Formation of self-organized titania nano-tubes by dealloying and anodic oxidation

Bayoumi, Fathy M.; Ateya, B. G.

doi:10.1016/j.elecom.2005.10.014

Cited by 47 publications

(22 citation statements)

References 45 publications

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“…A highly desired densely packed hexagonal array nanoporous structure can be obtained by anodization, which is a relatively easy process for nanostructured material fabrication. The electrochemical formation of self-organized nanoporous structures produced by the anodic oxidation of semiconductors or metals, except aluminum, has been reported for only a few materials such as Si [165][166][167][168][169][170][171][172], InP [173,174], Ti [175][176][177][178][179][180][181][182][183], Zr [181,[184][185][186], Nb [187][188][189][190], Hf [191] and Sn [192]. During recent years, the anodization of aluminum, due to its great commercial significance, represents one of the most important and widespread method used for the synthesis of ordered nanostructures consisting of close-packed cells in a hexagonal arrangement with nanopores at their centers.…”

Section: Anodizing Of Aluminum and Anodic Porous Alumina Structurementioning

confidence: 99%

Highly Ordered Anodic Porous Alumina Formation by Self‐Organized Anodizing

Sulka

2008

Nanostructured Materials in Electrochemistry

236

298

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Section: Anodizing Of Aluminum and Anodic Porous Alumina Structurementioning

confidence: 99%

Highly Ordered Anodic Porous Alumina Formation by Self‐Organized Anodizing

Sulka

2008

Nanostructured Materials in Electrochemistry

236

298

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“…These materials have been of considerable interest to the scientists because of their unusual and fascinating properties [1][2][3][4][5]. Several techniques have been used for the synthesis of nanoparticles.…”

Section: Introductionmentioning

confidence: 99%

Electrodeposition: a versatile and inexpensive tool for the synthesis of nanoparticles, nanorods, nanowires, and nanoclusters of metals

2010

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The synthesis of various nanoscale materials, such as nanoparticles, nanowires of Au, Pt, Ni Co, Fe, Ag etc., by electrodeposition techniques have been demonstrated in this article. Both potentiostatic and galvanostatic methods were employed to carry out the electrodeposition process under different potential ranges, time durations, and current densities. The electrochemical behavior of the deposited nanoparticles on various substrates was investigated by cyclic voltammetric and chronoamperometric techniques. The synthesis of mono-dispersed gold (Au) nanoparticles on indium tin oxide (ITO) coated glass, preparation of Au nanorods on nanoporous anodic alumina oxide (AAO), formation of Au nanoclusters on polypyrrole-modified glassy carbon electrode and one-step electrodeposition of nickel nanoparticle chains embedded in TiO 2 etc. have been highlighted in this article. The potential applications of synthesized nanoparticles such as the role of maghemite (Fe 2 O 3 ) in arsenic remediation, higher electrocatalytic activity of Ag nanoclusters for the reduction of benzyl chloride, and the role of C 60 nanoparticle-doped carbon film in fabrication processes are also presented in this article.

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“…The latter application is due to the superior mechanical strength and biocompatibility, and has led to the commercial production of implants fabricated from pure titanium or titanium-based alloys [31]. Titanium anodization is used to prepare an interfacial layer (a porous layer) on the metal surface, which has the function of osseointegrating with bones [32][33][34][35]. The formation of this layer is important because the native titanium oxide coatings (the oxide formed naturally in air) do not have any ability to form a strong bond with bony tissue; consequently, the surfaces of titanium implants must be covered with a thick oxide layer in order to promote osseointregration.…”

Section: Electropolishing and Anodizationmentioning

confidence: 99%

Nanostructured Materials Synthesized Using Electrochemical Techniques

Oliveira

Freitas

Mattoso

et al. 2008

Nanostructured Materials in Electrochemistry

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The visualization and/or handling of atom clusters, or even individual atoms, has been achieved during the past 25 years. One of the most practical instruments for this purpose is the tunneling microscope, which was invented during the 1980s. On such a small scale, materials properties are not the same as those of a macroscopicsized substance. The first occasion on which a scientist proposed atom handling was in 1959, when Professor Richard Feynman [1], during a lecture at the California Institute Technology, suggested that in the near future engineers would be able to take atoms and place them exactly where they wanted to, without -of courseinfringing the laws of Nature. Today, Professor Feynmans lecture, which was entitled There is Plenty of Room at the Bottom, is considered a milestone of the current technological and scientific era.We can define nanoscience as the study of the phenomena and handling of structures on the atomic, molecular and macromolecular scale, where at least one dimension is significantly less than the others. And nanotechnology includes the design, characterization, and production of devices and systems on a nanometer scale. This definition of nanotechnology is wide-ranging, it is not a specific technology, all of the techniques based on physics, chemistry, biology, materials science and engineering -and/or using computers -leading to the development of materials and tools in such a way that the common point among them is the reduced dimension in which they operate. Among these applications are: increased storage and processing capacity for computers; the creation of new mechanisms for drug delivery; and the production of materials which are both lighter and more resistant than metals and plastics. Additional benefits of nanotechnology developments include energy saving, environmental protection, and the more efficient use of increasingly scarce raw materials.Today, these new investigations into material fabrication are focused mainly on nanostructured devices or, at least, microdevices. The most-often used technique for j117 Nanostructured Materials in Electrochemistry. Edited by Ali Eftekhari

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Formation of self-organized titania nano-tubes by dealloying and anodic oxidation

Cited by 47 publications

References 45 publications

Highly Ordered Anodic Porous Alumina Formation by Self‐Organized Anodizing

Highly Ordered Anodic Porous Alumina Formation by Self‐Organized Anodizing

Electrodeposition: a versatile and inexpensive tool for the synthesis of nanoparticles, nanorods, nanowires, and nanoclusters of metals

Nanostructured Materials Synthesized Using Electrochemical Techniques

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