Coaxial TiN-CNT Composites as Effective Low Temperature Fuel Cell Electrocatalyst Supports

Coaxial titanium nitride (TiN) coated carbon nanotubes (TiN-CNTs) were fabricated by a simple two-step procedure. These novel materials were utilized as Pt electrocatalyst support materials for the oxygen reduction reaction (ORR) and methanol oxidation reaction (MOR). By effectively coupling the unique physicochemical properties of TiN and CNTs, improved performance in comparison to commercial Pt/C was observed, indicative of the favourable catalyst-support interactions provided.