6533b832fe1ef96bd129a436
RESEARCH PRODUCT
Electrochemical formation of novel TiO2-ZnO hybrid nanostructures for photoelectrochemical water splitting applications
Rita Sánchez-tovarRita Sánchez-tovarE. Blasco-tamaritR.m. Fernández-domeneM. Villanueva-pascualJosé García-antónsubject
Materials scienceNanostructurechemistry.chemical_elementHybrid nanostructures02 engineering and technology010402 general chemistryElectrochemistry01 natural sciencesINGENIERIA QUIMICAchemistry.chemical_compoundsymbols.namesakeZinc oxideMaterials ChemistryDiòxid de titaniSpectroscopyPhotocurrentNanoestructuresSurfaces and InterfacesGeneral Chemistry021001 nanoscience & nanotechnologyCondensed Matter Physics0104 chemical sciencesSurfaces Coatings and FilmsChemical engineeringchemistryTitanium dioxidesymbolsWater splittingTitanium dioxide0210 nano-technologyRaman spectroscopyPhotoelectrochemical water splittingTitaniumdescription
[EN] In this study, hybrid ZnO-TiO2 nanostructures have been synthesised by means of a simple electrochemical anodisation of titanium and subsequently ZnO electrodeposition. The influence of Zn(NO3)(2) concentration and temperature during the electrodeposition process was evaluated. Different techniques were used to analyse the synthesised nanostructures, notably Field Emission Scanning Electron Microscopy (FE-SEM) with Energy-dispersive X-ray spectroscopy (EDX) and Confocal Microscopy with Raman spectroscopy coupled with an Atomic Force Microscope. Photoelectrochemical water splitting tests were also performed at the hybrid nanostructures. According to the results, the photoelectrochemical response of the specimens increases with the addition of ZnO, besides the hybrid nanostructures obtained at 25 degrees C and using a Zn(NO3)(2) concentration of 1 mM showed photocurrent densities 80% higher than the ones obtained for TiO2 nanotubes. Analysis of Variance of the data confirms the obtained results.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2020-01-01 |