Search Results - "Brito, Joaquin L."

Effect of the type of precursor and the synthesis method on thiophene hydrodesulfurization activity of activated carbon supported Fe-Mo, Co-Mo and Ni-Mo carbides by Puello-Polo, Esneyder, Brito, Joaquín L.

“…Activated carbon supported bimetallic M-Mo carbides (M = Fe, Co, Ni) derived from sulfate precursors showed high HDS activity even without sulfiding…”
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Novel MoO2/carbon hierarchical nano/microcomposites: synthesis, characterization, solid state transformations and thiophene HDS activity by Avendaño, Carlos, Briceño, Alexander, Méndez, Franklin J, Brito, Joaquín L, González, Gema, Cañizales, Edgar, Atencio, Reinaldo, Dieudonné, Philippe

“…Novel MoO(2)/C nano/microcomposites were prepared via a bottom-up approach by hydrothermal carbonization of a solution of glucose as a carbon precursor in the…”
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Synthesis of Pt and Pt–Sn catalysts supported on H-Y zeolite induced by microwave radiation by Mediavilla, Marta, Melo, Luis, Brito, Joaquín L., Moronta, Delfin, Solano, Roger, Gonzalez, Ismael, Morales, Ricardo

“…[Display omitted] ► The microwave polyol is a fast method for the preparation of Pt and Pt–Sn catalysts. ► XPS revealed the presence of Pt0 species in…”
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Microwave-assisted polyol synthesis of Pt/H-ZSM5 catalysts by Mediavilla, Marta, Morales, Husley, Melo, Luis, Sifontes, Angela B., Albornoz, Alberto, Llanos, Aura, Moronta, Delfin, Solano, Roger, Brito, Joaquín L.

“…Three H-ZSM5 solids with Si/Al atomic ratios of 22, 71 and 96 were synthesized and characterized by X-ray diffraction (XRD), ICP-AES chemical analysis and…”
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MIBK from acetone on Pd/H-[Ga]ZSM5 catalysts: Effect of metal loading by Mediavilla, Marta, Melo, Luis, Díaz, Yraida, Albornoz, Alberto, Llanos, Aura, Brito, Joaquín L.

“…This work presents the preparation and characterization of three bifunctional catalysts consisting of palladium supported on H-[Ga]ZSM5 zeolite, with a Si/Ga…”
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Catalytic wet air oxidation of Aqueous solutions of substituted phenols by POSADA, Diana, BETANCOURT, Paulino, LIENDO, Fernando, BRITO, Joaquin L

“…Catalytic wet air oxidation (CWAO) of aqueous solutions of phenol, 2-chlorophenol and 4-nitrophenol were studied using Cu/CeO2 with 4% of copper as catalytic…”
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Effects of methyl group on aromatic hydrocarbons on the nanostructures and oxidative reactivity of combustion-generated soot by Guerrero Peña, Gerardo D.J., Alrefaai, Mhd Maher, Yang, Seung Yeon, Raj, Abhijeet, Brito, Joaquin L., Stephen, Samuel, Anjana, Tharalekshmy, Pillai, Vinu, Al Shoaibi, Ahmed, Chung, Suk Ho

“…The substituted and unsubstituted aromatic hydrocarbons, present in transportation fuels such as gasoline and diesel, are thought to be responsible for most of…”
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Surface Recognition Directed Selective Removal of Dyes from Aqueous Solution on Hydrophilic Functionalized Petroleum Coke Sorbents. A Supramolecular Perspective by Trujillo, Pablo, González, Teresa, Brito, Joaquín L, Briceño, Alexander

“…Novel controlled hydrophilic nonporous carbon-based sorbents from petroleum coke were obtained by using a hydrothermal oxidation treatment of shot coke with…”
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The Carburization of Transition Metal Molybdates (MxMoO4, M = Cu, Ni or Co) and the Generation of Highly Active Metal/Carbide Catalysts for CO2 Hydrogenation by Xu, Wenqian, Ramírez, Pedro J., Stacchiola, Dario, Brito, Joaquín L., Rodriguez, José A.

