| Abstract
| - Highly ordered titania nanotube arrays are fabricated by anodic oxidation of titanium in a fluoride-ion-containingelectrolyte. In this work Co−Ag−Pt nanoparticles, approximately 20 nm in diameter, are electrochemicallydeposited inside the nanotubes and the catalytic properties of the resultant architecture examined using Mn2+/Mn3+ as the probe. The effect of Co, Ag, and Pt loading content on the catalytic activity is investigated. Incomparison to a Pt electrode, the oxidation potential of the Co−Ag−Pt/titania nanotube array electrode isnegatively shifted by 93 mV and the peak current increased by a factor of 9.
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