Influence of CO₂ and H₂O on Air Oxidation of Mg Nanoparticles Studied by NEXAFS

Abstract

Influence of CO₂ and H₂O on the air oxidation reaction of Mg nanoparticles has been investigated by Mg K-edge NEXAFS technique. The water vapor in the air causes rapid progression on the air oxidation reaction of the Mg nanoparticles. The basic magnesium carbonate (4(MgCO₃).Mg(OH₂).4(H₂O) : BMC) is formed by the long term exposure to air. The NEXAFS analysis shows an existence of several intermediates of the BMC formation reaction.