Ethanol-based electrolyte for nanotubular anodic TiO2 formation
Source abstract
Abstract
Abstract We report fabrication of anodic titanium oxide nanotubes with rippled sidewalls using anodization of titanium foil in an ethanol-based electrolyte containing ammonium fluoride and water. The electrolyte was tested at 40 °C and at potential in the 30–60 V range. The internal diameter of nanotubes grows linearly from 88 nm for 30 V up to 124 nm for 50 V and next drops to 105 nm for 60 V. The thickness of anodic titanium oxide layer exceeds 1 μm. Presence of NH4F crystals in electrolyte is favorable for formation of nanotubes. The unusual shape of current curves during anodization was observed.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Anodic Oxide Films and Nanostructures · TiO2 Photocatalysis and Solar Cells · Advanced Photocatalysis Techniques
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References (21)
Show source-provided references
1. Ordered TiO2 nanotubes: the effect of preparation parameters on thephotocatalytic activity in air purification process10.1016/j.apcatb.2013.07.041 ↗
2. Self-ordering dual-layered honeycomb nanotubular titania: enhanced structural stability and energy storage capacity10.1016/j.apsusc.2016.12.222 ↗
3. TiO2 nanotubes: synthesis and applications10.1002/anie.201001374 ↗
4. A review of growth mechanism, structure and crystallinity of anodized TiO2 nanotubes10.1016/j.mser.2013.10.001 ↗
5. Titanium oxide nanotube arrays prepared by anodic oxidation10.1557/JMR.2001.0457 ↗
6. Anodic growth of self-organized anodic TiO2 nanotubes in viscous electrolytes10.1016/j.electacta.2006.07.021 ↗
7. Fabrication of ideally ordered anodic porous TiO2 by anodization of pretextured two-layered metals10.1016/j.elecom.2016.09.008 ↗
8. ImageJ, National Institute of Mental Health, Bethesda, Maryland, USA, http://rsb.info.nih.gov/ij.
9. http://periodic-table-of-elements.org/SOLUBILITY/ammonium_fluoride (Accessed 01.02.2018).
10. Solubilities of salt in ethylene gycol and in its mixture with water10.1021/ie50254a016 ↗
11. Formation mechanism of anodic titanium oxide in mixed electrolytes10.1016/j.materresbull.2017.08.041 ↗
12. Self-organized porous and tubular oxide layers on TiAl alloys10.1016/j.elecom.2007.07.013 ↗
13. Nanoporous alumina formed by self-organized two-step anodization of Ni3Al intermetallic alloy in citric acid10.1016/j.apsusc.2012.10.074 ↗
14. Influence of different fluoride containing electrolytes on the formation of self-organized titania nanotubes by Ti anodization10.1007/s10832-006-3904-0 ↗
15. Atkins · 2006 · 198
16. The influence of electrolyte composition on the growth of nanoporous anodic alumina10.1016/j.electacta.2016.06.076 ↗
17. 2005
18. http://www.rheosense.com/applications/viscosity/two-component-mixtures (Viscosity of Water-Ethanol and Water-Isopropyl Alcohol Mixtures (Accessed 01.02.2018).
19. Smooth anodic TiO2 nanotube10.1002/anie.200502781 ↗
20. The electrochemical oxide growth behaviour on titanium in acid and alkaline electrolytes10.1016/S1350-4533(01)00050-9 ↗
21. Dissociation of water during formation of anodic aluminum oxide10.1021/ja902267b ↗