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undergraduate thesis
Primjena ugljikovih nanocjevčica u izradi ion-selektivnih elektroda bez unutarnjeg elektrolita
Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology, 2021. urn:nbn:hr:149:206230
Boček, Željka
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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Boček, Ž. (2021). Primjena ugljikovih nanocjevčica u izradi ion-selektivnih elektroda bez unutarnjeg elektrolita (Undergraduate thesis). Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:149:206230

Boček, Željka. "Primjena ugljikovih nanocjevčica u izradi ion-selektivnih elektroda bez unutarnjeg elektrolita." Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2021. https://urn.nsk.hr/urn:nbn:hr:149:206230

Boček, Željka. "Primjena ugljikovih nanocjevčica u izradi ion-selektivnih elektroda bez unutarnjeg elektrolita." Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2021. https://urn.nsk.hr/urn:nbn:hr:149:206230

Boček, Ž. (2021). 'Primjena ugljikovih nanocjevčica u izradi ion-selektivnih elektroda bez unutarnjeg elektrolita', Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, accessed 22 November 2024, https://urn.nsk.hr/urn:nbn:hr:149:206230

Boček Ž. Primjena ugljikovih nanocjevčica u izradi ion-selektivnih elektroda bez unutarnjeg elektrolita [Undergraduate thesis]. Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology; 2021 [cited 2024 November 22] Available at: https://urn.nsk.hr/urn:nbn:hr:149:206230

Ž. Boček, "Primjena ugljikovih nanocjevčica u izradi ion-selektivnih elektroda bez unutarnjeg elektrolita", Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, Zagreb, 2021. Available at: https://urn.nsk.hr/urn:nbn:hr:149:206230

Metadata
TitlePrimjena ugljikovih nanocjevčica u izradi ion-selektivnih elektroda bez unutarnjeg elektrolita
Title (english)Application of carbon nanotubes in the development of ion-selective electrodes without internal electrolyte
AuthorŽeljka Boček
MentorPetar Kassal (mentor)
Committee memberPetar Kassal (predsjednik povjerenstva)
Committee memberStjepan Milardović (član povjerenstva)
Committee memberHelena Otmačić Ćurković (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Chemical Engineering and Technology
Zagreb
Defense date and country2021-09-02, Croatia
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Chemistry
Abstract
U ovom radu istražena je primjena ugljikovih nanocjevčica (CNT) u ulozi čvrstog kontakta u izradi ion-selektivnih elektroda bez unutarnjeg elektrolita. Ugljikove nanocjevčice dispergirane su u etanolu uz dodatak polivinil-butirala (PVB) za stabilizaciju otopine. Stabilnost disperzija okarakterizirana je UV-Vis spektrofotometrijom, a vodljivost je ispitana mjerenjem otpora tankih filmova pripremljenih rotacijskim oblaganjem. Ion-selektivne elektrode za detekciju amonija pripremljene su nakapavanjem različitih volumena najkoncentriranije otopine CNT/PVB na grafitnu disk elektrodu te otopljene ion selektivne membrane s nonaktinom kao ionoforom. Potenciometrijskim mjerenjima pronađen je optimalan omjer čvrstog kontakta i membrane koji daje rezultate usporedive s literaturnim vrijednostima.
Abstract (english)
In this work the application of carbon nanotubes (CNT) as solid contact in the development of ion-selective electrodes without internal electrolyte was studied. Carbon nanotubes were dispersed in ethanol with polyvinyl-butiral (PVB) added for stabilization. Dispersion stability was characterized by UV-Vis spectrophotometry, while the conductivity of thin films prepared by spin-coating was tested by measuring resistance by the four point probe method. Ion-selective electrodes for detection of ammonium ion were prepared by drop-casting variable amounts of the most concentrated CNT/PVB solution followed by the ion-selective membrane cocktail with nonactin as ionophore. Potentiometric measurements were conducted and the optimal ratio of solid contact vs. membrane was found, with results comparable with literature values.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:149:206230
Study programmeTitle: Applied Chemistry - Undergraduate 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: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) primijenjene kemije (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) primijenjene kemije)
Type of resourceText
File originBorn digital
Access conditionsOpen access
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Created on2023-03-23 13:49:11