Sodium chloride assisted synthesis of silver nanowires

Li, Zhong Chun; Shang, Tong; Zhou, Quan; Feng, Ke

doi:10.1049/mnl.2010.0183

Cited by 24 publications

(18 citation statements)

References 35 publications

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“…Mediated agents (including anion or cation mediated agents) play an essential role in the synthesis of AgNWs by regulating the growth and etching speed [31]. Some reports [32][33][34][35][36][37][38][39] showed that anions such as Cl − ions and Br − ions could reduce supersaturation, thus promoting the formation of multiple twins and accelerating the growth of AgNWs. The etching effect of anion mediated agents was also investigated in detail.…”

Section: Introductionmentioning

confidence: 99%

Ultra-Uniform and Very Thin Ag Nanowires Synthesized via the Synergy of Cl−, Br− and Fe3+ for Transparent Conductive Films

et al. 2020

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The properties and applications of Ag nanowires (AgNWs) are closely related to their morphology and composition. Therefore, controlling the growth process of AgNWs is of great significance for technological applications and fundamental research. Here, silver nanowires (AgNWs) were synthesized via a typical polyol method with the synergistic effect of Cl−, Br−, and Fe3+ mediated agents. The synergistic impact of these mediated agents was investigated intensively, revealing that trace Fe3+ ions provided selective etching and hindered the strong etching effect from Cl− and Br− ions. Controlling this synergy allowed the obtainment of highly uniform AgNWs with sub-30 nm diameter and an aspect ratio of over 3000. Transparent conductive films (TCFs) based on these AgNWs without any post-treatment showed a very low sheet resistance of 4.7 Ω sq−1, a low haze of 1.08% at a high optical transmittance of 95.2% (at 550 nm), and a high figure of merit (FOM) of 1210. TCFs exhibited a robust electrical performance with almost unchanged resistance after 2500 bending cycles. These excellent high-performance characteristics demonstrate the enormous potential of our AgNWs in the field of flexible and transparent materials.

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Section: Introductionmentioning

confidence: 99%

Ultra-Uniform and Very Thin Ag Nanowires Synthesized via the Synergy of Cl−, Br− and Fe3+ for Transparent Conductive Films

et al. 2020

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“…In addition, PVP molecules are reported to enhance the reduction of metal salts by forming complexes through coordination between metallic ions and C=O groups and also stabilize the products subsequently [36,37]. However, the specific adsorption of PVP for the unidirectional growth of metallic seeds is only realized at specific Cl − ion concentrations [28,36,40]. At conditions suitable for the reduction of Ag ions to metallic Ag, Cl − ions control the morphology of Ag products through the etching processes that generate multitwinned Ag seeds.…”

Section: Introductionmentioning

confidence: 99%

Large-Scale Cu Nanowire Synthesis by PVP-Ethylene Glycol Route

Huaman

Urushizaki

Jeyadevan

2018

Journal of Nanomaterials

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Cu nanowire (NW) is a promising cost-benefit conducting material that could be considered for the development of transparent conducting films (TCF). However, the development of Cu NW as an alternating material for Ag or Au is not only limited by its stability in atmospheric conditions in the nanometer range but also due to the nonavailability of a simple synthetic route to produce them in high yields and in large-scale. Here, a scheme to synthesize Cu NWs by reducing Cu nitrate in a Cl − ionpolyvinylpyrrolidine-(PVP-) ethylene glycol (EG) system is proposed. Cu NWs with average diameter around 60 nm and average length of about 40 μm was obtained under optimized experimental conditions. Furthermore, the formation of Cu NW was elucidated to be through the progression of the following sequential reduction steps: at first, Cu ions underwent partial reduction to form spherical Cu 2 O. Then, the spherical Cu 2 O particles were redissolved and reduced to metallic Cu 0 atoms that subsequently formed the Cu seeds. Thereafter, Cu seeds underwent etching to form multiply-twinned particles (MTP). Finally, these Cu MTP grew unidirectionally to form metallic Cu NWs.

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“…They found that to achieve a low haze H < 1%, a high transmission T > 90%, a low R s ∼100 /sq for touch screen applications, the superfine Ag NWs with diameter (D < 50 nm and length (L > 5 m are needed. 21 Various preparation processes such as polyol process, [22][23][24] hydrothermal, 25 microwave heating, 26 photochemical, 27 electrochemical, 28 template-directed, 29 30 have been developed for the synthesis of Ag NWs. However, controllable preparation of the superfine Ag NWs is still a challenge, as most prepared Ag NWs have a mean diameter about 100 nm.…”

Section: Introductionmentioning

confidence: 99%

Controllable Growth of Superfine Silver Nanowires by Self-Seeding Polyol Process

Li¹,

Jing²,

Wang³

et al. 2015

j nanosci nanotechnol

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Superfine silver nanowires (Ag NWs) with diameter of 40~50 nm and length of 5~10 µm have been synthesized by the self-seeding polyol reduction process using silver nitrate as the silver source, polyvinyl pyrrolidone (PVP) as the structural directing agent, ethylene glycol (EG) as the reducing agent and AgBr as the mediator. The influence of different factors on the growth of Ag NWs was studied. The morphology and crystalline phase of Ag NWs were characterized by the field emission scanning electron microscopy (SEM) and X-ray diffraction (XRD) respectively. The results indicate that the introduction of potassium bromide (KBr) is helpful for growth of Ag NWs with a high aspect ratio, as AgBr colloids formed in the initial stage and the dissociation reaction of AgBr colloids would largely influence the delivering rate of Ag+ ions, which controls the nucleation and growth of the Ag NWs. Finally, the possible growth mechanism of Ag NWs was discussed.

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Sodium chloride assisted synthesis of silver nanowires

Cited by 24 publications

References 35 publications

Ultra-Uniform and Very Thin Ag Nanowires Synthesized via the Synergy of Cl−, Br− and Fe3+ for Transparent Conductive Films

Ultra-Uniform and Very Thin Ag Nanowires Synthesized via the Synergy of Cl−, Br− and Fe3+ for Transparent Conductive Films

Large-Scale Cu Nanowire Synthesis by PVP-Ethylene Glycol Route

Controllable Growth of Superfine Silver Nanowires by Self-Seeding Polyol Process

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