prikaz prve stranice dokumenta Structural characterisation of MXene obtained by various synthesis methods
Embargo period 2025-07-01
master's thesis
Structural characterisation of MXene obtained by various synthesis methods
Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology, 2024. urn:nbn:hr:149:191793
Stajku, Kaltrina
University of Zagreb
Faculty of Chemical Engineering and Technology

Institutional repository: Repository of Faculty of Chemical Engineering and Technology University of Zagreb

Cite this document

Stajku, K. (2024). Structural characterisation of MXene obtained by various synthesis methods (Master's thesis). Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:149:191793

Stajku, Kaltrina. "Structural characterisation of MXene obtained by various synthesis methods." Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2024. https://urn.nsk.hr/urn:nbn:hr:149:191793

Stajku, Kaltrina. "Structural characterisation of MXene obtained by various synthesis methods." Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2024. https://urn.nsk.hr/urn:nbn:hr:149:191793

Stajku, K. (2024). 'Structural characterisation of MXene obtained by various synthesis methods', Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, accessed 26 November 2024, https://urn.nsk.hr/urn:nbn:hr:149:191793

Stajku K. Structural characterisation of MXene obtained by various synthesis methods [Master's thesis]. Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology; 2024 [cited 2024 November 26] Available at: https://urn.nsk.hr/urn:nbn:hr:149:191793

K. Stajku, "Structural characterisation of MXene obtained by various synthesis methods", Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, Zagreb, 2024. Available at: https://urn.nsk.hr/urn:nbn:hr:149:191793

Metadata
TitleStructural characterisation of MXene obtained by various synthesis methods
Title (croatian)Strukturna karakterizacija MXene-a dobivenih različitim metodama sinteze
AuthorKaltrina Stajku
MentorMarijana Kraljić Roković (mentor)
MentorValtiner Markus (komentor)
Committee memberMarijana Kraljić Roković (predsjednik povjerenstva)
Committee memberJozefina Katić (član povjerenstva)
Committee memberIva Movre Šapić (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Chemical Engineering and Technology
Zagreb
Defense date and country2024-07-02, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Chemical Engineering
Abstract
The thesis aims to characterize new member of the 2D nanomaterials, MXene. The scientific question that’s been addressed throughout this study is addressing the challenges of HF synthesis of MXene such as environmental and safety concerns because of the hazardous nature of fluoride and emphasizing the importance of new synthesis techniques for fluorine-free MXene production. Specifically, the study investigates whether mechanochemical synthesis is a successful alternative. The results demonstrate successful partial etching of MXene on the surface of Ti3AlC2 by mechanochemical method. Surface characterization using Raman spectroscopy confirms the presence of new rovibronic states in the newly formed structure with the appearance of characteristic MXene Raman shift at 120 cm^-1. Scanning electron microscopy (SEM) distinguishes the morphology of MXenes from that of the MAX phase. Energy dispersive X-ray spectroscopy (EDX) affirms the etching of Al, corroborated with the newest Low energy ion scattering spectroscopy (LEIS) technique confirming the changes in aluminium content on the surface. Atomic force microscopy (AFM) implies the formation of a monolayer MXene structure. In conclusion, the study successfully achieved partial delamination of MXene, validating the efficiency of the mechanochemical approach in producing fluorine-free MXenes, applicable in various fields.
Abstract (croatian)
Cilj ovog rada je karakterizacija novih 2D nanomaterijala, odnosno MXene-a, što uključuje znanstvene i opće aspekte vezane uz ove materijale. Znanstvena problematika koja se obrađuje u ovom istraživanju odnosi se na izazove sinteze MXene-a s HF-a, kao što su ekološki i sigurnosni problemi zbog prirode fluorida. Također, naglašena je važnost novih tehnika sinteze MXene-a koje ne uključuju fluor te se istražuje je li mehanokemijska sinteza uspješna alternativa postojećim metodama sinteze. Rezultati pokazuju uspješno djelomično raslojavanje MAX faze Ti3AlC2. Površinska karakterizacija pomoću Raman spektroskopije potvrđuje prisutnost novih rovibroničkih stanja u novonastaloj strukturi s pojavom karakterističnog MXene Ramanovog pomaka na 120 cm^-1. Skenirajuća elektronska mikroskopija (SEM) razlikuje morfologiju MXene-a od one MAX faze. Energijski disperzivna rendgenska spektroskopija (EDX) potvrđuje uklanjanje aluminija, što je dodatno potvrđeno tehnikom raspršenja niskoenergetskih iona (LEIS) koja potvrđuje promjene u sadržaju aluminija na površini MAX faze. Mikroskopija atomskih sila (AFM) implicira formiranje jednoslojne MXene strukture. Na temelju dobivenih rezultata može se zaključiti da je uspješno provedena djelomična delaminacija MXene-a na površini MAX faze. Na taj način je potvrđena dobra učinkovitost mehanokemijskog pristupa koji ne uključuje upotrebu fluorida u proizvodnji MXene-a.
Keywords
Keywords (croatian)
Languageenglish
URN:NBNurn:nbn:hr:149:191793
Study programmeTitle: Applied Chemistry - Graduate study; specializations in: Environmental chemistry and green technologies, Advanced materials and technologies, Applied organic chemistry
Course: Advanced materials and technologies
Study programme type: university
Study level: graduate
Academic / professional title: sveučilišni/a magistar/magistra primijenjene kemije (sveučilišni/a magistar/magistra primijenjene kemije)
Type of resourceText
File originBorn digital
Access conditionsEmbargoed access
Embargo expiration date: 2025-07-01
Terms of useLicence In copyright icon
Created on2024-07-04 08:01:48