Size-Controlled Synthesis of Colloidal Silver Nanoparticles
Based on Mechanistic Understanding
Maria Wuithschick
Benjamin Paul
Ralf Bienert
Adnan Sarfraz
Ulla Vainio
Michael Sztucki
Ralph Kraehnert
Peter Strasser
Klaus Rademann
Franziska Emmerling
Jörg Polte
10.1021/cm401851g.s001
https://acs.figshare.com/articles/journal_contribution/Size_Controlled_Synthesis_of_Colloidal_Silver_Nanoparticles_Based_on_Mechanistic_Understanding/2344624
Metal
nanoparticles have attracted much attention due to their
unique properties. Size control provides an effective key to an accurate
adjustment of colloidal properties. The common approach to size control
is testing different sets of parameters via trial and error. The actual
particle growth mechanisms, and in particular the influences of synthesis
parameters on the growth process, remain a black box. As a result,
precise size control is rarely achieved for most metal nanoparticles.
This contribution presents an approach to size control that is based
on mechanistic knowledge. It is exemplified for a common silver nanoparticle
synthesis, namely, the reduction of AgClO<sub>4</sub> with NaBH<sub>4</sub>. Conducting this approach allowed a well-directed modification
of this synthesis that enables, for the first time, the size-controlled
production of silver nanoparticles 4–8 nm in radius without
addition of any stabilization agent.
2013-12-10 00:00:00
Colloidal Silver Nanoparticles
size control
Mechanistic UnderstandingMetal nanoparticles
particle growth mechanisms
NaBH 4. Conducting
approach
silver nanoparticle synthesis
parameter