Electrochemical deposition of Co–Sb thin films on nanostructured gold

Vidu, Ruxandra; Li, Simon; Quach, Dat V.; Stroeve, Pieter

doi:10.1007/s10800-012-0401-9

Cited by 17 publications

(20 citation statements)

References 26 publications

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“…We have dubbed these Fluted Nanowires (FNW). The deposition of nanowires and nanotubes consisting of iron group elements and alloys has been previously observed, [2][3][4]10,11,[13][14][15][16] with previous studies noting a critical voltage threshold dividing deposition into two separate dominant growth regimes: nanowire at low overpotentials and nanotube at high overpotentials, 23 but to our knowledge there is no literature on the mechanisms that produce FNWs.…”

mentioning

confidence: 77%

“…The large shift of the reduction potential wave versus the oxidation potential is welldocumented 13,14 as a result of a nucleation and growth mechanism during deposition of the Co metal on the Au substrate. The voltage shift is the result of the excess free energy necessary to form stable nucleation centers that act as seeds for subsequent growth.…”

Section: Page 9 Of 18 Author Submitted Manuscript -Nano-111577mentioning

confidence: 94%

“…9,10 Templated electrodeposition is a well-established method [11][12][13][14][15][16] popularized by Martin et al 12 for the controlled synthesis of nanowires and nanotubes with the advantages of highly tunable size control, scalability, and low cost. Any template with well-defined pore sizes may be used, though the most common are commercial, track-etched polycarbonate (PCTE) and anodic alumina (AAO).…”

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confidence: 99%

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Nanowire formation is preceded by nanotube growth in templated electrodeposition of cobalt hybrid nanostructures

2016

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Cobalt fluted nanowires, novel nanostructures with a diameter of 200 nm consisting of a solid nanowire base and a thin, nanotubular flute shape, were grown in track-etched polycarbonate membranes via templated electrodeposition. The structures were characterized electrochemically via cyclic voltammetry, chronoamperometry, and charge stripping, and structurally via SEM, TEM, and focused ion beam cross-sectioning. Electrochemical and structural analysis reveals details of their deposition kinetics, structure, and morphology, and indicate possible mechanisms for their formation and control. These unique structures provide inspiration for an array of possible applications in electronics, photonics, and other fields.

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confidence: 77%

Section: Page 9 Of 18 Author Submitted Manuscript -Nano-111577mentioning

confidence: 94%

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confidence: 99%

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Nanowire formation is preceded by nanotube growth in templated electrodeposition of cobalt hybrid nanostructures

2016

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“…Template synthesis has proven useful in the controlled synthesis of highly uniform nanowires and nanowire arrays. Nanostructure synthesis in a template offers the possibility to grow nanostructures with complex compositions [95,96], high aspect ratio and integrated junctions, such as nanocable structures with integrated p-n junctions [97,98]. Numerous interesting properties have been identified in relation to the nanoscopic dimension (the diameter) of the materials with high aspect ratio [99].…”

Section: Biological Templatesmentioning

confidence: 99%

“…Electrochemical template synthesis is by far the technique of choice used to obtain arrays of nanoelectrodes [95,96,[128][129][130][131]. Both axial and longitudinal growth of nanocables with p-n junctions can be produced.…”

Section: Nanocablesmentioning

confidence: 99%

Template-based syntheses for shape controlled nanostructures

Pérez-Page

et al. 2016

Advances in Colloid and Interface Science

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A variety of nanostructured materials are produced through template-based synthesis methods, including zerodimensional, one-dimensional, and two-dimensional structures. These span different forms such as nanoparticles, nanowires, nanotubes, nanoflakes, and nanosheets. Many physical characteristics of these materials such as the shape and size can be finely controlled through template selection and as a result, their properties as well. Reviewed here are several examples of these nanomaterials, with emphasis specifically on the templates and synthesis routes used to produce the final nanostructures. In the first section, the templates have been discussed while in the second section, their corresponding synthesis methods have been briefly reviewed, and lastly in the third section, applications of the materials themselves are highlighted. Some examples of the templates frequently encountered are organic structure directing agents, surfactants, polymers, carbon frameworks, colloidal sol-gels, inorganic frameworks, and nanoporous membranes. Synthesis methods that adopt these templates include emulsion-based routes and template-filling approaches, such as self-assembly, electrodeposition, electroless deposition, vapor deposition, and other methods including layer-by-layer and lithography. Templatebased synthesized nanomaterials are frequently encountered in select fields such as solar energy, thermoelectric materials, catalysis, biomedical applications, and magnetowetting of surfaces.

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Electrodeposition of Ni and Te‐doped Cobalt Triantimonide in Citrate Solutions

et al. 2015

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Skutterudite compounds form a new class of potential candidates for thermoelectric applications. Cobalt triantimonide (CoSb3) shows good thermoelectric properties at medium and high temperatures. Doping this system with substitution elements, for either Co or Sb or both, may result in an increase of the thermoelectric figure of merit (ZT). This work focused on the electrochemical doping and characterization of films and nanowires of Co‐Sb system in citrate solutions using gold‐coated PCTE templates. The electrodeposition was performed on gold surface that was pre‐treated electrochemically to ensure reproducible results. The electrochemical treatment acted as an annealing process for the surface, which resulted in an increase in Au(111) as demonstrated by XRD. Detailed electrochemical studies including deposition‐stripping experiments was performed in order to develop a better understanding of the co‐deposition kinetics and a better control over the composition of doped Co‐Sb system. Scanning electron microscopy (SEM/EDS) helped study the morphology and the composition of the doped and undoped Co‐Sb system. Co‐deposition of Co‐Sb showed that the amount of Co is higher in nanowires than in film or mushroom caps due to the slow Sb deposition rate dictated by slow Sb(III) complex diffusion. Doped nanowires have been also obtained. Both Ni and Te electrochemical doping of the Co‐Sb system affected the composition of the deposit but there was no effect on nanowire morphology.

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Electrochemical deposition of Co–Sb thin films on nanostructured gold

Cited by 17 publications

References 26 publications

Nanowire formation is preceded by nanotube growth in templated electrodeposition of cobalt hybrid nanostructures

Nanowire formation is preceded by nanotube growth in templated electrodeposition of cobalt hybrid nanostructures

Template-based syntheses for shape controlled nanostructures

Electrodeposition of Ni and Te‐doped Cobalt Triantimonide in Citrate Solutions

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