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Listar por palabra clave "Solar fuels"

Mostrando ítems 1-19 de 19

3D Structured Graphenes as (Photo)Catalysts

García Mulero, Ana (Universitat Politècnica de València, 2023-03-20)

[ES] En la actualidad, el elevado consume energético y el aumento de la concentración de CO2 en la atmósfera han hecho necesaria la búsqueda de nuevas opciones para los procesos actuales. Una respuesta ha sido el aprovechamiento ...
Constrasting photocatalytic activity of commercial TiO2 samples for hydrogen generation

Montes Navajas, Pedro Manuel; Serra, Marco; Corma Canós, Avelino; García Gómez, Hermenegildo (Elsevier, 2014-04-15)

series of 20 commercial titanium dioxide samples, including Evonik P-25, Millenium, Huntsman,Crenox, Kronnos or Hombikat, have been tested as photocatalysts for hydrogen generation from wateror water/methanol mixtures under ...
Graphene supported NiO/Ni nanoparticles as efficient photocatalyst for gas phase CO2 reduction with hydrogen

Mateo-Mateo, Diego; Albero-Sancho, Josep; García Gómez, Hermenegildo (Elsevier, 2018-05)

[EN] The photocatalytic activity of NiO/Ni nanoparticles (NPs) supported on defective graphene (NiO/Ni-G) has been tested for the photoassisted CO2 reduction with H-2. NiO/Ni-G was prepared by H-2 reduction of NiCl2 adsorbed ...
Graphene-Based Materials as Efficient Photocatalysts for Water Splitting

Albero-Sancho, Josep; Mateo-Mateo, Diego; García Gómez, Hermenegildo (MDPI AG, 2019-03-01)

[EN] Photocatalysis has been proposed as one of the most promising approaches for solar fuel production. Among the photocatalysts studied for water splitting, graphene and related materials have recently emerged as attractive ...
Hydrogenation of CO2 on Nickel-Iron Nanoparticles Under Sunlight Irradiation

Puga, Alberto V.; Corma Canós, Avelino (Springer-Verlag, 2018)

[EN] Nickel-iron oxide nanoparticles were prepared by a simple mixed oxalate precursor decomposition method and used as catalysts for the sunlight-promoted CO2 hydrogenation reaction. The composition of the NiyFe1-yOx ...
Influence of the irradiation wavelength on the photocatalytic activity of Au-Pt nanoalloys supported on TiO2 for hydrogen generation from water

Montes Navajas, Pedro Manuel; Serra, Marco; García Gómez, Hermenegildo (Royal Society of Chemistry, 2013)

[EN] Seven samples of P25 titania containing Au Pt nanoalloys at constant total metal loading (0.25% wt),very similar particle size (1.5 nm) and different proportions of Pt (0.0, 22.8, 27.8, 35.0, 50.0, 69.0 and 100.0% wt) ...
Light-Promoted Hydrogenation of Carbon Dioxide¿An Overview

Puga Vaca, Alberto (Springer Verlag (Germany), 2016-09)

[EN] Hydrogenation of carbon dioxide is considered as a viable strategy to generate fuels while closing the carbon cycle (heavily disrupted by the abuse in the exploitation of fossil resources) and reducing greenhouse gas ...
Metal-Organic Frameworks as Heterogenous Photocatalysts for the Production of Solar Fuels

Cabrero Antonino, María (Universitat Politècnica de València, 2021-11-09)

[ES] La presente tesis doctoral se ha basado en el estudio del uso de MOFs como fotocatalizadores para la producción de combustibles solares. Específicamente, los fotocatalizadores basados en MOF se han utilizado para la ...
N-doped defective graphene decorated by strontium titanate as efficient photocatalyst for overall water splitting

Mateo-Mateo, Diego; Garcia-Mulero, Ana; Albero-Sancho, Josep; García Gómez, Hermenegildo (Elsevier, 2019-09-05)

[EN] This manuscript reports the synergic effect for overall water splitting of N-doped defective graphenes obtained from the pyrolysis of biomass wastes, upon deposition at 1 wt% of Al-doped SrTiO3 containing RhCrOx ...
Open-Framework Chalcogenide Materials - from isolated clusters to highly ordered structures - and their photocalytic applications

Silva-Gaspar, Beatriz; Martinez-Franco, R.; Pirngruber, G.; Fécant, A.; DÍAZ MORALES, URBANO MANUEL; Corma Canós, Avelino (Elsevier, 2022-02-15)

