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| 1 | Growth mechanism of octahedron-like BaMoO_4 microcrystals processed in microwave-hydrothermal:Experimental observations and computational modeling显示文摘Octahedron-like BaMoO4 microcrystals were synthesized by the co-precipitation method at room temperature and processed in microwave-hydrothermal at 413 K for different times (from 30 min to 5 h). These microcrystals were analyzed by X-ray diffraction (XRD),field-emission gun scanning electron microscopy (FEG-SEM) and transmission electron microscopy (TEM). XRD patterns showed that this material presents a tetragonal structure without the presence of deleterious phases. FEG-SEM and TEM micrographs revealed that the BaMoO4 microcrystals present an octahedron-like morphology with agglomerate nature and poly-disperse particle size distribution. These micrographs also indicated that the microcrystals grow along the [0 0 1] direction. The observed crystallographic planes in these structures were modeled computationally and a crystal growth model was proposed in order to explain the morphological changes as a function of processing time. | Laécio Santos Cavalcante Júlio César Sczancoski Rircado Luis Tranquilin José Arana Varela Elson Longo Marcelo Ornaghi Orlandi | 2009 | Particuology2009，7，5： | 9 |
| 2 | Characterization and electrochemical performance of CeO2 and Eu-doped CeO2 films as a manganese redox flow battery component显示文摘Hexagonal CeO_2 and Eu-doped CeO_2 nanoparticles were obtained using a facile microwave-hydro thermal method under mild conditions and their application towards manganese redox flow battery component were studied. The structural properties were studied by X-ray diffraction and indicate that samples present a fluorite structure. Raman spectroscopy shows Eu3+ ions substitute Ce^(4+) and generate oxygen vacancies. Electrochemical properties of pure and Eu-doped CeO_2 films deposited at graphite substrates investigated by cyclic voltammetry and galvanostatic charge—discharge indicate that dopant concentration affects the electrochemical properties of CeO_2. The increase in the reversibility redox of electrochemical systems observed is attributed to coexistence of Ce^(4+)/Ce^(3+) redox couple confirmed by XPS.Charge—discharge tests display coulombic and voltage efficiency values of above 80% and 90%, respectively. The obtained specific capacity for Ce_(0.99)Eu_(0.01)O_2(372.49 mAh/g) and pure oxide(334.84 mAh/g)indicates that both samples are promising for application in Mn-batteries. | Monica A.Rodrigues Ariadne C.Catto Elson Longo Edson Nossol Renata C.Lima | 2018 | Journal of Rare Earths2018，36，10： | 2 |
| 3 | Photoluminescence emissions of Ca_(1-x)WO_(4):xEu^(3+):Bridging between experiment and DFT calculations显示文摘In this work,the impact of the doping process on the photoluminescence emission of CaWO_(4) as a function of the concentration of Eu^(3+) cation(0.01 mol%,0.02 mol%,0.04 mol%,0.06 mol%,0.08 mol%,and 0.10 mol%) is discussed in detail.Ca_(1-x)WO~4:xEu^(3+) samples were successfully synthesized by a simple coprecipitation method followed by microwave irradiation.The blue shift in the absorption edge confirms the quantum confinement effect and the band gap energy covers the range from 3.91 to 4.18 eV,as the amount of Eu^(3+) cations increases.The experimental results are sustained by first-principles calculations,at the density functional theory level,to decipher the geometry and electronic properties,thereby enabling a more accurate and direct comparison between theory and experiment for the Ca_(1-x)WO_(4):xEu^(3+) structure. | Amanda Fernandes Gouveia Marcelo Assis Lara Kelly Ribeiro Aline Estefany Brandao Lima Eduardo de Oliveira Gomes Daniele Souza Yara Gobato Galvao Ieda Lucia Viana Rosa Geraldo Eduardo da Luz Jr Eva Guillamón Elson Longo Juan Andrés Miguel Angel San-Miguel | 2022 | Journal of Rare Earths2022，40，10： | 1 |
| 4 | Yellow Zn x Ni 1? x WO 4 pigments obtained using a polymeric precursor method显示文摘 | André Luiz M. de Oliveira Jailson M. Ferreira Márcia R.S. Silva Glauco S. Braga Luiz E.B. Soledade M.A. Maurera Maria Aldeiza Carlos A. Paskocimas Severino J.G. Lima Elson Longo Antonio Gouveia de Souza Iêda M. Garcia dos Santos | 2007 | Dyes and Pigments2007，，1： | 1 |
| 5 | BaMoO 4 :Tb 3+ phosphor properties: Synthesis, characterization and photophysical studies显示文摘 | Ana Paula A. Marques Fabiana V. Motta Mariana A. Cruz José A. Varela Elson Longo Ieda L.V. Rosa | 2011 | Solid State Ionics2011，，： | 1 |
| 6 | Sn O2,Zn O and related polycrystalline compound semiconductors:An overview and review on the voltage-dependent resistance(non-ohmic)feature显示文摘 | Paulo R Bueno Jose A Varela Elson Longo | 2008 | Journal of European Ceramic Society2008，28，： | 1 |
| 7 | Europium(III) Concentration Effect on the Spectroscopic and Photoluminescent Properties of BaMoO4:Eu显示文摘 | Ieda L. V. Rosa Ana Paula A. Marques Marcos T. S. Tanaka Fabiana V. Motta José A. Varela Edson R. Leite Elson Longo | 2009 | Journal of Fluorescence2009，，3： | 1 |
| 8 | Synthesis, Characterization and Photophysical Properties of Eu3+ Doped in BaMoO4显示文摘 | Ieda L. V. Rosa Ana Paula A. Marques Marcos T. S. Tanaka Dulce M. A. Melo Edson R. Leite Elson Longo José Arana Varela | 2008 | Journal of Fluorescence2008，，2： | 1 |
| 9 | Microwave-as-sisted hydrothermal synthesis of structurally and morphologically con-trolled sodium niobates by using niohic acid as a precursor显示文摘 | Amauri J Paula Maria A Zaghete Elson Longo | 2008 | Eur JInorg Chem2008，，8： | 1 |
| 10 | The role of the Eu 3+ ions in structure and photoluminescence properties of SrBi 2 Nb 2 O 9 powders显示文摘 | Diogo P. Volanti Ieda L.V. Rosa Elaine C. Paris Carlos A. Paskocimas Paulo S. Pizani José A. Varela Elson Longo | 2008 | Optical Materials2008，，： | 1 |
| 11 | Influence of Rare Earth Doping on the Structural and Catalytic Properties of Nanostrueture Tin Oxide显示文摘 | Humberto V Fajardo Elson Longo Luiz F D Prohst | 2008 | Nanoseale Res Lett2008，，3： | 1 |
| 12 | Europium(III) Concentration Effect on the Spectroscopic and Photoluminescent Properties of BaMoO4:Eu显示文摘 | Ieda L. V. Rosa Ana Paula A. Marques Marcos T. S. Tanaka Fabiana V. Motta José A. Varela Edson R. Leite Elson Longo | 2009 | Journal of Fluorescence2009，，3： | 1 |
| 13 | Poled Polyaniline Coated Piezo Composite Using Low Electric Field and Reduced Poling Time: A Functional Material显示文摘 | Gilberto de Campos FuzariJr Elen Poliani S. Arlindo Maria Aparecida Zaghete Elson Longo Walter Katsumi Sakamoto | 2014 | 材料科学与工程(中英文B版)2014，4，4： | 0 |
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