Synthesis and applications of electrochemically self-assembled titania nanotube arrays

Rani, Sanju; Roy, Somnath C.; Paulose, Maggie; Varghese, Oomman K.; Mor, Gopal K.; Kim, Sang-Hoon; Yoriya, Sorachon; LaTempa, Thomas J.; Grimes, Craig A.

doi:10.1039/b924125f

Cited by 251 publications

(182 citation statements)

References 103 publications

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“…6 There has been a large number of papers published describing several different synthetic methods for the synthesis of mesoporous TiO 2 materials. 7 These methods include hydrothermal processes, [8][9][10] pyrolysis, 11 thermal decomposition, 12 alkaline precipitation, 13,14 combustion, 15 mechanochemical and electrochemical methods, 16,17 sol-gel methods, 18 gas-phase condensation, 19 microwave and ultrasound techniques.…”

Section: Introductionmentioning

confidence: 99%

Tuning the porosity and surface characteristics of nanoporous titania using non-ionic surfactant reverse micelles

Paschalidou

Theocharis

2018

RSC Adv.

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Nanoporous titania was prepared from non-ionic surfactant reverse micelles (e.g. Triton-X) and the effects of the chain length of the surfactants and calcination temperature of the precursor gels on the surface properties of the product (mesoporous titania) were investigated. The studies included sample characterization of the precursor gels from the titania samples characterized by UV-Vis, ATR-FTIR, XRD, TGA/DSC and the titania samples by N 2 -adsorption BET, XRD, FT-IR, UV-Vis diffuse reflectance and SEM measurements after calcination at 400 C, 500 C, 600 C, 700 C and 800 C. According to the experimental results, generally increasing the length of the polar tail of Triton-X results in an increased specific surface area and volume, and an average pore diameter of the solids. Moreover, increasing the length of the polar tail is associated with a smaller crystallite size and higher thermal stability of the materials. Finally, a nucleation mechanism of the titania particles within the aqueous centre of the reversed micelles is proposed.

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Section: Introductionmentioning

confidence: 99%

Tuning the porosity and surface characteristics of nanoporous titania using non-ionic surfactant reverse micelles

Paschalidou

Theocharis

2018

RSC Adv.

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“…Such approach was discussed with reference to TiO 2 and SnO 2 in Refs. [67][68][69] and [70], correspondingly. It is necessary to note that technologies for fabricating mesoporous and hierarchical nanostructures have been developed for all the basic MOXs (SnO 2 , In 2 O 3 , TiO 2 , WO 3 , Fe 2 O 3 , etc.)…”

Section: Mesoporous Macroporous and Hierarchical Metal Oxide Structuresmentioning

confidence: 99%

Material Design for Metal Oxide Chemiresistive Gas Sensors

Han¹,

Cho²

2013

Journal of Sensor Science and Technology

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This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License(http://creativecommons.org/licenses /bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. Journal of SensorScience and Technology Vol. 22, No. 1 (2013) pp. 1- AbstractMetal oxides designed for application in conductometric gas sensors and approaches used for synthesis of metal oxides with improved gas sensing characteristics are discussed in present article.

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“…5 Recently, it has been reported that surfaces with nano features, either disordered 6,7 or ordered (e.g. gold nanoparticle arrays, 8 titanium nanotube arrays, [9][10][11][12] chemically etched titanium surfaces, 13,14 and nanostructured tantalum surfaces) [15][16][17] can greatly improve cell adhesion, proliferation and differentiation. 18 Our group has developed a general nano-patterning method for metal surfaces that is inexpensive as well as time-efficient.…”

Section: Introductionmentioning

confidence: 99%

Ordered nano-scale dimple pattern formation on a titanium alloy (Ti-6Al-4V)

2012

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Due to the many applications of nanostructured surfaces – including in biomaterials – there is a strong interest in cost- and time-efficient methods for their fabrication. Previously, our group established a simple electrochemical method generating nanoscale patterns on large areas of a number of different metal surfaces. They consist of dimples that are around 6-10 nm deep and hexagonally closed packed with a tunable periodicity of around 50 nm. Ordering requires careful tuning of the surface chemistry, which makes the translation of these findings to multi-component alloys non-obvious. Here, we demonstrate for the first time that such a pattern can also be achieved on the surface of an alloy, namely Ti-6Al-4V. This alloy is of particular interest for biomedical implants. While dimple formation on the main component metals titanium and aluminum has previously been reported (albeit under conditions that differ from each other), we now also report dimple formation on pure vanadium surfaces to occur under very different conditions. Dimple formation occurs preferentially on the (dominant) α-phase grains of the alloy. The size of dimples of the alloy material is subject to the electropolishing potential, electrolyte concentration and surface chemical composition, which gives us the opportunity to control the surface features. Since a main application of this alloy are biomedical implants, this level of control will be an important tool for accommodating cell growth

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Synthesis and applications of electrochemically self-assembled titania nanotube arrays

Cited by 251 publications

References 103 publications

Tuning the porosity and surface characteristics of nanoporous titania using non-ionic surfactant reverse micelles

Tuning the porosity and surface characteristics of nanoporous titania using non-ionic surfactant reverse micelles

Material Design for Metal Oxide Chemiresistive Gas Sensors

Ordered nano-scale dimple pattern formation on a titanium alloy (Ti-6Al-4V)

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