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undergraduate thesis
Elektrokemijsko ponašanje bizmuta u boratnom elektrolitu
završni rad
2019. urn:nbn:hr:167:440129
Sirovina, Antonela
University of Split
Faculty of Chemistry and Technology
Division of Chemistry

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Sirovina, A. (2019). Elektrokemijsko ponašanje bizmuta u boratnom elektrolitu : završni rad (Undergraduate thesis). Split: University of Split, Faculty of Chemistry and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:167:440129

Sirovina, Antonela. "Elektrokemijsko ponašanje bizmuta u boratnom elektrolitu : završni rad." Undergraduate thesis, University of Split, Faculty of Chemistry and Technology, 2019. https://urn.nsk.hr/urn:nbn:hr:167:440129

Sirovina, Antonela. "Elektrokemijsko ponašanje bizmuta u boratnom elektrolitu : završni rad." Undergraduate thesis, University of Split, Faculty of Chemistry and Technology, 2019. https://urn.nsk.hr/urn:nbn:hr:167:440129

Sirovina, A. (2019). 'Elektrokemijsko ponašanje bizmuta u boratnom elektrolitu : završni rad', Undergraduate thesis, University of Split, Faculty of Chemistry and Technology, accessed 11 December 2024, https://urn.nsk.hr/urn:nbn:hr:167:440129

Sirovina A. Elektrokemijsko ponašanje bizmuta u boratnom elektrolitu : završni rad [Undergraduate thesis]. Split: University of Split, Faculty of Chemistry and Technology; 2019 [cited 2024 December 11] Available at: https://urn.nsk.hr/urn:nbn:hr:167:440129

A. Sirovina, "Elektrokemijsko ponašanje bizmuta u boratnom elektrolitu : završni rad", Undergraduate thesis, University of Split, Faculty of Chemistry and Technology, Split, 2019. Available at: https://urn.nsk.hr/urn:nbn:hr:167:440129

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Metadata
TitleElektrokemijsko ponašanje bizmuta u boratnom elektrolitu : završni rad
Title (english)Electrochemical behavior of bismuth in borate elecrtolyte : bachelor thesis
AuthorAntonela Sirovina
MentorZoran Grubač (mentor)
MBZ: 126072
Committee memberSenka Gudić (predsjednik povjerenstva)
Committee memberIvana Škugor Rončević (član povjerenstva)
Committee memberZoran Grubač (član povjerenstva)
GranterUniversity of Split
Faculty of Chemistry and Technology
(Division of Chemistry)
Split
Defense date and country2019, Croatia
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Chemistry
Abstract
U ovom radu istraživana je izgradnja oksidnog filma na bizmutu u otopini boratnog pufera, pH = 8.1, pri sobnoj temperaturi metodom cikličke voltametrije, potenciostatskom pulsnom metodom i elektrokemijskom impedancijskom spektroskopijom. Tijekom anodne polarizacije u boratnom elektrolitu bizmut se prekriva slojem Bi 2 O 3 Cikličkom voltametrijom određeni su potencijali anodne nukleacije Bi 2 O 3 te njegove katodne dekompozicije. Impedancijska mjerenja provedena su u širokom području frekvencija na potenciostatski izgrađenom filmu. Predloženi ekvivalentni električni krug s dvije vremenske konstante opisuje električka i dielektrička svojstva izgrađenog filma. Iz impedancijskih mjerenja provedenih na konstantnim frekvencijama Mott-Schottkyevom analizom potvrđeno je da je Bi 2 O 3 poluvodič n-tipa te da mu potencijal ravnih vrpci, E FB , iznosi -0.72 V vs. Ag/AgCl/zas. KCl.
Abstract (english)
Formation of an oxide film on the polycrystalline bismuth electrode in borate buffer solution, pH = 8.1, at room temperature was investigated by method of cyclic voltammetry, potentiostatic pulse method and electrochemical impedance spectroscopy. During the anodic polarization in the borate electrolyte, the bismuth is covered with a layer of Bi 2 O 3 . The potential of Bi 2 O 3 anodic nucleation and its cathodic decomposition were determined by cyclic voltametry. Impedance measurements were carried out in a wide range of frequencies on the potentiostatic formed film. The proposed equivalent electric circuit with two time constants describes the electrical and dielectric properties of the formed film. From impedance measurements carried out on the constant frequencies, the Mott- Schottky analysis confirms that the Bi 2 O 3 is n-type of semiconductor with a flat band potential, E FB , = -0.72 V vs. Ag/AgCl/sat. KCl.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:167:440129
Study programmeTitle: 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
Access conditionsOpen access
Terms of useLicence In copyright icon
Public noteKljučne riječi doradio knjižničar/ Key words are revised by the librarian
Created on2019-09-20 10:24:54