Digitální knihovnaUPCE
 

Influence of the Ti microstructure on anodic self-organized TiO2 nanotube layers produced in ethylene glycol electrolytes

ČlánekOtevřený přístuppeer-reviewedpostprint
dc.contributor.authorMacák, Jan M.
dc.contributor.authorJarošová, Markéta
dc.contributor.authorJäger, Aleš
dc.contributor.authorSopha, Hanna Ingrid
dc.contributor.authorKlementová, Mariana
dc.date.accessioned2016-04-13T07:53:54Z
dc.date.available2016-04-13T07:53:54Z
dc.date.embargo2016-09-03
dc.date.issued2016
dc.description.abstractThe relationship between the microstructure of Ti substrates and the anodic growth of self-organized TiO2 nanotube layers obtained upon their anodization in the ethylene glycol based electrolytes on these substrates is reported for the first time. Polished Ti sheets with mirror-like surface as well as unpolished Ti foils were considered in this work. Grains with a wide range of crystallographic orientations and sizes were revealed by Electron Backscatter Diffraction (EBSD) and correlated with nanotube growth on both types of substrates. A preferred grain orientation with [0 0 0 1] axis perpendicular to the surface was observed on all substrates. Surfaces of all substrates were anodized for 18 h in ethylene glycol electrolytes containing 88 mM NH4F and 1.5% water and thoroughly inspected by SEM. By a precise comparison of Ti substrates before and after anodization, the uniformity of produced self-organized TiO2 nanotube layers was evaluated in regard to the specific orientation of individual grains. Grains with [0 0 0 1] axis perpendicular to the surface turned out to be the most growth-promoting orientation on polished substrates. No orientation was found to be strictly growth-retarding, but sufficient anodization time (24 h) was needed to obtain uniform nanotube layers on all grains without remnant porous initial oxide. In contrast with polished Ti sheets, no specific orientation was found to significantly promote or retard the nanotube growth in the case of unpolished Ti foils. Finally, the difference between the average nanotube diameters of nanotubes grown on various grains was investigated showing non-negligible differences in the diameter for different grain orientations and substrates.cze
dc.formatp. 607-612eng
dc.identifier.doi10.1016/j.apsusc.2016.03.012
dc.identifier.issn0169-4332
dc.identifier.scopus2-s2.0-84961223618
dc.identifier.urihttps://hdl.handle.net/10195/61977
dc.language.isoeng
dc.peerreviewedyeseng
dc.project.IDEC/H2020/638857/EU/Towards New Generation of Solid-State Photovoltaic Cell: Harvesting Nanotubular Titania and Hybrid Chromophores/CHROMTISOL
dc.publicationstatuspostprinteng
dc.publisherElseviercze
dc.relation.ispartofApplied Surface Science. 2016, vol. 371
dc.relation.publisherversionhttp://www.sciencedirect.com/science/article/pii/S0169433216304482
dc.rightsAttribution-NonCommercial-NoDerivs 4.0 Czech Republic*
dc.rightsembargoedAccesseng
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/cz/*
dc.subjecttitaniumeng
dc.subjectanodizationeng
dc.subjecttitanium dioxideeng
dc.subjectnanotubeseng
dc.subjectEBSDeng
dc.titleInfluence of the Ti microstructure on anodic self-organized TiO2 nanotube layers produced in ethylene glycol electrolyteseng
dc.typeArticleeng

Soubory

Původní svazek

Nyní se zobrazuje 1 - 1 z 1
Náhled
Název:
Macak et al. ASS accepted for library_cc.pdf
Velikost:
772.02 KB
Formát:
Adobe Portable Document Format
Popis:
postprint

Licence svazku

Nyní se zobrazuje 1 - 1 z 1
Náhled není k dispozici
Název:
license.txt
Velikost:
135 B
Formát:
Item-specific license agreed upon to submission
Popis: