||I U P A C
Organizations & People
Pure Appl. Chem. Vol.
72, Nos. 1-2, pp. 83-90, 2000
Special Topic Issue on the Theme of
Binary cooperative complementary nanoscale interfacial materials.
Reduction of silver nanoparticles in DMF. Formation of monolayers and
Isabel Pastoriza-Santos and Luis M. Liz-Marzán*
*Departamento de Química Física, Universidade
de Vigo, E-36200 Vigo, Spain
Abstract: We explore in this article the reduction of Ag + ions
by N,N-dimethylformamide (DMF), both in the presence and in the absence
of a stabilizing agent. The reduction can lead to the formation of either
thin films of silver nanoparticles electrostatically attached onto glass
surfaces, or stable dispersions of silver nanoparticles if the silane
coupling agent 3-aminopropyltrimethoxysilane (APS) is present. The different
parameters affecting the reduction process are discussed, and the reducing
ability of DMF is compared with that of ethanol, which is often used
for the production of catalytically active metal colloids.
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