Hydrated Electron
Mostrando 1-12 de 94 artigos, teses e dissertações.
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1. Agro-Industrial Waste Valorization: Transformation of Starch from Mango Kernel into Biocompatible, Thermoresponsive and High Swelling Nanogels
Mango industry processing disposes 40-60% of this fruit as residues, such as peels and kernels. The exploration of bioproducts from these industrial rejects can reduce environmental impact besides of producing high value-added materials. In this scenario, carboxymethyl starch nanoparticles were produced from mango (Mangifera indica L.) kernel starch. These n
J. Braz. Chem. Soc.. Publicado em: 2021-08
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2. Reduction of Aqueous Ag+ Steered by Electrochemical Plasma: Connecting the Bulk pH Variation with the Reaction Pathways for Hydrated Electrons
Reduction of silver cations followed by nanoparticle (Ag-NPs) synthesis is a model process to understand the reduction mechanism induced by a discharge over an aqueous surface, termed electrochemical plasma. This work aims at studying the silver reduction reaction steered by electrochemical plasma in the presence of other chemically active plasma-related int
J. Braz. Chem. Soc.. Publicado em: 23/05/2019
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3. Impact of an Alkaline Solution on the Chemistry, Mineralogy, and Sorption Properties of a Typic Rhodudult Soil
Abstract The preferred option for disposal of short-lived low and intermediate level radioactive wastes is a near surface disposal facility in which soil is one of the barriers that avoid radionuclide migration outside the controlled area. For construction of that kind of facility, concrete is widely used, and its interaction with water induces its degradati
Rev. Bras. Ciênc. Solo. Publicado em: 09/11/2017
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4. ESTUDO QUÍMICO DE EFLORESCÊNCIAS SALINAS DO SÍTIO ARQUEOLÓGICO TOCA EXÚ DO JURUBEBA DO PARQUE NACIONAL SERRA DA CAPIVARA, PIAUÍ, BRASIL
Toca Exú do Jurubeba is part of a set of archaeological sites located in the Serra da Capivara National Park (Piauí, Brazil), a region of great world interest due to its archaeological potential, especially rock art. However, rock art is constantly threatened by both natural and anthropic factors. Among the natural salts efflorescences that are deposited o
Quím. Nova. Publicado em: 2017-09
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5. Synthesis of high value-added zeolitic materials using glass powder residue as a silica source
In this work, zeolite A was obtained using alkaline fusion followed by a hydrothermal treatment of glass powder residue derived from the manufacturing of glass. The following parameters were evaluated: leaching of the stock material (silica source), mineralizing agent, alumina source, and the alkaline fusion and crystallization temperatures. The synthesized
Mat. Res.. Publicado em: 26/11/2013
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6. Estudo do transporte de cargas elétricas por sílicas amorfas hidratadas sob campo elétrico de alta intensidade / Study of the electrical charge transport by amorphous silica on high intensity electric field
A idéia do trabalho desenvolvido surgiu da observação causal de um fenômeno, no qual partículas de sílicas amorfas eram arrastadas paralelamente às linhas de um campo elétrico DC ao qual esse material foi submetido. É um estudo inédito, não havendo nenhum relato na literatura, de forma que todo o instrumental foi exclusivamente projetado e montado
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/08/2010
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7. Characterization of interference thin films grown on stainless steel surface by alternate pulse current in a sulphochromic solution
The aim of this work was to characterize thin interference films grown on the surface of AISI 304 stainless steel for decorative purposes. Films were grown in a sulphochromic solution at room temperature by an alternating pulse current method. The morphology and chemical state of the elements in the films were investigated by field emission scanning electron
Materials Research. Publicado em: 2008-12
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8. Aproveitamento de resíduos minerais na formulação de argamassas para a construção civil
Current environmental concerns include the excessive consumption and inefficient use of non-renewable natural resources. The construction industry is considered one of the largest consumers of natural raw materials, significantly contributing to the environmental degradation of the planet. The use of calcareous quarry (RPPC) and porcelain tile polishing resi
Publicado em: 2008
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9. MICROSTRUCTURE OF COVERCRETE CONCRETES WITH HIGH CONTENTS OF SLAG AND FLY ASH ACTIVATED BY PORTLAND CEMENTE AND HYDRATED LIME / MICROESTRUTURA DO COBRIMENTO DE CONCRETOS COM ALTOS TEORES DE ESCÓRIA E CINZA VOLANTE ATIVADAS POR CIMENTO PORTLAND E CAL HIDRATADA
In the history of the concrete structures there was a time in which the mechanical resistance was the most important property for the designers. However due to amount of pathologies in the concrete structures and your respective worn-out amounts in recovery, other feature is being prioritized: the durability. And for environmental reasons as global heating,
Publicado em: 2007
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10. Comparison of some properties of Cu(II) 2,3- , 3,5- and 2,6-dimethoxybenzoates
The physico-chemical properties and thermal stability in air of Cu(II) 2,3- , 3,5- and 2,6-dimethoxybenzoates were compared and the influence of the position of -OCH3 substituent on their thermal stability was investigated. The complexes are crystalline, hydrated salts with blue colour. The carboxylate ion is a bidentate chelating or bridging group. The ther
Eclética Química. Publicado em: 2006
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11. Magnetic, thermal and spectral properties of Ni(II) 2,3- , 3,5- and 2,6-dimethoxybenzoates
Complexes of Ni(II) 2,3-, 3,5- and 2,6-dimethoxybenzoates have been synthesized, their physico-chemical properties have been compared and the influence of the position of -OCH3 substituent on their properties investigated. The analysed compounds are crystalline, hydrated salts with green colour. The carboxylate ions show a bidentate chelating or bridging coo
Eclética Química. Publicado em: 2006
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12. "Propriedades estruturais de agregados anfifílicos catiônicos: interação com material genético" / structural properties of cationic amphiphilic aggregates: interaction with genetic material
Though less efficient than viral vectors, cationic lipids have been used as carriers in gene therapy. They offer several advantages over viral vectors, including the low immunogenic and inflammatory responses, the potential transfer of unlimited-size expression units, and the possibility for engineered cell-specific targeting. However, the interaction betwee
Publicado em: 2006