Preparing of Silver Nanoparticles by Selective Dissolving of Aluminium Matrix

Ivo Marek; Alena Michalcová; Dominika Harabišová; Dalibor Vojtěch

doi:10.4028/www.scientific.net/KEM.592-593.325

Paper Titles

Grain Refinement and Deformation Behaviour of Medium Carbon Steel Processed by ECAP
p.307

Deformation Mechanisms in Ultrafine-Grained Zn at Different Strain Rates and Temperatures
p.313

Interface Influence on Dispersion Dynamic of Metal Nanowires under Electric Pulse Loading
p.317

Details of the Formation of Superstructures in the Process of Ordering in Cu-Pt Alloys
p.321

Preparing of Silver Nanoparticles by Selective Dissolving of Aluminium Matrix
p.325

Glass Surface Refining by Deposition of Nano-Particles
p.329

Quantum-Mechanical Study of Single-Crystalline and Polycrystalline Elastic Properties of Mg-Substituted Calcite Crystals
p.335

Porous Magnesium for Medical Applications - Influence of Powder Size on Mechanical Properties
p.342

Fractographic Analysis of Surface and Failure Mechanisms of Nanotitanium after Laser Shock-Wave Treatment
p.346

HomeKey Engineering MaterialsKey Engineering Materials Vols. 592-593Preparing of Silver Nanoparticles by Selective...

Preparing of Silver Nanoparticles by Selective Dissolving of Aluminium Matrix

Abstract:

Metallic nanoparticles and nanocrystalline bulk materials are recently extremely popular. It is because of their properties and wide field of possible applications.In this work, silver nanoparticles were prepared by selective dissolving of the aluminium matrix from rapidly solidified (RS) AlAg30 (wt. %) alloy in the sodium hydroxide solution. This alloy was prepared by melt-spinning technique. The influence of production parameters such as sodium hydroxide concentration, dissolving temperature and using of ultrasound bath on the phase composition, morphology and size of the nanoparticles was studied.Phase compositions of the initial alloy and prepared nanoparticles were investigated by X-ray phase analysis. Furthermore, the nanoparticles were studied by means of transmission (TEM) electron microscope. Nanoparticle size was determined by image analysis of TEM micrographs and these results were also compared to the size of nanoparticles determined from diffraction patterns using Scherrer calculator.It was found that concentration of sodium hydroxide has significant effect on phase composition of the product and the dissolving temperature influences the particle size.