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Listar por palabra clave "Cobalt"

Mostrando ítems 1-20 de 26

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A new selective fluorogenic probe for trivalent cations

Barba Bon, Andrea; Costero, Ana; Gil Grau, Salvador; Parra Álvarez, Margarita; Soto Camino, Juan; Martínez Mañez, Ramón; Sancenón Galarza, Félix (Royal Society of Chemistry, 2012)

[EN] A new selective chromo-fluorogenic probe for Fe 3+, Cr 3+ and Al 3+ is reported. Detection limits are in the ¿M range and the fluorogenic sensing ability could be observed by the naked eye when illuminated with UV-light. ...
Catalizadores heterogéneos de rodio y cobalto para la hidroformilación de olefinas y la reacción de evolución del hidrógeno

Galdeano Ruano, Carmen Piedad (Universitat Politècnica de València, 2024-03-10)

[ES] La presente tesis doctoral se centra en la investigación y desarrollo de catalizadores avanzados con aplicaciones en la industria química. Desde la síntesis de nanopartículas de Rh2P hasta la exploración de catalizadores ...
Chemoenzymatic Synthesis of 5-Hydroxymethylfurfural (HMF) Derived Plasticizers by Coupling HMF Reduction with Enzymatic Esterification

Arias-Carrascal, Karen Sulay; Carceller-Carceller, Jose Miguel; Climent Olmedo, María José; Corma Canós, Avelino; Iborra Chornet, Sara (John Wiley & Sons, 2020-04-07)

[EN] Biobased plasticizers, as substitutes for phthalates, have been synthesized from 5-hydroxymethylfurfural (HMF) and carboxylic acids (or esters) through a chemoenzymatic cascade process that involves as its first ...
Cobalt Catalysts for Alkene Hydrosilylation under Aerobic Conditions without Dry Solvents or Additives

Gutiérrez-Tarriño, Silvia; Concepción Heydorn, Patricia; Oña-Burgos, Pascual (John Wiley & Sons, 2018-12-06)

[EN] Alkene hydrosilylation is typically performed with Pt catalysts, but inexpensive base-metal catalysts would be preferred. Here, we report a simple method for the use of air-stable cobalt catalysts for anti-Markovnikov ...
Cobalt-Based Metal Organic Frameworks as Solids Catalysts for Oxidation Reactions

Dhakshinamoorthy, Amarajothi; Montero-Lanzuela, Eva; Navalón Oltra, Sergio; García Gómez, Hermenegildo (MDPI AG, 2021-01)

[EN] Metal organic frameworks (MOFs) are porous crystalline solids whose frameworks are constituted by metal ions/nodes with rigid organic linkers leading to the formation of materials having high surface area and pore ...
Cu and Co modified beta zeolite catalysts for the trichloroethylene oxidation

Blanch Raga, Neus; Palomares Gimeno, Antonio Eduardo; Martínez Triguero, Luis Joaquín; Valencia Valencia, Susana (Elsevier, 2016-06-15)

[EN] In this work we have studied for the first time the catalytic activity for the oxidation of trichloroethylene (TCE) of Cu and Co beta zeolites. The results show that they are active and selective towards CO2, obtaining ...
Desarrollo de catalizadores de cobalto polinucleares y multifuncionales para la activación de moléculas pequeñas

Gutiérrez Tarriño, Silvia (Universitat Politècnica de València, 2021-09-02)

[ES] La presente tesis doctoral se enmarca en el ámbito de la Química Sostenible, en el cual se identifica la catálisis como una de las herramientas más importantes para su aplicación. En este sentido, en esta tesis doctoral, ...
Determining the characteristics of a Co-zeolite to be active for the selective catalytic reduction of NOx with hydrocarbons

Palomares Gimeno, Antonio Eduardo; Franch Martí, Cristina; Corma Canós, Avelino (Elsevier, 2011-11-01)

The aim of this work is to study the activity, for the selective catalytic reduction (SCR) of NOx with hydrocarbons, of different containing cobalt zeolites, with different typologies and compositions. It has been found ...
Efecto del precursor y del promotor en catalizadores de cobalto para la hidrogenación de co2 a metano

Jaunarena González, Daniela Alejandra (Universitat Politècnica de València, 2024-11-04)

[ES] El dióxido de carbono es uno de los principales gases de efecto invernadero, y la creciente preocupación por el cambio climático ha impulsado el desarrollo de nuevas tecnologías para aprovechar el CO2 y reducir la ...
Electrochemical characterization of a NiCo/Zn cathode for hydrogen generation

Herraiz-Cardona, Isaac; Ortega Navarro, Emma María; Vázquez-Gómez, Lourdes; Pérez-Herranz, Valentín (PERGAMON-ELSEVIER SCIENCE LTD, 2011-09)

[EN] Hydrogen is considered to be the most promising candidate as a future energy carrier. One of the most used technologies for the electrolytic hydrogen production is alkaline water electrolysis. However, due to the high ...
Estudio de la actividad catalítica del cobalto en disolución acuosa

Duarte Alvarado, Victoria (Universitat Politècnica de València, 2021-07-30)

[ES] El agua es de vital importancia para el sostenimiento de los ecosistemas, la vida de los seres vivos y el desarrollo de las actividades humanas, y cada vez se sobrepasan más los límites de su contaminación, debido ...
High doses of cobalt inhibited hair follicle development in Rex Rabbits

