Issue 8, 2018
From the journal:

New Journal of Chemistry

Ligand free green plasma-in-liquid synthesis of Au/Ag alloy nanoparticles

David Čempel,a   Mai Thanh Nguyen, ORCID logo a   Yohei Ishida, ORCID logo a   Tomoharu Tokunagab  and  Tetsu Yonezawa ORCID logo *a  

* Corresponding authors

a Division of Materials Science and Engineering, Faculty of Engineering, Hokkaido University, Kita 13 Nishi 8, Kita-ku, Sapporo, Hokkaido 060-8628, Japan
E-mail: tetsu@eng.hokudai.ac.jp

b Department of Materials Science and Engineering, Faculty of Engineering, Nagoya University, Furo-cho, Chikusa, Nagoya 464-8603, Japan

Abstract

Au/Ag alloy nanoparticles (NPs) were successfully prepared by a one step synthesis using HAuCl4 and [Ag(NH3)2]+ as the corresponding precursors in a microwave-induced plasma in liquid process (MWPLP) without the addition of any organic protecting or reducing agents. The time dependent reduction and particle formation during the 140 min plasma discharge were studied with TEM, UV-vis extinction spectra, and ICP-OES. After 140 min, the HAADF-STEM and EDX results indicated that the obtained Au/Ag NPs were alloy NPs. Varying the input molar ratios of the metal precursors allowed for control of the composition of the Au/Ag alloy NPs.

Graphical abstract: Ligand free green plasma-in-liquid synthesis of Au/Ag alloy nanoparticles

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Article information

DOI
https://doi.org/10.1039/C7NJ05154A
Article type
Paper
Submitted
28 Dec 2017
Accepted
05 Mar 2018
First published
06 Mar 2018

New J. Chem., 2018,42, 5680-5687

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Ligand free green plasma-in-liquid synthesis of Au/Ag alloy nanoparticles

D. Čempel, M. T. Nguyen, Y. Ishida, T. Tokunaga and T. Yonezawa, New J. Chem., 2018, 42, 5680 DOI: 10.1039/C7NJ05154A

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