Gladson de Souza Machado

Intercalation of Glyphosate in Mg–Al Layered Double Hydroxides and Its Controlled Release

Emanoel Hottes, Gladson de Souza Machado, Glauco Favilla Bauerfeldt, Rosane Nora Castro et autres

High Resolution Image Download MS PowerPoint Slide The LDHs in the Mg–Al systems containing glyphosate were synthesized by the reconstruction and coprecipitation methods at a constant pH. The XRD data show that the Mg 2 Al–glyphosate hybrid material was formed in both …

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Kinetic analysis of the acetone-butanol-ethanol combustion mechanism in 0D simulated Otto cycle internal engine

Gladson de Souza Machado, Glauco Favilla Bauerfeldt

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Chemical mechanism for the decomposition of CH3NH2 and implications to interstellar glycine

Diego N de Jesus, Tatiane Nicola Tejero, Gladson de Souza Machado, Neubi Francisco Xavier et autres

ABSTRACT Complex organic molecules from extraterrestrial source are expected to have contributed to the Early Earth chemistry. Methylamine (CH3NH2)has already been observed in the interstellar medium (ISM) and is generally related to the formation of glycine, although the latter has not been …

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Prediction of Rate Coefficients for the H2CO + OH → HCO + H2O Reaction at Combustion, Atmospheric and Interstellar Medium Conditions

Gladson de Souza Machado, Eduardo Monteiro Martins, Leonardo Baptista, Glauco Favilla Bauerfeldt

Despite the relevance of the H 2 CO + OH → HCO + H 2 O reaction for combustion, atmospheric, and interstellar medium conditions, a large discrepancy on energetic and kinetic data for this reaction is still observed in the previous literature. …

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Theoretical investigation of the formic acid decomposition kinetics

Gladson de Souza Machado, Eduardo Monteiro Martins, Leonardo Baptista, Glauco Favilla Bauerfeldt

Abstract Decomposition of formic acid (HCO 2 H) proceeds via three unimolecular channels: dehydration, decarboxylation, and dissociation, the latter expected to be of minor contribution to the overall kinetics. In addition, despite the similar values reported for the individual activation energies for …

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Assessment of the BTEX concentrations and reactivity in a confined parking area in Rio de Janeiro, Brazil

Barbara Prestes de Castro, Gladson de Souza Machado, Glauco Favilla Bauerfeldt, Júlio Domingos Nunes Fortes et autres

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ChemInform Abstract: A KINETICS STUDY OF THE TEMPERATURE DEPENDENCE OF THE REACTIONS OF HYDROXYL RADICAL (OH(2Π)) WITH 1,1‐DICHLORO‐2,2,2‐TRIFLUOROETHANE, 1‐CHLORO‐1,2,2,2‐TETRAFLUOROETHANE, AND 1,2‐DICHLORO‐2,2‐DIFLUOROETHANE

R. T. Watson, Akkihebbal Ramaiah Ravishankara, Gladson de Souza Machado, S. Wagner et autres

A kinetics study of the temperature dependence of the reactions of OH(2Π) with CF3CHCl2, CF3CHClF, and CF2ClCH2Cl

Robert Tony Watson, Akkihebbal Ramaiah Ravishankara, Gladson de Souza Machado, S. Wagner et autres

Abstract The flash photolysis resonance fluorescence technique has been utilized to determine the rate constants for three reactions involving the hydroxyl radical [OH(2≅)] and three halogenated C2 alkanes. The nominal temperature range covered was 250–375 K. The compounds studied and the resulting …

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A temperature dependent kinetics study of the reaction of OH with CH2ClF, CHCl2F, CHClF2, CH3CCl3, CH3CF2Cl, and CF2ClCFCl2

R. T. Watson, Gladson de Souza Machado, B. Conaway, S. Wagner et autres

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A temperature dependent kinetics study of the reaction of hydroxyl radicals with chlorofluoromethane, dichlorofluoromethane, chlorodifluoromethane, 1,1,1-trichloroethane, 1-chloro-1,1-difluoroethane, and 1,1,2-trichloro-1,2,2-trifluoroethane

Robert Tony Watson, Gladson de Souza Machado, B. Conaway, S. Wagner et autres

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTA temperature dependent kinetics study of the reaction of hydroxyl radicals with chlorofluoromethane, dichlorofluoromethane, chlorodifluoromethane, 1,1,1-trichloroethane, 1-chloro-1,1-difluoroethane, and 1,1,2-trichloro-1,2,2-trifluoroethaneR. T. Watson, G. Machado, B. Conaway, S. Wagner, and D. D. DavisCite this: J. Phys. Chem. 1977, 81, 3, 256–262Publication …

ChemInform Abstract: A TEMPERATURE DEPENDENT KINETICS STUDY OF THE REACTION OF HYDROXYL WITH CHLOROMETHANE, DICLOROMETHANE, TRICHLOROMETHANE, AND BROMOMETHANE

D. D. Davis, Gladson de Souza Machado, B. Conaway, Young Woo Oh et autres

A temperature dependence kinetics study of the reactions of Cl (2P3/2) with O3, CH4, and H2O2

Robert J. Watson, Gladson de Souza Machado, S. Fischer, Douglas D. Davis

The technique of flash photolysis–resonance fluorescence has been utilized to study the temperature dependences of two chlorine atom reactions of considerable fundamental importance to stratospheric chemistry. These reactions have been studied using a wide range of experimental conditions to ensure the absence …

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