Abstract

ABSTRACTThis article reviews recent advances in the shape-controlled synthesis routes of hierarchical Ag dendritic nanostructures. Various fabricated techniques, with or without templates or surfactants, electrochemical method and sonochemical, microwave or photochemical assisted synthesis method, can be amazingly effective in the dendritic Ag nanostructures synthesis, if synthetic parameters are carefully selected. The involved synthesis mechanism are discussed in order to control the limited factors along the fabricated progress efficiently and then to find new synthetic means. Also, the blemish of the above synthesis routes that hinders the practical application is pointed out to inspire the future research.

Highlights

  • There has been a tremendous attention in the design and fabrication of noble metal nanostructures of complex morphologies due to their prominent anti-bacterial [1,2,3], catalytic [4,5] and optical properties [6,7]

  • The results revealed that the concentration of silver ions, reaction time and temperature could affect the Ag dendrites formation

  • Mg reacts with AgNO3 solution can form single-crystal Ag dendrites, which grow along a preferential direction at the beginning is similar to the other replacement reaction and shows a good uniformity

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Summary

Introduction

There has been a tremendous attention in the design and fabrication of noble metal nanostructures of complex morphologies due to their prominent anti-bacterial [1,2,3], catalytic [4,5] and optical properties [6,7]. It stands out among other nanostructures due to its large surface area and its unique interfacial structure towards adding substrate or metals, which bring its amazing application in surface-enhanced Raman scattering (SERS) [19,20], surface-enhanced fluorescence [21], super-hydrophobic [22,23,24], antibacterial [25,26], chemical sensors [27,28] and catalysis [29,30,31]. Shapecontrolled mechanism of Ag dendritic nanostructure is discussed as well

Ag dendrites fabrication via direct growth
Ag dendrites fabrication via template method
Ag dendrites fabrication via electrochemical method
Ag dendrites fabrication via other methods
Growth mechanisms of dendritic Ag nanoparticles
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