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Condens. Matter 2018, 3(2), 13; https://doi.org/10.3390/condmat3020013

Formation and Oriented Aggregation of Tabular Hexagonal Silver Particles

CNR-ISM Istituto Struttura della Materia, Via Salaria km 29,300, 00015 Monterotondo Stazione, Italy
Received: 22 February 2018 / Revised: 4 April 2018 / Accepted: 12 April 2018 / Published: 14 April 2018
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Abstract

Silver tabular hexagonal particles (<diagonal> = 200 nm) were prepared at 40 °C by the reduction of silver nitrate with ascorbic acid in a solution of a polynaphthalene sulphonic dispersant agent, Daxad 19, in strong acidic conditions. By varying the reaction temperature and thus the dispersion viscosity between 10 °C and 30 °C, mesostructures of silver flat rods and flakes were obtained, the former resulting from linear aggregation of tabular hexagonal particles and the latter formed by intertwined flat rods. The results indicate an easy way to tune the aggregation of particles to obtain ordered mesostructures. View Full-Text
Keywords: metal nanoparticles; 1D and 2D nanoparticle structures; nanoparticle oriented aggregation metal nanoparticles; 1D and 2D nanoparticle structures; nanoparticle oriented aggregation
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Suber, L. Formation and Oriented Aggregation of Tabular Hexagonal Silver Particles. Condens. Matter 2018, 3, 13.

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