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undergraduate thesis
Sinteza Al2O3 sagorijevanjem uz glicin kao gorivo
Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology, 2019. urn:nbn:hr:149:744248
Grbešić, Tea
University of Zagreb
Faculty of Chemical Engineering and Technology

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

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Grbešić, T. (2019). Sinteza Al2O3 sagorijevanjem uz glicin kao gorivo (Undergraduate thesis). Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:149:744248

Grbešić, Tea. "Sinteza Al2O3 sagorijevanjem uz glicin kao gorivo." Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2019. https://urn.nsk.hr/urn:nbn:hr:149:744248

Grbešić, Tea. "Sinteza Al2O3 sagorijevanjem uz glicin kao gorivo." Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2019. https://urn.nsk.hr/urn:nbn:hr:149:744248

Grbešić, T. (2019). 'Sinteza Al2O3 sagorijevanjem uz glicin kao gorivo', Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, accessed 28 July 2024, https://urn.nsk.hr/urn:nbn:hr:149:744248

Grbešić T. Sinteza Al2O3 sagorijevanjem uz glicin kao gorivo [Undergraduate thesis]. Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology; 2019 [cited 2024 July 28] Available at: https://urn.nsk.hr/urn:nbn:hr:149:744248

T. Grbešić, "Sinteza Al2O3 sagorijevanjem uz glicin kao gorivo", Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, Zagreb, 2019. Available at: https://urn.nsk.hr/urn:nbn:hr:149:744248

Metadata
TitleSinteza Al2O3 sagorijevanjem uz glicin kao gorivo
Title (english)Combustion synthesis of alumina using glycine as a fuel
AuthorTea Grbešić
MentorStanislav Kurajica (mentor)
Committee memberStanislav Kurajica (predsjednik povjerenstva)
Committee memberVilko Mandić (član povjerenstva)
Committee memberGordana Matijašić (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Chemical Engineering and Technology
Zagreb
Defense date and country2019-09-12, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Basic Technical Sciences
Abstract
U ovom radu proučavao se utjecaj omjera oksidansa i goriva na krajnji produkt sinteze sagorijevanjem te karakteristike dobivenih praškastih uzoraka prije i nakon termičke obrade. Kao oksidans korišten je aluminijev nitrat nonahidrat, dok je glicin korišten kao gorivo te su sinteze provedene s ekvivalentnim omjerima goriva i oksidansa od 0.5:1, 1:1 i 1.5:1. Pripravljeni uzorci istraživani su diferencijalnom toplinskom i termogravimetrijskom analizom (DTA/TGA), rendgenskom difrakcijom praha (XRD) i infracrvenom spektroskopijom s Fourierovom transformacijom (FTIR) te su zatim termički obrađeni na 800 °C u trajanju od 2 sata. Obrađeni uzorci podvrgnuti su rendgenskoj difrakcijskoj analizi, pretražnoj elektronskoj mikroskopiji (SEM) te određivanju N2 adsorpcijsko-desorpcijskih izotermi i specifične površine Brunauer-Emmett-Teller (BET) metodom. Utvrđeno je da za sve omjere goriva i oksidansa dolazi do kristalizacije γ-Al2O3. Nisu primijećene značajne razlike u kristaličnosti između uzoraka, dobiveni uzorci imaju šupljikavu i poroznu morfologiju, a najveću specifičnu površinu ima uzorak pripravljen s najmanje goriva.
Abstract (english)
In this study, the effect of the fuel to oxidizer ratio on the final product of combustion synthesis, as well as the characteristics of thermally treated samples were investigated. Aluminum nitrate nonahydrate was used as oxidant, while alanine was used as fuel. The samples were synthesized by using 0.5:1, 1:1 and 1.5:1 fuel to oxidizer equivalent ratios. As-prepared samples were characterized using differential thermal and thermo-gravimetric analysis (DTA-TGA), powder X-ray diffraction (XRD) and Fourier transformed infrared spectroscopy (FTIR). They were then thermally treated at 800 °C for 2 hours. The thermally treated samples were characterized using powder X-ray diffraction, scanning electron microscopy (SEM) and N2 adsorption-desorption isotherms and specific surface area by applying the Brunauer-Emmett-Teller (BET) method. It was established that the crystallization of γ-Al2O3 occurs in all samples, regardless of the fuel to oxidizer ratio. Thermally treated samples have porous flake-like morphology, no significant differences in crystallinity were observed between the samples and the sample prepared with the smallest amount of fuel has the greatest specific surface area.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:149:744248
Study programmeTitle: Materials Science and Engineering - Undergraduate study
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka kemijskog inženjerstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka kemijskog inženjerstva)
Type of resourceText
File originBorn digital
Access conditionsOpen access
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Created on2023-05-10 08:32:24