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  1. No Access

    Article

    Simultaneous La3+ and Cu2+ cations insertion in the ZnO crystal structure and its effect on the structural, optical, and photocatalytic properties

    Herin, we present a study on the influence of simultaneous La3+ and Cu2+ cations insertion on the structural, optical properties, and methylene blue pollutant degradation of ZnO synthesized by co-precipitation ro...

    A. G. Jerônimo, R. Barbosa, L. Neves, Pollyana Trigueiro… in Journal of Materials Science (2024)

  2. No Access

    Article

    Improving electrochemical stability and electromechanical efficiency of ipmcs: tuning ionic liquid concentration

    In the field of soft actuators, Ionomeric Polymer Metal Composites (IPMC)-like devices are a trend, exhibiting large displacement with low applied voltage. Its working mechanism is related to solvated electrol...

    K. A. Tozzi, R. Gonçalves, R. Barbosa… in Journal of Applied Electrochemistry (2023)

  3. No Access

    Article

    The Most Important Parameters to Differentiate Tempranillo and Tempranillo Blanco Grapes and Wines through Machine Learning

    A study in order to differentiate Tempranillo and Tempranillo blanco grapes and wines from A.O.C. Rioja (Spain) has been carried out. The three most important groups of chemical compounds in grapes and wines w...

    T. Garde-Cerdán, N. L. da Costa, P. Rubio-Bretón, R. Barbosa… in Food Analytical Methods (2021)

  4. No Access

    Chapter and Conference Paper

    Through-Thickness Homogenization in Thin Slab Direct Rolling of Nb Microalloyed Steels

    Thick gauge strip production using thin slab casting and direct rolling (TSDR) technologies show important challenges due to the lack of high total reduction from slab to final strip. In these cases, a correct...

    B. Pereda, P. Uranga, B. López… in HSLA Steels 2015, Microalloying 2015 & Off… (2016)

  5. No Access

    Chapter and Conference Paper

    Modelling Microstructure Evolution during Hot Rolling of HSLA Steels in a Steckel Mill

    Microstructure evolution during hot rolling depends on several processing variables. These are the furnace soaking temperature and, for each pass in the schedule, the temperatures, the strains, the strain rate...

    W. Almeida, H. Rodrigues, M. Rebellato… in HSLA Steels 2015, Microalloying 2015 & Off… (2016)

  6. No Access

    Article

    Enhanced performance of direct ethanol fuel cell using Pt/MWCNTs as anodic electrocatalyst

    Platinum nanoparticles with a size distribution ranging from 3 to 6 nm were synthesized at room temperature by chemical reduction of platinum chloride, using NaBH4 as the reduction reagent and poly(N-vinylpyrroli...

    L. C. Ordóñez, B. Escobar, R. Barbosa… in Journal of Applied Electrochemistry (2015)

  7. No Access

    Article

    Is carbon dioxide laser vaporization a valuable tool in the management of oral leukoplakia? A survey at an oncology hospital

    A. Pedrosa, A. Santos, M. Ferreira, C. Araújo, R. Barbosa… in Lasers in Medical Science (2015)

  8. No Access

    Article

    Synthesis and x-ray diffraction characterization of nanocrystalline ZnO obtained by Pechini method

    Nanocrystalline zinc oxide powders were successfully prepared by Pechini method. The polymeric precursors were prepared using zinc acetate and a mixed solution of citric acid and ethylene glycol as a chelating...

    B. S. Barros, R. Barbosa, N. R. dos Santos, T. S. Barros… in Inorganic Materials (2006)