Search Results - "da Silva, V. Teixeira"

Lowering the synthesis temperature of Ni2P/SiO2 by palladium addition by da Silva, V. Teixeira, Sousa, L.A., Amorim, R.M., Andrini, L., Figueroa, S.J.A., Requejo, F.G., Vicentini, Flavio C.

“…Addition of small amounts of palladium to a nickel phosphate supported on silica sample lead to a decrease of ∼200K in the synthesis temperature of Ni2P/SiO2…”
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Levulinic acid esterification with ethanol to ethyl levulinate production over solid acid catalysts by Fernandes, D.R., Rocha, A.S., Mai, E.F., Mota, Claudio J.A., Teixeira da Silva, V.

“… [Display omitted] ► The activity of sulfated oxides for levulinic acid esterification correlates with their acidity. ► Successive sulfations of SnO2 increase…”
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In situ catalytic upgrading of bio-oil using supported molybdenum carbide by Patel, M.A., Baldanza, M.A.S., Teixeira da Silva, V., Bridgwater, A.V.

“…•Catalytic fast pyrolysis of sugarcane bagasse was done using molybdenum carbide.•Increasing concentrations of molybdenum carbide decreased bio-oil yield.•The…”
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XAFS Characterization of Highly Active Alumina-Supported Molybdenum Phosphide Catalysts (MoP/Al2O3) for Hydrotreating by Oyama, S. T, Clark, P, Teixeira da Silva, V. L. S, Lede, E. J, Requejo, F. G

“…Alumina-supported molybdenum phosphide (MoP/Al2O3) catalysts were prepared by temperature-programmed reduction of supported phosphate precursors in H2 at 0.083…”
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The effect of copper loading on the acidity of Cu/HZSM-5 catalysts: IR of ammonia and methanol for methylamines synthesis by Nunes, M.H.O., Silva, V. Teixeira da, Schmal, M.

“…The Cu/HZSM-5 catalysts (1.2, 3.7 and 6.0%, p/p, in Cu) were tested in methanol amination showing that the 3.7% copper sample was fairly more selective to MMA…”
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Hydrotreatment of sunflower oil using supported molybdenum carbide by Sousa, L.A., Zotin, J.L., Teixeira da Silva, V.

“…[Display omitted] ► The activity of Mo2C/Al2O3 in the hydrotreating of sunflower oil was evaluated. ► Mo2C/Al2O3 promotes deoxygenation of the carboxyl of the…”
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Synthesis of a Mo/Nb mixed carbide by Teixeira da Silva, V. L. S., Schmal, M., Schwartz, V., Oyama, S. T.

“…Molybdenum and niobium carbides (β−Mo2C, NbC), as well as mixed carbides of molybdenum and niobium, were synthesized by the temperature-programmed…”
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Carbided Y zeolite-supported molybdenum: On the genesis of the active species, activity and stability in benzene hydrogenation by Rocha, A.S., da Silva, V. Teixeira, Faro, A.C.

“…The properties of molybdenum catalysts prepared by temperature-programmed decomposition of Mo(CO) 6 adsorbed on de-aluminated Y zeolites were studied as a…”
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Sol–gel synthesis of titania–alumina catalyst supports by Kaneko, E.Y, Pulcinelli, S.H, Teixeira da Silva, V, Santilli, C.V

“…Titanium oxide is a good candidate as new support for hydrotreating (HDT) catalysts, but has the inconvenience of presenting small surface area and poor…”
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Synthesis of Niobium Carbide from Niobium Oxide Aerogels by Teixeira da Silva, V. L. S, Ko, E. I, Schmal, M, Oyama, S. T

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Regeneration of a Deactivated Hydrotreating Catalyst by Teixeira da Silva, V. L. S, Lima, F. P, Dieguez, L. C, Schmal, M

“…A commercial NiMo/Al2O3 catalyst deactivated in a shale oil hydrogenation plant was submitted to several regeneration procedures. The results show that direct…”
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Activation and Regeneration of a NiMo/Al2O3 Hydrotreatment Catalyst by Teixeira da Silva, V. L. S, Frety, R, Schmal, Martin

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Effect of the Nature of the Carbon Support on the Guaiacol Hydrodeoxygenation Performance of Nickel Phosphide: Comparison between Carbon Nanotubes and a Mesoporous Carbon Support by Feitosa, Leon Fagner, Berhault, Gilles, Laurenti, Dorothée, Teixeira da Silva, Victor

“…The influence of two different kinds of carbon support, carbon nanotubes or a mesoporous carbon, on the physicochemical properties of the nickel phosphide…”
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Niobium Carbide Synthesis from Niobium Oxide: Study of the Synthesis Conditions, Kinetics, and Solid-State Transformation Mechanism by Teixeira da Silva, V.L.S., Schmal, M., Oyama, S.T.

“…The carburization of B-niobium oxide (B-Nb2O5) to niobium carbide (NbC) in 20% (v/v) CH4/H2was studied at temperature-programmed conditions. The reaction…”
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Benzene adsorption on Mo2C: A theoretical and experimental study by ROCHA, A. S, ROCHA, A. B, DA SILVA, V. Teixeira

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Improvement of the Mo/TiO2-Al2O3 catalyst by the control of the sol-gel synthesis by CECILIO, A. A, PULCINELLI, S. H, SANTILLI, C. V, MANIETTE, Y, TEIXEIRA DA SILVA, V

“…Traditional hydrotreating catalysts are constituted by molybdenum deposited on Al2O3 promoted by nickel and phosphorous. Several studies have shown that…”
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Stability of Transition-metal Carbides in Liquid Phase Reactions Relevant for Biomass-Based Conversion by Souza Macedo, Luana, Stellwagen, Daniel R., Teixeira da Silva, Victor, Bitter, Johannes H.

“…Transition‐metal carbides have been employed for biobased conversions aiming to replace the rare noble metals. However, when reactions are in liquid phase,…”
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Benzene adsorption on Mo 2C: A theoretical and experimental study by Rocha, A.S., Rocha, A.B., da Silva, V. Teixeira

“…Continuous gas-phase benzene hydrogenation at 363 K and atmospheric pressure was studied using bulk molybdenum carbide as a catalyst. It was observed that…”
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Improvement of the Mo/TiO 2 -Al 2 O 3 Catalyst by the Control of the Sol-Gel Synthesis by Cecílio, A.A., Pulcinelli, S.H., Santilli, C.V., Maniette, Y., da Silva, V. Teixeira

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