Search Results - "Cristian H. Campos"

Stable reduced Ni catalysts for xylose hydrogenation in aqueous medium by Morales, Ruddy, Campos, Cristian H., Fierro, J.L.G., Fraga, Marco A., Pecchi, Gina

“…[Display omitted] •Highly dispersed reduced Ni° catalysts were successfully prepared from mixed oxides precursors.•Crystalline mixed oxides used as precursors…”
Get full text

Catalytic Selective Oxidation of β-O-4 Bond in Phenethoxybenzene as a Lignin Model Using (TBA)5[PMo10V2O40] Nanocatalyst: Optimization of Operational Conditions by Díaz, Juan, Pizzio, Luis R., Pecchi, Gina, Campos, Cristian H., Azócar, Laura, Briones, Rodrigo, Romero, Romina, Troncoso, Eduardo, Méndez-Rivas, Camila, Melín, Victoria, Murillo-Sierra, Juan C., Contreras, David

“…The catalytic oxidation of phenethoxybenzene as a lignin model compound with a β-O-4 bond was conducted using the Keggin-type polyoxometalate nanocatalyst…”
Get full text

Liquid Phase Hydrogenation of Pharmaceutical Interest Nitroarenes over Gold-Supported Alumina Nanowires Catalysts by Shanmugaraj, Krishnamoorthy, Bustamante, Tatiana M, Campos, Cristian H, Torres, Cecilia C

“…In this work, Au nanoparticles, supported in Al O nanowires (ANW) modified with (3-aminopropyl)trimethoxysilane were synthetized, for their use as catalysts in…”
Get full text

Organic–inorganic interpenetrated hybrids based on cationic polymer and hydrous zirconium oxide for arsenate and arsenite removal by Pérez, Jehú, Toledo, Leandro, Campos, Cristian H., Rivas, Bernabé L., Yañez, Jorge, Urbano, Bruno F.

“…[Display omitted] •Cationic polymer-hydrous zirconium oxide hybrids retain arsenite and arsenate.•The higher the hydrous zirconium oxide content the more…”
Get full text

Magnetic Fe₂O₃⁻SiO₂⁻MeO₂⁻Pt (Me = Ti, Sn, Ce) as Catalysts for the Selective Hydrogenation of Cinnamaldehyde. Effect of the Nature of the Metal Oxide by Dinamarca, Robinson, Espinoza-González, Rodrigo, Campos, Cristian H, Pecchi, Gina

“…The type of metal oxide affects the activity and selectivity of Fe₂O₃⁻SiO₂⁻MeO₂⁻Pt (Me = Ti, Sn, Ce) catalysts on the hydrogenation of cinnamaldehyde. The…”
Get full text

Mesoporous Palladium N,N'-Bis(3-Allylsalicylidene)o-Phenylenediamine-Methyl Acrylate Resins as Heterogeneous Catalysts for the Heck Coupling Reaction by Mella, Claudio, Torres, Cecilia C, Pecchi, Gina, Campos, Cristian H

“…Palladium N,N'-bis(3-allylsalicylidene)o-phenylenediamine complex (PdAS) immobilized onto mesoporous polymeric methyl acrylate (MA) based resins (PdAS(x)-MA, x…”
Get full text

The Effect of the ZrO2 Loading in SiO2@ZrO2-CaO Catalysts for Transesterification Reaction by Salinas, Daniela, Guerrero, Sichem, Campos, Cristian H., Bustamante, Tatiana M., Pecchi, Gina

“…The effect of the ZrO2 loading was studied on spherical SiO2@ZrO2-CaO structures synthetized by a simple route that combines the Stöber and sol-gel methods…”
Get full text

Cobalt Nanoparticles Supported on TiO2 for Highly Selective Formation of N-Benzylideneanilines from Nitroarenes and Benzaldehyde via Reductive Imination Reaction by Daniela González-Vera, Tatiana M. Bustamante, J. Noé Díaz de León, Cecilia C. Torres, Cristian H. Campos

“…The search for active, inexpensive, and stable heterogeneous catalysts to produce desired imines in fine chemistry presents an ongoing challenge for both…”
Get full text

Chlorin e6-Conjugated Mesoporous Titania Nanorods as Potential Nanoplatform for Photo-Chemotherapy by Vélez-Peña, Estefanía, Jiménez, Verónica A, Manzo-Merino, Joaquín, Alderete, Joel B, Campos, Cristian H

“…Photodynamic therapy (PDT) has developed as an efficient strategy for cancer treatment. PDT involves the production of reactive oxygen species (ROS) by light…”
Get full text

Nickel and Cobalt Ilmenites-Based Catalysts for Upgrading Pyrolytic Oil during Pyrolysis of Waste Tires by Daniela Correa-Muriel, Hoover Valencia-Sánchez, Héctor Cortes-Hernández, Daniela González-Vera, Javiera Herrera, Cristian H. Campos, Mónica L. Casella, Luis E. Arteaga-Perez, Paula Osorio-Vargas

“…Pyrolysis as a waste treatment method has gained relevance because it can generate higher value-added products in addition to reducing the environment’s…”
Get full text

