Fabrication of aluminum nanowires by mechanical deformation of Al using anodic porous alumina molds

Kondo, Toshiaki; Kitagishi, Naoya; Fukushima, Tatsuro; Yanagishita, Takashi; Masuda, Hideki

doi:10.1166/mex.2016.1316

Cited by 13 publications

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“…These structures were later anodized in a similar way to the standard NAA (0.3 M H 2 SO 4 at 0 °C under 12 V for 2–10 min). As result, nanowire arrays made of nanoporous anodic alumina with and without Al core were yielded [ 169 ]. A similar strategy was also conducted using aluminum microspheres.…”

Section: Engineered Naa Structuresmentioning

confidence: 99%

Recent Advances in Nanoporous Anodic Alumina: Principles, Engineering, and Applications

2021

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The development of aluminum anodization technology features many stages. With the story stretching for almost a century, rather straightforward—from current perspective—technology, raised into an iconic nanofabrication technique. The intrinsic properties of alumina porous structures constitute the vast utility in distinct fields. Nanoporous anodic alumina can be a starting point for: Templates, photonic structures, membranes, drug delivery platforms or nanoparticles, and more. Current state of the art would not be possible without decades of consecutive findings, during which, step by step, the technique was more understood. This review aims at providing an update regarding recent discoveries—improvements in the fabrication technology, a deeper understanding of the process, and a practical application of the material—providing a narrative supported with a proper background.

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Section: Engineered Naa Structuresmentioning

confidence: 99%

Recent Advances in Nanoporous Anodic Alumina: Principles, Engineering, and Applications

2021

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“…Several such applications need nanomaterials shaped into specific structures, which has been widely achieved by using an appropriate nanotemplate. One of the most commonly used nanotemplates is porous anodic alumina oxide (AAO) whose nanochannels have several specific properties, including a high aspect ratio, narrow size distribution, and long‐range ordered arrangement, and thus can be used for growing various nanostructures such as nanoparticles, nanowires, and nanocomposites . In addition, AAO films contain other advantages, such as low cost, uncomplicated fabrication process, and high throughput for mass production, which are important issues in the application of nanotechnology.…”

Section: Introductionmentioning

confidence: 99%

Creating anodic alumina nanochannel arrays with custom‐made geometry

Liu

Wang

2019

J Chinese Chemical Soc

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Porous anodic alumina oxide (AAO) is one of the most commonly used nanotemplates for growing arrays of nanoparticles, nanowires, nanocomposites, and nanoarchitectures because its pores, which are of a very uniform size, can grow longitudinally into arrays of self-aligned nanochannels with an extremely high aspect ratio. Furthermore, under specific combinations of anodization voltage and electrolyte, the lateral positions of nanochannels can self-organize into arrays of two-dimensional hexagonally close-packed lattices with domain sizes on the order of few tens of lattice units. The domain size can be greatly increased by prepatterning the Al surface with custom-designed nanoconcaves prior to the anodization process. The concaves guide the growth fronts of nanochannels and lead to the formation of an ideally long-range ordered lattice of nanochannel array. Such concaves have been fabricated by many methods, such as stamp imprinting, grating imprinting, and focused ion beam direct writing. In this review, we summarize the development of various methods to create AAO nanochannel arrays with custommade geometry and discuss the mechanism responsible for the guiding process. K E Y W O R D Sanodic alumina, guided growth of anodic nanochannels, nanochannel arrays, nanotemplate

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“…Porous alumina has a characteristic honeycomb nanostructure that consists of a porous layer with numerous high-aspect-ratio nanopores and a thin barrier layer. Therefore, porous alumina is widely used in various novel nano-science and engineering, such as storage devices [10], optoelectronic devices [11], metamaterials [12], photonic materials [13], surface plasmon resonances [14], gas sensors [15], biomaterials [16], and nanowires [17].…”

Section: Introductionmentioning

confidence: 99%

Nanostructural characterization of large-scale porous alumina fabricated via anodizing in arsenic acid solution

Akiya

Kikuchi

Natsui

2017

Applied Surface Science

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Anodizing of aluminum in an arsenic acid solution is reported for the fabrication of anodic porous alumina. The highest potential difference (voltage) without oxide burning increased as the temperature and the concentration of the arsenic acid solution decreased, and a high anodizing potential difference of 340 V was achieved. An ordered porous alumina with several tens of cells was formed in 0.1-0.5 M arsenic acid solutions at 310-340 V for 20 h. However, the regularity of the porous alumina was not improved via anodizing for 72 h. No pore sealing behavior of the porous alumina was observed upon immersion in boiling distilled water, and it may be due to the formation of an insoluble complex on the oxide surface. The porous alumina consisted of two different layers: a hexagonal alumina layer that contained arsenic from the electrolyte and a pure alumina honeycomb skeleton. The porous alumina exhibited a white photoluminescence emission at approximately 515 nm under UV irradiation at 254 nm.

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Fabrication of aluminum nanowires by mechanical deformation of Al using anodic porous alumina molds

Cited by 13 publications

References 0 publications

Recent Advances in Nanoporous Anodic Alumina: Principles, Engineering, and Applications

Recent Advances in Nanoporous Anodic Alumina: Principles, Engineering, and Applications

Creating anodic alumina nanochannel arrays with custom‐made geometry

Nanostructural characterization of large-scale porous alumina fabricated via anodizing in arsenic acid solution

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