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Listar por palabra clave "Selective oxidation"

Mostrando ítems 1-15 de 15

Au@UiO-66: a base free oxidation catalyst

Leus, K; Concepción Heydorn, Patricia; Vandichel, M.; Meledina, M.; Grirrane, Abdessamad; Esquivel, D.; Turner, S.; Poelman, D.; Waroquier, M.; Van Speybroeck, V.; Van Tendeloo, G.; García Gómez, Hermenegildo; Van Der Voort, P. (Royal Society of Chemistry, 2015)

[EN] We present the in situ synthesis of Au nanoparticles within the Zr based Metal Organic Framework, UiO-66. The resulting Au@UiO-66 materials were characterized by means of N-2 sorption, XRPD, UV-Vis, XRF, XPS and TEM ...
Catalytic activity of unsupported gold nanoparticles

Mikami, Yusuke; Dhakshinamoorthy, Amarajothi; Alvaro Rodríguez, Maria Mercedes; García Gómez, Hermenegildo (Royal Society of Chemistry, 2013)

[EN] This article reviews some of the compelling evidence showing that colloidal gold nanoparticles without any solid support exhibit intrinsic catalytic activity for some of the typical gold-catalyzed reactions including ...
Converting carbohydrates to bulk chemicals and fine chemicals over heterogeneous catalysts

Climent Olmedo, María José; Corma Canós, Avelino; Iborra Chornet, Sara (Royal Society of Chemistry, 2011)

[EN] In this Critical Review, we discuss how carbohydrates can be transformed into a variety of chemicals through heterogeneous catalysis. We focus particularly on oxidation, reduction and dehydration of hexoses, as well ...
Fe2O3 supported on hollow micro/mesospheres silica for the catalytic partial oxidation of H2S to sulfur

Cecilia, J.A.; Soriano Rodríguez, Mª Dolores; Marques Correia, L.; Rodríguez-Castellón, E.; López Nieto, José Manuel; Silveira Vieira, R. (Elsevier, 2020-03-01)

[EN] A family of Fe-based catalysts supported hollow silica mesospheres has been synthesized and tested in the catalytic partial oxidation of H2S to elemental sulfur at 170.180 degrees C, atmospheric pressure and under 300 ...
Heterogeneous Metal Catalysts: From Single Atoms to Nanoclusters and Nanoparticles

Liu, Lichen (Universitat Politècnica de València, 2019-10-02)

Las especies de metal con diferentes tamaños (átomos individuales, nanocristales y nanopartículas) muestran un comportamiento catalítico diferente para diversas reacciones catalíticas heterogéneas. Se ha demostrado en la ...
Metal organic frameworks as heterogeneous catalysts for the production of fine chemicals

Dhakshinamoorthy, Amarajothi; Opanasenko, Maksym; Cejka, Jiri; García Gómez, Hermenegildo (Royal Society of Chemistry, 2013)

[EN] This review focuses on the use of metal organic frameworks (MOFs) as catalysts for the synthesis of fine chemicals. While petrochemistry is characterized by gas phase reactions, in which MOFs cannot compete with robust ...
MIL-101 promotes the efficient aerobic oxidative desulfurization of dibenzothiophenes

Gómez Paricio, Adrián; Santiago Portillo, Andrea; Navalón Oltra, Sergio; Concepción Heydorn, Patricia; Alvaro Rodríguez, Maria Mercedes; García Gómez, Hermenegildo (Royal Society of Chemistry, 2016)

[EN] MIL-101 promotes aerobic oxidation in n-dodecane of dibenzothiophene (DBT) and its methyl-substituted derivatives to their corresponding sulfones with complete selectivity, without observation of the sulfoxide. DBT ...
One-pot deposition of gold on hybrid TiO2 nanoparticles and catalytic application in the selective oxidation of benzyl alcohol

Mehri, Afef; Kochkar, Hafedh; Berhault, Gilles; Cómbita Merchán, Diego Fernando; Blasco Lanzuela, Teresa (Elsevier, 2015-01-15)

