One-step synthesis of dendritic gold nanoflowers with high surface-enhanced Raman scattering (SERS) properties

Yi, Sijia; Sun, Leming; Lenaghan, Scott C.; Wang, Yongzhong; Chong, Xinyuan; Zhang, Zhili; Zhang, Mingjun

doi:10.1039/c3ra40716k

Cited by 58 publications

(52 citation statements)

References 42 publications

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“…It is known that the shape and size of Au nanocrystals have remarkable effects on their properties and applications [7][8][9]. Therefore, many efforts are focused on synthesizing Au nanostructures with different shapes such as rods [8], wires [10], spheres [11], flowers [12], dendrites [13], hollow structures [14], and so on [15,16].…”

Section: Introductionmentioning

confidence: 99%

l-Arginine-assisted electrochemical fabrication of hierarchical gold dendrites with improved electrocatalytic activity

Wang

et al. 2015

J Solid State Electrochem

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Shape and size c ontrol of gold (Au) nanocrystals plays important roles in their catalytic and optical properties. Hierarchical Au nanodendrites were directly electrodeposited on a glassy carbon electrode (GCE) using L-arginine as a growth-directing agent, while there is no seed, template, or surfactant involved. It was found that the experimental conditions such as the applied potentials, concentrations of HAuCl 4 and L-arginine, and deposition time were essential to the final morphology of the Au deposits. The as-synthesized Au nanocrystals displayed enhanced electrocatalytic activity and improved stability for ethylene glycol (EG) oxidation in acidic media as compared to Au nanoparticles.

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Section: Introductionmentioning

confidence: 99%

l-Arginine-assisted electrochemical fabrication of hierarchical gold dendrites with improved electrocatalytic activity

Wang

et al. 2015

J Solid State Electrochem

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“…Nobel metals, such as platinum (Pt), palladium (Pd), gold (Au), have been used in various areas for decades, including fuel cell catalysts, 1, 2 cell imaging, 3, 4 surface-enhanced Raman spectroscopy (SERS), [5][6][7] bio-sensing, 8 and drug delivery. 9,10 Particularly, rational design of noble metal nanostructures with favorable size, shape and composition provides wide opportunities to construct advanced electrocatalysts in fuel cells with high activity and stability.…”

Section: Introductionmentioning

confidence: 99%

Facile One-Step Synthesis of Three-Dimensional Pd–Ag Bimetallic Alloy Networks and Their Electrocatalytic Activity toward Ethanol Oxidation

Zhu

et al. 2015

ACS Appl. Mater. Interfaces

180

105

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The three-dimensional palladium networks and palladium-silver bimetallic alloy networks were synthesized at room temperature on a large scale using a rapid and simple strategy. The results revealed that the morphology of the networks is not affected by the composition. We demonstrated that the as-prepared unsupported networks exhibited excellent electrochemical activity and stability toward ethanol oxidation reaction in alkaline media due to the formation of palladium-silver alloys as well as the porous nanostructures. The results indicate that the well-defined three-dimensional palladium-silver bimetallic alloy networks are promising catalysts for fuel cells.

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“…The principle parameters of NPs are ''size, shape, surface characteristics and inner structure'' (Kaddour 2013). The special features and properties of nanoparticles like catalytic property, optical property, surface-enhanced Raman scattering (Yi et al 2013) and chemical strength (Forough and Farhadi 2010) are attributed to high fraction of surface atoms and quantum confinement (Dunn 2004;Feynman 1960;Forough and Farhadi 2010).…”

Section: Introductionmentioning

confidence: 99%

Green synthesis and characterization of silver nanoparticles using Cydonia oblong seed extract

et al. 2016

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The green synthesis of nanoparticles has emerged as a cost-effective and environmentally benign technique. The present study describes the synthesis of silver nanoparticles (Ag-NPs) using a seed extract of Cydonia oblonga. The conditions were optimized by adjusting pH, temperature, time and amount of seed extract. The nanoparticles produced were characterized by different techniques, namely UV-visible spectroscopy, Fourier transmission infrared spectroscopy (FTIR), X-ray diffraction (XRD) and scanning electron microscopy. The formation of Ag-NPs was confirmed by UV-visible spectroscopic analysis. FTIR analysis was performed to identify the biomolecules, which played a key role in the reduction of Ag ? ions. XRD confirmed that the silver nanoparticles possessed face-centered cubic structure. The green chemistry approach has proven that Ag-NPs can be synthesized by using plant extract in which biomolecules effectively act as capping and reducing agent.

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One-step synthesis of dendritic gold nanoflowers with high surface-enhanced Raman scattering (SERS) properties

Cited by 58 publications

References 42 publications

l-Arginine-assisted electrochemical fabrication of hierarchical gold dendrites with improved electrocatalytic activity

l-Arginine-assisted electrochemical fabrication of hierarchical gold dendrites with improved electrocatalytic activity

Facile One-Step Synthesis of Three-Dimensional Pd–Ag Bimetallic Alloy Networks and Their Electrocatalytic Activity toward Ethanol Oxidation

Green synthesis and characterization of silver nanoparticles using Cydonia oblong seed extract

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