A5050656686- Catalytic Processes in Materials Science
- Catalysis and Oxidation Reactions
- Semiconductor materials and interfaces
- Thermal Expansion and Ionic Conductivity
- Luminescence Properties of Advanced Materials
- Ion-surface interactions and analysis
- Silicon and Solar Cell Technologies
- Catalysis and Hydrodesulfurization Studies
- Silicon Nanostructures and Photoluminescence
- Catalysts for Methane Reforming
- Catalysis for Biomass Conversion
- Solid-state spectroscopy and crystallography
- Magnetic and transport properties of perovskites and related materials
- Adsorption and Cooling Systems
- Integrated Circuits and Semiconductor Failure Analysis
- Glass properties and applications
- Chemical and Physical Properties in Aqueous Solutions
- Semiconductor materials and devices
- Advanced Materials Characterization Techniques
- Phase Change Materials Research
- Mesoporous Materials and Catalysis
- Thin-Film Transistor Technologies
- Gas Sensing Nanomaterials and Sensors
- Transition Metal Oxide Nanomaterials
- X-ray Diffraction in Crystallography
Universidade Federal de São Paulo
2015-2024
Instituto de Pesquisas Energéticas e Nucleares
2019
Departamento de Ciência e Tecnologia
2013-2018
Institute of Engineering Science
2016
Shanghai Institute for Science of Science
2016
Institute of Science and Technology
2016
Universidade Estadual de Campinas (UNICAMP)
2011-2015
Fundação de Apoio à Universidade Federal de São Paulo
2014
Universidade Federal do Rio Grande do Sul
2009-2012
Daimler (United Kingdom)
2000
A method is described for measuring optical properties and deriving chromophore concentrations from diffuse reflection measurements at the surface of a turbid medium. The uses diffusion approximation model reflectance, in combination with models absorption scattering coefficients. An fibre-based set-up, capable nine spectra 400 to 1050 nm simultaneously, used test experimentally. Results analyses phantom vivo are presented. These demonstrate that wavelength range 600 900 nm, tissue can be as...
Tutton salts have been extensively explored in recent decades due to their attractive physical and chemical properties, which make them potential candidates for thermochemical heat storage systems optical technologies. In this paper, a series of new mixed with the formula (NH4)2Mn1-xZnx(SO4)2(H2O)6 is reported. Crystals are successfully grown by solvent slow evaporation method characterized powder X-ray diffraction (PXRD) Rietveld refinement. particular, crystal structure...
In this paper, novel mixed Tutton salts with the chemical formulas K2Mn0.03Ni0.97(SO4)2(H2O)6 and K2Mn0.18Cu0.82(SO4)2(H2O)6 were synthesized studied as compounds for thermochemical heat storage potential. The crystallographic structures of single crystals determined by X-ray diffraction. Additionally, a comprehensive computational study, based on density functional theory (DFT) calculations Hirshfeld surface analysis, was performed to calculate structural, electronic, thermodynamic...
Tutton salts form an isomorphic crystallographic family that has been intensively investigated in recent decades due to their attractive thermal and optical properties. In this work, we report four mixed crystals (obtained by the slow solvent evaporation method) with novel chemical compositions based on K2V1−xM’x(SO4)2(H2O)6, where M’ represents Co, Ni, Cu, Zn, aiming at thermochemical energy storage applications. Their structural properties were correlated theoretical studies. The crystal...
Tutton salts have received considerable attention due to their potential applications in thermochemical energy storage (TCHS) systems. This technology requires high-purity materials that exhibit reversible dehydration reactions, significant variations enthalpy, and high-temperature melting points. In this study, K2Cu(SO4)2(H2O)6 salt the form of single crystals was grown using slow solvent evaporation method. Their structural, morphological, thermal characteristics are presented discussed,...
Polyblend films based on poly(3-hydroxybutirate-<italic>co</italic>-valerate) and poly(3-thiophene ethyl acetate) – PHBV/PTAcEt showed low cytotoxicity, good adhesion mammalian cell proliferation. The physical–chemical properties were explored.
Nanosized Fe-based solids exhibited favorable features for catalytic application in the solvent-free acetalization of glycerol with aldehydes biofuel additives production. The physicochemical properties by SEM–EDS, TEM, EPR, XRD, Raman, Mössbauer, and FTIR measurements XPS analysis were correlated properties. Among different approaches utilized synthesis FeCo-based solids, copolymer-assisted coprecipitation method showed conversions superior to 20%, being stable materials rather than sol–gel...
The correlation between structural and magnetic properties of $\mathrm{GdA}{\mathrm{l}}_{2}$, focusing on the role played by disorder in ordering how it influences magnetocaloric effect (MCE) are discussed. Micrometric-sized particles, consisting nanocrystallites embedded an amorphous matrix, were prepared a mechanical milling technique characterized means x-ray diffraction, scanning high-resolution transmission electron microscopy as well measurements function applied external field...
Doubly promoted MeMo/Nb2O5 catalysts, in which Me = Pt, Ni, or Co oxides were prepared for the selective catalytic reduction of NOx by CO reaction (CO-SCR). Comparable chemical, textural, and structural analyses revealed similarities between NiMo CoMo impregnated on Nb2O5, contrast to PtMo sites, not homogeneously dispersed support surface. Both acid function metal dispersion gave a synergistic effect CO-SCR at moderate temperatures. The reactivity catalysts towards chemisorption was low...