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Listar por palabra clave "Oxides"

Mostrando ítems 1-15 de 15

A photophysical approach to investigate the photooxidation mechanism of pesticides: Hydroxyl radical versus electron transfer

Marín García, Mª Luisa; Lhiaubet, Virginie Lyria; Santos-Juanes Jordá, Lucas; Soler Escoda, Juan Miguel; Gomis Vicens, Juan; Arques Sanz, Antonio; Amat Payá, Ana María; Miranda Alonso, Miguel Ángel (Elsevier, 2011-03-14)

[EN] The role of hydroxyl radical in different solar photocatalytic processes, namely photo-Fenton, titanium dioxide-based oxidation and organic photocatalysis (triphenylpyrylium) has been investigated. Using a methodology ...
Aluminum Oxide Nanoparticles as Carriers and Adjuvants for Eliciting Antibodies from Non-immunogenic Haptens

Maquieira Catala, Ángel; Brun Sánchez, Eva María; Garcés García, Marta; Puchades Pla, Rosa (American Chemical Society, 2012)

[EN] Functionalized nanomaterials have applications yet to be discovered, especially in the biological field and, in particular, the in vivo production of antibodies. In this paper, we show that aluminum oxide nanoparticles ...
Combined investigation of bulk diffusion and surface exchange parameters of silver catalyst coated yttrium-doped BSCF membranes

Haworth, Patrick; Smart, Simon; Serra Alfaro, José Manuel; Diniz da Costa, Joe (Royal Society of Chemistry, 2012)

[EN] The combined effect of minor yttrium doping and silver catalyst deposition on the surface kinetics (kchem) and bulk diffusion (D-chem) of BSCF (Ba0.5Sr0.5Co0.8Fe0.2O3-d) perovskite membranes was explored using electrical ...
Compressibility systematics of calcite-type borates : An experimental and theoretical structural study on ABO3 (A = Al, Sc, Fe and In)

Santamaría Pérez, David; Gomis Hilario, Oscar; Sans, Juan Ángel; Ortiz, H. M.; Vegas, Ángel; Errandonea, Daniel; Ruiz-Fuertes, Javier; Martínez-García, Domingo; García-Domene, B.; Pereira, ALJ; Manjón Herrera, Francisco Javier; Rodríguez-Hernández, Placida; Muñoz, A.; Piccinelli, F.; Bettinelli, M.; Popescu, C. (American Chemical Society, 2014-02-27)

The structural properties of calcite-type orthoborates ABO(3) (A = Al, Fe, Sc, and In) have been investigated at high pressures up to 32 GPa. They were studied experimentally using synchrotron powder X-ray diffraction and ...
Control parameters on the fabrication of ZnO hollow nanocolumns

Cembrero Cil, Jesús; Busquets Mataix, David Jerónimo; Rayón Encinas, Emilio; Pascual Guillamón, Manuel; Pérez Puig, Miguel Angel; Marí Soucase, Bernabé (Elsevier, 2013-02)

[EN] The present work reports on the fabrication of hollow ZnO nanocolumns by a sequential combination of electrochemical deposition, chemical attack and regeneration. Initially, ZnO nanocolumns were deposited in two ...
Crystal structure of sinhalite MgAlBO4 under high pressure

Santamaría Pérez, David; Errandonea, Daniel; Gomis, O.; Sans Tresserras, Juan Ángel; Pereira, A. L. J.; Manjón Herrera, Francisco Javier; Popescu, Catalin; Rodríguez Hernández, Plácida; Muñoz, Alfonso (American Chemical Society, 2015-03-26)

We report on high-pressure angle-dispersive X-ray diffraction data up to 27 GPa for natural MgAlBO4 sinhalite mineral and ab initio total energy calculations. The experimental bulk modulus of sinhalite is B-0 = 171(3) GPa ...
Effect of the C-alpha substitution on the ketonic decarboxylation of carboxylic acids over m-ZrO2: the role of entropy

Oliver-Tomás, Borja; Gonell-Gómez, Francisco; Pulido, Angeles; Renz, Michael; Boronat Zaragoza, Mercedes (Royal Society of Chemistry, 2016)

