Convenient synthesis of silver nanowires with adjustable diameters via a solvothermal method

Chen, Dapeng; Qiao, Xueliang; Qiu, Xiaolin; Chen, Jianguo; Jiang, Rifeng

doi:10.1016/j.jcis.2009.12.055

Cited by 69 publications

(46 citation statements)

References 38 publications

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“…Silver nanowires were prepared by using a solvothermal process in a modification of the method proposed by Chen et al [10]. Briefly, 10 ml ethylene glycol solution of 0,15M PVP is injected drop by drop into 10 ml of magnetically stirred EG solution of 0,1M AgNO3 / 0,1mM NaCl.…”

Section: Methodsmentioning

confidence: 99%

Silver nanowires/polycarbonate composites for conductive films

Moreno

Navascués

Irusta

et al. 2012

IOP Conf. Ser.: Mater. Sci. Eng.

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Abstract. Silver nanowires (AgNW) with an aspect ratio of 85 were synthesized by a solvothermal process. The AgNW were characterized by SEM and XRD techniques. Nanocomposites of these silver nanowires in a polycarbonate matrix were prepared by simple solution mixing procedure in a concentration filler range 0-4.35 wt%. The obtained films were around 18 µm thick, optical microscopy and SEM characterization showed good dispersion of the nanowires in the polymeric matrix. The obtained composites presented low percolation threshold (0.04 wt%) and the maximum conductivity at 4.35 wt% filler loading was 2.3x10 -2 S/cm. IntroductionElectrically conductive polymer composites resulting from the association of an insulating matrix with conductive fillers are routinely employed in various commercial applications: batteries, electrodes, anti-static and corrosion resistant materials [1][2][3]. Besides, they have been studied by many groups for their sensing ability because of the resistivity variation with thermal, mechanical or chemical solicitations [4].Common conductive fillers include carbon black, graphite, carbon fibers, metal nanoparticles and aluminum flakes. Metal nanowires/polymer nanocomposites are alternative materials to those of carbon nanotube-based polymer composites and the final applications of these materials would be determined by their properties, cost and ease of processing. Silver nanomaterials are of current importance due to its unique electrical, thermal, catalytic and optical properties, sensing characteristic and antimicrobial effects. The preparation of conductive composites using different silver shape materials: flake, nanowires, or spherical, was previously reported [5,6]. There is great interest for onedimensional conductive nanomaterials with high aspect ratio since it was demonstrated that increasing the aspect ratio of the filler will increase the conductivity of the composite [7]. Conducting polymer structures may be developed at low loading of 1D fillers due to the lower percolation thresholds needed for the high aspect ratio structures. Silver nanowire (AgNW)/polymer composites were repeatedly reported as effective materials for electrodes. AgNW electrodes on cross-linked polyacrylate subtract have shown low surface resistance [8] while a composite obtained by embedding Ag nanowires into the conducting polymers PEDOT:PSS were probed to be high-efficiency anodes [9].Polycarbonate (PC) is an amorphous thermoplastic resin with very low electrical conductivity yet with a wide range of useful properties like excellent toughness, very good dimensional stability, transparency and thermal stability. The wide range of PC films applications should be further extended by the addition of electrical properties.

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Section: Methodsmentioning

confidence: 99%

Silver nanowires/polycarbonate composites for conductive films

Moreno

Navascués

Irusta

et al. 2012

IOP Conf. Ser.: Mater. Sci. Eng.