Tetrabutyl Ammonium Salts of Keggin-Type Vanadium-Substituted Phosphomolybdates and Phosphotungstates for Selective Aerobic Catalytic Oxidation of Benzyl Alcohol by Juan Díaz, Luis R. Pizzio, Gina Pecchi, Cristian H. Campos, Laura Azócar, Rodrigo Briones, Romina Romero, Adolfo Henríquez, Eric M. Gaigneaux, David Contreras

“…A series of tetrabutyl ammonium (TBA) salts of V-included Keggin-type polyoxoanions with W (TBA4PW11V1O40 and TBA5PW10V2O40) and Mo (TBA4PMo11V1O40 and…”
Get full text

A Novel Synthesis of Gold Nanoparticles Supported on Hybrid Polymer/Metal Oxide as Catalysts for p-Chloronitrobenzene Hydrogenation by Alderete, Joel A., Torres, Cecilia C., Urbano, Bruno F., Campos, Cristian H.

“…This contribution reports a novel preparation of gold nanoparticles on polymer/metal oxide hybrid materials (Au/P[VBTACl]-M metal: Al, Ti or Zr) and their use…”
Get full text

Improved stability of Ni/Al2O3 catalysts by effect of promoters (La2O3, CeO2) for ethanol steam-reforming reaction by Osorio-Vargas, Paula, Flores-González, Nicolás A., Navarro, Rufino M., Fierro, Jose L.G., Campos, Cristian H., Reyes, Patricio

“…•Ni/15%La2O3–10%CeO2–γ-Al2O3 catalyst was stable in 24h time-on-stream experiments.•Promoters play an essential role in the stability of Ni…”
Get full text

Selective oxidation of glycerol mediated by surface plasmon of gold nanoparticles deposited on titanium dioxide nanowires by Martínez Q, Henry, Neira, Jane A., Amaya, Álvaro A., Blach V, Diana, Campos, Cristian H., Martínez O, Fernando

“…This paper describes an alternative method for the in situ synthesis of gold nanoparticles (AuNPs) with a particle size of less than 3 nm, using nanoreactors…”
Get full text

Immobilized Pd metal‐complex on polymeric resin with high surface areas for recyclable catalyst: Effect of the immobilization method on nature of palladium species by Mella, Claudio, Pecchi, Gina, Godard, Cyril, Claver, Carmen, Márquez, Abdiel, Campos, Cristian H.

“…A critical query on literature is the approach used to immobilize homogeneous catalysts to improve their efficiency and recyclability. This work aims to…”
Get full text

Simple phenothiazine-based sensitizers for dye-sensitized solar cells: Impact of different electron-donors on their photovoltaic performances by Elangovan, Kavery, Saravanan, Prabhu, Muruganantham, Subramanian, Campos, Cristian H., Chidambaram, Siva, Mangalaraja, Ramalinga Viswanathan, Rajalingam, Renganathan

“…Dye-sensitized solar cells (DSSCs) have been considered as a potential candidate to resolve the current energy crisis. Therefore, we synthesized a series of…”
Get full text

Colorimetric determination of cysteamine based on the aggregation of polyvinylpyrrolidone-stabilized silver nanoparticles by Shanmugaraj, Krishnamoorthy, Sasikumar, Thangarasu, Campos, Cristian H., Ilanchelian, Malaichamy, Mangalaraja, Ramalinga Viswanathan, Torres, Cecilia C.

“…A simple, colorimetric and visual method is described for the determination of cysteamine (CA) using polyvinylpyrrolidone-stabilized silver nanoparticles…”
Get full text

A Simplified Kinetic Model for the Enantioselective Hydrogenation of 1-Phenyl-1,2-Propanedione over Ir/TiO 2 in the Presence of a Chiral Additive by Melián-Cabrera, Ignacio, Marzialetti, Teresita, D'Angelo, M Fernanda Neira, Campos, Cristian H, Reyes, Patricio

“…This communication proposes a preliminary simplified kinetic model for the hydrogenation of 1-phenyl-1,2-propanedione that can render up to eight compounds,…”
Get full text

Improved ethanol steam reforming on Rh/Al2O3 catalysts doped with CeO2 or/and La2O3: Influence in reaction pathways including coke formation by Osorio-Vargas, Paula, Campos, Cristian H., Navarro, Rufino M., Fierro, Jose L.G., Reyes, Patricio

“…[Display omitted] •Rh/γ-Al2O3–CeO2–La2O3-showed promising performance at mild temperature.•Promoters play an essential role in the catalytic behavior of Rh…”
Get full text

Valorization of Waste Tires via Catalytic Fast Pyrolysis Using Palladium Supported on Natural Halloysite by Osorio-Vargas, Paula, Shanmugaraj, Krishnamoorthy, Herrera, Carla, Campos, Cristian H, Torres, Cecilia C, Castillo-Puchi, Francisca, Arteaga-Pérez, Luis E

“…We report for the first time Pd nanoparticles (NPs) supported on natural halloysite as catalysts for selective production of p-cymene from waste tire pyrolysis…”
Get full text