[EN] Photocatalytic processes are regarded as a sustainable and environmental-friendly way to attenuate mankind's strong dependence on fossil fuels, which is the main responsable for high pollution levels in our planet. ...
P-doped graphene obtained by pyrolysis of modified alginate as a photocatalyst for hydrogen generation from water-methanol mixtures

Latorre Sánchez, Marcos; Primo Arnau, Ana María; García Gómez, Hermenegildo (Wiley-VCH Verlag, 2013-11-04)

The right dope: Phosphorus-doped graphene was obtained by the pyrolysis of natural alginate that contained H2PO4− at 900 °C. This material catalyzes the generation of H2 from a water/methanol mixture upon irradiation with ...
Photocatalytic activity of Cu2O supported on multi layers graphene for CO2 reduction by water under batch and continuous flow

Hurtado, Lourdes; Natividad, Reyna; García Gómez, Hermenegildo (Elsevier, 2016)

[EN] The photocatalytic activity of Cu2O supported on multi-layers graphene for CO2 reduction by water was studied under two hydrodynamic environments, in a slurry batch reactor and in a capillary reactor with the catalyst ...
Photocatalytic CO2 reduction to methanol: How can the dilemma be solved?

García-Baldoví, Alberto; Asiri, Abdullah M.; García Gómez, Hermenegildo (Elsevier, 2023-06)

[EN] In the context of the upcoming hydrogen technology, methanol can play a crucial role as liquid hydrogen organic carrier and as energy vector. However, for this new role, methanol has to be obtained through a CO2-neutral ...
Photocatalytic CO2 reduction using non-titanium metal oxides and sulfides

Navalón Oltra, Sergio; Dhakshinamoorthy, Amarajothi; Alvaro Rodríguez, Maria Mercedes; García Gómez, Hermenegildo (Wiley-VCH Verlag, 2013-04)

[EN] Titanium dioxide (TiO2) is by far the most widely used photocatalyst both for the degradation of pollutants and in the field of renewable energies for the production of solar fuels. However, TiO2 has strong limitations ...
Photocatalytic Water Splitting Promoted by 2D and 3D Porphyrin Covalent Organic Polymers Synthesized by Suzuki-Miyaura Carbon-Carbon Coupling

Nóvoa-Cid, María; Melillo, Arianna; Ferrer Ribera, Rosa Belén; Alvaro Rodríguez, Maria Mercedes; Garcia-Baldovi, Hermenegildo (MDPI AG, 2022-09)

[EN] This work deals with the synthesis of metal-free and porphyrin-based covalent organic polymers (COPs) by the Suzuki-Miyaura coupling carbon-carbon bond forming reaction to study the photocatalytic overall water splitting ...
Porous Single-Crystal-Based Inorganic Semiconductor Photocatalysts for Energy Production and Environmental Remediation: Preparation, Modification, and Applications

Niu, Jinan; Albero-Sancho, Josep; Atienzar Corvillo, Pedro Enrique; García Gómez, Hermenegildo (John Wiley & Sons, 2020-04)

[EN] Semiconductor photocatalytic and photovoltaic performance depends on crystallinity and surface area to a large extent. One strategy that has recently emergyed to improve semiconductor photoresponse efficiency is their ...
Solar light photocatalytic CO2 reduction: general considerations and selected bench-mark photocatalysts

Neatu, Stefan; Maciá Agulló, Juan Antonio; García Gómez, Hermenegildo (MDPI, 2014-04)

[EN] The reduction of carbon dioxide to useful chemicals has received a great deal of attention as an alternative to the depletion of fossil resources without altering the atmospheric CO2 balance. As the chemical reduction ...
Temperature Dependence of Solar Light Assisted CO2 Reduction on Ni Based Photocatalyst

Albero Sancho, Josep; García Gómez, Hermenegildo; Corma Canós, Avelino (Springer Verlag (Germany), 2016-05)

Methanation of CO2 by H-2 can be in the future an important reaction to store the surplus of renewable electricity during production peaks. The catalytic thermal CO2 methanation (the Sabatier reaction) can be carried out ...
Visible-ligth photocatalytic conversions of carbon monoxide to methane by nickel (II) oxide

Sastre Calabuig, Francesc; Corma Canós, Avelino; García Gómez, Hermenegildo (Wiley-VCH Verlag, 2013-12-02)

Solar Fuels: Different n- and p-type semiconductors have been investigated for sustainable solar fuel production. p-Type semiconductors, such as NiO, Fe3O4, Co3O4, and CuO, are able to reduce carbon monoxide by water or ...