Metal nanoparticles soft templates

Nanoporous carbon with narrow pore-size distribution can be prepared directly via a one-step nanocasting technique by carbonization of cyclodextrin-silica organic-inorganic hybrid composite.[260] The method consists of preparing a cyclodextrin-templated silica mesophase via soft chemistry, followed by direct carbonization of the occluded cyclodextrins. The nanocasting procedure provides granules (in millimeter scale) or monoliths (in centimeter scale). Cyclodextrins can be employed not only as structuredirecting templates but also as carriers for metal nanoparticle precursors. 

The electrochemical route for the synthesis of metal nanomaterials foresees the electrochemical oxidation-reduction of metal complexes accomplished in a simple two- [76] or three- [77] electrode t3 e cell. The electrodes are immersed in an electrolytic solution basically composed of soft-templating molecules which operate in the reaction domain both as shape-inducing reagents stabilizing and delineating the nanoparticles shape and size and furthermore as supporting electrol3 e [76, 78, 79]. A two-electrode setup is sketched in Fig. 10.3a. 

Sahiner, N., Kaynak, A., Butun, S., 2012b. Soft hydrogels for dual use template for metal nanoparticle synthesis and a reactor in the reduction of nitrophenols. Journal of Non-CrystalUne SoUds 358, 758—764. 

G.A. Seisenbaeva and V.G. Kessler, Precursor directed synthesis - molecular mechanisms in the Soft Chemistry approaches and their use for template-free synthesis of metal, metaloxide and metal chalcogenide nanoparticles and nanostructures, Nanoscale, Vol. 4, pp. 6229-6244,2004. 

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