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“…Cu 2+ was found to remove oxygen atoms blocking growing sites of the AgNWs surface, favoring deposition of more silver, while also preventing oxidative etching. On the other hand, Cl -acted as the rate-determining step of the overall reaction, by forming temporary precipitates of AgCl, the slow degradation of which provided control over the reaction rate [28]. Choi et al [29] exploited the same principle by adding trace amounts of NaCl in place of CuCl 2 , this resulted in similar size distribution (50 nm in diameter and 20 µm length) as assessed by SEM.…”

Section: Soft-template Synthesismentioning

confidence: 99%

“…2-50 µm Not tested Temperature and seed number important [24] 30-40 nm Not stated Not tested Pt nanoparticle seeding AgNO 3 and PVP added dropwise [25] 45-60 nm 2-5 µm Not tested Self-seeding with syringe pump; PVP to AgNO 3 molar ratio critical; PVP molecular weight important [26] 100 nm 10-50 µm Not tested Addition of CuCl 2 or CuCl important [27] 170-310 nm Not stated Not tested Solvothermal method with H 2 S Controllable diameters by H 2 S concentration [28] 50 nm 20 µm Not tested NaCl instead of CuCl 2 [29] 30-70 nm 1-25 µm Not tested Altering temp and time controls size of generated AgNWs [30] 30-50 nm 80 nm Not stated Not tested 100 • C w/o PVP 200 • C w/o PVP [31] 60-90 nm 6-12 µm Not tested Glycerol substituted for ethylene glycol (green process) [32] 70-150 nm 3-8 µm E. coli MC1061 (pSLlux)…”

Section: -40 Nmmentioning

confidence: 99%

Silver Nanowires: Synthesis, Antibacterial Activity and Biomedical Applications

2018

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Abstract:Silver is well known for its antibacterial properties and low toxicity, and it is currently widely used both in the form of ions and of nanoparticles in many diverse products. One-dimensional silver nanowires (AgNWs) have the potential to further enhance the properties of nanosilver-containing products, since they appear to have higher antimicrobial efficacy and lower cytotoxicity. While they are widely used in optics and electronics, more studies are required in order to better understand their behavior in the biological environment and to be able to advance their application in uses such as wound healing, surface coating and drug delivery.

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“…The solvothermal method used in this study was similar to that reported previously [25]. Typically, a 10 mL ethylene glycol (EG) solution of Na 2 S was stirred after the addition of 0.174 g Poly(vinyl Pyrrolidone) (PVP).…”

Section: Preparation Of Silver Nanowires and Lifepomentioning

confidence: 99%

“…In our previous work, we have sucessfully synthesized Ag nanowires with adjustable diameters by a simple solvothermal method [25]. In this paper, we describe a simple route to improve the electrochemical performance of LiFePO 4 cathodes by dispersing as-prepared Ag nanowires to these cathodes.…”

Section: Introductionmentioning

confidence: 99%

Effects of Silver Nanowires on The Electro-chemical Performance of LiFePO4

Chen¹,

Zhu²,

Zhu³

et al. 2011

Nano BioMed ENG

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Lithium iron phosphate (LiFePO 4 ) is a promising cathode material for lithium-ion batteries. However, an important drawback of this material is its poor conductivity. In this approach, a simple approach is firstly proposed to enhance the conductivity of LiFePO 4 cathodes by dispersing conductive Ag nanowires to these cathodes. LiFePO 4 /Ag nanowires composite cathodes were characterized by X-ray diffraction (XRD) and field emission scanning electron microscope (FSEM), and their electrochemical performance were evaluated by charge/discharge tests. It is demonstrated that the capacity and rate capability of LiFePO 4 /Ag nanowires composite cathodes can be improved considerably by the addition of Ag nanowires. Especially, discharge capacities are improved from ~110 mAh g -1 of LiFePO 4 cathodes to ~150 mAh g -1 for LiFePO 4 /Ag nanowires composite cathodes at 0.2 C. Therefore, LiFePO 4 /Ag nanowires cathodes can be used as an attractive positive electrode candidate for lithium-ion batteries.

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Convenient synthesis of silver nanowires with adjustable diameters via a solvothermal method

Cited by 69 publications

References 38 publications

Silver nanowires/polycarbonate composites for conductive films

Silver nanowires/polycarbonate composites for conductive films

Silver Nanowires: Synthesis, Antibacterial Activity and Biomedical Applications

Effects of Silver Nanowires on The Electro-chemical Performance of LiFePO4

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