Search Results - "Asencios, Yvan J O"

Development of a Solid Catalyst Based on Pt Supported on Heterostructure (NaNbO3/NaNb3O8/NiO) Applied to the Photodegradation of Phenol in Seawater by Kimberly G. Costa, Yvan J. O. Asencios

“…Phenol and its derivatives are present in effluents from several industrial processes, such as petroleum refining (produced water) and the pharmaceutical…”
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Eichhornia crassipes (Mart.) Solms (natural or carbonized) as biosorbent to remove pollutants in water by Lima, Herbert de P., Asencios, Yvan J. O.

“…The prolific aquatic herb Eichhornia crassipes considered a pest in many countries can cause damage such as obstruction of water flows and impair the…”
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Synthesis of high-surface-area γ-Al2O3 from aluminum scrap and its use for the adsorption of metals: Pb(II), Cd(II) and Zn(II) by Asencios, Yvan J.O., Sun-Kou, María R.

“…[Display omitted] ► Aluminum hydroxide obtained from aluminum scrap led to the formation of gamma alumina. ► Acidic pH of precipitation favored the formation…”
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Partial Oxidation of Bio-methane over Nickel Supported on MgO–ZrO2 Solid Solutions by Asencios, Yvan J. O., Yigit, Nevzat, Wicht, Thomas, Stöger-Pollach, Michael, Lucrédio, Alessandra F., Marcos, Francielle C. F., Assaf, Elisabete M., Rupprechter, Günther

“…Syngas can be produced from biomethane via Partial Oxidation of Methane (POM), being an attractive route since it is ecofriendly and sustainable. In this work,…”
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Dry reforming of methane on Ni–Mg–Al nano-spheroid oxide catalysts prepared by the sol–gel method from hydrotalcite-like precursors by González, Albert R., Asencios, Yvan J.O., Assaf, Elisabete M., Assaf, José M.

“…•Nanospheric structures of mixed oxides were generated from Ni–Mg–Al layered double hydroxides.•The higher the calcining temperature of Ni–Mg–Al layered double…”
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Alkaline Modification of Arabica -Coffee and Theobroma -Cocoa Agroindustrial Waste for Effective Removal of Pb(II) from Aqueous Solutions by Lavado-Meza, Carmencita, De la Cruz-Cerrón, Leonel, Asencios, Yvan J O, Marcos, Francielle Candian Firmino, Dávalos-Prado, Juan Z

“…Arabica-coffee and Theobroma-cocoa agroindustrial wastes were treated with NaOH and characterized to efficiently remove Pb(II) from the aqueous media. The…”
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Photodegradation of Organic Pollutants in Seawater and Hydrogen Production via Methanol Photoreforming with Hydrated Niobium Pentoxide Catalysts by Asencios, Yvan J. O., Machado, Vanessa A.

“…In this work, the photocatalytic activity of Hydrated Niobium Pentoxide (synthesized by a simple and inexpensive method) was explored in two unknown reactions…”
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Cd2+ Detection by an Electrochemical Electrode Based on MWCNT–Orange Peel Activated Carbon by Beas-Bernuy, Luis C., Cardenas-Riojas, Andy A., Calderon-Zavaleta, Sandy L., Quiroz-Aguinaga, Ulises, La Rosa-Toro, Adolfo, López, Elvis O., Asencios, Yvan J. O., Baena-Moncada, Angelica M., Muedas-Taipe, Golfer

“…This study reports the development of a new electrochemical sensor based on a carbon paste electrode (CPE) composed of biomass-based orange peel activated…”
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Oxidative-reforming of model biogas over NiO/Al2O3 catalysts: The influence of the variation of support synthesis conditions by Asencios, Yvan J.O., Elias, Kariny F.M., Assaf, Elisabete M.

“…•Precipitation pH and ageing T°C of Al2O3 influenced the performance of Ni/Al2O3.•Ni catalysts supported on Al2O3 obtained at pH 7 recorded high conversion…”
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Synthesis of NiO/Y2O3/ZrO2 Catalysts Prepared by One-Step Polymerization Method and Their Use in the Syngas Production from Methane by Asencios, Yvan J. O., Assaf, Elisabete M.

