Upotreba dihalkogenida prijelaznih metala za fotoelektrokemijsko cijepanje vode

master's thesis

• Title (english): Application of transition metal dichalcogenides in photoelectrochemical water splitting
• Author: Vera Vujasinović
• Mentor: Mario Novak (mentor)
• Committee member: Mario Novak (predsjednik povjerenstva)
• Committee member: Željko Skoko (član povjerenstva)
• Committee member: Maja Planinić (član povjerenstva)
• Committee member: Ivan Kokanović (član povjerenstva)
• Committee member: Katarina Jeličić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Science; (Department of Physics); Zagreb
• Defense date and country: 2020-09-30, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Physics

Abstract

U radu su proučavana dva dihalkogenida prijelaznih metala, MoS_2 i WS_2, kao potencijalni materijali za proizvodnju vodika fotoelektrokemijskim cijepanjem vode. Sintetizirani su nanostrukturirani materijali navedena dva spoja metodom kemijske depozicije pare, što je potvrđeno rendgenskom difrakcijom i Ramanovom spektroskopijom. Zatim je morfologija materijala ispitana skenirajućom elektronskom mikroskopijom. Provedena istraživanja predstavljaju prvi korak u istraživanju materijala iskoristivih za održivi gospodarski razvoj, koji je preduvjet za očuvanje Zemljinog ekosustava. S obzirom na to da MoS2 i WS2 spadaju u poluvodiče, u metodičkom dijelu rada objašnjena su načela fizike poluvodiča.

Abstract (english)

Two transition metals dichalcogenides, MoS_2 and WS_2, were studied as potential materials for hydrogen production by photoelectrochemical water splitting. These two compounds were synthesized as nanostructured materials via chemical vapor deposition method, which was confirmed by X-ray powder diffraction and Raman spectroscopy. The morphology of the materials was then examined by scanning electron microscopy. The conducted research represents the first step in the research of materials suitable for sustainable economic development, which is a prerequisite for the preservation of the Earth’s ecosystem. Since MoS2 and WS2 belong to the group of semiconductors, the principles of semiconductor physics are explained in the methodological part of the paper.

• Keywords: dihalkogenidi prijelaznih metala; vodik; proizvodnja vodika; kemijska depozicija pare; rentgenska difrakcija; skenirajući elektronski mikroskop; fizika poluvodiča
• Keywords (english): transition metal dichalcogenides; hydrogen; MoS2; WS2; chemical vapour deposition; X-ray powder diffraction; scanning tunneling microscope; semiconductors
• Language: croatian
• URN:NBN: urn:nbn:hr:217:844660
• Study programme: Title: Physics; specializations in: Education; Course: Education; Study programme type: university; Study level: integrated undergraduate and graduate; Academic / professional title: magistar/magistra edukacije fizike (magistar/magistra edukacije fizike)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2021-02-01 12:37:05