Investigating the role of reducing agents on mechanosynthesis of Au nanoparticles

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http://hdl.handle.net/10138/332534

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de Oliveira , P F M , Michalchuk , A A L , Marquardt , J , Feiler , T , Prinz , C , Torresi , R M , Camargo , P H C & Emmerling , F 2020 , ' Investigating the role of reducing agents on mechanosynthesis of Au nanoparticles ' , CrystEngComm , vol. 22 , no. 38 , pp. 6261-6267 . https://doi.org/10.1039/d0ce00826e

Title: Investigating the role of reducing agents on mechanosynthesis of Au nanoparticles
Author: de Oliveira, Paulo F. M.; Michalchuk, Adam A. L.; Marquardt, Julien; Feiler, Torvid; Prinz, Carsten; Torresi, Roberto M.; Camargo, Pedro H. C.; Emmerling, Franziska
Contributor: University of Helsinki, Helsinki Institute of Sustainability Science (HELSUS)
Date: 2020-10-14
Language: eng
Number of pages: 7
Belongs to series: CrystEngComm
ISSN: 1466-8033
URI: http://hdl.handle.net/10138/332534
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.
Subject: ANISOTROPIC METAL NANOPARTICLES
MECHANOCHEMICAL SYNTHESIS
GOLD NANOPARTICLES
SILVER NANOPARTICLES
COMMINUTING DEVICES
OPTICAL-PROPERTIES
SHAPE CONTROL
KINETICS
MECHANISM
NANOCRYSTALS
116 Chemical sciences
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