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- W1996067402 abstract "Polyaniline (PANI) has been an effective matrix for hosting and preserving metal nanoclusters. In the case of gold, the tetrachloroaurate anion has a high affinity for the imine sites of PANI. Upon contact with PANI, is spontaneously reduced to metallic gold, but the size of the formed Au clusters cannot be precisely controlled. Herein, we report on the electrochemical method of controlled deposition of one atom by one atom of gold per imine site of PANI. By controlling the potential, we keep PANI in an oxidized state while exposing it to a solution of to form a complex, which is reduced to atomic gold by sweeping the potential negative. This frees up the imine sites of PANI again and makes them accessible for the next Au deposition cycle. The repeated deposition of Au atoms follows a cyclic pathway. The amount of gold deposited using this method is consistent for each repeated cycle." @default.
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- W1996067402 date "2010-01-01" @default.
- W1996067402 modified "2023-10-18" @default.
- W1996067402 title "Electrochemically Controlled Atom by Atom Deposition of Gold to Polyaniline" @default.
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- W1996067402 doi "https://doi.org/10.1149/1.3474932" @default.
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