1. Performance of copper - based catalysts for electrochemical CO2 reductionStefan Popović, 2023, doctoral dissertation Abstract: The industrial era has brought a never-ending problem to
civilization through the emission of greenhouse gases (GHGs)
while extracting energy from fossil fuels for a variety of processes. Among different GHGs, carbon dioxide (CO2) stood out as one of the most impactful and dangerous gases causing climatic disasters around the globe. However, CO2 as the abundant C1 building block, through the conversion pathways
gives a plethora of opportunities to convert it into a wide range of commercial products and applications. The holistic approach among different conversion pathways is the electrochemical reduction of CO2 (eCO2R), ideally powered by renewable energy from intermittent sources such as wind and solar power. A silver bullet of the process is to find a catalyst that is active, selective, and stable. Copper has been recognized as the
only monometallic catalyst that can produce products that require a transfer of >2e-. However, in recent years the increased awareness of its reconstructive nature under eCO2RR-relevant conditions multiplied the complexity of the parameters that can
influence the reaction. Therefore overall thesis's approach to studying copper-based catalysts is based to understand the reconstructive aspect and the stability of Cu-based
catalysts, and deeply comprehend their relationship with the activity/selectivity. Chapter 1 gives an introduction to the recent activities in the field of carbon capture, utilization and storage (CCSU) technologies, the fundaments of CO2 as a molecule,
and its pathway toward state-of-the-art discoveries in the eCO2
R reaction. Afterward, the thesis focuses on the main experimental technique to produce nanostructured copper-based materials, namely, electrodeposition (Chapter 2). A big part of the thesis focuses on the establishment of an electrochemical setup for activity/selectivity measu
rement. The setup consists of two parts: 1) construction of the custom-made gas-tight sandwich-type electrochemical cell and 2) optimization of the online gas and ex-situ liquid product detection. After the establishment of the reliable electrochemical setup, Chapter 3 focuses on electrochemically
-grown Cu2O nanocubes catalyst and how the reconstructive nature induced by a particular electrochemical protocol influences on boost in activity/selectivity for methane production. The last part of the thesis consists contribution to the fundamental understanding of the degradation mechanisms and stability of Cu
-based catalysts under eCO2RR conditions. A unique ex-situ approach, mirrored in identical location scanning electron microscopy (IL-SEM) method is employed to study electrodeposited spherical half-micron particles on the glassy carbon rotating disk electrode (GC-RDE). With this evidence, we could interpret the observed structural changes as two separate electrochemical processes occurring one after another, namely copper dissolution from pre-oxidized native nanoparticles and subsequent (electro
-) redeposition of the dissolved copper species in a form of n
ew smaller Cu fragments. Keywords: electrocatalysts, electrochemical CO2 reduction, copper nanoparticles, IL-SEM, stability, degradation Published in RUNG: 14.11.2023; Views: 2090; Downloads: 24 Full text (5,55 MB) |
2. Database of the Western South Slavic Verb HyperVerb -- DerivationStefan Milosavljević, Petra Mišmaš, Marko Simonović, Boban Arsenijević, Katarina Gomboc Čeh, Franc Marušič, Jelena Simić, Rok Žaucer, complete scientific database of research data Keywords: Slavic, verb, Slovenian, BCMS, Bosnian, Croatian, Serbian, verbal morphology, derivation, prefix, sufix Published in RUNG: 27.07.2023; Views: 2151; Downloads: 19 Full text (8,08 KB) This document has many files! More... |
3. Protein quality control for improved data reproducibility and reliabilityKim Remans, Ario De Marco, Nick Berrow, Mario Lebendiker, Maria Garcia-Alai, Stefan Knauer, Andre Matagne, Anne Perret, Stephan Uebel, Bertrand Raynal, 2022, published scientific conference contribution abstract Keywords: protein quality, evaluation assays, biophysical methods Published in RUNG: 13.04.2023; Views: 1526; Downloads: 0 This document has many files! More... |
4. Explaining the quantitative distribution of deverbal -lac/-lec nominalizations in Western South SlavicBoban Arsenijević, Katarina Gomboc Čeh, Franc Marušič, Petra Mišmaš, Stefan Milosavljević, Rok Žaucer, 2022, published scientific conference contribution abstract Keywords: Slavic, BCS, Slovenian, nominalizations, imperfectives, perfectives, aspect, verb, morphology Published in RUNG: 10.10.2022; Views: 1759; Downloads: 0 This document has many files! More... |
