Effect of electrolyte agitation on anodic titanium dioxide (ATO) growth and its photoelectrochemical properties

2015
journal article
article
37
33
cris.lastimport.scopus2024-04-07T15:18:46Z
cris.lastimport.wos2024-04-10T00:51:36Z
dc.abstract.enNanoporous anodic titanium dioxide (ATO) layers were synthesized at 20 °C by a three-step anodization carried out at the constant voltage of 30 V in the electrolyte based on an ethylene glycol containing fluoride ions. The effect of stirring speed on the growth of anodic TiO2 layers was investigated in the range of 0–500 rpm. It was found that the thickness of grown oxide layer, and consequently, the rate of oxide formation depend directly on the stirring speed. The morphological characterizations – porosity, cell density, cell size, oxide thickness, percentage of defective cells and their arrangement in ATO layers were correlated with different electrolyte stirring speeds. The influence of ultrasound irradiation during ATO formation and extended time of third anodization on photoelectrochemical response of ATO electrodes was studied. Photoelectrochemical properties of received anodic oxide layers were measured in a 0.1 M KNO3 aqueous solution under the applied potentials of 0–1000 mV vs. SCE. The generated photocurrents were studied at the wavelength range of 300–400 nm. The highest values of generated photocurrents were observed at 350 nm. For all studied stirring speeds, photoconversion efficiencies, determined as incident photon-to-current efficiency (IPCE), were calculated.pl
dc.affiliationWydział Chemii : Zakład Chemii Fizycznej i Elektrochemiipl
dc.contributor.authorSyrek, Karolina - 162950 pl
dc.contributor.authorKapusta-Kołodziej, Joanna - 161446 pl
dc.contributor.authorJarosz, Magdalena - 116468 pl
dc.contributor.authorSulka, Grzegorz - 132161 pl
dc.date.accessioned2015-12-17T08:04:49Z
dc.date.available2015-12-17T08:04:49Z
dc.date.issued2015pl
dc.description.physical801-810pl
dc.description.volume180pl
dc.identifier.doi10.1016/j.electacta.2015.09.011pl
dc.identifier.eissn1873-3859pl
dc.identifier.issn0013-4686pl
dc.identifier.urihttp://ruj.uj.edu.pl/xmlui/handle/item/18375
dc.languageengpl
dc.language.containerengpl
dc.rights.licencebez licencji
dc.subtypeArticlepl
dc.titleEffect of electrolyte agitation on anodic titanium dioxide (ATO) growth and its photoelectrochemical propertiespl
dc.title.journalElectrochimica Actapl
dc.typeJournalArticlepl
dspace.entity.typePublication

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