AN ELECTROCHEMICAL PROCESS FOR PREPARING A COMPOUND COMPRISING A METAL OR METALLOID AND A PEROXIDE, IONIC OR RADICAL SPECIES

摘要

The present invention relates to an electrochemical process for recovering a metal element or a metalloid element or a mixture of two or more thereof from at least one water soluble precursor compound comprising the metal element or a metalloid element or two or more thereof, in the form of one or more nano particles, in particular nano crystals of at least one reaction product. The process comprises the steps of supplying the water soluble precursor compound to a water-based catholyte of a cathode compartment of an electrochemical cell, equipped with a cathode comprising a gas diffusion electrode, adjusting the pH of the catholyte, supplying at least one oxidant gas to the gas diffusion electrode, subjecting the cathode to an electrochemical potential to cause reduction of the at least one oxidant gas.