Search Results - "Rocha, Angela S"

Investigation of the catalytic activity of niobium phosphates for liquid phase alkylation of anisole with benzyl chloride by de La Cruz, Marcus Henrique C., Rocha, Ângela S., Lachter, Elizabeth R., Forrester, Aline M.S., Reis, Michele Castro, San Gil, Rosane A.S., Caldarelli, Stefano, Farias, Andrea D., Gonzalez, Wilma A.

“…[Display omitted] ▶ 31P and 93Nb solid state NMR proved to be more sensitive in evaluating the presence of different phases in niobium phosphate compared with…”
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Hydrodeoxygenation of acrylic acid using Mo2C/Al2O3 by Rocha, Angela S., Souza, Leandro A., Oliveira, Ricardo R., Rocha, Alexandre B., Teixeira da Silva, Victor

“…[Display omitted] •Propane is the main product in HDO of acrylic acid on Mo2C/Al2O3 at atmospheric pressure.•DRIFTS and TPSR data suggest a that a dehydration…”
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Acidity enhancement of niobia by sulfation: An experimental and DFT study by Rocha, Angela S., Costa, Gustavo C., Tamiasso-Martinhon, Priscila, Sousa, Célia, Rocha, Alexandre B.

“…Acidic solids are used as catalyst at several industrial processes and studies to improve their activities have been developed by different groups. One method…”
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Insights into the Phosphate Species on Niobia Treated with H3PO4 by Rocha, Angela S., Costa, Gustavo C., de Araujo, Lúcia R. Raddi, Misael, Wilken A., Oliveira, Ricardo R., Rocha, Alexandre B.

“…Solid acid catalysts are largely used in several industrial processes, and the development of materials with high activity, selectivity and reusability is a…”
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Influence of substrate on the activity of composite film of TiO2 and chitosan for photodecolorization of a reactive dye solution by Etshindo, Lourdes A., Tamiasso-Martinhon, Priscila, Sousa, Célia, de Araujo, Lúcia R. Raddi, Rocha, Angela S.

“…Reactive dyes are refractory organic pollutants that should be eliminated from colored effluents before the disposing and photocatalytic processes using TiO 2…”
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Investigation of hydrogen occlusion by molybdenum carbide by OLIVEIRA, Ricardo R, ROCHA, Angela S, DA SILVA, Victor Teixeira, ROCHA, Alexandre B

“…The incorporation of hydrogen in the bulk of molybdenum carbide is studied by experimental and theoretical methods. The motivation for this study is to explain…”
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Characterization by 27Al NMR, X-ray Absorption Spectroscopy, and Density Functional Theory Techniques of the Species Responsible for Benzene Hydrogenation in Y Zeolite-Supported Carburized Molybdenum Catalysts by Rocha, Angela S, da Silva, Victor Teixeira, Eon, Jean G, de Menezes, Sônia M. C, Faro, Arnaldo C, Rocha, Alexandre B

“…Carburized molybdenum catalysts supported on a dealuminated NaH−Y zeolite were prepared by carburization under a 20% methane in hydrogen flow of two precursors…”
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Niobia-modified aluminas prepared by impregnation with niobium peroxo complexes for dimethyl ether production by Rocha, Angela S., da S. Forrester, Aline M., Lachter, Elizabeth R., Sousa-Aguiar, Eduardo F., Faro, Arnaldo C.

“…[Display omitted] ► Use of niobium peroxo complexes allowed the preparation of alumina-supported niobia with up to 20wt% niobia in a single impregnation step…”
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Catalytic activity of niobium phosphate in the benzylation of anisole with styrene, benzyl alcohol and benzyl chloride by de la Cruz, Marcus H. C., Rocha, Angela S., da Silva, João F. C., San Gil, Rosane A. S., Lachter, Elizabeth R.

“…The catalytic activity of niobium phosphate was evaluated in the benzylation of anisole with three alkylating agents. Niobium phosphate was characterized by N…”
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Alumina-, niobia-, and niobia/alumina-supported NiMoS catalysts: Surface properties and activities in the hydrodesulfurization of thiophene and hydrodenitrogenation of 2,6-dimethylaniline by Rocha, Angela S., Faro, Arnaldo C., Oliviero, Laetitia, Van Gestel, Jacob, Maugé, Françoise

“…The activity of NiMoS catalysts supported on niobia, alumina, and niobia/alumina was compared for the thiophene hydrodesulfurization (HDS) and…”
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Liquid phase alkylation of anisole by benzyl alcohol catalyzed on alumina-supported niobia by de la Cruz, Marcus H.C., Abdel-Rehim, Mona A., Rocha, Angela S., da Silva, João F.C., da Costa Faro, Arnaldo, Lachter, Elizabeth R.

