prikaz prve stranice dokumenta Elektrokromizam grafenov oksid/polianilin kompozitnih materijala
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undergraduate thesis
Elektrokromizam grafenov oksid/polianilin kompozitnih materijala
Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology, 2016. urn:nbn:hr:149:069522
Turković, Anamarija
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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Turković, A. (2016). Elektrokromizam grafenov oksid/polianilin kompozitnih materijala (Undergraduate thesis). Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:149:069522

Turković, Anamarija. "Elektrokromizam grafenov oksid/polianilin kompozitnih materijala." Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2016. https://urn.nsk.hr/urn:nbn:hr:149:069522

Turković, Anamarija. "Elektrokromizam grafenov oksid/polianilin kompozitnih materijala." Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2016. https://urn.nsk.hr/urn:nbn:hr:149:069522

Turković, A. (2016). 'Elektrokromizam grafenov oksid/polianilin kompozitnih materijala', Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, accessed 27 December 2024, https://urn.nsk.hr/urn:nbn:hr:149:069522

Turković A. Elektrokromizam grafenov oksid/polianilin kompozitnih materijala [Undergraduate thesis]. Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology; 2016 [cited 2024 December 27] Available at: https://urn.nsk.hr/urn:nbn:hr:149:069522

A. Turković, "Elektrokromizam grafenov oksid/polianilin kompozitnih materijala", Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, Zagreb, 2016. Available at: https://urn.nsk.hr/urn:nbn:hr:149:069522

Metadata
TitleElektrokromizam grafenov oksid/polianilin kompozitnih materijala
Title (english)Electrochromism of graphene oxide/polyaniline composite materials
AuthorAnamarija Turković
MentorZoran Mandić (mentor)
Committee memberZoran Mandić (predsjednik povjerenstva)
Committee memberHelena Otmačić Ćurković (član povjerenstva)
Committee memberMirela Leskovac (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Chemical Engineering and Technology
Zagreb
Defense date and country2016-09-19, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Chemical Engineering
Chemical Engineering in Material Development
Abstract
U ovom radu ispitivala su se elektrokromatska svojstva kompozita grafenovog oksida i polianilina. U tu svrhu pripremale su se dvije vrste elektroda. Kao podloga korišteno je stakalce na kojem je nanesen vodljivi sloj indij kositrevog oksida (ITO staklo). Grafenov oksid korišten u ovom radu sintetiziran je iz grafita Staudenmaier metodom. Kompozitna elektroda pripravljena je nanošenjem sloja grafenovog oksida metodom „spincoating“ na ITO stakalce nakon čega je slijedio postupak elektropolimerizacije kojim se deponirao polianilin. Pripravljene elektrode testirale su se snimanjem UV/Vis spektara kod različitih oksidacijskih stanja polianilina. Modifikacija grafenovog oksida kemijskom reakcijom anilina i kisikovih funkcionalnih skupina nije dala zadovoljavajuće rezultate zbog toga što nije došlo do funkcionalizacije kisikovih skupina. Za elektropolimerizaciju približno iste debljine sloja polianilina na ITO stakalce i elektrodu na kojoj je sloj GO/ITO prilikom cikličke voltametrije potreban je različit broj ciklusa zbog slabije vodljivosti GO u odnosu na ITO. Za uzorak PANI/ITO, iz UV/VIS spektra uočljiva je promjena apsorpcije prilikom promjene potencijala pri točno određenim valnim duljinama. Kod uzorka PANI/GO/ITO potencijal se povećava u cijelom dijelu spektra, a najveće promjene javljaju se kod 560 nm.
Abstract (english)
The aimof this paper is a determination of electrochromic properties of graphene oxide /polianilinec omposite material. Two kinds of electrodes were prepared. The conductive indium tin oxide covered glass (ITO glass) was used as an electrode substrate. Graphene oxide used in this work was synthesized from the graphene through the Staudenmier method. Composite electrode was prepared by spin coating of graphene oxide on ITO substrate and with subsequent electropolymerization of aniline from its solution by cyclic voltammetry. Prepared electrodes were tested by taking UV/Vis spectra at different oxidation states of polyaniline. Graphene oxide modification by a chemical reaction of aniline and oxygen functional groups didn't produce satisfactory results. To reach the electropolymerization of the proportionaly thick layer of aniline using the ITO glass and electrode containing the layer of GO/ITO during the cyclic voltammetry requires a different number of cycles due to GO's lower conductivity compared to ITO. For the sample of PANI/ITO, an absorption change of the UV/VIS spectra is obviousduring the change of potential under the precisely determined wave lenghts. Concerning the PANI/GO/ITO sample, the potential is increasing in the whole of the spectra, especially at the 560 nm.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:149:069522
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 on2018-02-07 13:14:09