Enhanced electrocatalytic stability of platinum nanoparticles supported on a nitrogen-doped composite of carbon nanotubes and mesoporous titania under oxygen reduction conditions.

Cheers for titania: An N-doped composite of carbon nanotubes (CNTs) and mesoporous TiO(2) is used as support for Pt nanoparticles applied in the oxygen reduction reaction. The composite Pt/N-TiO(2) -CNT shows a higher stability than Pt particles on carbon black or N-doped CNTs, as indicated by accelerated stress tests of up to 2000 cycles. The enhanced stability is attributed to strong interactions between TiO(2) and Pt and a higher corrosion resistance of TiO(2) as well as CNTs.