Cheers for titania: An N-doped composite of carbon nanotubes (CNTs) and mesoporous TiO2 is used as support for Pt nanoparticles applied in the oxygen reduction reaction. The composite Pt/N-TiO2-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 TiO2 and Pt and a higher corrosion resistance of TiO2 as well as CNTs.
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