Anthracene mediated electrochemical synthesis of metallic cobalt nanoparticles in solution

Abstract

© 2015 Elsevier Ltd. All rights reserved. The metallic cobalt nanoparticles in the bulk solution were obtained by antracene mediated reduction of [CoCl<inf>4</inf>]^2- in the potentiostatic electrolysis in an undivided cell at the potential of the anthracene reduction to radical anion at room temperature in DMF/0.1 M Bu<inf>4</inf>NCl media. [CoCl<inf>4</inf>]^2- ions are generated by the sacrificial cobalt anode dissolution during the electrolysis. The metal particles are oxidized upon contact with the air to form the oxidized cobalt nanoparticles with a low dispersity (20-30 nm).