One-step synthesis of ultra-long silver nanowires of over 100 μm and their application in flexible transparent conductive films

Li, Yuxiu; Guo, Shuailong; Yang, Hongwei; Chao, Yunxiu; Jiang, Shaozhuang; Wang, Chuan

doi:10.1039/c7ra13683h

Cited by 78 publications

(43 citation statements)

References 36 publications

(45 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In bimetallic Cu:Ag, observed re ections around ~38.2˚, 46˚, 64.4˚, and 77.1˚ are attributed to (111), (200), (220), and (311) facets with fcc phase of Ag according to JCPDS No. 04-0783 [32,[49][50][51][52]. Whereas, in case of Cu, diffractions appeared around 32.6˚, 44.2˚, and 51˚ denoted (110), (111), and (200) lattice planes that con rmed the presence of fcc structured CuO and metallic Cu respectively, and well-matched with JCPDS No.…”

Section: Resultssupporting

confidence: 60%

Development of Multi-Concentration Ag:Cu Bimetallic Nanoparticles as a Promising Bactericidal for Antibiotic-Resistant Bacteria as Per Molecular Docking Exploration

Mureed

Naz

Haider

et al. 2020

Preprint

View full text Add to dashboard Cite

The present study is concerned with the influence of various concentrations of Ag within Cu:Ag bimetallic nanoparticles developed for use as a promising anti-bacterial agent against antibiotic-resistant bacteria. Here, Cu:Ag bimetallic nanoparticles (NPs) with various concentration ratios (2.5, 5.0, 7.5, and 10 wt.%) of Ag in fixed amount of Cu labeled as 1:0.025, 1:0.050, 1:0.075, and 1:0.1 were synthesized using co-precipitation method with ammonium hydroxide and deionized water as solvent, polyvinyl pyrrolidone as a capping agent, and sodium borohydride and ascorbic acid as reducing agents. These formulated products were characterized through a variety of techniques. XRD confirmed phase purity and detected the presence of distinct fcc structures belonging to Cu and Ag phases. FTIR spectroscopy confirmed the presence of vibrational modes corresponding to various functional groups and recorded characteristic peak emanating from the bimetallic. UV-visible spectroscopy revealed reduction in band gap with increasing Ag content. SEM and HR-TEM micrographs demonstrated spherical morphology of Ag-doped Cu bimetallic with small and large scale agglomerations. The samples exhibited varying dimensions and interlayer spacings. Bactericidal action of synthesized Cu:Ag bimetallic NPs depicted statistically significant (P < 0.05) inhibition zones recorded for various concentrations of Ag dopant against Staphylococcus aureus (S. aureus), Escherichia coli (E. coli), and Acinetobacter baumannii (A. baumannii) ranging from (0.85 – 2.8 mm), (0.55 – 1.95 mm) and (0.65 – 1.85 mm), respectively. Broadly, Cu:Ag bimetallic NPs were found to be more potent against gram-positive compared with gram-negative. Molecular docking study of Ag-Cu bimetallic NPs was performed against β-lactamase which is a key enzyme of cell wall biosynthetic pathway from both S. aureus (Binding score: -4.981 kcal/mol) and A. bauminnii (Binding score: -4.013 kcal/mol). Similarly, binding interaction analysis against FabI belonging to fatty acid biosynthetic pathway from A. bauminnii (Binding score: -3.385 kcal/mol) and S. aureus (Binding score: -3.012 kcal/mol) along with FabH from E. coli (Binding score: -4.372 kcal/mol) was undertaken. These theoretical computations indicate Cu-Ag bimetallic NPs as possible inhibitor of selected enzymes. It is suggested that exploring in vitro inhibition potential of these materials may open new avenues for antibiotic discovery.

show abstract

Section: Resultssupporting

confidence: 60%

Development of Multi-Concentration Ag:Cu Bimetallic Nanoparticles as a Promising Bactericidal for Antibiotic-Resistant Bacteria as Per Molecular Docking Exploration

Mureed

Naz

Haider

et al. 2020

Preprint

View full text Add to dashboard Cite

show abstract

“…The crystalline phases of the synthesized NDs were determined via XRD analysis, as shown in Figure S4. The typical face‐centered‐cubic (fcc) Ag and Au diffraction peaks, including (111), (200), (220), (311), and (222) planes were observed for both Ag and Au NDs [50, 51] . The Cu NDs XRD patterns showed typical Cu diffraction peaks of (111), (200), and (222) with a small amount of Cu 2 O, as specifically indicated [52] .…”

Section: Resultsmentioning

confidence: 91%

Electrochemical Reduction of CO₂ at Coinage Metal Nanodendrites in Aqueous Ethanolamine

Hossain

Ahmad

Silva

et al. 2020

Chemistry A European J

View full text Add to dashboard Cite

Electrocatalytic reduction of CO 2 into usable chemicals is ap romising path to addressc limate changea nd energy challenges. Herein, we demonstrate the synthesis of unique coinagem etal (Cu, Ag, and Au) nanodendrites (NDs) via af acile galvanic replacement reaction(GRR), which can be effective electrocatalysts for the reductiono fC O 2 in an ethanolamine(EA) solution. Each metal ND surface was directly grown on glassy-carbon(GC) substrates from am ixture of Zn dust and the respective precursors olution. The electrocatalytic activities of the synthesized ND surfaces were optimized for CO 2 reduction in EA solution by varying their composition. It was determined that a0 .05 mol fraction of EA exhibited the highestc atalytic activity for all metal NDs. Linear sweep voltammetry (LSV) and electrochemical impedance spectroscopy (EIS) techniquess howed that metal-ND electrodes possessed higher current densities, lowero nset potentials and lower charge-transfer resistances for CO 2 reduction than their smooth polycrystalline electrode counterparts, indicating improved CO 2 reduction catalytic activity.I tw as determined, using FTIR and NMR spectroscopy, that formate wasp roduced as ar esult of the CO 2 reduction.

