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High surface area Magnèli Phase Titanium Oxides (MPTOs), synthesized by high temperature reduction and mechanical milling of TiO 2  as a catalyst support material for a polymer electrolyte fuel cells (PEFCs). Pt as an active metal distributed on the prepared supports by impregnation-reduction method. The catalyst structure and composition of the Pt/HS_MPTO were determined by X-ray diffractometer (XRD), Field Emission Transmission Electron Spectroscopy (FE-TEM) and Inductively Coupled Plasma-Atomic Emission Spectrometer (ICP). The catalytic activity for the oxygen reduction reaction (ORR) and stability against high potential were examined and compared with commercial Pt/C catalyst. The durability of Pt/HS_MPTO catalysts was examined by potential holding at 1.3 V for 24 h.  Pt/HS_MPTO catalyst showed nearly no changes in the half-wave potentials representing much higher durability compared to the commercial Pt/C catalysts.

Highly Durable Metal-Oxides as an Alternative Catalyst Supports for PEFCs