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Browsing by Subject "Water splitting"

Now showing items 1-20 of 27

Cathodoluminescence characterization of Zno/Zns nanostructures anodized under hydrodynamic conditions

Sanz-Marco, Arturo; Sánchez Tovar, Rita; Montes Bajo, Miguel; Fernández Domene, Ramón Manuel; Garcia-Anton, Jose (Elsevier, 2018)

[EN] ZnO/ZnS nanostructures were successfully synthesized by a simple electrochemical anodization of zinc in a glycerol based electrolyte containing sulfide-ammonium fluoride. The influence of different hydrodynamic ...
Characterization and Comparison of WO3/WO3-MoO3 and TiO2/TiO2-ZnO Nanostructures for Photoelectrocatalytic Degradation of the Pesticide Imazalil

Cifre-Herrando, Mireia; Roselló-Márquez, Gemma; Navarro Gázquez, Pedro José; Muñoz-Portero, María-José; Blasco-Tamarit, E.; Garcia-Anton, Jose (MDPI AG, 2023-09)

[EN] Tungsten oxide (WO3) and zinc oxide (ZnO) are n-type semiconductors with numerous applications in photocatalysis. The objective of this study was to synthesize and characterize different types of nanostructures (WO3, ...
Characterization of Nanostructures containing WO3, MoO3, TiO2 and ZnO Photoelectrocatalytic Degradation of the Pesticide Imazalil

García Antón, José; Cifre Herrando, Mireia; Roselló Márquez, Gemma; Navarro-Gázquez, Pedro; Muñoz-Portero, María José; Blasco Tamarit, María Encarnación (Universitat Politecnica de Valencia, 2024-09-06)

The dataset contains the data that have been used to synthesize and characterize different types of nanostructures (WO3, WO3-Mo, TiO2, and TiO2-ZnO) for a comparison of hybrid and pure nanostructures to use them as a ...
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 ...
Controlled hydrodynamic conditions on the formation of iron oxide nanostructures synthesized by electrochemical anodization: Effect of the electrode rotation speed

Lucas-Granados, Bianca; Sánchez Tovar, Rita; Fernández Domene, Ramón Manuel; Garcia-Anton, Jose (Elsevier, 2017-01-15)

[EN] Iron oxide nanostructures are of particular interest because they can be used as photocatalysts in water splitting due to their advantageous properties. Electrochemical anodization is one of the best techniques to ...
Enhancement of photoelectrochemical activity for water splitting by controlling hydrodynamic conditions on titanium anodization

Sánchez Tovar, Rita; Fernández Domene, Ramón Manuel; García-García, D.M.; García Antón, José (Elsevier, 2015-03-31)

This work studies the electrochemical and photoelectrochemical properties of a new type of TiO2 nanostructure (nanosponge) obtained by means of anodization in a glycerol/water/NH4F electrolyte under controlled hydrodynamic ...
Estudio de fotocatalizadores basados en grafeno con defectos para la producción de combustibles solares

García Mulero, Ana (Universitat Politècnica de València, 2019-04-11)

[ES] La disminución de las reservas de combustibles fósiles y el calentamiento global presenta un futuro alarmante para nuestro planeta. Es por esto por lo que se ha puesto una especial atención a los combustibles solares ...
Evaluation of two ion-exchange membranes for the transport of tin in the presence of hydrochloric acid

García Gabaldón, Montserrat; Pérez-Herranz, Valentín; Ortega Navarro, Emma María (Elsevier, 2011-01-19)

The transport properties of two ion-exchange membranes in the presence of tin, as Sn(II) and Sn(IV), were investigated by chronopotentiometry and current-voltage curves. Since tin forms positively or negatively charged ...
Formation of ZnO nanowires by anodization under hydrodynamic conditions for photoelectrochemical water splitting

Batista-Grau, Patricia; Sánchez Tovar, Rita; Fernández Domene, Ramón Manuel; Garcia-Anton, Jose (Elsevier, 2020-01-15)

[EN] The present work studies the influence of hydrodynamic conditions (from 0 to 5000 rpm) during Zn anodization process on the morphology, structure and photoelectrocatalytic behavior of ZnO nanostructures. For this ...
Improvement in photocatalytic activity of stable WO3 nanoplatelet globular clusters arranged in a tree-like fashion: Influence of rotation velocity during anodization

Fernández Domene, Ramón Manuel; Sánchez Tovar, Rita; Lucas-Granados, Bianca; Garcia-Anton, Jose (Elsevier, 2016-07-15)

This study investigates the influence of controlled hydrodynamic conditions during anodization of tungsten (W) on the morphological, electrochemical and photocatalytic properties of a novel WO3 nanostructure: globular ...
Influence of electrolyte temperature on the synthesis of iron oxide nanostructures by electrochemical anodization for water splitting

