Electrochemical fabrication of 2D and 3D nickel nanowires using porous anodic alumina templates

Mebed, Abdelazim M.; Abd‐Elnaiem, Alaa M.; Al-Hosiny, N.

doi:10.1007/s00339-016-0099-3

Cited by 17 publications

(19 citation statements)

References 23 publications

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“…Also, etching artefacts (similar to those found for anodized alumina [85,86]) such as the planar voids frequently found in ion-track etched polyethylene terephthalate [92,115] can link the track etched channels. These voids are oriented parallel to the polymer surface, and are probably caused by biaxial stretching of the PET films, which results in a laminar structuring [115].…”

Section: Ion-track Etched Polymer Templatesmentioning

confidence: 75%

“…By filling the as-obtained interconnected pore arrays in such alumina membranes, nano-networks are obtained as the inverse replica of the template structure ( Figure 7A, type v) [83]. Metal filling is commonly realized by electrodeposition, followed by etching of the remaining alumina walls to uncover the obtained nano-networks [84][85][86]. As a result of the typically high pore density of nanoporous alumina, which is intrinsically linked to the self-ordered pore formation [79], the networks obtained in such templates are relatively dense [83][84][85][86].…”

Section: Nanoporous Anodized Alumina Templatesmentioning

confidence: 99%

“…Metal filling is commonly realized by electrodeposition, followed by etching of the remaining alumina walls to uncover the obtained nano-networks [84][85][86]. As a result of the typically high pore density of nanoporous alumina, which is intrinsically linked to the self-ordered pore formation [79], the networks obtained in such templates are relatively dense [83][84][85][86]. In electrochemical applications, such horizontally linked nano-networks show clear advantages compared to their unconnected counterparts ( Figure 7B-F): Parallel 1D nanostructure arrays tend to form bundles [85,87,88], which causes inhomogeneities in the array architecture, compaction and surface area loss at the bundle tips, and stress (most pronounced at the bottom of the nanostructures), making the system susceptible toward nanostructure detachment or breaking ( Figure 7B,C).…”

Section: Nanoporous Anodized Alumina Templatesmentioning

confidence: 99%

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Metal Nanotube/Nanowire-Based Unsupported Network Electrocatalysts

Muench

2018

Catalysts

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Combining 1D metal nanotubes and nanowires into cross-linked 2D and 3D architectures represents an attractive design strategy for creating tailored unsupported catalysts. Such materials complement the functionality and high surface area of the nanoscale building blocks with the stability, continuous conduction pathways, efficient mass transfer, and convenient handling of a free-standing, interconnected, open-porous superstructure. This review summarizes synthetic approaches toward metal nano-networks of varying dimensionality, including the assembly of colloidal 1D nanostructures, the buildup of nanofibrous networks by electrospinning, and direct, template-assisted deposition methods. It is outlined how the nanostructure, porosity, network architecture, and composition of such materials can be tuned by the fabrication conditions and additional processing steps. Finally, it is shown how these synthetic tools can be employed for designing and optimizing self-supported metal nano-networks for application in electrocatalysis and related fields.

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Section: Ion-track Etched Polymer Templatesmentioning

confidence: 75%

Section: Nanoporous Anodized Alumina Templatesmentioning

confidence: 99%

Section: Nanoporous Anodized Alumina Templatesmentioning

confidence: 99%

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Metal Nanotube/Nanowire-Based Unsupported Network Electrocatalysts

Muench

2018

Catalysts

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“…[25]. In template-assisted electrodeposition, nanowire length must follow the length of AAO pore, but some nanowire grows fast compared to others and ends up mushroom-like structures at the top surface of AAO template [26][27][28][29][30][31]. Recent study [25] also showed that this growth instability can be avoided by introducing temperature gradient between bottom and top of the AAO pores.…”

Section: Diffusion Mechanism In Nanowire Growth Processmentioning

confidence: 99%

Understanding the Mechanisms that Affect the Quality of Electrochemically Grown Semiconducting Nanowires

Singh¹

2018

Semiconductors - Growth and Characterization

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Template-assisted synthesis of nanowires is a simple electrochemical technique commonly used in the fabrication of semiconducting nanowires. It is an easy and cost-effective approach compared to conventional lithography, which requires expensive equipment. The focus of this chapter is on the various mechanisms involving mass transport of ions during successive stages of the template-assisted electrochemical growth of indium antimonide (InSb) nanowires. The nanowires were grown in two different templates such as commercially available anodic aluminum oxide (AAO) templates and polycarbonate membranes. The chapter also presents the results of characterizing the InSb nanowires connected in a field effect transistor (FET) configuration. The Sb-rich InSb nanowires that were fabricated by DC electrodeposition in nanoporous AAO exhibited hole-dominated transport (p-type conduction). Temperature-dependent transport measurement shows the semiconducting nature of these nanowires.

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“…is developed primarily to control the morphology of nanostructures [58][59][60][61][62]. One of the main challenges, which limited the applicability of electrochemical method to fabricate highly-ordered nanowires, is that conventional direct current (DC) electrodeposition methods are suffering from practical difficulties related to producing a conductive self-assembled structure due to low conductivity of templates' materials [63][64][65][66][67][68][69][70][71][72][73][74][75][76]. On the other hand, alternating current (AC) electrochemical deposition method is well designed to overcome the technical difficulties, related to removing the barrier layer of the anodic Aluminum Oxide (AAO) and coating this self-assembled template with conductive materials [77].…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Highly Ordered Sn Nanowires in Anodic Aluminum Oxide Templates by Using AC Electrochemical Method

Sm¹,

Saba²

2018

Preprint

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Sn and its nanostructures are one of the promising candidates to replace graphite in the anode of Lithium-ion batteries due to their higher capacity. One of the challenges, which limited the usage of Sn anodes for the Lithium-ion batteries, is Tin's high volumetric strain and its low cyclability. On the other hand, nanostructures show lower volume change during charge/discharge and as a result could address the cyclability issues. In this research, an alternating current (AC) electrochemical method is developed in order to facilitate the industrial scale production of Sn nanowires. The developed electrodeposition technique shows reliable controllability over chemical composition and crystalline structure of Sn nanowires. Also, the order structure of nanowires could be adjusted more accurately in comparison to conventional fabrication techniques. As a result, the Sn nanowires as well as Aluminum Oxide templates synthesized by using the developed electrochemical method are examined due to their morphology, chemical composition, and their crystalline structure in order to develop a practical relation between electrochemical composition of the solution and materials properties of Sn nanowires. The results show that the proposed electrodeposition method maintains a highly-ordered morphology as well as industrially acceptable controllability over crystalline structure of nanowires, which could be used to optimize the procedure for industrial applications due to low cost and simple experimental setup.

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Electrochemical fabrication of 2D and 3D nickel nanowires using porous anodic alumina templates

Cited by 17 publications

References 23 publications

Metal Nanotube/Nanowire-Based Unsupported Network Electrocatalysts

Metal Nanotube/Nanowire-Based Unsupported Network Electrocatalysts

Understanding the Mechanisms that Affect the Quality of Electrochemically Grown Semiconducting Nanowires

Fabrication of Highly Ordered Sn Nanowires in Anodic Aluminum Oxide Templates by Using AC Electrochemical Method

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