CV Lattes
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Secretaria de Desenvolvimento Econômico (São Paulo - Estado). Instituto de Pesquisas Energéticas e Nucleares (IPEN) (Institutional affiliation from the last research proposal) Birthplace: Brazil
Bachelor's degree in Physics, University of S. Paulo - USP, Brazil (1968). M.Sc. degree (1970) and Doctorate degree (1976) at USP. Doctorate research work at the National Research Council, Ottawa, Canada (1970-1973). Post-doc research work at the Max Planck Institute for Solid State Research, Stuttgart, Germany (1983), and Institute National Polytechnic of Grenoble, France (1990). Research work on Science and Technology of Materials in electroceramics. Basic research on solid electrolytes, ionic-electronic mixed conductors, electrochemical impedance spectroscopy of solids, sensors for gaseous species, solid oxide fuel cells, electric field-assisted synthesis/sintering, flash sintering; composite ceramic membranes for gas permeation.. (Source: Lattes Curriculum)
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The Project refers to the acquisition of a multi-usuary equipment for sintering functional ceramic materials by the spark plasma sintering technique. That technique allows for sintering/densifying ceramic pieces by fast heating under pressure. The main Advantage of that sintering technique is the possibility of obtaining dense samples without grain growth that usually occurs in convention…
As a part of the New Energies Research Center (NERC), a joint initiative from FAPESP and Shell, this Research Division 3 - Methane to Products (RD3) is built to grow as a world-class scientific center for research on advanced technologies for methane conversion to high-value products. In this context, RD3 addresses potentially disruptive technologies to tackle methane conversion beyond tr…
An experimental detection of the luminescence occurring during electric field-assisted (flash) pressureless sintering of zirconia-based solid electrolytes will be carried out. Flash sintering consists on promoting one or more electric current pulses through a polycrystalline ceramic pellet under DC or AC electric fields during heating up (dynamic process) or at a fixed temperature (isothe…
Project 1CO2 selective separation membranes based on composites including oxide-ion conducting ceramics (SDC - samaria-doped ceria) and carbonate-ion conducting phases will be developed. Fine-tuned compositions and microstructures should provide the optimization of the rate determining oxide-ion conductivity. Subsequently, new generation membranes including mixed oxide-ion/electronic cond…
The analyses of ceramic interfaces of oxides will be performed by the electrochemical impedance spectroscopy technique over wide frequency (5 Hz - 110 MHz), temperature (78 K - 1600 K), and partial pressure of oxygen (10 ppm - 1 atm) ranges. Several ceramic oxides, synthesized through chemical techniques, to be sintered under different experimental procedures, have been chosen due to thei…
(Only some records are available in English at this moment)
The properties of ceramic materials are strongly dependent on the microstructure and consequently on the sintering process. In this project, sintering of zirconia- and ceria-based solid electrolytes (ZrO2:8 mol% Y2O3 cubic zirconia - 8YSZ and CeO2:20 mol% Sm2O3 cubic ceria - 20SDC), important materials for research and application in devices, will be studied by a novel sintering process, …
The purpose of this project is the synthesis and characterization of proton conductors such as cesium hydrogen sutfate (CsHSO4) and hydrogen titanate (H2Ti3O7.nH2O), aiming at the preparation of Nafion based composite electrolytes for direct ethanol fuel cell application (DEFC) at intermediate temperature (T > 130 ºC). The development of new proton conductors is considered a crucial st…
The BiMeVOX materials are known to have important electrical properties that make them very attractive for many applications. However, they are marked by a lack of understanding of structure-microstructure-property relations, which is yet essential in order to design better materials. This project can be broken down into two main parts that are equally important for the understanding of t…
(Only some records are available in English at this moment)
Yttrium-doped barium zirconate (BZY) polycrystalline ceramics with perovskite structure have technological importance as solid electrolytes in solid oxide fuel cells operating at intermediate temperatures (500-700 C). The issues related to both nanoparticle agglomeration and consequent low final densification are yet unsolved problems. Our idea to solve these problems is to carry out a de…
| 2 / 2 | Ongoing grants |
| 21 / 7 | Completed research grants |
| 19 / 4 | Completed scholarships in Brazil |
| 1 / 1 | Completed scholarships abroad |
| 44 / 15 | All research grants and scholarships |
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