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Issue 25, 2011
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Opportunistic use of tetrachloroaurate photolysis in the generation of reductive species for the production of gold nanostructures

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Abstract

The photolysis of gold salts is rarely viewed as the initiation for gold nanoparticle (AuNP) formation. Yet, photolysis of AuCl4 generates chlorine atoms whose rich hydrogen transfer chemistry can readily generate strongly reducing radicals. Interesting precursors include hydrogen peroxide, 2-propanol, 1,4-cyclohexadiene and tetrahydrofuran; all of them yield strongly reducing radicals. Further, this group of substrates has been selected because of the innocuous and volatile nature of reagents and products, thus allowing a remarkably clean synthesis of gold nanostructures. In the case of H2O2 the by-products are water and oxygen. The methodology reported here opens the door to particles that can be modified in situ or post-synthesis with custom surface covering without concern for chemical debris from the nanostructure synthesis.

Graphical abstract: Opportunistic use of tetrachloroaurate photolysis in the generation of reductive species for the production of gold nanostructures

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Publication details

The article was received on 04 Feb 2011, accepted on 03 May 2011 and first published on 31 May 2011


Article type: Paper
DOI: 10.1039/C1CP20308H
Citation: Phys. Chem. Chem. Phys., 2011,13, 11914-11918
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    Opportunistic use of tetrachloroaurate photolysis in the generation of reductive species for the production of gold nanostructures

    K. L. McGilvray, J. Granger, M. Correia, J. T. Banks and J. C. Scaiano, Phys. Chem. Chem. Phys., 2011, 13, 11914
    DOI: 10.1039/C1CP20308H

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