Metal phosides, carbides, nitrides, sulfides and oxides
Since 2016, we are interested in material classes such as metal phosphides, carbides, nitrides, sulphides and oxides. Often declared as ceramic materials, they potentially offer metallic conductivity, higher corrosion resistance and enhanced catalytic activity in comparison to their metal congeners. In the beginning of our journey, the catalytic behaviour of these structure was in the centre of our attention, especially for the hydrogen evolution reaction. Intrigued by their properties, we found new application area as e.g. the oxygen reduction reaction. Besides its metallic character, the increased proportion of covalent bonding expressed in the transition metal-carbon bond enthalpy of e.g. transition metal carbides adds additional stabilization to the system. The metal-carbon bond enthalpy of various carbide materials correlates linearly with the onset of oxidation.