“…A new approach has been tested for the preparation of metal/Mo 2 C catalysts using mixed-metal oxide molybdates as precursors. Synchrotron-based in situ…”
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Physicochemical properties of soot generated from toluene diffusion flames: Effects of fuel flow rate by Peña, Gerardo D.J. Guerrero, Raj, Abhijeet, Stephen, Samuel, Anjana, Tharalekshmy, Hammid, Yousef Adnan Said, Brito, Joaquin L., Shoaibi, Ahmed Al

“…Aromatic hydrocarbons are commonly found in fossil-derived transportation fuels, and their combustion in engines produce most of the observed soot particles…”
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Influence of the acid sites density in the acetone transformation over bifunctional Pt/H[Ga]ZSM5 catalysts by Mediavilla, Marta, Melo, Luis, Díaz, Yraida, Brito, Joaquín L., Albornoz, Alberto, Solano, Roger

“…The purpose of this work is to elucidate the effect of acid sites density on the catalytic behaviour of a series of bifunctional catalysts prepared by…”
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Mesoporous catalysts based on Keggin-type heteropolyacids supported on MCM-41 and their application in thiophene hydrodesulfurization by Méndez, Franklin J., Llanos, Aura, Echeverría, Marcel, Jáuregui, Reynaldo, Villasana, Yanet, Díaz, Yraida, Liendo-Polanco, Gustavo, Ramos-García, Miguel A., Zoltan, Tamara, Brito, Joaquín L.

“…[Display omitted] ► Supporting the heteropolyacids increased the catalytic activities. ► Surface acidity and calcination temperature related to HDS activity…”
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Pollutant reduction and catalytic upgrading of a Venezuelan extra-heavy crude oil with Al2O3-supported NiW catalysts: Effect of carburization, nitridation and sulfurization by Villasana, Yanet, Méndez, Franklin J., Luis-Luis, Miguel, Brito, Joaquín L.

“…•Catalysts with (Ni/(Ni + W) = 0.50 had the highest activity in thiophene HDS.•NiW carbide and nitride has potential for pollutant reduction in an extra-heavy…”
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X-ray photoelectron spectroscopy study of pyrolytically coated graphite platforms submitted to simulated electrothermal atomic absorption spectrometry conditions by Ruiz, Frine, Benzo, Zully, Quintal, Manuelita, Garaboto, Ángel, Albornoz, Alberto, Brito, Joaquín L.

“…The present work is part of an ongoing project aiming to a better understanding of the mechanisms of atomization on graphite furnace platforms used for…”
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Effects of fuel-bound methyl groups and fuel flow rate in the diffusion flames of aromatic fuels on the formation of volatile PAHs by Peña, Gerardo D.J. Guerrero, Pillai, Vinu, Raj, Abhijeet, Brito, Joaquin L.

“…Aromatic hydrocarbons constitute a significant fraction of fossil-derived transportation fuels. They are also used as additives to suppress autoignition and to…”
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Effect of fuel flow rate on the characteristics of soot generated from unsubstituted and disubstituted aromatic hydrocarbon flames: Experimental and numerical study by Peña, Gerardo D.J.G., Rahman, Ramees K., Raj, Abhijeet, Stephen, Samuel, Anjana, Tharalekshmy, Brito, Joaquin L.

“…Aromatic hydrocarbons in liquid transportation fuels help in suppressing auto-ignition and knocking tendency in engines, but are toxic and can generate…”
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Dealumination and Characterization of Natural Mordenite-Rich Tuffs by Adriano, Armando, Cornejo, Mauricio H., Baykara, Haci, Ludeña, Eduardo V., Brito, Joaquín L.

“…The present study evaluates the feasibility of partially dealuminated natural mordenite as a catalyst support by studying improvement in its textural…”
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Adsorption properties of novel layered titanium phosphate prepared from mesoporous titania by sol–gel processing by Carvajal, María E., Brito, Joaquín L., Bastardo-González, Ernesto, Méndez, Franklin J.

“…A mesoporous titania material with a single X-ray diffraction signal at small-angle and anatase TiO 2 walls was prepared by a sol–gel method using…”
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Synthesis of La0.8Sr0.2FeO3 perovskites nanocrystals by Pechini sol–gel method by Del Toro, Raquel, Hernández, Petra, Díaz, Yraida, Brito, Joaquín L.

“…Pechini sol–gel method has been employed for the preparation of nanocrystalline La0.8Sr0.2FeO3 perovskite. The synthesis procedure was optimized by varying the…”
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Modeling the interaction of molybdenum species adsorbed on a pyrolytic graphite platform and correlations with XPS spectra at different ETAAS stages by Ruiz, Frine, Brito, Joaquín L., Griffe, Beulah, Benzo, Zully, Ruette, Fernando

“…•DFT calculated interactions of Mo species on a pyrolytic graphite platform.•Calculations shed some lights on Mo adsorbed species during the ETAAS…”
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