work is firstly, the synthesis and characterization of a MOF which
has an amide functional group. Specifically, modification of a tetratopic isophthalate
ligand with amide groups (H8L1) and its combination with Cu2+ aimed in synthesis of
a MOF with tbo topology. Activation of this MOF allowed the study of adsorption
properties in comparison with its non-functionalized analogue, Cu-tbo-MOF-5.
In addition, three new MOFs were synthesized and characterized that are based in
alkali earths ions and a tetrahedral ligand (H4MTBC). Ca-MTBC and Sr-MTBC are
isostructural but Ba-MTBC has different structure. Successful activation of Ca-MTBC
and Sr-MTBC led to porosity characterization and study of adsorption properties.
Moreover, in order to further explore the diversity of MOF structures that contain
alkali earth ions an amide tetratopic isophthalate ligand (H8L1) was combined with
Sr2+.
Finally, in order to explore the effect of functional groups in adsorption properties, the
previously used tetrahedral ligand (H4MTBC) was modified with sulfone groups and
combined with Ba2+. This specific functional group has also an effect in ligand’s
geometry and subsequently in MOFs structure.
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Language |
Greek |
Subject |
Alkali earths |
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Gas adsorption |
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Porous materials |
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Αλκαλικές γαίες |
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Πορώδη υλικά |
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Προσρόφηση αερίων |
Issue date |
2020-03-27 |
Collection
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School/Department--School of Sciences and Engineering--Department of Chemistry--Post-graduate theses
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Type of Work--Post-graduate theses
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Permanent Link |
https://elocus.lib.uoc.gr//dlib/a/4/2/metadata-dlib-1589274934-884936-21520.tkl
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Views |
619 |