Partially oxidized titanium carbonitride as a non-noble catalyst for oxygen reduction reactions
Dam, Duc Tai
Date of Issue2012
School of Chemical and Biomedical Engineering
Partially oxidized titanium carbonitride (TiCNO), newly synthesized from partial oxidation of TiC0.5N0.5 powder under a flow rate of 500 cm3 min−1 of nitrogen containing 4% H2 and 0.5% O2 by volume at 800 °C for 20 h, is examined as a non-platinum cathode for polymer electrolyte membrane fuel cells (PEMFCs). TiCNO shows significantly enhanced electrocatalytic activity for the oxygen reduction reaction (ORR) compared with as-prepared TiC0.5N0.5 and fully oxidized TiO2. In addition, TiCNO has a high chemical stability in 0.1 mol dm−3 sulfuric acid at 30 °C.
International journal of hydrogen energy
© 2012 Hydrogen Energy Publications, LLC.