5. Licensing deverbal -lac/-lec nominalizations in Western South SlavicBoban Arsenijević, Katarina Gomboc Čeh, Franc Marušič, Stefan Milosavljević, Petra Mišmaš, Marko Simonović, 2022, published scientific conference contribution abstract Keywords: Bosnian/Croatian/Serbian, Slovenian, Slavic, nominalizations, participles, imperfective verbs, perfective verbs Published in RUNG: 26.09.2022; Views: 1846; Downloads: 0 This document has many files! More... |
6. Database of the Western South Slavic verb HyperVerb 1.0Franc Marušič, Rok Žaucer, Petra Mišmaš, Boban Arsenijević, Marko Simonović, Stefan Milosavljević, Katarina Gomboc Čeh, Jelena Simić, 2022, complete scientific database of research data Abstract: Slavic, verb, Keywords: Slavic, verb, inflection, theme vowel, Slovenian, BCMS, Bosnian, Croatian, Serbian, verbal morphology, verbal stress pattern, verbal inflection Published in RUNG: 12.09.2022; Views: 2445; Downloads: 52 Link to full text This document has many files! More... |
7. REGIONAL POTENTIAL FOR SUSTAINABLE ENERGY SUPPLY IN CROATIA : MASTER'S THESISStefan Subotić, master's thesis Abstract: The master thesis aims to find the optimal model for a new energy company that considers regional potential, supports sustainable development, and fits the circular economy concept in a region. The idea of sustainable development is crucial today when we have more city areas and less countryside around the globe. Increased global population, industrial trends and modern living style are some of the reasons why the burden on our environment is more significant than ever in the history of humanity. The idea is to launch the new company in the Croatian region Osijek-Baranja, which is less developed and not attractive to tourists. A newly established company will produce electric energy from renewable energy sources. The multi-criterion decision support methods were used to determine the optimal energy source between wind, biogas and sun. Results show that the biogas has the most significant sustainable potential in chosen boundary conditions. The cash flows and other economic indicators are shown for a farm of 500 milking cows in the chosen region as a source of biogas. The risk assessments method estimated the boundaries of the company success and adaptability to possible changes. One of the critical aspects of the project is the company's organizational structure, where a vertical hierarchy with a flexible and fluid, circular organization model with network culture was proposed. Clear communication about the project will help establish trust with the local community. Based on the biogas plant, the proposed company reduces biodegradable waste in the green energy production process. It is shown quantitatively that besides being economically sustainable, it also suits the region's potential, supports energy self-supply, and involves local people - it aims to the long-term sustainable growth of the region, rather than short-term capital growth. Keywords: Circular economy, sustainable development, regional potential, renewable energy sources, company structure, communication Published in RUNG: 18.02.2022; Views: 3401; Downloads: 75 Full text (2,75 MB) |
8. Pitch processing in L1 and L2: German and ItalianAlessandra Zappoli, Francesco Vespignani, Stefan Bauman, Martine Grice, Petra Schumacher, invited lecture at foreign university Keywords: Pitch processing, German, Italian, Deaccentuation, ERP, EEG, N400, Late Positivity, Given Information Published in RUNG: 14.12.2021; Views: 2190; Downloads: 0 This document has many files! More... |
9. Learning a new intonation pattern also means learning how to use itAlessandra Zappoli, Francesco Vespignani, Stefan Bauman, Martine Grice, Petra Schumacher, unpublished conference contribution Keywords: Intonation, perception, EEG, N400, Late Positivity, L2 acquisition prosody, German Published in RUNG: 14.12.2021; Views: 2391; Downloads: 0 This document has many files! More... |
10. The processing of German pitch accents by Italian learners of GermanAlessandra Zappoli, Francesco Vespignani, Stefan Bauman, Martine Grice, Petra Schumacher, unpublished conference contribution Keywords: German, Pitch Accents, EEG, N400, Late Positivity, Deaccentuation, Contrastive Focus, Information Status, L2 Acquisition, Italian Published in RUNG: 14.12.2021; Views: 2210; Downloads: 0 This document has many files! More... |