6533b85dfe1ef96bd12be9c5

RESEARCH PRODUCT

Photoelectrochemical characterization of anatase-rutile mixed TiO2 nanosponges

R.m. Fernández-domeneRita Sánchez-tovarJosé García-antónS. Sánchez-gonzález

subject

AnataseMaterials scienceScanning electron microscopeAnalytical chemistryEnergy Engineering and Power Technology02 engineering and technologyAnatase/rutile mixed TiO2010402 general chemistry01 natural sciencesINGENIERIA QUIMICAMicroscopyWater splittingSpectroscopyRenewable Energy Sustainability and the EnvironmentAnodizingHidrodinàmica021001 nanoscience & nanotechnologyCondensed Matter Physics0104 chemical sciencesDielectric spectroscopyHydrodynamic conditionsElectroquímicaFuel TechnologyRutileMott-Schottky analysisWater splittingAnodization0210 nano-technologyElectrochemical impedance spectroscopy

description

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 > 0). To this purpose different techniques were used, such as: microscopy techniques (Field-Emission Scanning Electron Microscope, FE-SEM, and Confocal Laser-Raman Spectroscopy), Electrochemical Impedance Spectroscopy (EIS), Mott Schottky (MS) analysis and photoelectrochemical water splitting tests. This investigation demonstrates that the morphology of TiO2 nanostructures may be greatly affected due to the hydrodynamic conditions and it can be adjusted in order to increase the efficiency for energy and environmental applications. (C) 2016 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

yearjournalcountryeditionlanguage
2016-01-01
10.1016/j.ijhydene.2016.08.012https://hdl.handle.net/10550/77020