[EN] The kinetics of the ketonic decarboxylation of linear and branched carboxylic acids over m-ZrO2 as a catalyst has been investigated. The same apparent activation energy is experimentally determined for the ketonic ...
Elastic and thermodynamic properties of alpha-Bi2O3 at high pressures: Study of mechanical and dynamical stability

Gomis, O.; Manjón, Francisco-Javier; Rodríguez-Hernández, Plácida; MUÑOZ, ALFONSO (Elsevier, 2019-01)

[EN] The elastic and thermodynamic properties of the monoclinic polymorph of bismuth oxide (alpha-Bi2O3); aka mineral bismite, have been theoretically investigated both at room pressure and under hydrostatic compression ...
Electrochemical properties of composite fuel cell cathodes for La5.5WO12−δ proton conducting electrolytes

Solis Díaz, Cecilia; Navarrete Algaba, Laura; Roitsch, Stefan; Serra Alfaro, José Manuel (Royal Society of Chemistry, 2012)

[EN] New composite cathodes for proton conducting solid oxide fuel cells (PC-SOFCs) based on the novel La5.5WO12-delta (LWO) electrolyte have been developed. First the applicability of LWO as a protonic electrolyte has ...
Experimental design applied to improving theeffect of bismuth oxide as a sintering aid for tin oxide

Sánchez-Rivera, María-José; Gozalbo, Ana; Pérez-Herranz, Valentín; Mestre, Sergio (Elsevier, 2018)

[ES] El óxido de estano¿ es un material ampliamente estudiado dada su gran variedad de aplicaciones. Sin embargo, debido a que sinteriza sin densificar, su procesado requiere la incorporación de promotores de la sinterización. ...
Exploring the applicability of solar driven photocatalytic processes to control inestation by zebra mussel

Bernabeu García, Antonio; Vicente Candela, Rafael; Peribañez Lopez, Miguel Angel; Arques Sanz, Antonio; Amat Payá, Ana María (Elsevier, 2011-07)

Dreissena polymorpha (zebra mussel) is an invasive freshwater bivalve mollusc that causes important technical and environmental problems. Titanium dioxide solar photocatalysis was checked for disinfestation of veligers of ...
High-pressure study of the behavior of mineral barite by X-ray diffraction

Santamaría-Pérez, D.; Gracia, L.; Garbarino, G.; Beltrán, A.; Chuliá-Jordán, R.; Gomis Hilario, Oscar; Errandonea, D.; Ferrer-Roca, Ch.; Martínez-García, D.; Segura, A. (American Physical Society, 2011-08-02)

In this paper, we report the angle-dispersive x-ray diffraction data of barite, BaSO 4, measured in a diamond-anvil cell up to a pressure of 48 GPa, using three different fluid pressure-transmitting media (methanol-ethanol ...
InBO3 and ScBO3 at high pressures: an ab initio study of elastic and thermodynamic properties

Gomis, O.; Ortiz, H. M.; Sans Tresserras, Juan Ángel; Manjón Herrera, Francisco Javier; Santamaría-Pérez, D.; Rodríguez-Hernández, P.; Muñoz, A. (Elsevier, 2016-11)

We have theoretically investigated the elastic properties of calcite-type orthoborates ABO(3) (A= Sc and In) at high pressure by means of ab initio total-energy calculations. From the elastic stiffness coefficients, we ...
Kinetic Study of Oxidative Dehydrogenation of Ethane over MoVTeNb Mixed-Oxide Catalyst

Valente, J.S.; Quintana-Solorzano, R.; Armendariz-Herrera, H.; Barragan-Rodriguez, G.; López Nieto, José Manuel (American Chemical Society, 2014-02-05)

[EN] A MoVTeNb multimetallic mixed oxide was studied for the oxidative dehydrogenation of ethane, a promising alternative for catalytic ethylene production. Lab-scale steady-state experimental reaction data were obtained ...
Optimizing Reflux Synthesis Method of Mo-V-Te-Nb mixed oxide Catalysts for Light Alkane Selective Oxidation

Massó Ramírez, Amada; Ivars-Barceló, Francisco; López Nieto, José Manuel (Elsevier, 2020-10-01)

[EN] The investigation here presented studies the effect of the synthesis temperature (from 80 to 110 degrees C) and the time (from 1 to 4 days) employed to precipitate catalyst precursors by reflux method, on the ...