ChemInform Abstract: Gold Nanorods: Electrochemical Synthesis and Optical Properties.

Abstract

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Synthesis and Measurement of Noble Metal Nanoparticles with Well-Defined Shapes by Electrochemical and Electroless Approaches

“…31 More recent examples have also substituted deep eutectic solvents, which are conductive ionic liquids. 32 While these classic electrolytes are often used, the common solutions employed in colloidal nanoparticle growth reactionsaqueous solutions of surfactants such as cetyltrimethylammonium chloride or bromide (CTAC or CTAB) 24,33 and even ion-depleted solutions like water 34 -are also able to produce shaped particles under electrochemical growth conditions if there is a reasonable overall concentration of other ionic components in solution, such as the electroactive metal and halide ions.…”

“…Gold nanorods with tunable aspect ratios were produced by Yu et al via an electrochemical synthesis approach as early as 1997. 33 In a synthesis very different than the previous ones described in this review, a multi-electrode experimental setup was constructed that consisted of a gold plate counter electrode (anode) and a platinum plate working electrode (cathode) immersed in a water-based solution containing CTAB, a secondary surfactant with differing hydrophobicity, and acetone. Notably, this growth solution included no metal salt.…”