Liu, L.; Gao, Q.; Wang, C.; Fu, Z.; Wang, K.; Li, F. C. (Universitat Politècnica de València, 2019-12-23)

[EN] An experiment was conducted to investigate the effect of cobalt supplementation on hair follicle development in rabbits. Rex rabbits (30-d-old, n=180) were divided randomly into five equal treatment groups: rabbits ...
Hydrothermal Synthesis of Ruthenium Nanoparticles with a Metallic Core and a Ruthenium Carbide Shell for Low-Temperature Activation of CO2 to Methane

Cored-Bandrés, Jorge; Garcia-Ortiz, Andrea; Iborra Chornet, Sara; Climent Olmedo, María José; Liu, Lichen; Chuang, Cheng-Hao; Chan, Ting-Shan; Escudero, Carlos; Concepción Heydorn, Patricia; Corma Canós, Avelino (American Chemical Society, 2019-12-11)

[EN] Ruthenium nanoparticles with a core-shell structure formed by a core of metallic ruthenium and a shell of ruthenium carbide have been synthesized by a mild and easy hydrothermal treatment. The dual structure and ...
In situ generation of Co(II) by use of a solid-phase reactor in an FIA assembly for the spectrophotometric determination of penicillamine

Gómez-Taylor Corominas, B.; Pferzschner, Julia; Catalá Icardo, Mónica; Lahuerta Zamora, L.; Martínez Calatayud, J. (Elsevier, 2005-09-01)

[EN] A flow injection analysis (FIA) manifold for the determination of penicillamine in pharmaceutical preparations is proposed. The manifold includes a solid-phase reactor for the in situ production of the derivatizing ...
In vivo and in vitro biocompatible alginate film crosslinked with Ca2+ and Co2+ manifests antiviral, antibacterial and anticancer activity

Cano-Vicent, Alba; Martínez-Agut, Andrea; Tuñón-Molina, Alberto; Bakshi, Hamid; Sabater i Serra, Roser; Alfagih, Iman M.; Serrano-Aroca, Ángel; Tambuwala, Murtaza M. (Elsevier, 2023)

[EN] Alginate crosslinked with calcium cations is a promising hydrogel for biomedical applications as it is non-toxic, has suitable mechanical properties and is insoluble in water. Cobalt has been shown to possess antibacterial ...
Microwave calorimetry using X-rays

Nicula, R.; Stir, M.; Wurm, A.; Catalá Civera, José Manuel; Ishizaki, K.; Vaucher, S.; Zhuravlev, E.; Schick, C. (Elsevier, 2011-11-10)

An alternative approach for microwave calorimetry is proposed which relies on the synchrotron radiation powder diffraction technique as well as on the Grüneisen formalism for the analysis of thermal expansion. Cobalt was ...
Optimization of SOFC Composite Cathodes Based on LSM and Doped Cerias Ce0.8Ln0.2O2 (Ln = Gd, Er, Tb and Pr)

Navarrete Algaba, Laura; Balaguer Ramírez, María; Vert Belenguer, Vicente Bernardo; Serra Alfaro, José Manuel (Electrochemical Society, 2016)

[EN] Composites made of La0.8Sr0.2MnO3-delta (LSM) and lanthanide doped ceria (Ce(0.8)Ln(0.2)O(2-delta), Ln = Gd, Er, Tb and Pr) have been proposed as robust and high-performing solid oxide fuel cell cathodes. The addition ...
Ozone and peroxymonosulfate as oxidants in water treatments for disinfection by-products control or pollutant degradation

Bernat Quesada, Francisco (Universitat Politècnica de València, 2021-10-18)

[ES] El agua es esencial para la vida. La presente Tesis ha estudiado el uso de ozono y peroximonosulfato como oxidantes en tratamientos de agua para el control de subproductos de desinfección o degradación de contaminantes. ...
Rational design of a new class of heterobimetallic molecule-based magnets: Synthesis, crystal structures, and magnetic properties of oxamato-bridged M 3M2 (M = LiI and MnII; M = NiII and CoII) open-frameworks with a three-dimensional honeycomb architecture

Cangussu, D.; Pardo, E.; Dul, M. C.; Lescouëzec, R.; Herson, P.; Journaux, Y.; Pedroso, E. F.; Pereira, C. L. M.; Stumpf, H. O.; Muñoz, M. C.; Ruiz-García, R.; Cano, J.; Julve, M.; Lloret, F. (Elsevier, 2008-09-01)

[EN] Two new series of oxamato-bridged heterobimetallic coordination networks of general formula Li-5[Li3M2(mpba)(3)(H2O)(6)] center dot 31H(2)O [M= Ni-II (1a) and Co-II (1b)] and Li-2[Mn3M2(mpba)(3)(H2O)(6)] center dot ...
Structural, promotion and metal-support interaction effects in Co/TiO2 catalysts for Fischer-Tropsch synthesis

Bertella, Francine (Universitat Politècnica de València, 2018-09-10)

La presente tesis doctoral está centrada en la investigación de los parámetros estructurales que determinan las propiedades catalíticas en la síntesis de Fischer-Tropsch (SFT) de catalizadores de cobalto soportados en TiO2. ...