Synthesis of Monodispersed Pt-Ni Alloy Nanodendrites and Their Electrochemical Properties

摘要

Structure-controlled Pt-based catalysts have been known to exhibit improved electrocatalytic activitiesdue to particularly modulated surface structures favorable for alcohol electrooxidation. We report Pt- Ni alloy dendrite structure for formic acid electrooxidation prepared by a thermal decompositionmethod. The Pt-Ni nanodendrites display 3-dimentional nanostructure and homogeneous alloyformation between Pt and Ni. In formic acid electrooxidation, the Pt-Ni alloy nanodendrite catalystexhibits much improved electrocatalytic activity.