A Simple and Rapid Method of Forming Double-Sided TiO2 Nanotube Arrays

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dc.citation.articleNumbere202200081
dc.citation.issueNumber7
dc.citation.journalTitleChemElectroChem
dc.citation.volumeNumber9
dc.contributor.authorConrad, Christian L.
dc.contributor.authorElias, Welman C.
dc.contributor.authorGarcia-Segura, Sergi
dc.contributor.authorReynolds, Michael A.
dc.contributor.authorWong, Michael S.
dc.contributor.orgNanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment
dc.date.accessioned2022-05-13T16:37:37Z
dc.date.available2022-05-13T16:37:37Z
dc.date.issued2022
dc.description.abstractHighly ordered TiO2 nanostructures, known as nanotube arrays (NTAs), exhibit potential in various energy, chemical sensing, and biomedical applications. Owing to its simplicity and high degree of control, titanium anodization serves as the prevailing NTA synthesis method. However, the practicality of this approach is marred by sluggish and inconsistent growth rates, on the order of 10 nm min−1. Growth rates strongly depend on the electrolyte conductivity, yet most reports neglect to consider this property as a measured and controllable parameter. Here, we have systematically determined a broad set of conditions (at 60 V applied potential, elevated temperatures) that allow researchers to fabricate NTAs quickly and simply. By modulating conductivity through variation of bulk electrolyte temperature and the controlled addition of several hydroxy acid species, we achieve consistent accelerated growth up to 10 times faster than traditional methods. We find that regulating the solution conductivity within a desired region (e. g., ∼800–1000 μS cm−1) enabled the fabrication of double-sided NTA layers of around 10 μm and 90 μm NTA in 10 and 180 min, respectively.
dc.identifier.citationConrad, Christian L., Elias, Welman C., Garcia-Segura, Sergi, et al.. "A Simple and Rapid Method of Forming Double-Sided TiO2 Nanotube Arrays." <i>ChemElectroChem,</i> 9, no. 7 (2022) Wiley: https://doi.org/10.1002/celc.202200081.
dc.identifier.doihttps://doi.org/10.1002/celc.202200081
dc.identifier.urihttps://hdl.handle.net/1911/112397
dc.language.isoeng
dc.publisherWiley
dc.rightsThis is an author's peer-reviewed final manuscript, as accepted by the publisher. The published article is copyrighted by Wiley.
dc.titleA Simple and Rapid Method of Forming Double-Sided TiO2 Nanotube Arrays
dc.typeJournal article
dc.type.dcmiText
dc.type.publicationpost-print
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