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Browsing by Subject "Hydrogen production"

Now showing items 1-19 of 19

Bioethanol Steam Reforming on Co/ITQ-18 Catalyst: Effect of the Crystalline Structure of the Delaminated Zeolite ITQ-18

Da Costa Serra, Javier Francisco; Chica, Antonio (Elsevier, 2011-03)

ITQ-18 delaminated zeolite has been used as Co support to synthesize steam reforming catalysts. The results obtained in the steam reforming of bioethanol indicate that a highly active and selective Co-based catalyst can ...
Bioethanol steam reforming on Ni-based modified mordenite. Effect of mesoporosity, acid sites and alkaline metals

Da Costa Serra, Javier Francisco; Navarro Ruiz, María Teresa; Rey Garcia, Fernando; Chica, Antonio (Elsevier, 2012-04)

Support plays an important role in the preparation of highly active and selective bioethanol steam reforming catalysts since it helps in the dispersion of metal particles and enhances its activity via metal-support ...
CARACTERIZACIÓN DE ELECTRODOS DE NÍQUEL DOPADOS CON NANOPARTÍCULAS DE ORO PARA LA OBTENCIÓN DE HIDRÓGENO

Torondel Díaz, Aaron Damián (Universitat Politècnica de València, 2021-10-06)

[ES] Hoy en día aún existen ciertos problemas para lograr la generación de hidrógeno que provenga de energías renovables, conocido como Hidrógeno Verde. Actualmente se busca mejorar los métodos de producción de hidrógeno ...
Caracterización de electrodos porosos de níquel dopados con nanopartículas de Pd para la producción de hidrógeno

Bujalance Calduch, Carlos (Universitat Politècnica de València, 2019-09-05)

[ES] La producción de hidrógeno como método de almacenamiento de energía está cobrando importancia sobretodo en combinación con las energías renovables. El hidrógeno es generado a partir de agua y energía eléctrica, por ...
Caracterización de electrodos porosos de níquel dopados con nanopartículas de Pd y Ag para la producción de hidrógeno

Navarro Díaz, Raúl (Universitat Politècnica de València, 2021-02-17)

[ES] En la actualidad, existe una dependencia elevada de los combustibles fósiles. El uso de dichos combustibles conlleva diversos problemas como la contaminación y el agotamiento de recursos. Para disminuir la dependencia ...
Catalysts based on Co-Birnessite and Co-Todorokite for the efficient production of hydrogen by ethanol steam reforming

Da Costa Serra, Javier Francisco; Chica, Antonio (Elsevier, 2018)

[EN] Two structured manganese oxides (Birnessite and Todorokite) containing Co have been studied in the steam reforming of ethanol. It has been found that both materials are active in the hydrogen production, exhibiting ...
Co and La supported on Zn-Hydrotalcite-derived material as efficient catalyst for ethanol steam reforming

Cerdá-Moreno, Cristina; Da Costa Serra, Javier Francisco; Chica, Antonio (Elsevier, 2019-05-17)

[EN] Four samples of Zn-hydrotalcite containing different amounts of Co (5, 10, 20, and 30 wt%) have been synthesized and tested in the steam reforming of ethanol. The best results were obtained with the sample containing ...
Descomposición catalítica del metano: análisis de reactores, catalizadores y condiciones experimentales

Sempere Díaz, Teresa (Universitat Politècnica de València, 2021-09-22)

[ES] La descarbonización del sector energético es un tema de vital importancia para prevenir un calentamiento global irreversible. Aunque las fuentes de energía renovables han sido el foco principal en las investigaciones ...
El hidrógeno como portador de energía: análisis de los métodos de producción, almacenamiento y distribución; de las aplicaciones y el potencial en Alemania

Moreno Corral, María de los Ángeles (Universitat Politècnica de València, 2020-10-13)

[ES] El sistema energético actual basado en combustibles fósiles y su consecuente calentamiento global y cambio climático han creado la necesidad de una total descarbonización del sistema. El objetivo de este proceso es ...
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 ...
Electrochemical recovery of zinc from the spent pickling baths coming from the hot dip galvanizing industry. Potentiostatic operation

