Issue 7, 2010
From the journal:

Chemical Communications

Stop-and-go, stepwise and “ligand-free” nucleation, nanocrystalgrowth and formation of Au-NPs in ionic liquids (ILs)†

Engelbert Redel,a   Michael Walter,*b   Ralf Thomann,b   Laith Hussein,b   Michael Krügerb  and  Christoph Janiak*a  

* Corresponding authors

a Institut für Anorganische und Analytische Chemie, Universität Freiburg, Albertstr. 21, D-79104 Freiburg, Germany
E-mail: janiak@uni-freiburg.de
Tel: +49 761 2036127

b Freiburger Material Forschungszentrum, Institut für Mikrosystemtechnik, Universität Freiburg, Stefan-Meier-Str. 21 and Georg Köhler Allee 103, 79104 Freiburg, Germany
E-mail: michael.walter@fmf.uni-freiburg.de

Abstract

Ionic liquids function as a nanosynthetic template for a “ligand-free” stepwise formation of gold nanoparticles (Au-NPs) which can be stopped and resumed at different color steps and Au-NP sizes (between 2.6 and 200 nm median diameter) and which can be reasoned by the DFT-calculation stabilization order: H2O (no Au-NP stabilization) < IL anion, e.g. BF4− ≈ PH3 < citrate <Cl− (which inhibits Au-NP growth).

Graphical abstract: Stop-and-go, stepwise and “ligand-free” nucleation, nanocrystal growth and formation of Au-NPs in ionic liquids (ILs)

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Article information

DOI
https://doi.org/10.1039/B921744D
Article type
Communication
Submitted
19 Oct 2009
Accepted
02 Dec 2009
First published
04 Jan 2010

Chem. Commun., 2010,46, 1159-1161

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Stop-and-go, stepwise and “ligand-free” nucleation, nanocrystal growth and formation of Au-NPs in ionic liquids (ILs)

E. Redel, M. Walter, R. Thomann, L. Hussein, M. Krüger and C. Janiak, Chem. Commun., 2010, 46, 1159 DOI: 10.1039/B921744D

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