Electrodeposition of nanostructure objects with pentagonal symmetry

Yasnikov, I. S.; Vikarchuk, A. A.; Denisova, D. A.; Gryzunova, N. N.; Tsybuskina, I. I.

doi:10.1134/s106378420710012x

Cited by 8 publications

(7 citation statements)

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“…27,28 The formation mechanism of pentagonal crystals with one fivefold symmetry axis has been discussed in previous studies. [29][30][31] The pentagonal crystals of nickel mesostructures obtained at −2.0 mA cm −2 can be explained through the model based on a modified Wulff construction for shape formation. According to this model, the pentagonal crystals can be described as a collection of single-crystal decahedral or icosahedral particles that are twin-related at their adjoining faces.…”

Section: Resultsmentioning

confidence: 99%

“…However, the hierarchical layered structure will form when the formation conditions are far from the thermodynamic equilibrium because of the increasing of the contribution of mass diffusion 27,28. The formation mechanism of pentagonal crystals with one fivefold symmetry axis has been discussed in previous studies [29][30][31]. The pentagonal crystals of nickel mesostructures obtained at −2.0 mA cm −2 can be explained through the model based on a modified Wulff construction for shape formation.…”

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confidence: 98%

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Template-Free Electrochemical Deposition and Characterization of Ni Nano/Microrod Arrays

Yao¹,

Wei²,

Meng³

et al. 2012

J. Electrochem. Soc.

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Vertical aligned arrays of Ni nano/microrods have been successfully fabricated via a galvanostatic electrolysis on Ti substrates without any hard templates and surfactants. Electrodeposition and cyclic voltammetry were conducted in a conventional three-electrode glass cell. Cyclic voltammetry was used to study the electrochemical reactions relevant to the film growth. The transfer coefficient and diffusion coefficient of Ni(II) became smaller with the decrease of the reaction temperature. SEM images indicate that the aspect ratio of the nano/microrods is about 11 and 3, respectively. It is found that the various morphologies of the products are dependent on the electrodeposition conditions, such as the deposition current densities, kinds of additives, substrates, pH, and deposition temperature. X-ray diffraction patterns show that the as-deposited nano/microrods are all cubic phase of Ni. TEM analyzes confirm the Ni microrods are single crystal and nanorods polycrystalline, respectively. The anti-corrosion property of Ni film with a polycrystalline structure is poor for its high degree of surface defects. Both the Ni nano/micro arrays exhibit excellent soft magnetic properties at room temperature and ferromagnetism at 5 K.

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Section: Resultsmentioning

confidence: 99%

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confidence: 98%

Template-Free Electrochemical Deposition and Characterization of Ni Nano/Microrod Arrays

Yao¹,

Wei²,

Meng³

et al. 2012

J. Electrochem. Soc.

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“…A technique for increasing the specific surface area of copper icosahedral particles and pentagonal crystals via thermal treatment in the presence of oxygen was proposed in [10][11][12]. A similar method was used in [13] to create the developed surface of a metallic car rier and a nickel containing coating.…”

Section: Introductionmentioning

confidence: 99%

Creating a developed surface of copper electrolytic coatings via mechanical activation of the cathode with subsequent thermal treatment

Gryzunova

Викарчук

Bekin

et al. 2015

Bull. Russ. Acad. Sci. Phys.

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“…Introducing twins and other low-Σ boundaries to a material is known to significantly improve mechanical properties (grain boundary engineering) [8,9]. Related to a high twin density, 5-fold structural units composed of twins have been observed for different materials [4,5,10]. A formation mechanism based on sequential twinning processes was proposed [11] and described in detail by Zhu et al [12].…”

Section: Introductionmentioning

confidence: 99%

Formation of Multiple Twinned Structural Units in Electrodeposited Nickel after Annealing

Kahrimanidis

Klement

2014

MSF

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Electrodeposition is an advanced synthesis technique which involves the creation of a coating or free-standing material through an electrolytic process. Organic additives such as saccharin have been frequently used in electroplating operations to moderate deposit growth rates and to control film quality. In the present study, plating of Nickel without additives has resulted in a sub-microcrystalline microstructure and a <110>-fibre texture in growth direction. Structural units in form of groups of grains possessing a common <110>-zone axis in growth direction and low-Σ relationships between them have been found in the microstructure by use of EBSD. Upon annealing, grain growth sets in. However, the structural units and the texture are preserved up to 550°C. This means that the structural units stabilize the microstructure; there is no orientation change when grain growth occurs (e.g. by twinning). The low-Σ boundaries of the structural units are described in detail and texture development upon annealing is discussed in connection with results from previous studies on Ni and Ni-alloys of different initial texture.

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Electrodeposition of nanostructure objects with pentagonal symmetry

Cited by 8 publications

References 1 publication

Template-Free Electrochemical Deposition and Characterization of Ni Nano/Microrod Arrays

Template-Free Electrochemical Deposition and Characterization of Ni Nano/Microrod Arrays

Creating a developed surface of copper electrolytic coatings via mechanical activation of the cathode with subsequent thermal treatment

Formation of Multiple Twinned Structural Units in Electrodeposited Nickel after Annealing

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