Carrillo Abad, Jorge; García Gabaldón, Montserrat; Ortega Navarro, Emma María; Pérez-Herranz, Valentín (Elsevier, 2011-09)

An electrochemical reactor was developed to recover zinc from the spent pickling solutions coming from the hot dip galvanizing industry. These solutions mainly contain ZnCl2 and FeCl2 in aqueous HCl media. The effect of ...
Gas-Phase Photochemical Overall H2 S Splitting by UV Light Irradiation

Garcia-Baldovi, Hermenegildo; Albero-Sancho, Josep; Ferrer Ribera, Rosa Belén; Mateo-Mateo, Diego; Alvaro Rodríguez, Maria Mercedes; García Gómez, Hermenegildo (John Wiley & Sons, 2017)

[EN] Splitting of hydrogen sulfide is achieved to produce valueadded chemicals. Upon irradiation at 254 nm in the gas phase and in the absence of catalysts or photocatalysts at near room temperature, H2S splits into ...
Modelado de un sistema de power-to-hidrógeno basado en energía hidroeléctrica

Amezcua Medina, Joel Andrés (Universitat Politècnica de València, 2021-02-11)

[ES] El TFM a realizar consta del desarrollo de un modelo basado en la producción de hidrógeno mediante electrolisis de agua con membrana polimérica (PEM). Para ello, se va a realizar un modelo matemático teniendo en cuenta ...
Natural sepiolite promoted with Ni as new and efficient catalyst for the sustainable production of hydrogen by steam reforming of the biodiesel by-products glycerol

Menor-Valls, María; Sayas Valero, Salvador; Chica, Antonio (Elsevier, 2017)

[EN] Glycerol, a byproduct derived from the production of biodiesel, is currently in oversupply because of the increase of biodiesel production. One approach to alleviate this problem is to transform glycerol into valuable ...
Performance of a transmutation advanced device for sustainable energy application

Garcia Hernandez, Carlos Rafael; Rosales, J.; García Fajardo, Laura; Pérez-Navarro Gómez, Ángel; Escrivá, A.; Abánades, A. (Elsevier, 2011-11)

[EN] Preliminary studies have been performed to design a device for nuclear waste transmutation and hydrogen generation based on a gas-cooled pebble bed accelerator driven system, TADSEA (Transmutation Advanced Device for ...
Reformado catalítico de residuos alcohólicos procedentes de la industria vitivinícola. Estudio comparativo del reformado con vapor de agua utilizando catalizadores de Co-La-Ce soportados

Maestro Cuadrado, Sergio (Universitat Politècnica de València, 2021-10-21)

[ES] El desarrollo económico mundial, así como la cada vez más cercana escasez de combustibles fósiles, los cuales han supuesto durante los últimos siglos la principal fuente de energía, está encaminando a la comunidad ...
Valorization of alcoholic wastes from the vinery industry to produce H2

Hernández Soto, María Consuelo; Da Costa Serra, Javier Francisco; Carratalá, J.; Beneito, R.; Chica, Antonio (Elsevier, 2019-04-19)

[EN] This paper focuses on the development of active and stable catalysts for the steam reforming of alcoholic wastes. Two catalysts with high activity in the steam reforming of ethanol have been studied in the steam ...
Vapor-Phase Photocatalytic Overall Water Splitting Using Hybrid Methylammonium Copper and Lead Perovskites

García, Teresa; García-Aboal, Rocío; Albero-Sancho, Josep; Atienzar Corvillo, Pedro Enrique; García Gómez, Hermenegildo (MDPI AG, 2020-05)

[EN] Films or powders of hybrid methylammonium copper halide perovskite exhibit photocatalytic activity for overall water splitting in the vapor phase in the absence of any sacrificial agent, resulting in the generation ...
Visible light photocatalytic activity for hydrogen production from water-methanol mixtures of open-framework V-doped mixed-valence titanium phosphate

Serra, Marco; García Baldoví, Hermenegildo; Albarracín Sánchez, Ferran; García Gómez, Hermenegildo (Elsevier, 2016-04)

[EN] Titanium dioxide is the most widely used photocatalyst for hydrogen production from water. Its main limitation consists in the lack of photocatalytic activity under visible light irradiation. One strategy to overcome ...