[EN] One-pot deposition of Au onto TiO2 has been achieved through directly contacting gold (III) salt with nanosized functionalized TiO2 support initially obtained by sol-gel process using titanium isopropoxide and citric ...
Reflux Method as a Novel Route for the Synthesis of MoVTeNbOx Catalysts for Selective Oxidation of Propane to Acrylic Acid

Ramli, Irmawati; Botella Asuncion, Pablo; Ivars Barceló, Francisco; Meng, Woi Pei; Zawawi, Siti Murni Mohamad; Ahangar, Hossein Abbastabar; Hernández Morejudo, Selene; López Nieto, José Manuel (Elsevier, 2011-06-01)

[EN] This work reports the applicability of reflux to the synthesis of Mo-V-Te-Nb-O metal oxide catalysts for the first time. The well-formed and defined orthorhombic M1 phase, i.e. Te2M20O57 (M = Mo, V, Nb), was found to ...
Selective Oxidation of H2S to Sulfur over Vanadia Supported on Mesoporous Zirconium Phosphate Heterostructure

Soriano Rodríguez, Mª Dolores; Jimenez-Jimenez, J.; Concepción Heydorn, Patricia; Jimenez-Lopez, A.; Rodriguez-Castellon, E.; López Nieto, José Manuel (Elsevier, 2009-11-09)

Vanadium oxide supported on mesoporous zirconium phosphate catalysts has been synthesized, characterized and tested in the selective oxidation of H2S to sulfur. The nature of the vanadium species depends on the V-loading ...
Selective Oxidation of Methane into Methanol using Sub-Nanometre Copper Clusters: A Computational Study

Gallego Rodríguez, Mario (Universitat Politècnica de València, 2024-09-02)

[ES] Se investigó la reacción de metano a metanol (MTM) en zeolitas y zeotipos utilizando clústeres subnanométricos de cobre soportados usando como oxidante O2 y sin la intervención de moléculas de agua en todo momento. Para ...
Synthesis and Stabilization of Subnanometric Gold Oxide Nanoparticles on Multiwalled Carbon Nanotubes and their Catalytic activity

Alves, Leonor; Ballesteros, Belén; Boronat Zaragoza, Mercedes; Cabrero Antonino, Jose Ramón; Concepción Heydorn, Patricia; Corma Canós, Avelino; Correa-Duarte, Miguel Ángel; Mendoza, Ernest (American Chemical Society, 2011-06-02)

Small gold nanoclusters in a very narrow size distribution (1.1 ( 0.5 nm) have been stabilized onto multiwalled carbon nanotubes (MWCNT). Theoretical studies supported by XPS and 16O2 / 18O2 isotopic exchange experiments ...
Theoretical investigation of gold clusters supported on graphene sheets

Pulido, Ángeles; Boronat Zaragoza, Mercedes; Corma Canós, Avelino (Royal Society of Chemistry, 2011)

[EN] The structure and stabilization of a series of gold (Au-n) clusters (where n = 1, 5, 6, 19 and 39) supported on the perfect and defective (vacancy and/or N-doped) graphene sheets were investigated using a periodic DFT ...
Vanadium oxide supported on porous clay heterostructure for the partial oxidation of hydrogen sulphide to sulfur

Soriano Rodríguez, Mª Dolores; Cecilia, J. A.; Natoli, A.; Jimenez-Jimenez, J.; López Nieto, José Manuel; Rodriguez Castellon, Enrique (Elsevier, 2015-10-01)

Vanadium oxide supported on porous clay heterostructures (PCH) catalysts have been synthesized, characterized and evaluated in the selective oxidation of H2S to elemental sulfur. The catalysts were characterized by XRD, ...
Vanadium oxide-porous phosphate heterostructure catalysts for the selective oxidation of H2S to sulphur

Leon, Marta; Jimenez-Jimenez, Jose; Jimenez-Lopez, Antonio; Rodriguez-Castellon, Enrique; Soriano Rodríguez, Mª Dolores; López Nieto, José Manuel (Elsevier, 2010-06)

[EN] Vanadium oxide-containing mesoporous materials, based on a surfactant expanded zirconium phosphate with silica galleries into the interlayer space, named porous phosphate heterostructure (PPH), were prepared by using ...