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Amide-based Room Temperature Molten Salt as Solvent cum Stabilizer for Metallic Nanochains

Narayanan, NS Venkata and Sampath, S (2009) Amide-based Room Temperature Molten Salt as Solvent cum Stabilizer for Metallic Nanochains. In: Journal of Cluster Science, 20 (2). pp. 375-387.

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A simple and efficient method for spontaneous organization of long assemblies of gold nanoparticles is described. This is achieved in a molten solvent containing acetamide, urea and ammonium nitrate that acts as a solvent cum stabilizer. There is no external aggregating agent or stabilizing agent added to the system. Depending on the concentration of the metal salt in the ternary melt, either chain-like assemblies or individual nanoparticles could be obtained. The amine groups present in the components of the melt (acetamide and urea) help in the stabilization of nanoparticles. Ammonium ions present in the eutectic mixture are likely to assist in the organization of the particles. The method is simple, highly reproducible and does not require any templating agent for the formation of chain-like assemblies.

Item Type: Journal Article
Additional Information: copyright of this article belongs to Springer.
Keywords: Gold nanoparticles;Aggregation;Room temperature molten solvent;Acetamide-based eutectics.
Department/Centre: Division of Chemical Sciences > Inorganic & Physical Chemistry
Depositing User: Id for Latest eprints
Date Deposited: 28 Aug 2009 08:49
Last Modified: 19 Sep 2010 05:42
URI: http://eprints.iisc.ac.in/id/eprint/22632

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