Mechanochemical strategies for synthesis and modification of functional metal-organic frameworks

doctoral thesis

• Title (croatian): Mehanokemijske strategije za sintezu i modifikaciju funkcionalnih metalo-organskih mreža
• Author: Valentina Martinez
• Mentor: Krunoslav Užarević (mentor)
• Mentor: Igor Dejanović (mentor)
• Committee member: Ernest Meštrović (predsjednik povjerenstva)
• Committee member: Petar Kassal (član povjerenstva)
• Committee member: Mirta Rubčić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Chemical Engineering and Technology; Zagreb
• Defense date and country: 2024-07-12, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Chemistry; Inorganic Chemistry
• Universal decimal classification (UDC): 54 - Chemistry. Crystallography. Mineralogy

Abstract

Metal-organic frameworks (MOF) are among the most researched porous materials due to the tunability of their physico-chemical properties through structural changes and broad application potential. Mechanochemical MOF synthesis is a sustainable and often superior alternative to solution MOF synthesis. Therefore, this work aimed to advance mechanochemical strategies for the synthesis and modification of MOFs and their unconventional derivatives by using two well-investigated MOF classes, ZIF-8 and MOF-74.
It involved the development of the controllable mechanochemical synthetic strategy for the encapsulation of functional guests into MOFs, using the encapsulation of Buckminsterfullerene into ZIF-8 as a model system. Moreover, it explored the preparation of both crystalline and amorphous phases of multivariate MOFs, bimetallic zinc-copper MOF-74 materials through diverse synthetic pathways, including mechanochemical amorphisation. The results have demonstrated that the selection of an appropriate synthetic strategy significantly affects the physical and chemical characteristics and the possible applications of explored MOFs.

Abstract (croatian)

Metalo-organske mreže (MOF) među najistraživanim su poroznim materijalima zbog prilagodljivosti njihovih fizikalno-kemijskih svojstava kroz modifikacije u strukturi i širokog potencijala primjene. Mehanokemijska sinteza MOF-ova održiva je i često nadmoćnija alternativa otopinskoj sintezi MOF-ova. Stoga je cilj ovog rada bio unaprijediti mehanokemijske strategije sinteze i modifikacije MOF-ova kao i njihovih nekonvencionalnih derivata, korištenjem dvije dobro istražene grupe MOF-ova, ZIF-8 i MOF-74. To je uključivalo razvoj kontrolirane mehanokemijske sintetske strategije za enkapsulaciju funkcionalnih gostiju u MOF-ove, koristeći enkapsulaciju Buckminsterfullerena u ZIF-8 kao modelni sustav. Nadalje, istraživana je priprema kristalnih i amorfnih faza multivarijantnih MOF-ova, bimetalnih cink-bakarnih MOF-74 materijala različitim sintetskim putevima, uključujući mehanokemijsku amorfizaciju. Rezultati su pokazali da odabir odgovarajuće sintetske strategije značajno utječe na fizikalna i kemijska svojstva te na moguću primjenu istraženih MOF-ova.

• Keywords: amorphisation; encapsulation; functional materials; mechanochemistry; multivariate MOF
• Keywords (croatian): amorfizacija; enkapsulacija; funkcionalni materijali; mehanokemija; multivarijantni MOF
• Language: english
• URN:NBN: urn:nbn:hr:149:573978
• Promotion: 2024
• Project: Number: PZS-2019-02-4129; Title: Mehanokemijske i bezotopinske strategije za sintezu funkcionalnih poroznih materijala s naprednim fizičko-kemijskim i katalitičkim svojstvima; Title: Mechanochemical and solvent-free strategies towards functional porous materials with advanced physico-chemical and catalytic properties; Acronym: MECHADVANCE; Leader: Krunoslav Užarević; Jurisdiction: Croatia; Funder: Hrvatska zaklada za znanost; Funding stream: Programme Research Cooperability
• Study programme: Title: Chemical Engineering and Applied Chemistry - Doctoral course; Study programme type: university; Study level: postgraduate; Academic / professional title: doktor/doktorica znanosti u području prirodnih znanosti (doktor/doktorica znanosti u području prirodnih znanosti)
• Type of resource: Text
• Extent: 141 str. ; 30 cm
• File origin: Born digital
• Access conditions: Embargoed access; Embargo expiration date: 2024-09-01
• Public note: Skandinavski model
• Created on: 2024-07-22 10:10:00