Methylviologen mediated electrochemical reduction of AgCl-A new route to produce a silica core/Ag shell nanocomposite material in solution

Methylviologen mediated electrochemical reduction of AgCl precipitate to Ag-0 in the presence of alkylamino-modified silica nanoparticles (SiO2-NHR) in an aqueous medium was performed. The main products of reduction at potentials of the MV2+/MV center dot(+) redox couple are spherical SiO2-NHR/Ag core/shell nanoparticles (size range 120-160 nm) in solution. (C) 2015 Elsevier B.V. All rights reserved.