21. Conjugated polymer mesocrystals with structural and optoelectronic coherence and anisotropy in three dimensionsLiyang Yu, Egon Pavlica, Ruipeng Li, Yufei Zhong, Carlos Silva, Gvido Bratina, Christian Műller, Aram Amassian, Natalie Stingelin, 2022, izvirni znanstveni članek Ključne besede: organic semiconductor, time-of-flight, charge carrier mobility, solid processing, large crystal Objavljeno v RUNG: 28.02.2023; Ogledov: 963; Prenosov: 82 Povezava na celotno besedilo Gradivo ima več datotek! Več... |
22. Copper bioavailability and leaching in conventional and organic viticulture under environmental stressErika Jež, Elisa Pellegrini, Marco Contin, 2023, izvirni znanstveni članek Opis: The continuous use of Cu-based fungicides in viticulture has caused Cu accumulation in soils, which represents a major environmental and toxicological concern. The purpose of this study was to verify whether the organic management would be more resilient to temperature and moisture stresses in comparison to conventional practices. Two organic and two conventional vineyard soils, contrasting in pH, were exposed for six months to temperature stress (29 °C), moisture stress (10% water holding capacity—WHC), and combined stresses (29 °C—10% WHC). Main soil properties, Cu speciation, bioavailability, and leaching were monitored before and after 6 months’ incubation. Results confirm that the increase of temperature caused a decrease in both total organic carbon (TOC) and dissolved organic carbon (DOC) (up to 19% and 49%, respectively), a decrease in available ammonium, and an increase in nitrate. Moisture stress tends to mitigate some of these changes. Despite that, changes of Cu bioavailability and leaching were limited and rarely significant. Moreover, no regular trends between conventional and organic management could be observed. Changes in soil pH and total N (TN) appeared as the most influencing properties to regulate Cu behavior in vineyard soils. Calcareous soils were more resistant to environmental stresses compared to acid soils, regardless of the type of management (conventional or organic). Ključne besede: soil copper, climate changes, soil organic matter, organic viticulture, BCR speciation Objavljeno v RUNG: 22.02.2023; Ogledov: 1158; Prenosov: 17 Celotno besedilo (2,57 MB) Gradivo ima več datotek! Več... |
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24. Salicylaldehydate coordinated two-dimensional-conjugated metal-organic frameworksAbdul Khayum Mohammed, Pilar Pena-Sánchez, Ajmal Pandikassala, Safa Gaber, Ayesha Alkhoori, Tina Škorjanc, Kyriaki Polychronopoulou, Sreekumar Kurungot, Felipe Gándara, Dinesh Shetty, 2023, izvirni znanstveni članek Ključne besede: metal-organic framework, 2D materials, salicylaldehyde, thin films, mechanochemistry Objavljeno v RUNG: 10.02.2023; Ogledov: 1136; Prenosov: 1 Povezava na datoteko Gradivo ima več datotek! Več... |
25. Influence of P3HT:PCBM ratio on thermal and transport properties of bulk heterojunction solar cellsDorota Korte, Egon Pavlica, Domen Klančar, Gvido Bratina, Michal Pawlak, Ewa Gondek, Peng Song, Junyan Liu, B. Derkowska-Zielińska, 2023, izvirni znanstveni članek Ključne besede: organic bulk-heterojunction solar cells, polymer-fullerene solar cells, photothermal beam deflection spectrometry, non-radiative recombination, thermal diffusivity, frequency domain methods Objavljeno v RUNG: 09.01.2023; Ogledov: 1460; Prenosov: 19 Celotno besedilo (2,58 MB) Gradivo ima več datotek! Več... |
26. Van der Waals heterostructuresVadym Tkachuk, doktorska disertacija Ključne besede: Graphene, hexagonal boron nitride, PDI8-CN2, organic semiconductor, heterostructure, charge transport, electronic properties, 2D crystal, 2D crystal transfer, tunneling. Objavljeno v RUNG: 24.10.2022; Ogledov: 1411; Prenosov: 50 Celotno besedilo (38,13 MB) |
27. Hydrophobicity Tuning in Isostructural Urchin-Shaped Covalent Organic Framework Nanoparticles by Pore Surface Engineering for Oil–Water SeparationGobinda Das, Tina Skorjanc, Thirumurugan Prakasam, Bikash Garai, Salma Abubakar, Christina Zalch Saad, Felipe Gandara, Renu Pasricha, Sudhir Kumar Sharma, Sabu Varghese, Ramesh Jagannathan, Mark A. Olson, Ali Trabolsi, 2022, izvirni znanstveni članek Ključne besede: Adsorption, Covalent organic frameworks, Hydrophobicity, Lipids, Materials Objavljeno v RUNG: 26.09.2022; Ogledov: 1252; Prenosov: 0 Gradivo ima več datotek! Več... |
28. Covalent Organic Framework Based on Azacalix[4]arene for the Efficient Capture of Dialysis Waste ProductsTina Škorjanc, Dinesh Shetty, Felipe Gándara, Pascal Simon, Nawavi Naleem, Salma Abubakar, Liaqat Ali, Abdul Khayum Mohammed, Jesus Raya, Serdal Kirmizialtin, 2022, izvirni znanstveni članek Ključne besede: azacalixarene, covalent organic frameworks, dialysis, uric acid, creatinine, adsorption Objavljeno v RUNG: 08.09.2022; Ogledov: 1571; Prenosov: 0 Gradivo ima več datotek! Več... |