“…In this work, the production of Syngas (H2/CO) from oxidative reforming of methane (ORM) and partial oxidation of methane (POM) over NiO/Y2O3/ZrO2 catalysts…”
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Combination of dry reforming and partial oxidation of methane on NiO–MgO–ZrO2 catalyst: Effect of nickel content by Asencios, Yvan J.O., Assaf, Elisabete M.

“…The effect of nickel content on NiO–MgO–ZrO2 catalysts was investigated. They were characterized by XRD, in-situ XRD, TPR and BET and tested in POM and DRM…”
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Oxidative reforming of model biogas over NiO–Y2O3–ZrO2 catalysts by Asencios, Yvan J.O., Rodella, Cristiane B., Assaf, Elisabete M.

“…[Display omitted] ► NiO–Y2O3 and Y2O3–ZrO2 solid solutions were formed in the catalysts. ► The mixture of both solid solutions favored the catalysis. ►…”
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Synthesis of NiO―MgO―ZrO2 catalysts and their performance in reforming of model biogas by ASENCIOS, Yvan J. O, BELLIDO, Jorge D. A, ASSAF, Elisabete M

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Hydrogen production by steam reforming of ethanol over Co3O4/La2O3/CeO2 catalysts synthesized by one-step polymerization method by CARVALHO, Flavio L. S, ASENCIOS, Yvan J. O, REGO, Ana M. B, ASSAF, Elisabete M

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Partial oxidation of methane on NiO–MgO–ZrO2 catalysts by Asencios, Yvan J.O., Nascente, Pedro A.P., Assaf, Elisabete M.

“…[Display omitted] ► Catalysts with less Ni atoms on surface achieved a high rate of conversion. ► The greater the amount of NiO–MgO solution formed, the higher…”
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Photocatalytic activity of Nb heterostructure (NaNbO3/Na2Nb4O11) and Nb/clay materials in the degradation of organic compounds by Asencios, Yvan J.O., Quijo, Marcella V., Marcos, Francielle C.F., Nogueira, André E., Rocca, René R., Assaf, Elisabete M.

“…[Display omitted] •Heterostructure of Nb (NaNbO3/Na2Nb4O11) showed very good photocatalytic activity.•Heterostructure of Nb was obtained by a simple and…”
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Removal of azo dyes in aqueous solutions using magnetized and chemically modified chitosan beads by Muedas-Taipe, Golfer, Maza Mejía, Ily M., Santillan, Fátima A., Velásquez, Carlos J., Asencios, Yvan J.O.

“…Azo dyes in wastewater coming from textile industry are detrimental, toxic, and affect the human health; therefore efficient wastewater treatments are needed…”
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Hexagonal-Nb2O5/Anatase-TiO2 mixtures and their applications in the removal of Methylene Blue dye under various conditions by Ferraz, Nathália P., Marcos, Francielle C.F., Nogueira, André E., Martins, Alysson S., Lanza, Marcos R.V., Assaf, Elisabete M., Asencios, Yvan J.O.

“…To the best of our knowledge, catalysts based on mixtures of Hexagonal-Nb2O5/Anatase-TiO2 have not been well studied yet. In this sense, the aim of the present…”
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Removal of phenol in seawater by heterogeneous photocatalysis using activated carbon materials modified with TiO2 by Asencios, Yvan J.O., Lourenço, Vitória S., Carvalho, Wagner A.

“…[Display omitted] •Carbon-TiO2 composites were synthesized using glycerol (residue of biodiesel).•Carbon- TiO2 composites showed very good results for the…”
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Bio-ethanol steam reforming for hydrogen production over Co3O4/CeO2 catalysts synthesized by one-step polymerization method by Carvalho, Flávio L.S., Asencios, Yvan J.O., Bellido, Jorge D.A., Assaf, Elisabete M.

“…Bio-ethanol is a renewable energy carrier and its use in the reforming of bio-ethanol is promising for hydrogen production. In this work, a set of materials…”
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