Formation of long-lived silver clusters in aqueous solution by anodic dispersion

Article Abstract:

Long-lived, subnanometer-sized silver clusters can be synthesized by anodic dispersion of a silver electrode in aqueous NaOH solutions (pH 10.5-12) without stabilizing polymers. The synthetic approach involves the application of a direct current voltage between two silver electrodes and produces a variety of clusters, oxides and colloids. The oxides and large metallic colloids can be removed by centrifugation, leaving small clusters and colloids in the solution.

Metals, Organic compounds, Dispersion, Dispersion (Optics), Nuclear polarization, Silver compounds, Organic compound synthesis, Polarization (Nuclear physics), Anodizing

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Toward infinite-dilution voltammetry

Article Abstract:

A study was conducted to determine reversible half-wave potentials for two reduction waves of 7,7,8,8-tetracyanoquinodimethane and the oxidation wave of ferrocene using steady-state microelectrode voltammetry. Microelectrodes were utilized to minimize the effects of solution resistance. Experimental results indicated the feasibility of determining measurements of half-wave potentials at low electrolyte concentrations using microelectrodes.

Usage, Oxidation-reduction reaction, Oxidation-reduction reactions, Electrolytes, Voltammetry

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