Anodic oxidation of aluminium

Thompson, G.E.; Xu, Ying; Skeldon, P.; Shimizu, K.; Han, Seung-Ho; Wood, G. C.

doi:10.1080/13642818708218371

Cited by 216 publications

(163 citation statements)

References 22 publications

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“…The length of the wires results to be approximately 30 lm for La(OH) 3 and 50 lm for Nd(OH) 3 , which correspond to an aspect ratio of $150 and 250, respectively. We want to stress that pore diameters and thickness of AAM can be easily controlled during the fabrication process [21][22][23][24][25] so allowing, in principle, to reach still larger aspect ratios.…”

Section: Resultsmentioning

confidence: 99%

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Template electrosynthesis of La(OH)3 and Nd(OH)3 nanowires using porous anodic alumina membranes

Bocchetta

Santamaria

Quarto

2007

Electrochemistry Communications

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High quality arrays of Ln(OH) 3 (Ln = La, Nd) nanowires have been successfully fabricated for the first time by an electrochemical process using anodic alumina membrane templates. A physico-chemical characterisation of electrodeposited hydroxides has been carried out by different techniques (XRD, SEM and EDX). The results show that the synthesized nanostructures are crystalline, dense, continuous, well aligned, and with high aspect ratio, suggesting further development of possible applications in the lanthanide family species.

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Section: Resultsmentioning

confidence: 99%

“…The successful use of AAMs in this field is related to: (a) easy and low-cost fabrication method, (b) benefits of a high pore densities in a hexagonal highly ordered close-packed arrays [19,20], (c) ability to tailor pore diameters and depths by simply controlling the anodizing conditions of aluminium [21][22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Template electrosynthesis of La(OH)3 and Nd(OH)3 nanowires using porous anodic alumina membranes

Bocchetta

Santamaria

Quarto

2007

Electrochemistry Communications

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“…The growth of classical porous alumina proceeds under the condition that no film materials are developed at the film/electrolyte interface [16]. The condition arises when all Al 3+ ions reaching the film surface are directly ejected into the electrolyte.…”

Section: Discussionmentioning

confidence: 99%

Formation of porous anodic films on Ti–Si alloys in hot phosphate-glycerol electrolyte

Habazaki

Oikawa

Fushimi

et al. 2007

Electrochimica Acta

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Porous anodic films, with pore size of ~10 nm, have been developed by anodizing of magnetron sputtered Ti-25 at% Si alloy at constant formation voltages in glycerol electrolyte containing dibasic potassium phosphate at 433 K. The films, of amorphous structure, contain titanium and silicon species, as units of TiO 2 and SiO 2 , throughout the film thicknesses, with negligible amounts of phosphorus species. The silicon is enriched in the film relative to the composition of the alloy, the level of enrichment suggesting that anion migration is increased in comparison with amorphous film growth at ambient temperature. In contrast to the behaviour of the alloy, essentially barrier films were formed on commercially pure titanium in the glycerol electrolyte, when a main anodic reaction was generation of oxygen, which was probably promoted by the development of anatase.

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“…The growth of anodic films on aluminum has been investigated with film morphology, 1 composition, 2 and ion transport processes. [3][4][5][6] In the previous work 2, 3,5,6 it was shown that the film formed in the molten eutectic mixture of NaHSO 4 :NH 4 HSO 4 (1:1 mol) has a duplex nature, at least with respect to film composition.…”

Section: Introductionmentioning

confidence: 99%

A Study of Sulphate Ion within the Film Related to Two Stage Anodizing

2013

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Features observed during reanodizing in 0.1 M ammonium pentaborate electrolyte through the preformed barrier film formed in molten eutectic mixture of NaHSO 4 :NH 4 HSO 4 (1:1 mol), as a mobile tracer, results from the operation of several factors, such as film density, current density, and field strength. When the density of the preformed film is less than that of the second stage film, the preformed film is perfectly preserved and the incorporated sulphate ions in the preformed film are immobile under the influence of high field during reanodizing. Therefore, it is likely that the preformed film behaves as an ideal inert marker layer.

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Anodic oxidation of aluminium

Cited by 216 publications

References 22 publications

Template electrosynthesis of La(OH)3 and Nd(OH)3 nanowires using porous anodic alumina membranes

Template electrosynthesis of La(OH)3 and Nd(OH)3 nanowires using porous anodic alumina membranes

Formation of porous anodic films on Ti–Si alloys in hot phosphate-glycerol electrolyte

A Study of Sulphate Ion within the Film Related to Two Stage Anodizing

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