“…The catalytic activity of Nb 2O 5, Al 2O 3 and alumina-supported niobia were evaluated in the alkylation reaction of anisole with benzyl alcohol in liquid…”
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Effect of the electronic properties of Mo sulfide phase on the hydrotreating activity of catalysts supported on Al2O3, Nb2O5 and Nb2O5/Al2O3 by ROCHA, Angela S, FARO, Arnaldo C, OLIVIERO, Laetitia, LELIAS, Marc Antoine, TRAVERT, Arnaud, VAN GESTEL, Jacob, MAUGE, Francoise

“…Activity in thiophene hydrodesulfurization (HDS) and in the three routes of 2,6-dimethylaniline (DMA) decomposition was examined on Mo sulfide catalysts…”
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Low temperature low pressure benzene hydrogenation on Y zeolite-supported carbided molybdenum by Rocha, Ângela S., Silva, Victor L. T. da, Leitão, Alexandre A., Herbst, Marcelo H., Jr, Arnaldo C. Faro

“…Carbided molybdenum catalysts supported on ultrastable Y zeolites were prepared by adsorption of molybdenum hexacarbonyl vapors at 343 K or wet point…”
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Adsorption and infrared spectra simulations of acrylic acid over (001) surface of molybdenum carbide by Oliveira, Ricardo R., Rocha, Angela S., Rocha, Alexandre B.

“…Molybdenum carbide (Mo2C) can be employed as catalyst and the nature of the active sites and reactants are often investigated by adsorption of probe molecules,…”
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SnO2-TiO2 materials for photocatalytic degradation of cationic dye under UV and visible light and a chitosan composite film investigation by Etshindo, Lourdes A., Sousa, Célia, Tamiasso-Martinhon, Priscila, Colaço, Marcos V., Camara, Alexandre R., Rocha, Angela S.

“…The possibility of SnO2 incorporation and immobilization as films forming composites opens new perspectives for TiO2 to profit visible light and to facilitate…”
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Insights into the Phosphate Species on Niobia Treated with H.sub.3PO.sub.4 by Rocha, Angela S, Costa, Gustavo C, de Araujo, Lúcia R. Raddi, Misael, Wilken A, Oliveira, Ricardo R, Rocha, Alexandre B

“…Solid acid catalysts are largely used in several industrial processes, and the development of materials with high activity, selectivity and reusability is a…”
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Hydrodeoxygenation of acrylic acid using MO^sub 2^C/Al^sub 2^O^sub 3 by Rocha, Angela S, Souza, Leandro A, Oliveira, Ricardo R, Rocha, Alexandre B, da Silva, Victor Teixeira

“…Hydrodeoxygenation of acrylic acid to propane on M02C/Al203 was investigated by temperature- programmed surface reaction and diffuse reflectance infrared…”
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Comparative performance of niobium phosphates in liquid phase anisole benzylation with benzyl alcohol by Rocha, Angela S., Forrester, Aline M.S., de la Cruz, Marcus H.C., da Silva, Camilla T., Lachter, Elizabeth R.

“…Four niobium phosphate samples obtained by different methods were tested in the alkylation of anisole with benzyl alcohol. The catalysts were characterized by…”
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Análise por componentes principais de espectros nexafs na especiação do molibdênio em catalisadores de hidrotratamento Principal component analysis of nexafs spectra for molybdenum speciation in hydrotreating catalysts by Arnaldo da C. Faro Jr, Victor de O. Rodrigues, Jean-G. Eon, Angela S. Rocha

“…Bulk and supported molybdenum based catalysts, modified by nickel, phosphorous or tungsten were studied by NEXAFS spectroscopy at the Mo L III and L II edges…”
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Characterization by 27 Al NMR, X-ray Absorption Spectroscopy, and Density Functional Theory Techniques of the Species Responsible for Benzene Hydrogenation in Y Zeolite-Supported Carburized Molybdenum Catalysts by Rocha, Angela S., da Silva, Victor Teixeira, Eon, Jean G., de Menezes, Sônia M. C., Faro, Arnaldo C., Rocha, Alexandre B.

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