31. MeritveAleš Vaupotič, Vanja Mervič, Narvika Bovcon, 2015, umetniško delo Opis: Žanr: umetniški video. Dimenzije: UHD (3840 × 2160 slikovnih točk, ležeče, 25 sličic/sek.). Trajanje: 5 min. 38 sek. Format: .s4ud (SAMSUNG UHD TV), neskončna zanka predvajanja 5 datotek. 2015. Produkcija: Univerza v Novi Gorici, projekt SUNGREEN. Videi so bili narejeni z elektronskim vrstičnim mikroskopom v Centru za raziskave materialov na Univerzi v Novi Gorici v okviru Evropskega projekta SUNGREEN. Operater mikroskopa in priprava vzorcev: doc. dr. Mattia Fanetti. Uporabljeni so bili vzorci materialov iz raziskav doc. dr. Saima Emina ter vzorci nanožic dr. Silvie Rubini in dr. Valentine Zannier (IOM-CNR, Laboratorij TASC). Avtorji projekta se zahvaljujejo prof. dr. Matjažu Valantu in rektorju Univerze v Novi Gorici prof. dr. Danilu Zavrtaniku.
Najdeno v: osebi
Povzetek najdenega: ...mikroskopa in priprava vzorcev: doc. dr. Mattia Fanetti. Uporabljeni so bili vzorci materialov iz raziskav...
Ključne besede: tehniška slika, novomedijska umetnost, UHD video, materiali, mikroskopija, vrstični elektronski mikroskop, SEM
Objavljeno: 12.05.2016; Ogledov: 5104; Prenosov: 452 |
32. |
33. Solar-driven photocatalytic treatment of diclofenac using immobilized TiO2-based zeolite compositesUrška Lavrenčič Štangar, Mattia Fanetti, Marko Kete, Andraz Suligoj, Hrvoje Kušić, Subhan Salaeh, Marin Kovacic, Dionysios D. Dionysiou, Ana Lončarić Božić, 2016, izvirni znanstveni članek Opis: The study is aimed at evaluating the potential of
immobilized TiO2-based zeolite composite for solar-driven
photocatalytic water treatment. In that purpose, TiO2-iron-exchanged
zeolite (FeZ) composite was prepared using commercial
Aeroxide TiO2 P25 and iron-exchanged zeolite of ZSM5
type, FeZ. The activity of TiO2-FeZ, immobilized on glass
support, was evaluated under solar irradiation for removal of
diclofenac (DCF) in water. TiO2-FeZ immobilized in a form
of thin film was characterized for its morphology, structure,
and composition using scanning electron microscopy/energydispersive
x-ray spectroscopy (SEM/EDX). Diffuse reflectance
spectroscopy (DRS) was used to determine potential
changes in band gaps of prepared TiO2-FeZ in comparison
to pure TiO2. The influence of pH, concentration of hydrogen
peroxide, FeZ wt% within the composite, and photocatalyst
dosage on DCF removal and conversion efficiency by solar/
TiO2-FeZ/H2O2 process was investigated. TiO2-FeZ demonstrated
higher photocatalytic activity than pure TiO2 under
solar irradiation in acidic conditions and presence of H2O2.
Najdeno v: osebi
Ključne besede: Photocatalysis, Thin films, TiO2-FeZ, Solar irradiation, Diclofenac, Water Treatment
Objavljeno: 22.07.2016; Ogledov: 5174; Prenosov: 0
 Polno besedilo (2,88 MB) |
34. |
35. Effect of gamma irradiation on Schottky-contacted vertically aligned ZnO nanorod-based hydrogen sensorSapana Ranwa, Surendra Singh Barala, Mattia Fanetti, Mahesh Kumar, 2016, izvirni znanstveni članek Opis: We report the impact of gamma irradiation on the performance of a gold Schottky-contacted ZnO nanorod-based hydrogen sensor. RF-sputtered vertically aligned highly c-axis-oriented ZnO NRs were grown on Si(100) substrate. X-ray diffraction shows no significant change in crystal structure at low gamma doses from 1 to 5 kGy. As gamma irradiation doses increase to 10 kGy, the single crystalline ZnO structure converts to polycrystalline. The photoluminescence spectra also shows suppression of the near-band emission peak and the huge wide-band spectrum indicates the generation of structural defects at high gamma doses. At 1 kGy, the hydrogen sensor response was enhanced from 67% to 77% for 1% hydrogen in pure argon at a 150 °C operating temperature. However, at 10 kGy, the relative response decreases to 33.5%. High gamma irradiation causes displacement damage and defects in ZnO NRs, and as a result, degrades the sensor's performance as a result. Low gamma irradiation doses activate the ZnO NR surface through ionization, which enhances the sensor performance. The relative response of the hydrogen sensor was enhanced by ∼14.9% with respect to pristine ZnO using 1 kGy gamma ray treatment. © 2016 IOP Publishing Ltd.