29. European Aerosol Phenomenology - 8: Harmonised Source Apportionment of Organic Aerosol using 22 Year-long ACSM/AMS DatasetsGang Chen, Francesco Canonaco, Anna Tobler, Griša Močnik, MaríaCruz Minguillón, André Prévôt, 2022, izvirni znanstveni članek Opis: Organic aerosol (OA) is a key component to total submicron particulate matter (PM1), and comprehensive knowledge of OA sources across Europe is crucial to mitigate PM1 levels. Europe has a well-established air quality research infrastructure from which yearlong datasets using 21 aerosol chemical speciation monitors (ACSMs) and 1 aerosol mass spectrometer (AMS) were gathered during 2013-2019. It includes 9 non-urban and 13 urban sites. This study developed a state-of-the-art source apportionment protocol to analyse long-term OA mass spectrum data by applying the most advanced source apportionment strategies (i.e., rolling PMF, ME-2, and bootstrap). This harmonised protocol was followed strictly for all 22 datasets, making the source apportionment results more comparable. In addition, it enables the quantifications of the most common OA components such as hydrocarbon-like OA (HOA), biomass burning OA (BBOA), cooking-like OA (COA), more oxidised-oxygenated OA (MO-OOA), and less oxidised-oxygenated OA (LO-OOA). Other components such as coal combustion OA (CCOA), solid fuel OA (SFOA: mainly mixture of coal and peat combustion), cigarette smoke OA (CSOA), sea salt (mostly inorganic but part of the OA mass spectrum), coffee OA, and ship industry OA could also be separated at a few specific sites. Oxygenated OA (OOA) components make up most of the submicron OA mass (average = 71.1%, range from 43.7 to 100%). Solid fuel combustion-related OA components (i.e., BBOA, CCOA, and SFOA) are still considerable with in total 16.0% yearly contribution to the OA, yet mainly during winter months (21.4%). Overall, this comprehensive protocol works effectively across all sites governed by different sources and generates robust and consistent source apportionment results. Our work presents a comprehensive overview of OA sources in Europe with a unique combination of high time resolution (30-240 minutes) and long-term data coverage (9-36 months), providing essential information to improve/validate air quality, health impact, and climate models. Ključne besede: air pollution, source apportionment, organic aeroosl, black carbon Objavljeno v RUNG: 03.06.2022; Ogledov: 1962; Prenosov: 12 Celotno besedilo (4,69 MB) Gradivo ima več datotek! Več... |
30. Characterization of electrochemical processes in metal-organic batteries by X-ray Raman spectroscopyAva Rajh, Iztok Arčon, Klemen Bučar, Matjaž Žitnik, Marko Petric, Alen Vižintin, Jan Bitenc, Urban Košir, Robert Dominko, Hlynur Gretarsson, Martin Sundermann, Matjaž Kavčič, 2022, izvirni znanstveni članek Opis: X-ray Raman spectroscopy (XRS) is an emerging
spectroscopic technique that utilizes inelastic scattering of hard Xrays
to study X-ray absorption edges of low Z elements in bulk
material. It was used to identify and quantify the amount of
carbonyl bonds in a cathode sample, in order to track the redox
reaction inside metal−organic batteries during the charge/
discharge cycle. XRS was used to record the oxygen K-edge
absorption spectra of organic polymer cathodes from different
multivalent metal−organic batteries. The amount of carbonyl bond
in each sample was determined by modeling the oxygen K-edge
XRS spectra with the linear combination of two reference compounds that mimicked the fully charged and the fully discharged
phases of the battery. To interpret experimental XRS spectra, theoretical calculations of oxygen K-edge absorption spectra based on
density functional theory were performed. Overall, a good agreement between the amount of carbonyl bond present during different
stages of battery cycle, calculated from linear combination of standards, and the amount obtained from electrochemical
characterization based on measured capacity was achieved. The electrochemical mechanism in all studied batteries was confirmed to
be a reduction of double carbonyl bond and the intermediate anion was identified with the help of theoretical calculations. X-ray
Raman spectroscopy of the oxygen K-edge was shown to be a viable characterization technique for accurate tracking of the redox
reaction inside metal−organic batteries. Ključne besede: X-ray Raman spectroscopy, meta-organic batteries, oxygen K-edge XANES, electrochemical processes Objavljeno v RUNG: 24.03.2022; Ogledov: 1747; Prenosov: 20 Povezava na celotno besedilo Gradivo ima več datotek! Več... |