Faculty of Technology and Metallurgy
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Item type:Publication, Electrochemical formation of anodic oxide films on Nb surfaces: ellipsometric and Raman spectroscopical studies(SPRINGER, 2007-02); ;Arsov, Ljubomir ;Hebestreit, Niels ;Anders, AndreasPlieth, WaldfriedElectrochemical formation of anodic oxide films on niobium (Nb) surfaces in 1 M H2SO4 solutions was studied using ellipsometry and Raman spectroscopy. By in situ ellipsometric measurements, the coefficient of film thickness growth and the complex index of refraction of anodic oxide films in the voltage range between 0 and 100 V were determined. The Raman spectra reveal that the thin passive films are amorphous. In the beginning of crystallization, the anodic oxide films consist of mixtures of NbO2 and Nb2O5, while NbO2 is completely transformed to Nb2O5 for thicker and well-crystallized films. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Photoelectrochemical Study of Anodically Formed Oxide Films on Niobium Surfaces(CROATIAN CHEMICAL SOC, 2010-07-01) - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Photoelectrochemical investigations of thermally formed films on titanium surfaces(Society of Chemists and Technologists of Macedonia, 2009-12-15)The semi-conducting and photoelectrical properties of TiO2 films prepared with thermal oxidation of titanium in the temperature range from 200 to 600 degrees C were studied. Short theoretical background for application of photocurrent in semiconductor electrochemistry was presented. For all investigated temperatures and times of thermal treatments the semi-conducting properties as photocurrent peaks and band gap energies were determined. At lower temperatures the anodic values of photocurrent peaks confirmed the existence of n-type semiconducting TiO2 films with amorphous structure. With increasing the temperature and time of thermal treatment the development of crystalline structure in the film is followed with small decreasing of band gap energy. For films formed at higher temperatures and longer time of thermal treatment the determined band gap energies are close to the 3 eV that corresponds to the rutile structure of the film. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Electrochemical behavior of tantalum in potassium hydroxide solutions(International Association of Physical Chemists (IAPC), 2018-08-31)The electrochemical behavior of tantalum in various concentrations of KOH solutions (0.1 M -10 M), was investigated using the evolution of the open circuit potentialin time, cyclic voltammetry and ellipsometricmeasurements. Depending on KOH concentrations, the open circuit potential measurements have shown three distinct behaviors concerning oxide film formation on the electrode surface and its dissolution. The cyclic voltammetry measurements were performed in various potential ranges, from -1.4 to 8 V, different concentrations of KOH solutions (0.110 M) and sweep rates ranging from 0.005 V/s to 1 V/s. In the passive region, very stable passive films were formed, which reduction has not been possible during cathodic polarization even at highly concentrated KOH solutions. In the trans-passive region, the very strong peak at 1.65 V was monitored, which nature and chemical composition is still not well known. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Translation–Modulation Invariant Banach Spaces of Ultradistributions(Springer Science and Business Media LLC, 2018-04-30) ;Dimovski, Pavel ;Pilipović, Stevan; Vindas, Jasson - Some of the metrics are blocked by yourconsent settings
Item type:Publication, High-Performance UV Protective Waterborne Polymer Coatings Based on Hybrid Graphene/Carbon Nanotube Radicals Scavenging Filler(Particle, John Wiley & Sons, 2019-05-14)Marija Prosheva, Mohammad Ali Aboudzadeh, Gracia Patricia Leal, Jadranka Blazhevska Gilev and Radmila Tomovska - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Estimating rapidly and precisely the concentration of beta carotene in mango homogenates by measuring the amplitude of optothermal signals, chromaticity indices and the intensities of Raman peaks(Elsevier BV, 2010-08) ;Bicanic, Dane; ;Luterotti, Svjetlana ;Twisk, CharlotteBuijnsters, Josephus Gerardus - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Anthocyanin composition of Vranec, Cabernet Sauvignon, Merlot and Pinot Noir grapes as indicator of their varietal differentiation(Springer Science and Business Media LLC, 2011-01-22) ;Dimitrovska, Maja; ; Murkovic, Michael - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Lactobacillus plantarum extracellular metabolites: In vitro assessment of probiotic effects on normal and cancerogenic human cells(Elsevier BV, 2014-12); ;Cencič, Avrelija ;Winkelhausen, EleonoraLangerholc, Tomaž - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Correlation of trans-Lycopene Measurements by the HPLC Method with the Optothermal and Photoacoustic Signals and the Color Readings of Fresh Tomato Homogenates(Springer Science and Business Media LLC, 2010-03) ;Bicanic, Dane; ;Luterotti, Svjetlana ;Marković, Ksenijavan Twisk, CharlotteThe trans-lycopene content of fresh tomato homogenates was assessed by means of the laser photoacoustic spectroscopy, the laser optothermal window, micro-Raman spectroscopy, and colorimetry; none of these methods require the extraction from the product matrix prior to the analysis. The wet chemistry method (high-performance liquid chromatography) was used as the absolute quantitative method. Analytical figures of merit for all methods were compared statistically; best linear correlation was achieved for the chromaticity index a* and chroma C*.