Lucas-Granados, Bianca; Sánchez Tovar, Rita; Fernández Domene, Ramón Manuel; Garcia-Anton, Jose (Elsevier, 2018)

[EN] Iron oxide nanostructures are an attractive option for being used as photocatalyst in photoelectrochemical applications such as water splitting for hydrogen production. Nanostructures can be obtained by different ...
Layer-by-Layer Modification of Cation Exchange Membranes Controls Ion Selectivity and Water Splitting

Abdu, Said; Martí Calatayud, Manuel César; Wong, John Erik; García Gabaldón, Montserrat; Wessling, Matthias (American Chemical Society, 2014-02-12)

The present study investigates the possibility of inducing monovalent ion permselectivity on standard cation exchange membranes, by the layer-by-layer (LbL) assembly of poly(ethyleneimine) (PEI)/poly(styrenesulfonate) ...
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 ...
Natural alginate as a graphene precursor and template in the synthesis of nanoparticulate ceria/graphene water oxidation photocatalysts

Lavorato, Cristina; Primo Arnau, Ana María; Molinari, Raffaele; García Gómez, Hermenegildo (American Chemical Society, 2014-02)

Using alginate, a natural polysaccharide from algae, simultaneously as a graphene precursor and a templating agent for ceria nanoparticles, we have prepared a series of materials consisting of highly crystalline ceria ...
Nickel phosphonate MOF as efficient water splitting photocatalyst

Salcedo-Abraira, Pablo; Vilela, Sérgio M. F.; Babaryk, Artem A.; Cabrero-Antonino, Maria; Salles, Fabrice; Navalón Oltra, Sergio; García Gómez, Hermenegildo; Horcajada, Patricia; Gregorio, Pedro (Springer-Verlag, 2021-02)

[EN] A novel microporous two-dimensional (2D) Ni-based phosphonate metal-organic framework (MOF; denoted as IEF-13) has been successfully synthesized by a simple and green hydrothermal method and fully characterized using ...
Novel TiO2-WO3 self-ordered nanotubes used as photoanodes: Influence of Na2WO4 and H2O2 concentration during electrodeposition

Sánchez-Tovar, R.; Blasco-Tamarit, E.; Ibáñez-Arlandis, L.; Fernández Domene, R. M.; Roselló-Márquez, Gemma; Garcia-Anton, Jose (Elsevier, 2021-06-15)

[EN] Hybrid TiO2-WO3 nanostructures has been synthesized by electrochemical anodization under controlled hydrodynamic conditions followed by electrodeposition in the presence of different contents of Na2WO4 (5, 15 and 25 ...
Novel tree-like WO3 nanoplatelets with very high surface area synthesized by anodization under controlled hydrodynamic conditions

Fernández Domene, Ramón Manuel; Sánchez Tovar, Rita; Segura Sanchis, Elena; Garcia-Anton, Jose (Elsevier, 2016-02-15)

In the present work, a new WO3 nanostructure has been obtained by anodization in a H2SO4/NaF electrolyte under controlled hydrodynamic conditions using a Rotating Disk Electrode (RDE) configuration. Anodized samples were ...
Optimización de un dispositivo electroquímico de separación de oxígeno integrado en un reactor catalítico para la formación de hidrocarburos aromáticos.

Canovas Noguera, Juan Daniel (Universitat Politècnica de València, 2023-11-03)

[ES] El Trabajo de Fin de Máster "Optimización de un dispositivo electroquímico de separación de oxígeno integrado en un reactor catalítico para la formación de hidrocarburos aromáticos" está integrado dentro del proyecto ...
Oriented 2.0.0 Cu2O nanoplatelets supported on few-layers graphene as efficient visible light photocatalyst for overall water splitting

Mateo-Mateo, Diego; Esteve-Adell, Iván; Albero-Sancho, Josep; Primo Arnau, Ana Maria; García Gómez, Hermenegildo (Elsevier, 2017-02)

[EN] Cu2O nanoplatelets with preferential 2.0.0 facet orientation supported on few layers graphene were prepared as films in a single step by pyrolysis at 900 degrees C under inert atmosphere of Cu2+-chitosan precursor. ...
Photoelectrochemical characterization of anatase-rutile mixed TiO2 nanosponges

Fernández Domene, Ramón Manuel; Sánchez Tovar, Rita; Sanchez-Gonzalez, S.; García Antón, José (Elsevier, 2016-11-02)

This work studies the influence of using hydrodynamic conditions during anodization on the morphology and electrochemical properties of anatase/rutile mixed TiO2 nanotubes (Reynolds number, Re = 0) and nanosponges (Re > ...