Search Results - "Rocha, L. S. R."

Synthesis and defect characterization of hybrid ceria nanostructures as a possible novel therapeutic material towards COVID-19 mitigation by Rocha, L. S. R., Simões, A. Z., Macchi, C., Somoza, A., Giulietti, G., Ponce, M. A., Longo, E.

“…This study reports the synthesis of hybrid nanostructures composed of cerium dioxide and microcrystalline cellulose prepared by the microwave-assisted…”
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Dielectric properties of bismuth niobate films using LaNiO3 bottom electrode by Goncalves, L. F., Rocha, L. S. R., Silva, C. C., Cortés, J. A., Ramirez, M. A., Simões, A. Z.

“…Bi 3 NbO 7 (BNO) thin films were deposited on Pt/TiO 2 /SiO 2 /Si (100) and LaNiO 3 bottom electrode substrates at room temperature from the polymeric…”
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Manganese Defective Clustering: Influence on the Spectroscopic Features of Ceria-Based Nanomaterials by Amaral, D. C., Rocha, L. S. R., Granone, L. I., Lage, M. M., Churio, M. S., Sanchez, M. D., Longo, E., Nascimento, H. M. S., Assis, M., Moura, F., Ponce, M. A.

“…The influence of manganese modification on the spectroscopic features of manganese-doped CeO2 systems synthesized by the microwave-assisted hydrothermal route…”
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Magnetocoupling and domain structure of BiFeO3/ LaFeO3 heterostructures deposited on LaSrCoO3/Pt/TiO2/SiO2/Si (100) substrates by the soft chemical method by Deus, R. C., Gonçalves, L. F., Cavalcanti, C. C., Rocha, L. S. R., Longo, E., Simões, A. Z.

“…BiFeO 3 (BFO) and LaFeO 3 (LFO) heterostructures were obtained at room temperature on Pt/TiO 2 /SiO 2 /Si (100) substrates by chemical solution deposition at a…”
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Magnetoelectricity at room temperature in the LaFeO3/BiFeO3 heterostructures by Ranieri, M. G., Amoresi, R. A. C., Ramirez, M. A., Cortes, J. A., Rocha, L. S. R., Silva, C. C., Simões, A. Z.

“…Thin films of BiFeO 3 (BFO), LaFeO 3 (LFO), and LFO/BFO heterostructures were successfully obtained on Pt/TiO 2 /SiO 2 /Si(100) substrates by chemical solution…”
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Tuning structural, optical, and gas sensing properties of ceria-based materials by rare-earth doping by Ortega, P.P., Hangai, B., Moreno, H., Rocha, L.S.R., Ramírez, M.A., Ponce, M.A., Longo, E., Simões, A.Z.

“…•Rare-earth doped ceria nanoparticles were synthesized using the MAH method.•Different structural modifications were obtained by doping with La and Eu.•Doping…”
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Towards carbon monoxide sensors based on europium doped cerium dioxide by Ortega, P.P., Rocha, L.S.R., Cortés, J.A., Ramirez, M.A., Buono, C., Ponce, M.A., Simões, A.Z.

“…•Thick films were fabricated from europium doped and pure CeO2 nanoparticles.•The introduction of europium in the CeO2 lattice does not form secondary…”
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Synergistic piezocatalytic activity of hybrid BZT/Graphene/PVDF composites by Giulietti, G., Simões, A.Z., Ponce, M.A., Moura, F., Nascimento, H.M.S., dell'Erba, I.E., Rocha, L.S.R., Longo, E., Assis, M.

“…•BZT/GNP/PVDF composites show effective RhB discoloration.•Delicate balance of GNP and BZT influences PVDF film morphology.•Synergistic effects boost…”
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Novel ozone gas sensor based on ZnO nanostructures grown by the microwave-assisted hydrothermal route by Rocha, L.S.R., Foschini, C.R., Silva, C.C., Longo, E., Simões, A.Z.

“…Good quality ZnO nanostructures were obtained by the microwave-assisted hydrothermal synthesis, at low reaction temperatures, using zinc acetate as the…”
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Calcium doped BiFeO3 films: Rietveld analysis and piezoelectric properties by Goncalves, L. F., Rocha, L. S. R., Longo, E., Simões, A. Z.

