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Listar por palabra clave "Anodization"

Mostrando ítems 1-20 de 22

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A simple method to fabricate high-performance nanostructured WO3 photocatalysts with adjusted morphology in the presence of complexing agents

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

[EN] The rich and complex chemistry of tungsten was employed to synthesize innovative WO3 nanoplatelets/nanosheets by simple anodization in acidic electrolytes containing different concentrations of complexing agents or ...
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 ...
Customized WO3 nanoplatelets as visible-light photoelectrocatalyst for the degradation of a recalcitrant model organic compound (methyl orange)

Fernández Domene, Ramón Manuel; Sánchez Tovar, Rita; Lucas-Granados, Bianca; García-Zamora, Carlos Samuel; Garcia-Anton, Jose (Elsevier, 2018-04-01)

[EN] WO3 nanoplatelets have been synthesized by electrochemical anodization in acidic electrolytes containing two different complexing agents: fluorides and hydrogen peroxide. The influence of the morphology and size of ...
Elimination of pesticide atrazine by photoelectrocatalysis using a photoanode based on WO3 nanosheets

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

[EN] The photoelectrocatalytic (PEC) degradation of a persistent and toxic herbicide, atrazine, has been investigated by using a novel and high-performance WO3 nanostructure in the form of nanosheets/nanorods as photoanode. ...
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 la degradación fotoelectrocatalítica del antibiótico de uso animal sulfapiridina mediante nanoestructuras de óxido de wolframio

Larena González, Claudia (Universitat Politècnica de València, 2019-09-04)

[ES] El objetivo del presente Trabajo Fin de Grado (TFG) es la degradación fotoelectrocatalítica del antibiótico de uso animal sulfapiridina utilizando nanoestructuras de óxido de wolframio (WO3). Dichas nanoestructuras ...
Estudio de la degradación fotoelectrocatalítica del disruptor endocrino dietilftalato usando nanoestructuras de WO3 como fotoánodos

Miguel Ramón, Carlos (Universitat Politècnica de València, 2021-10-21)

[ES] El objetivo del presente Trabajo Fin de Máster (TFM) es la eliminación del disruptor endocrino dietilftalato mediante degradación fotoelectrocatalítica utilizando fotoánodos basados en nanoestructuras de óxido de ...
Estudio de la eliminación del antibiótico trimetoprim mediante fotoelectrocatálisis usando fotoánodos basados en nanoestructuras de WO3

Miguel Ramón, Carlos (Universitat Politècnica de València, 2019-09-09)

[ES] El objetivo del presente Trabajo Fin de Grado (TFG) es la eliminación del antibiótico de uso animal trimetoprim mediante degradación fotoelectrocatalítica utilizando nanoestructuras de óxido de wolframio (WO3) como ...
Fabrication and Structural Studies of Porous Anodic Oxid Films on Pure Aluminium and Aluminium Alloy (AA 1100)

Verma, Naveen; Singh, Krishan Chander; Marí Soucase, Bernabé; Jitender (Royal Society of Chemistry, 2014)

[EN] Pure aluminium and aluminium alloy 1100 samples were anodized by one step and two step process. The foils were anodised in 0.3 M sulphuric acid solution at constant voltage of 25V and the temperature was maintained ...
Formation of anodic TiO2 nanotube or nanosponge morphology determined by the electrolyte hydrodynamic conditions

Sánchez Tovar, Rita; Lee, Kiyoung; García Antón, José; Schmuki, Patrik (Elsevier, 2013-01)

The present work studies the effect of hydrodynamic conditions on the growth of anodic TiO2 nanostructures on Ti in a glycerol/water/NH4F electrolyte. Parameter screening for fluoride content, anodization voltage and ...
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 annealing atmosphere on photoelectrochemical response of TiO2 nanotubes anodized under controlled hydrodynamic conditions

Blasco-Tamarit, E.; Solsona, B.; Sánchez-Tovar, R.; García-García, D.M.; Fernández Domene, R.M.; Garcia-Anton, Jose (Elsevier, 2021-09-15)

[EN] The influence of three annealing atmospheres (air, nitrogen and argon) and the use of controlled hydrodynamic conditions (from 0 to 5000 rpm) on morphological, structural, chemical and photoelectrochemical properties ...
Influence of annealing conditions on the photoelectrocatalytic performance of WO3 nanostructures

Roselló-Márquez, Gemma; Fernández Domene, Ramón Manuel; Sánchez Tovar, Rita; Garcia-Anton, Jose (Elsevier, 2020-05-01)

[EN] Nanostructured WO3 photoanodes have been synthesized by electrochemical anodization under controlled hydrodynamic conditions in acidic media in the presence of 0.05 M H2O2. Subsequently, samples have been subjected ...
Iron oxide nanostructures for photoelectrochemical applications: Effect of applied potential during Fe anodization

Lucas-Granados, Bianca; Sánchez Tovar, Rita; Fernández Domene, Ramón Manuel; Garcia-Anton, Jose (Elsevier, 2019-02-25)

[EN] In photoelectrochemistry, a suitable photoanode leading to high efficiencies in photocatalytic processes is a research challenge. Iron oxide nanostructures are promising materials to be used as photoanodes. In this ...
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 ...
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 > ...
Photoelectrochemical removal of chlorfenvinphos by using WO3 nanorods: Influence of annealing temperature and operation pH

Fernández Domene, Ramón Manuel; Roselló-Márquez, Gemma; Sánchez Tovar, Rita; Lucas-Granados, Bianca; Garcia-Anton, Jose (Elsevier, 2019-04-01)

[EN] A visible-light driven photoelectrochemical degradation process has been applied to a solution polluted with the organophosphate insecticide chlorfenvinphos. Different WO3 nanosheets/nanorods have been used as ...
Study of the annealing conditions and photoelectrochemical characterization of a new iron oxide bi-layered nanostructure for water splitting

Lucas-Granados, Bianca; Sánchez Tovar, Rita; Fernández Domene, Ramón Manuel; Garcia-Anton, Jose (Elsevier, 2016-08)

Iron oxide nanostructures have emerged as promising materials for being used as photocatalysts for hydrogen production due to their advantageous properties. However, their low carrier mobility and short hole diffusion ...