A5003362956- X-ray Spectroscopy and Fluorescence Analysis
- X-ray Diffraction in Crystallography
- Advanced Chemical Physics Studies
- Advanced Condensed Matter Physics
- Advancements in Battery Materials
- Crystallization and Solubility Studies
- Magnetic and transport properties of perovskites and related materials
- Electron and X-Ray Spectroscopy Techniques
- Air Quality and Health Impacts
- Atomic and Molecular Physics
- Thermal Expansion and Ionic Conductivity
- Atmospheric chemistry and aerosols
- Advanced Battery Materials and Technologies
- Transition Metal Oxide Nanomaterials
- Advanced NMR Techniques and Applications
- Recycling and utilization of industrial and municipal waste in materials production
- Air Quality Monitoring and Forecasting
- Electronic and Structural Properties of Oxides
- Particle accelerators and beam dynamics
- Smart Materials for Construction
- Molecular Junctions and Nanostructures
- Nuclear Physics and Applications
- Superconductivity in MgB2 and Alloys
- Ion-surface interactions and analysis
- Chemical Synthesis and Characterization
Universidad Nacional de Córdoba
2011-2023
Consejo Nacional de Investigaciones Científicas y Técnicas
2009-2023
Centro Científico Tecnológico - Córdoba
2017
National Institute of Statistics and Geography
2014-2015
This study proposes an innovative methodology that combines experimental microCT imaging with Monte Carlo irradiation simulations using the PENELOPE code aimed at enabling detailed analyses of different features involved in processes along elemental mapping, as required for X-ray fluorescence vivo samples. By examining relationship between signal-to-noise ratio (SNR) and absorbed dose (D), a mathematical approach was proposed to determine critical points where their rates change are equal....
Capacity retention is a critical property to enhance in electrochemical storage systems applied renewable energy. In lithium-sulfur (Li-S) batteries, the capacity fade resulting from shuttle effect of polysulfides major obstacle their practical application. Sepiolite, an eco-friendly earth-abundant clay with suitable surface chemistry for anchoring and retaining various molecules structures, was studied as cathode additive mitigate using experimental theoretical approaches. Electrochemical...
Li and C 1s core-electron excitation spectra of electrochemically prepared stage-II stage-I lithiated graphite were investigated by means inelastic X-ray scattering spectroscopy. The near-edge structure is discussed, the spectral features are interpreted using ab initio calculations. Our results confirm invariance threshold for transitions from core-states to empty π* states upon intercalation show this also occurs second stage intercalation. A systematic shift σ* lower energies with content...
The construction and characterization of a focusing X-ray spherical analyzer based on α-quartz 4{\bar 4}04 are presented. performance the was demonstrated by applying it to high-resolution spectroscopy study K α 1,2 emission spectrum Ni. An analytical representation physical grounds assumed model shape lines. Satellite structures assigned 3 d spectator hole transitions were resolved determined as well their relative contribution spectrum. present results 1 s −1 shake probabilities support...
In the course of an investigation to prepare hypothetic new double perovskite La(3)Co(2)VO(9) with Co(2+) and V(5+) in octahedral sites, we obtained simple LaCo(0.71(1))V(0.29(1))O(2.97(3)) as main phase. The pure compound was then synthesized by citrate decomposition method. crystal structure studied X-ray (PXRD) powder neutron diffraction (PND). Physical properties were characterized absorption spectroscopy (XAS), emission (XES) thermogravimetric analysis (TGA). Rietveld refinements...
The Li 1s core excitation spectra in LiH was studied by means of x-ray Raman scattering (XRS) spectroscopy a wide range momentum transfers q. analysis the near-edge region measured combination with q-dependent ab initio calculations XRS based on Bethe-Salpeter equation (BSE) reveals that prominent peak at onset arises from two main contributions, namely pre-edge associated to p-type exciton and strong transitions empty states near bottom conduction band, which is contrast previous...
The effects of electron–hole interaction in the dynamic structure factor and complex dielectric function valence electrons lithium hydride at finite momentum transfer q are investigated by means inelastic X‐ray scattering (IXS) spectroscopy ab initio theoretical methods. Calculations conducted within time‐dependent density functional theory (TDDFT) adiabatic local approximation (ALDA) many‐body perturbation (MBPT) based on Bethe–Salpeter equation (BSE). findings reveal that for low an...
We evaluate the use of inorganic wastes from industrial processes as additional material to cement mort ars. Wastes floor tiles polish, porcelain tile polish and peanut husk ashes were used supplementary materials for cement. The characterized by F-RX, D-RX SEM. determine pozzolanic behavior a conductimetric method in lime solution. Cement mortar probes 4x4x16 cm made at two substitution levels, 15 30% replacing rate 1:3 (cement:sand) water/cement 0,5. compression strength 28 60 days,...
Abstract Polycrystalline powders of BaLaMnSbO 6 (I), BaLaCoSbO (II), and BaLaNiSbO (III) are prepared by firing appropriate stoichiometric mixtures BaCO 3 , La 2 O MnO, Co 4 Ni(NO ) Sb in air (alumina crucible, 1.
Se presenta un estudio del espectro de excitaciones electrones coraza K Li en LiH mediante dispersióninelástica rayos x medido alta resolución. La contribución los se extrae espectromedido y su análisis realiza por medio simulaciones ab initio. estructura fina próxima al borde deabsorción el interpreta términos canales excitación habilitados, para valordel momento transferido sistema, la densidad estados proyectada simetría. Los efectos hueco decoraza generado proceso dispersión son...