Issue 38, 2020

Investigating the role of reducing agents on mechanosynthesis of Au nanoparticles

Abstract

Control over the bottom up synthesis of metal nanoparticles (NP) depends on many experimental factors, including the choice of stabilising and reducing agents. By selectively manipulating these species, it is possible to control NP characteristics through solution-phase synthesis strategies. It is not known, however, whether NPs produced from mechanochemical syntheses are governed by the same rules. Using the Au NPs mechanosynthesis as a model system, we investigate how a series of common reducing agents affect both the reduction kinetics and size of Au NPs. It is shown that the relative effects of reducing agents on mechanochemical NP synthesis differ significantly from their role in analogous solution-phase reactions. Hence, strategies developed for control over NP growth in solution are not directly transferrable to environmentally benign mechanochemical approaches. This work demonstrates a clear need for dedicated, systematic studies on NP mechanosynthesis.

Graphical abstract: Investigating the role of reducing agents on mechanosynthesis of Au nanoparticles

Supplementary files

Article information

Article type
Paper
Submitted
08 6 2020
Accepted
23 7 2020
First published
23 7 2020

CrystEngComm, 2020,22, 6261-6267

Investigating the role of reducing agents on mechanosynthesis of Au nanoparticles

P. F. M. de Oliveira, A. A. L. Michalchuk, J. Marquardt, T. Feiler, C. Prinz, R. M. Torresi, P. H. C. Camargo and F. Emmerling, CrystEngComm, 2020, 22, 6261 DOI: 10.1039/D0CE00826E

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