1. Silica-coated ▫$Bi2_Se_3$▫ topological insulator nanoparticles: preserving their optical properties and make them biocompatible : preserving their optical properties and make them biocompatibleBlaž Belec, Nina Kostevšek, Giulia Della Pelle, Sebastjan Nemec, Slavko Kralj, Martina Bergant Marušič, Sandra Gardonio, Mattia Fanetti, Matjaž Valant, 2023, objavljeni povzetek znanstvenega prispevka na konferenci Ključne besede: topological insulator, bismuth selenide, photo-thermal material, biocompatibility, nanoparticles
Objavljeno v RUNG: 19.10.2023; Ogledov: 711; Prenosov: 3
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3. Characterization of Cu and Zr modified TiO[sub]2 photocatalysts by photothermal beam deflection spectrometryMahmoud Abdelhamid, Dorota Korte, Humberto Cabrera, Zeinab Ebrahimpour, Olena Pliekhova, Urška Lavrenčič Štangar, Mladen Franko, 2021, objavljeni povzetek znanstvenega prispevka na konferenci Ključne besede: photocatalysts, TiO2, Cu/Zr, photodegradation, material characterization, photothermal spectrometry
Objavljeno v RUNG: 23.11.2021; Ogledov: 2265; Prenosov: 0
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4. Thermo-optical characterization of Cu- and Zr-modified TiO[sub]2 photocatalysts by beam deflection spectrometryMahmoud Abdelhamid, Dorota Korte, Humberto Cabrera, Olena Pliekhova, Zeinab Ebrahimpour, Urška Lavrenčič Štangar, Mladen Franko, 2021, izvirni znanstveni članek Ključne besede: photocatalysts, TiO2, Cu/Zr, photodegradation, material characterization, photothermal spectrometry
Objavljeno v RUNG: 23.11.2021; Ogledov: 1676; Prenosov: 96
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6. Self-amplified photo-induced gap quenching in a correlated electron materialMathias Stefan, Eich Steffen, Jurij Urbančič, 2016, izvirni znanstveni članek Opis: Capturing the dynamic electronic band structure of a correlated material presents a powerful capability for uncovering the complex couplings between the electronic and structural degrees of freedom. When combined with ultrafast laser excitation, new phases of matter can result, since far-from-equilibrium excited states are instantaneously populated. Here, we elucidate a general relation between ultrafast non-equilibrium electron dynamics and the size of the characteristic energy gap in a correlated electron material. We show that carrier multiplication via impact ionization can be one of the most important processes in a gapped material, and that the speed of carrier multiplication critically depends on the size of the energy gap. In the case of the charge-density wave material 1T-TiSe 2 , our data indicate that carrier multiplication and gap dynamics mutually amplify each other, which explains—on a microscopic level—the extremely fast response of this material to ultrafast optical excitation.
Self-amplified photo-induced gap quenching in a correlated electron material. Available from: https://www.researchgate.net/publication/308804379_Self-amplified_photo-induced_gap_quenching_in_a_correlated_electron_material [accessed Apr 20, 2017].
Ključne besede: high harmonic generation, charge-density wave material, 1T-TiSe2, non-equilibrium electron dynamics, ultrafast surface science
Objavljeno v RUNG: 20.04.2017; Ogledov: 5472; Prenosov: 0
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7. The mechanism of Li2S activation in lithium-sulfur batteries: Can we avoid the polysulfide formation?Alen Vižintin, Laurent Chabanne, Elena Tchernychova, Iztok Arčon, Lorenzo Stievano, Giuliana Aquilanti, Markus Antonietti, Tim-Patric Fellinger, Robert Dominko, 2017, izvirni znanstveni članek Opis: Electrochemical reactions in the LieS batteries are considered as a multistep reaction process with at least
2e3 equilibrium states. Here we report a possibility of having a conversion of Li2S into sulfur without
detectible formation of polysulfides. That was confirmed by using a novel material system consisting of
carbon coated Li2S particles prepared by carbothermal reduction of Li2SO4. Two independent in operando
measurements showed direct oxidation of Li2S into sulfur for this system, with almost negligible formation
of polysulfides at potentials above 2.5 V vs. Li/Liþ. Our results link the diversity of first charge profiles in the
literature to the Li2S oxidation mechanism and show the importance of ionic wiring within the material.
