Visualitza QFA_Articles per autoria "510f8ead-be04-4167-a218-a868273aac1f"

Ara mostrant els elements 1-5 d 5

    • openAccess   Disclosing the nature of vacancy defects in α-Ag2WO4 

      Assis, Marcelo de; Castro, M. S.; Aldao, C. M.; Buono, C.; Ortega, P. P.; Teodoro, M. D.; Andres, Juan; Gouveia, Amanda; Simões, Alexandre; Longo, Elson; Macchi, C. E.; Somoza, Alberto; Moura, F.; Ponce, Miguel Adolfo Elsevier (2023-08)
      Defects at semiconductors with electron acceptor and donor sites govern the electronic and optoelectronic applications due to their unique electronic properties. This work provides deep insight into the nature of defects and ...

    • closedAccess   Photoluminescence properties of cerium oxide nanoparticles as a function of lanthanum content 

      Deus, R.C.; Cortés, J.A.; Ramirez, M.A.; Ponce, Miguel Adolfo; Andres, Juan; Rocha, L.S.R.; Longo, Elson; Simões, Alexandre Elsevier (2015)
      The structural and photoluminescent properties at room temperature of CeO2 and La-doped CeO2 particles were undertaken. The obtained particles were synthesized by a microwave-assisted hydrothermal method (MAH) under different ...

    • closedAccess   Pure and Ni2O3-decorated CeO2 nanoparticles applied as CO gas sensor: Experimental and theoretical insights 

      Amoresi, Rafael; Oliveira, Regiane; Cichetto Junior, Leonélio; Desimone, Paula Mariela; Aldao, Celso Manuel; Ponce, Miguel Adolfo; Gracia, Lourdes; Sambrano, Julio; Longo, Elson; Andres, Juan; Simões, Alexandre Elsevier (2022-01-29)
      In the present work, the structural, morphological and electrical properties of CeO2 nanoparticles with spherical and rod-like morphologies and rods decorated with Ni2O3 were investigated. Morphological, structural and ...

    • openAccess   Revealing the Nature of Defects in α-Ag2WO4 by Positron Annihilation Lifetime Spectroscopy: A Joint Experimental and Theoretical Study 

      Assis, Marcelo de; Ponce, Miguel Adolfo; Gouveia, Amanda; de Souza, Daniele; Costa, João Paulo; Teodoro , Vinícius; Galvão Gobato, Yara; Andres, Juan; Macchi, Carlos; Somoza, Alberto; Longo, Elson American Chemical Society (2021)
      Electron–matter coupling is a fascinating way to tune and modify the properties of materials. In this work, we present a study on the formation and nature of vacancy-like defects in α-Ag2WO4 samples synthesized in a water ...

    • openAccess   Towards an efficient selective oxidation of sulfides to sulfones by NiWO4 and α-Ag2WO4 

      Assis, Marcelo de; Gouveia, Amanda; Ribeiro, Lara Kelly; Ponce, Miguel Adolfo; Churio, Maria Sandra; Oliveira, Osvaldo N.; Mascaro, Lucia; Longo, Elson; Llusar, Rosa; Guillamón, Eva; Andres, Juan Elsevier (2023-02-25)
      Chemoselective oxidation of sulfides to sulfones under mild conditions is relevant for industry, but challenging owing to the need to establish catalysis mechanisms and optimize several experimental parameters. Herein, we ...