A5029108239- Crystallization and Solubility Studies
- Electrochemical sensors and biosensors
- X-ray Diffraction in Crystallography
- Metal complexes synthesis and properties
- Linguistics and Education Research
- Analytical Chemistry and Sensors
- Minerals Flotation and Separation Techniques
- Cultural, Media, and Literary Studies
- Literature, Culture, and Criticism
- Brazilian History and Foreign Policy
- Electrocatalysts for Energy Conversion
- Enzyme Catalysis and Immobilization
- Fuel Cells and Related Materials
- Brazilian cultural history and politics
- Sensor Technology and Measurement Systems
- Carcinogens and Genotoxicity Assessment
- Recycling and Waste Management Techniques
- Occupational and environmental lung diseases
- Catalytic Processes in Materials Science
- Sociology and Education in Brazil
- Hydrogen embrittlement and corrosion behaviors in metals
- Dye analysis and toxicity
- Silicon Effects in Agriculture
- Iron oxide chemistry and applications
- Advancements in Solid Oxide Fuel Cells
Universidade de São Paulo
2020
Universidade Federal do Rio de Janeiro
2007-2018
Hospital Universitário da Universidade de São Paulo
2018
In this paper the current status of fuel cells is described with particular emphasis on high (T > 800 o C) and intermediate < temperature solid oxide cells.Also importance cell technology shown.Reviewed are fundamental features, basic principles, types cell, fabrication methods, configurations development components (cathodes, anodes, electrolytes, interconnect) materials.
Abstract In this work, an electroenzymatic methodology based on two coupled enzymatic activities (glycerokinase and glycerol‐3‐phosphate oxidase) was developed using oxygen Clark‐type electrode for the determination of free total glycerol in biodiesel samples. The conversion consumes oxygen, which is measured amperometrically a correlated with concentration sample. method proposed showed good linear correlation coefficient ( R =0.9990) response range 6.25×10 −5 to −4 % (w/v) limits detection...
ENZYMATIC METHOD WITH COLORIMETRIC DETECTION.A method based on enzymatic activities was developed using three enzymes (glycerokinase, glycerol-3-phosphate oxidase and peroxidase) colorimetric detection for the determination of glycerol in biodiesel.The conversion produces H 2 O that is eliminated by action peroxidase, an oxygen acceptor 4-aminoantipirine, producing water a colored compound, which analyzed.This showed good linear correlation coefficient (r = 0.9937) concentration range 4.95 x...
Este trabalho descreve as etapas de caracterização e purificação quartzo para obtenção um silício grau metalúrgico (SiGM) com baixo nível impurezas. A amostra quartzo, após britagem, calcinação seguida quenching moagem autógena apresentou teor SiO2 99,5%, isto é, aumento aproximadamente 2% em relação a original. análise granulométrica indicou que fração abaixo 37 µm, correspondente apenas 2,06% da total, apresenta alto impurezas, podendo ser removida, facilitando assim os ensaios...
Reflexões sobre o romance de 30 baseadas em textos diversos Antonio Candido a literatura praticada no decênio e das circunstâncias políticas, sociais culturais que tornou uma expressão referencial da cultura brasileira
Neste trabalho, as etapas de beneficiamento e caracterização do quartzo Tanhaçu/BA foram realizadas com o propósito utilizá-lo como matéria-prima para a obtenção um silício grau metalúrgico (SiGM) baixo nível impurezas. A amostra quartzo, após britagem, calcinação seguida quenching moagem autógena por 2 h resultou num produto elevado teor SiO2 (> 99%), isto é, aumento aproximadamente 2% em relação `a original uma considerável diminuição nos teores das principais impurezas, boro fósforo,...
In the crystal structure of ruthenium(III) complex, trans -[Ru III (dcbpy) 2 Cl ]ClO 4 (dcbpy = 2,2′-bipyridine-4,4′-dicarboxylic acid, C 12 H 8 N O ), Ru atom lies on an inversion centre, showing a small distortion in its octahedral environment. The Ru—Cl bond lengths are shorter than those present analogous -ruthenium(II) compound containing bipyridine ligand. C—O distances two symmetry-independent carboxylic acid moieties ligand similar one group, but different other. This is probably due...