Preparation and growth mechanism of nickel nanowires under applied magnetic field

Wang, J.; Zhang, L. Y.; Liu, P.; Lan, T. M.; Zhang, J.; Wei, Liangming; Kong, Eric Siu-Wai; Jiang, Chuanhai; Zhang, Y. F.

doi:10.1007/bf03353631

Cited by 28 publications

(20 citation statements)

References 24 publications

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“…3 shows the formation of nickel nanowires which was strongly dependent on the pH value of reaction medium. This finding concurred with results reported by Wang et al [10]. Welldefined nickel nanowires were observed to form under acidic condition (pH $4-5), whereas random agglomerates of nickel nanoparticles were obtained in both neutral and alkaline media and within the pH range of 7-12.…”

Section: Resultssupporting

confidence: 95%

Facile synthesis of nickel nanowires with controllable morphology

2015

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a b s t r a c tNickel nanowires of controllable morphology were synthesized by a facile wet chemical reduction method using hydrazine hydrate as the reducing agent. Synthesis parameters such as reaction temperature, concentration of nickel ions, and pH of reaction medium were observed to have significant effects on the morphology of nickel nanowires formed. Only randomly aggregated nanoparticles were obtained at the reaction temperature of 30 1C. However, visibly defined nickel nanowires of longitudinally aligned nanoparticles, and fully transformed, well-defined long and slender nanowires were obtained at reaction temperatures of 60 1C and 120 1C, respectively. Higher reaction temperature led to the formation of nickel nanowires of decreasing mean diameters, whereas increasing initial concentration of nickel ions resulted in the formation of nickel nanowires of larger mean diameters. Besides, welldefined nickel nanowires were formed at the reaction medium pH of 4-5. Henceforth, the morphology of nickel nanowires could be modulated readily via precise control of the synthesis parameters such as reaction temperature and initial concentration of nickel ions. Nickel nanowires of tailored morphology could potentially be useful for the fabrication of nanowire-based electronic or electrochemical devices.

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Section: Resultssupporting

confidence: 95%

Facile synthesis of nickel nanowires with controllable morphology

2015

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“…3). This technique has been limited to the assembly of NWs composed of ferromagnetic and/or superparamagnetic materials [48][49][50][51][52][53][54][55]. The process of assembly can be guided by external magnetic fields, as shown in Fig.…”

Section: Assembly Within Magnetic Fieldsmentioning

confidence: 99%

Recent Advances in Directed Assembly of Nanowires or Nanotubes

Liu

Lau

et al. 2012

Nano-Micro Lett.

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Nanowires and nanotubes of diverse material compositions, properties and/or functions have been produced or fabricated through various bottom-up or top-down approaches. These nanowires or nanotubes have also been utilized as potential building blocks for functional nanodevices. The key for the integration of those nanowire or nanotube based devices is to assemble these one dimensional nanomaterials to specific locations using techniques that are highly controllable and scalable. Ideally such techniques should enable assembly of highly uniform nanowire/nanotube arrays with precise control of density, location, dimension or even material type of nanowire/nanotube. Numerous assembly techniques are being developed that can quickly align and assemble large quantities of one type or multiple types of nanowires through parallel processes, including flow-assisted alignment, Langmuir-Blodgett assembly, bubble-blown technique, electric/magnetic-field directed assembly, contact/roll printing, knocking-down, etc.. With these assembling techniques, applications of nanowire/nanotube based devices such as flexible electronics and sensors have been demonstrated. This paper delivers an overall review of directed nanowire assembling approaches and analyzes advantages and limitations of each method. The future research directions have also been discussed.

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“…In recent years, transition metal nanoparticles (Fe, Co, and Ni) have received much attention owing to their wide applications in catalysis, optical, electronic, and magnetic devices [1,2]. There are many various techniques that are used for making metal nanoparticles with different morphologies such as spherical nanoparticles [3], triangles [4], nanorods [5], chains [2], and nanowires [6][7][8][9][10][11]. Anisotropic magnetic nanomaterials are known to exhibit unique magnetic properties due to which one-dimensional (1D) nanostructured materials have great potential for use in optical, electronic, and magnetic devices [12,13].…”

Section: Introductionmentioning

confidence: 99%

Characterization and Growth Mechanism of Nickel Nanowires Resulting from Reduction of Nickel Formate in Polyol Medium

Logutenko

Titkov

Vorobyov

et al. 2016

Journal of Nanomaterials

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Nickel linear nanostructures were synthesized by reduction of nickel formate with hydrazine hydrate in ethylene glycol medium in the absence of any surfactants or capping agents for direction of the particles growth. The effect of the synthesis conditions such as temperature, reduction time, type of polyol, and nickel formate concentration on the reduction products was studied. The size and morphology of the nickel nanowires were characterized by X-ray diffraction, scanning, and transmission electron microscopy. It was shown that the nickel nanocrystallites were wire-shaped with a face-center-cubic phase. Ethylene glycol was found to play a crucial role in the formation of the nickel nanowires. The possible growth processes of the wire-shaped particles taking place at 110 and 130°C are discussed. It was shown that, under certain synthesis conditions, nickel nanowires grow on the surface of the crystals of the solid intermediate of nickel with hydrazine hydrate.

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Preparation and growth mechanism of nickel nanowires under applied magnetic field

Cited by 28 publications

References 24 publications

Facile synthesis of nickel nanowires with controllable morphology

Facile synthesis of nickel nanowires with controllable morphology

Recent Advances in Directed Assembly of Nanowires or Nanotubes

Characterization and Growth Mechanism of Nickel Nanowires Resulting from Reduction of Nickel Formate in Polyol Medium

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