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master's thesis
Priprava grafenov oksid/o-fenilen diamin kompozitnih elektroda
Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology, 2016. urn:nbn:hr:149:126409
Glibo, Albina
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

Glibo, A. (2016). Priprava grafenov oksid/o-fenilen diamin kompozitnih elektroda (Master's thesis). Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:149:126409

Glibo, Albina. "Priprava grafenov oksid/o-fenilen diamin kompozitnih elektroda." Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2016. https://urn.nsk.hr/urn:nbn:hr:149:126409

Glibo, Albina. "Priprava grafenov oksid/o-fenilen diamin kompozitnih elektroda." Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2016. https://urn.nsk.hr/urn:nbn:hr:149:126409

Glibo, A. (2016). 'Priprava grafenov oksid/o-fenilen diamin kompozitnih elektroda', Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, accessed 25 November 2024, https://urn.nsk.hr/urn:nbn:hr:149:126409

Glibo A. Priprava grafenov oksid/o-fenilen diamin kompozitnih elektroda [Master's thesis]. Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology; 2016 [cited 2024 November 25] Available at: https://urn.nsk.hr/urn:nbn:hr:149:126409

A. Glibo, "Priprava grafenov oksid/o-fenilen diamin kompozitnih elektroda", Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, Zagreb, 2016. Available at: https://urn.nsk.hr/urn:nbn:hr:149:126409

Metadata
TitlePriprava grafenov oksid/o-fenilen diamin kompozitnih elektroda
Title (english)Preparation of graphene oxide/o-phenylene diamine composite electrodes
AuthorAlbina Glibo
MentorZoran Mandić (mentor)
Committee memberZoran Mandić (predsjednik povjerenstva)
Committee memberJozefina Katić (član povjerenstva)
Committee memberStanislav Kurajica (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Chemical Engineering and Technology
Zagreb
Defense date and country2016-09-27, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Chemical Engineering
Chemical Engineering in Material Development
Abstract
Cilj ovog rada bila je istražiti mogućnost modifikacije grafenovog oksida (GO) molekulama o-feniliendiamina (o-PDA) te naknadne polimerizacije vezanog o-PDA koja bi rezultirala nastankom oligomernih ili polimernih lanaca. U radu se također pratio utjecaj medija na vezanje o-PDA na GO elektrodu te je modifikacija provođena inkubacijom iz otopina različitih pH vrijednosti. Modifikacija grafenova oskida molekulama o-PDA se može odvijati putem različitih mehanizama koji uključuju kemijsku reakciju između karbonilnih skupina na GO i aromatske amino skupine o-PDA te fizikalno-kemijske faktore kao što su adsorpcija o-PDA na GO, njegova interkalacija između deponiranih slojeva ali i postojanje π-π interakcija se ne može isključiti. Svojstva modificiranih elektroda ispitivana su metodama cikličke voltametrije (CV) i elektrokemijske kvarc kristalne mikrovage (EQCM). Sva mjerenja su provedena u tro-elektrodnom sustavu u kojem je radna elektroda bila zlatom prekrivena kvarc kristalna elektroda, platina kao protu-elektroda i referentna Ag/AgCl elektroda. 1 M sumporna kiselina (H2SO4) je korištena kao elektrolit.
Abstract (english)
In this study an attempt was made to explore the possibility of modifying the graphene oxide with o-phenylenediamine molecules and subsequently polymerization of bound o-PDA that would result in oligomers or polymers chain formation. Also, the impact of media on binding of o-PDA on GO electrodes was monitored and modification was carried out by the incubation from the soulutions of different pH values. Graphene oxide modification with o-PDA can take place by different mechanisms which include chemical reaction between carbonyl groups of GO and aromatic amino grups of o-PDA and physical factors such as adsorption of o-PDA on GO and intercalation of o-PDA between deposited layers. Also, the presence of π-π interaction can not be excluded. In order to characterize modified electrodes, cyclic voltammetry (CV) and electrochemical quartz crystal microbalance (EQCM) methods were used. All measurements were carried out with three-electrode system in the potential range -0,2 and 0,9 V at a scan rate of 50 mV/s, in which Pt was counter electrode, Ag/AgCl electrode served as reference electrode, and working electrode was gold covered quartz crystal electrode. 1 M sulfuric acid (H2SO4) was used as electrolyte.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:149:126409
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: magistar/magistra primijenjene kemije (magistar/magistra primijenjene kemije)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2017-10-31 09:20:51