“…Pure and calcium modified Ca x Bi (1−x) FeO 3 (x = 0.0, 0.1, 0.2, 0.30) thin films were fabricated on Pt(111)/Ti/SiO 2 /Si substrates by the soft chemical…”
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Changes in the electrical properties of CeO2 through alterations in defects caused by Mn doping by Amaral, D.C., Assis, M., Rocha, L.S.R., Longo, E., Aldao, C.M., Desimone, P.M., Teodoro, M.D., Macchi, C., Nascimento, H.M.S., Somoza, A., Ponce, M.A., Moura, F.

“…Mn-doped CeO2 nanoparticles were synthesized using a microwave-assisted hydrothermal method and analyzed through photoluminescence spectroscopy, positron…”
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Photoluminescence properties of cerium oxide nanoparticles as a function of lanthanum content by Deus, R.C., Cortés, J.A., Ramirez, M.A., Ponce, M.A., Andres, J., Rocha, L.S.R., Longo, E., Simões, A.Z.

“…[Display omitted] •CeO2 nanoparticles were obtained by microwave-hydrothermal method.•Rietveld refinement reveals a cubic structure.•KOH mineralizer agent…”
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Novel gas sensor with dual response under CO(g) exposure: Optical and electrical stimuli by Rocha, L.S.R., Cilense, M., Ponce, M.A., Aldao, C.M., Oliveira, L.L., Longo, E., Simoes, A.Z.

“…In this work, a lanthanum (La) doped ceria (CeO2) film, which depicted a dual gas sensing response (electric and optical) for CO(g) detection, was obtained by…”
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Electrical behavior of cerium dioxide films exposed to different gases atmospheres by Deus, R.C., Amoresi, R.A.C., Desimone, P.M., Schipani, F., Rocha, L.S.R., Ponce, M.A., Simoes, A.Z., Longo, E.

“…Here we present an easy-reproducible microwave-assisted hydrothermal route for preparing pure nanocrystalline CeO2 films. The produced materials were…”
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Multiferroic behavior of heterostructures composed of lanthanum and bismuth ferrite by Ortega, P.P., Rocha, L.S.R., Silva, C.C., Cilense, M., Amoresi, R.A.C., Longo, E., Simões, A.Z.

“…Heterostructured thin films of lanthanum ferrite (LFO) and bismuth ferrite (BFO) with different thicknesses were successfully obtained by a soft chemical…”
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Photoluminescence emission in zirconium-doped calcium copper titanate powders by Moura, F., Cabral, A.C., Rocha, L.S.R., Aguiar, E.C., Simões, A.Z., Longo, E.

“…Intense photoluminescence (PL) emission was observed in Zr-doped calcium copper titanate powders. The compounds were synthesized by a soft chemical method and…”
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A study approach on ferroelectric domains in BaTiO3 by Rocha, LSR, Cavalcanti, C S, Amoresi, RAC, Stojanovic, B D, Borsari, E, Zaghete, MA, Simoes, A Z

“…Atomic Force Acoustic Microscopy (AFAM) and Piezoresponse Force Microscopy (PFM) were used to study local elastic and electromechanical response in BaTiO3…”
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High-performance CeO2:Co nanostructures for the elimination of accidental poisoning caused by CO intoxication by Carvalho, J.C.L., Rocha, L.S.R., Renzetti, R.A., Procopio, A.M.S., Mastelaro, V.R., Simões, A.Z., Ponce, M.A., Macchi, C., Somoza, A., Aldao, C.M., Longo, E., Moura, F.

“…Owing to the global upward trend of accidental carbon monoxide (CO) poisoning in the past 30 years, this work aimed to develop Cobalt-doped CeO2 particles by…”
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Photoluminescence emission at room temperature in zinc oxide nano-columns by Rocha, L.S.R., Deus, R.C., Foschini, C.R., Moura, F., Garcia, F. Gonzalez, Simões, A.Z.

“…•ZnO nanoparticles were obtained by microwave-hydrothermal method.•X-ray diffraction reveals a hexagonal structure.•Photoluminescence emission evidenced two…”
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Electrical properties of calcium doped BiFeO3 films on LaNiO3 coated Pt substrates by Lucas Fabricio Goncalves, Leandro Silva Rosa Rocha, Bruno Hangai, Pedro Paulo Silva Ortega, Elson Longo, Alexandre Z. Simões

“…Pure and calcium-modified (CaxBi1-xFeO3, x = 0.0, 0.1, 0.2, 0.30) thin films were fabricated on Pt(111)/Ti/SiO2/Si substrates by the soft chemical method using…”
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