Furthermore, we demonstrate that the Li2S oxidation mechanism depends on the relative amount of
soluble sulfur in the electrolyte. By controlling the type and the amount of electrolyte within the encapsulating
carbon shell, it is thereby possible to control the reaction mechanism of Li2S activation.
Ključne besede: Lithium-sulfur batteries
Li2S active material
XAS
UV/Vis spectroscopy
Li2S activation
Objavljeno v RUNG: 03.03.2017; Ogledov: 5121; Prenosov: 0
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8. eastweetswest : :::::::: a performance process reflecting the state of unityPeter Purg, 2016, umetniško delo Opis: "After more than a quarter century thoughts and actions were shared, reflecting the state of unity.
Ključne besede: " The Twitter account of grüntaler9 invited everyone to tweet/comment upon the topic of East & West. The performer arranged selected feeds, printed out on paper and cut to tile size onto the Black & White floor tiles of the space.
Performative (re)actions emerged by performer and participants, online and on site, critical or speculative, mythical or manipulative... Live feeds were used primarily, recycling material was an option. Text was used primarily, pictures are an option.
After more than a quarter century thoughts and actions were shared, reflecting the state of unity."
Live Performance 12 – 14h at grüntaler9, berlin, Germany
Tweets and responses @ :://twitter.com/Gruentaler9
Objavljeno v RUNG: 16.11.2016; Ogledov: 6741; Prenosov: 0 |
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10. ASSESSMENT OF THE DEVELOPMENT POTENTIAL OF FOREST-WOOD PROCESSING CHAINSlavica Ilc, 2016, magistrsko delo Opis: Slovenia is the third most forested country in Europe. Nevertheless, in the last twenty five years this natural wealth did not get the adequate role in national development strategies, which unnecessary reduced their sustainability potential and lead the Slovenian forest-wood industry in a very bad situation. The forest-based sector in Europe is in a period of profound structural changes, which requires reassessment of the wood-chain products outlook.
In the master’s thesis, the importance of integration of forestry and wood industry has been evaluated with the meaningful connection of different analytical methods: material flow analysis (MFA), SWOT analysis and life cycle assessment (LCA). With comparison of the roundwood and sawnwood material flow in Slovenia, Italy and Austria, the critical points in the Slovenian forest-wood chain were identified. In contrast to Austria and Italy, where wood is intensively reworked, Slovenia exports large amounts of untreated roundwood. As a consequence, the gross value added (GVA) per employee of wood sector in Slovenia reaches only 40 % of GVA in Austria and 50 % of GVA in Italy. Not only MFA, but also the SWOT and LCA analyses show, that wood processing into finished products is important both in terms of the value added and the environmental impact, as well as for more decisive shift of the economy towards a low-carbon society.
Slovenian economy could take advantage of its sustainable development potential to a great extent by increasing the level of raw material self-sufficiency and energy independency. It is essential to re-establish forest-wood processing chain, to rework wood at home into products with the highest added value, and to use wood residues as renewable feedstock in green chemistry industry and for transformation into energy with novel technologies. Slovenian vision of sustainable economy has great potential, but requires enhanced cross-sectoral integration of forestry, wood processing, construction, chemistry and energy.
Ključne besede: sustainability, forest-wood processing chain, development potential, material flow analysis (MFA), SWOT analysis, life cycle assessment (LCA)
Objavljeno v RUNG: 30.09.2016; Ogledov: 7600; Prenosov: 278
 Celotno besedilo (1,77 MB) |
