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undergraduate thesis
Modificirana sol-gel sinteza i karakterizacija cerijevog(IV) oksida dopiranog niklom
2024. urn:nbn:hr:182:923043
Gostić, Vedran
Josip Juraj Strossmayer University of Osijek
Department of Chemistry
Department of General, Inorganic and Physical Chemistry and Methodology of Chemistry

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Gostić, V. (2024). Modificirana sol-gel sinteza i karakterizacija cerijevog(IV) oksida dopiranog niklom (Undergraduate thesis). Osijek: Josip Juraj Strossmayer University of Osijek, Department of Chemistry. Retrieved from https://urn.nsk.hr/urn:nbn:hr:182:923043

Gostić, Vedran. "Modificirana sol-gel sinteza i karakterizacija cerijevog(IV) oksida dopiranog niklom." Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, 2024. https://urn.nsk.hr/urn:nbn:hr:182:923043

Gostić, Vedran. "Modificirana sol-gel sinteza i karakterizacija cerijevog(IV) oksida dopiranog niklom." Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, 2024. https://urn.nsk.hr/urn:nbn:hr:182:923043

Gostić, V. (2024). 'Modificirana sol-gel sinteza i karakterizacija cerijevog(IV) oksida dopiranog niklom', Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, accessed 07 December 2024, https://urn.nsk.hr/urn:nbn:hr:182:923043

Gostić V. Modificirana sol-gel sinteza i karakterizacija cerijevog(IV) oksida dopiranog niklom [Undergraduate thesis]. Osijek: Josip Juraj Strossmayer University of Osijek, Department of Chemistry; 2024 [cited 2024 December 07] Available at: https://urn.nsk.hr/urn:nbn:hr:182:923043

V. Gostić, "Modificirana sol-gel sinteza i karakterizacija cerijevog(IV) oksida dopiranog niklom", Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, Osijek, 2024. Available at: https://urn.nsk.hr/urn:nbn:hr:182:923043

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Metadata
TitleModificirana sol-gel sinteza i karakterizacija cerijevog(IV) oksida dopiranog niklom
Title (english)Modified sol-gel synthesis and characterization of nickel doped cerium(IV) oxide
AuthorVedran Gostić
MentorIgor Đerđ (mentor)
Committee memberAnamarija Stanković (predsjednik povjerenstva)
Committee memberIgor Đerđ (član povjerenstva)
Committee memberAna Amić (član povjerenstva)
GranterJosip Juraj Strossmayer University of Osijek
Department of Chemistry
(Department of General, Inorganic and Physical Chemistry and Methodology of Chemistry)
Osijek
Defense date and country2024-09-12, Croatia
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Chemistry
Inorganic Chemistry
Abstract
Cerij je vrlo reaktivan element koji je sklon reagiranju sa kisikom na zraku formiraju i cerijev(IV) oksid, CeO2. Svojstva cerija usko su povezana sa njegovom elektronskom konfiguracijom [Xe]4f¹5d¹6s², gdje se cerij nalazi ili u Ce3+ ili u Ce4+ stanju, bto utje e na njegovu sposobnost skladibtenja kisika u strukturi cerijevog(IV) oksida. Zbog svojih svojstava, ima sve biru uporabu u podru jima poput magnetizma gdje se koristi kao trajni magnet, dok se u komercijalne svrhe koristi u lakozapaljivim legurama sa ~eljezom (njem. Mischmetall) prisutnim u raznim upalja ima i svjetiljkama. Termi ka stabilnost cerijeva(IV) oksida razlog je primjene u heterogenim katalizatorima gdje se njegova svojstva i termi ka stabilnost mogu dodatno poboljbati dopiranjem s drugim elementima poput mangana, nikla, bakra ili gadolinija. Cerijev(IV) oksid predstavlja ekolobku i jeftiniju alternativu skupljim elementima koji se koriste u katalizatorima poput platine, zlata i dr. U ovom radu prou avan je utjecaj dopiranja cerijeva(IV) oksida niklom na njegova svojstva. Modificiranom sol-gel sintezom, pripravljeno je pet spojeva cerijeva(IV) oksida dopiranih s razli itim udjelima nikla od 16 % do 20 % koji su karakterizirani rendgenskom difrakcijom u prahu i termogravimetrijskom analizom.
Abstract (english)
Cerium is a rare earth element that is highly reactive with a tendency to react with oxygen in the air to form cerium(IV) oxide, CeO2. The properties of cerium are closely related to its electronic configuration [Xe]4f¹5d¹6s², as cerium can exist either in the Ce3+ or the Ce4+ states, affecting its ability to store oxygen in the crystal structure of cerium(IV) oxide. Owing to these properties, cerium has seen increasingly diverse applications in areas such as magnetism where it is used as a permanent magnet, but also in commercial applications where it is found in ignitable alloys paired with iron (De. Mischmetall)which is present in various lighters and lamps. Cerium(IV) oxide is also being used in heterogeneous catalysis, where its thermal stability can be further enhanced via doping with other elements such as manganese, nickel, copper, or gadolinium. Cerium(IV) oxide, being a fairly common element, represents an environmentally friendly and cost–effective alternative to more expensive elements traditionally found in catalysts. In this paper, the effects of doping cerium(IV) oxide with nickel were studied. Five compounds of cerium(IV) oxide doped with varying nickel contents, from 16 % to 20 %, were synthesized using modified sol-gel synthesis and characterized using X–ray powder diffraction, as well as thermogravimetric analysis.
Keywords
Languagecroatian
URN:NBNurn:nbn:hr:182:923043
Study programmeTitle: University Undergraduate Study program Chemistry
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) kemije (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) kemije)
Type of resourceText
File originBorn digital
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Created on2024-10-04 07:59:04