A novel strategy for the oxidation of Mg-based intermetallic compounds
using CO<sub>2</sub> as an oxidizing agent was realized via simple thermal
treatment, called ‘CO2-thermic Oxidation Process (CO-OP)’. Furthermore, as a
value-added application, electrochemical properties of one of the reaction
products (carbon-coated macroporous silicon) was evaluated. Considering the
facile tunability of the chemical/physical properties of Mg-based
intermetallics, we believe that this route can provide a simple and versatile
platform for functional energy materials synthesis as well as CO<sub>2</sub> chemical
utilization in an environment-friendly and sustainable way.