show abstract

“…The autoclave step prevents the oxidization of glycerol in air and consequently formation of acrolein and light-yellow polymer [129]. Li et al synthesized AgNWs as long as 160 μm with 40-85 nm diameter with glycerol as a solvent and a reducing agent and heating at 150°C [130]. Jang et al synthesized AgNWs as long as 65 μm with an aspect ratio up to 1500 in a tetrabutylammonium dichlorobromide (TBADCB) saltbased polyol synthesis process in which the wire diameter can be controlled by the TBADCB/AgNO 3 molar ratio and length can be controlled by mechanical stirring (unidirectional axial stirring) and reaction temperature.…”

Section: Effect Of the Mixing Type And Rate In The Polyol Synthesismentioning

confidence: 99%

“…Li et al described a hydrothermal reaction mechanism similar to the polyol process in which pentagonal twinned silver seed crystals with D 5h symmetry are produced and subsequently increase in diameter. The reaction requires a stationary solution and a relatively high temperature with high molecular weight PVP to produce long AgNWs [130]. Jang et al proposed a four-step reaction mechanism including nucleation, cluster formation, seeding, and AgNW growth with assistance of PVP [131].…”

Section: Reaction Mechanism Of Agnw Polyol Synthesismentioning

confidence: 99%

Polyol Silver Nanowire Synthesis and the Outlook for a Green Process

Hemmati

Harris

Barkey

2020

Journal of Nanomaterials

View full text Add to dashboard Cite

Silver nanowires (AgNWs) have a broad range of applications including nanoelectronics, energy conversion, health care, solar cells, touch screens, sensors and biosensors, wearable electronics, and drug delivery systems. As their characteristics depend strongly on their size and morphology, it is essential to find the optimal and most cost-effective synthesis method with precise control over the size and morphology of the wires. Various methods for AgNW synthesis have been reported along with process optimization and novel techniques to increase the yield and aspect ratios of synthesized AgNWs. The most promising processes for synthesis of AgNWs are wet chemical techniques, in which the polyol process is low cost and simple and provides high yield compared to other chemical methods. Reaction mechanism is one of the most important factors in strategies to control the process. Our purpose here is to provide an overview on the main findings regarding synthesis, preparation, and characterization of AgNWs. Recent efforts in the polyol synthesis of AgNWs are summarized with respect to product morphology and size, reaction conditions, and characterization techniques. The effect of essential factors such as reagent concentration and preparation, temperature, and reaction atmosphere that control the size, morphology, and yield of synthesized AgNWs is reviewed. Moreover, a review on the novel modified polyol process and reactor design such as continuous millifluidic and flow reactors to increase the yield of synthesized AgNWs on large scales is provided. The most recent proposed growth mechanisms and kinetics behind the polyol process are addressed. Finally, comparatively few available studies in green and sustainable development of 1D silver nanostructures through the application of natural products with inherent growth termination, stabilization, and capping characteristics are reviewed to provide an avenue to natural synthesis pathways to AgNWs. Future directions in both chemical and green synthesis approaches of AgNWs are addressed.

show abstract

One-step synthesis of ultra-long silver nanowires of over 100 μm and their application in flexible transparent conductive films

Abstract: Ultra-long silver nanowires (100–160 μm) were applied in flexible transparent conductive films showing low sheet resistance and high optical transmittance.

Cited by 78 publications

References 36 publications

Development of Multi-Concentration Ag:Cu Bimetallic Nanoparticles as a Promising Bactericidal for Antibiotic-Resistant Bacteria as Per Molecular Docking Exploration

Development of Multi-Concentration Ag:Cu Bimetallic Nanoparticles as a Promising Bactericidal for Antibiotic-Resistant Bacteria as Per Molecular Docking Exploration

Electrochemical Reduction of CO₂ at Coinage Metal Nanodendrites in Aqueous Ethanolamine

Polyol Silver Nanowire Synthesis and the Outlook for a Green Process

Contact Info

Product

Resources

About

One-step synthesis of ultra-long silver nanowires of over 100 μm and their application in flexible transparent conductive films

Abstract: Ultra-long silver nanowires (100–160 μm) were applied in flexible transparent conductive films showing low sheet resistance and high optical transmittance.

Cited by 78 publications

References 36 publications

Development of Multi-Concentration Ag:Cu Bimetallic Nanoparticles as a Promising Bactericidal for Antibiotic-Resistant Bacteria as Per Molecular Docking Exploration

Development of Multi-Concentration Ag:Cu Bimetallic Nanoparticles as a Promising Bactericidal for Antibiotic-Resistant Bacteria as Per Molecular Docking Exploration

Electrochemical Reduction of CO2 at Coinage Metal Nanodendrites in Aqueous Ethanolamine

Polyol Silver Nanowire Synthesis and the Outlook for a Green Process

Contact Info

Product

Resources

About

Electrochemical Reduction of CO₂ at Coinage Metal Nanodendrites in Aqueous Ethanolamine