Controlling Size of Gold Clusters in Polyaniline from Top-Down and from Bottom-Up
2008
Abstract Polyaniline forms a strong complex with chloroaurate at the protonated imine sites. Here we report on an electrochemical procedure that allows preparation of gold clusters by adding gold atoms one-by-one (“bottom–up” approach). It is contrasted with the “top–down” approach in which the growth of multi-atom Au clusters was also controlled electrochemically. Our results confirm that both the amount and the size of gold clusters affect the properties of the composite material.
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