A5016049942- Advancements in Solid Oxide Fuel Cells
- Electronic and Structural Properties of Oxides
- Zeolite Catalysis and Synthesis
- Advanced Electron Microscopy Techniques and Applications
- Hydrocarbon exploration and reservoir analysis
- Mesoporous Materials and Catalysis
- Enhanced Oil Recovery Techniques
- Magnetic and transport properties of perovskites and related materials
- Advanced NMR Techniques and Applications
- Machine Learning in Materials Science
- Metabolomics and Mass Spectrometry Studies
- Optical Coatings and Gratings
- Advanced Condensed Matter Physics
- Dementia and Cognitive Impairment Research
- Semiconductor materials and devices
- Advanced X-ray Imaging Techniques
- Catalysis and Oxidation Reactions
- Innovation Policy and R&D
- Magnetic and Electromagnetic Effects
- Polyoxometalates: Synthesis and Applications
- Characterization and Applications of Magnetic Nanoparticles
- Electrohydrodynamics and Fluid Dynamics
- Thermal Expansion and Ionic Conductivity
- Neurobiology of Language and Bilingualism
- Memory and Neural Mechanisms
Utrecht University
2019-2023
University of Palermo
2015-2020
University of Catania
2017
Temple University
2006
Ni contamination from crude oil in the fluid catalytic cracking (FCC) process is one of primary sources catalyst deactivation, thereby promoting dehydrogenation-hydrogenation and speeding up coke growth. Herein, single-particle X-ray fluorescence, diffraction absorption (μXRF-μXRD-μXAS) tomography used combination with confocal fluorescence microscopy (CFM) after thiophene staining to spatially resolve interaction components study zeolite degradation, including processes dealumination...
The chemical compatibility between electrolytes and electrodes is an extremely important aspect governing the overall impedance of solid-oxide cells. Because these devices work at elevated temperatures, they are especially prone to cation interdiffusion cell components, possibly resulting in secondary insulating phases. In this work, we applied X-ray microspectroscopy study interface a samarium-doped ceria (SDC) electrolyte lanthanum ferrite cathodes (La0.4Sr0.6Fe0.8Cu0.2O3 (LSFCu);...
ADVERTISEMENT RETURN TO ISSUEPREVCommunicationNEXTElectrode–Electrolyte Compatibility in Solid-Oxide Fuel Cells: Investigation of the LSM–LNC Interface with X-ray MicrospectroscopyFrancesco Giannici*†, Giovanna Canu‡, Marianna Gambino†, Alessandro Longo§, Murielle Salomé⊥, Massimo Viviani‡, and Antonino Martorana†View Author Information† Dipartimento di Fisica e Chimica, Università Palermo, Viale delle Scienze, I-90128 Italy‡ Istituto per l'Energetica le Interfasi (CNR-IENI), Consiglio...
Reports of semantic dementia patients have shown more accurate identification and use for personal objects than unfamiliar analogs the same (e.g., comb versus experimenter's comb) [Bozeat, S., Lambon Ralph, M. A., Patterson, K., & Hodges, J. R. (2002). The influence familiarity context on object in dementia. Neurocase, 8, 127-134; Snowden, Griffiths, H., Neary, D. (1994). Semantic dementia: Autobiographical contribution to preservation meaning. Cognitive Neuropsychology, 11, 265-288]....
Bi2O3 in its fluorite-like form can be obtained either at 730–824 °C, showing the highest oxide-ion conduction known so far, or by doping. We present a comprehensive appraisal of local atomic structure Ta-doped investigating X-ray absorption spectroscopy aggregation motifs Ta5+ and interaction between dopants oxygen vacancies. Using periodic density functional theory simulations, we show that connection Ta4O18 aggregates is energetically favorable. find coordination Bi3+ electronic...
Abstract Introducing hierarchical porosity to zeolites is vital for providing molecular access microporous domains. Yet, the dynamics of meso‐ and macropore formation has remained elusive pore space ill‐characterized by a lack (in situ) microscopic tools sensitive nanoporosity. Here, we probe within zeolite ZSM‐5 crystal in real‐time situ fluorescence microscopy during desilication. In addition, introduce small‐angle X‐ray scattering as novel characterization tool map intracrystal...
Abstract Ni contamination from crude oil in the fluid catalytic cracking (FCC) process is one of primary sources catalyst deactivation, thereby promoting dehydrogenation–hydrogenation and speeding up coke growth. Herein, single‐particle X‐ray fluorescence, diffraction absorption (μXRF‐μXRD‐μXAS) tomography used combination with confocal fluorescence microscopy (CFM) after thiophene staining to spatially resolve interaction components study zeolite degradation, including processes...
A combined experimental and theoretical study of Mg-doped LaGaO3 electrolyte was carried out, with the aim to unveil interaction between oxygen vacancy (Vo) perovskite B site cations. (LG) LaGa0.875Mg0.125O2.938 (LGM0125) samples were comprehensively characterized by X-ray absorption spectroscopy (XAS) diffraction, in order investigate short- long-range structures both undoped materials. XAS analysis evidenced a preferential Ga-Vo LGM0125, confirmed periodic hybrid density functional theory...
Artificially mimicking aging of an equilibrium catalyst (ECAT) is effective strategy to model the deactivation a Fluid Catalytic Cracking (FCC) during refinery operations. Herein, we have used correlative microscopy approach unravel inter-particle spatial heterogeneities in artificially deactivated catalysts (DCATs) and compared them with real-life ECAT containing on average 3800 ppm Ni 2300 V, set density separated fractions. By doing so could rationalize effect metal contaminants acidity...
To date, compound refractive X-ray lenses made out of Beryllium (Be CRLs) have been seldom applied for full-field microscopy with high spatial resolution, which was probably due to residual aberrations these optics. However, in combination the recent development made-to-measure phase plates, typical spherical aberration beryllium can now be completely removed. In this way, distortion-free images a sample are obtained, is especially important tomographic applications. First imaging...
Abstract Introducing hierarchical porosity to zeolites is vital for providing molecular access microporous domains. Yet, the dynamics of meso‐ and macropore formation has remained elusive pore space ill‐characterized by a lack (in situ) microscopic tools sensitive nanoporosity. Here, we probe within zeolite ZSM‐5 crystal in real‐time situ fluorescence microscopy during desilication. In addition, introduce small‐angle X‐ray scattering as novel characterization tool map intracrystal...
Zeolith-Katalysatoren zeigen oft stark verwachsene Strukturen, die auf der Mikroskala als “Blume” oder “Sonne” erscheinen. Mithilfe von Röntgenkleinwinkelstreuung und In-situ-Fluoreszenzmikroskopie Bert M. Weckhuysen et al. in ihrer Zuschrift S. 13922, dass sich Porosität nur bestimmten Segmenten Zeolithe ausbildet, was zu starken lokalen Unterschieden Leistung im Deaktivierungsverhalten führen kann. Die gelbe Sonne erinnert an das Symbol Universität Utrecht, Arbeit durchgeführt wurde.