Najdeno v: osebi
Ključne besede: ZnO, nanorods, gamma irradiation, sensor
Objavljeno: 12.01.2017; Ogledov: 3348; Prenosov: 0
Polno besedilo (4,60 MB) |
36. Improvement in the Sensing Response of Nano-Crystalline ZnO-Based Hydrogen Sensor: Effect of Swift Heavy Ion IrradiationSapana Ranwa, Mohit Kumar, Pawan Kumar Kulriya, Mattia Fanetti, Matjaž Valant, 2016, izvirni znanstveni članek Najdeno v: osebi
Ključne besede: Gas sensor, nano-crystalline, swift heavy ion irradiation, ZnO
Objavljeno: 13.01.2017; Ogledov: 4505; Prenosov: 0
Polno besedilo (2,31 MB) |
37. Photocatalytic degradation of gaseous toluene by using TiO2 nanoparticles immobilized on fiberglass clothAndraž Šuligoj, Ioana Cǎlin, Minoo Tasbihi, Mattia Fanetti, Urška Lavrenčič Štangar, 2017, izvirni znanstveni članek Najdeno v: osebi
Ključne besede: Titanium dioxide, immobilization, toluene, fiberglass cloth, gaseous photocatalysis
Objavljeno: 25.01.2017; Ogledov: 3954; Prenosov: 0
Polno besedilo (1,85 MB) |
38. Determination of petrophysical properties of sedimentary rocks by optical methodsDorota Korte, Dejan Kaukler, Mattia Fanetti, Humberto Cabrera, Efrain Daubronte, Mladen Franko, 2017, izvirni znanstveni članek Najdeno v: osebi
Ključne besede: sedimentary rocks, beam deflection spectroscopy, grain size distribution, petrophysical
properties, chemical composition
Objavljeno: 06.02.2017; Ogledov: 3487; Prenosov: 0
Polno besedilo (1014,14 KB) |
39. |
40. Atomic-level mechanisms of magnesium oxidationDmytro Orlov, Matjaž Valant, Sandra Gardonio, Mattia Fanetti, 2016, objavljeni znanstveni prispevek na konferenci Opis: Magnesium has been recently becoming an increasingly popular material for various applications. However, excessive chemical reactivity, and oxidation rate in particular, is a major obstruction on the way of Mg to become widely adopted. A significant problem causing the lack of Mg reactivity control is insufficient understanding of mechanisms involved in the oxidation of magnesium surface. Herewith we present the investigation of atomic-level mechanisms of oxidation initiation and propagation in pure Mg. Namely, X-ray photoelectron spectroscopy at synchrotron Elettra was used as a surface sensitive direct method to determine the valence of Mg and O and the valence band states at the early stage of oxide formation over a principal, most densely packed, crystallographic plane (0001) in pure Mg. The mechanisms of oxygen adsorption on magnesium free surface followed by oxidation (i.e. initiation and kinetics of MgO formation) are clarified. Copyright © 2016 by The Minerals, Metals & Materials Society. All rights reserved.
Najdeno v: osebi
Ključne besede: Magnesium, Oxidation, Synchrotron radiation, X-ray photoelectron spectroscopy
Objavljeno: 25.08.2017; Ogledov: 3771; Prenosov: 0
Polno besedilo (2,91 MB) |
