Facile synthesis of trimetallic Au@PdPt nanowires-networks with in situ Au nanowires as templets for methanol oxidation

Abstract Trimetallic Au69.8@Pd8.7Pt21.5 nanowires-networks with well-defined alloyed PdPt shells are successfully prepared by finely tuning the Au-Pd-Pt molar ratios, and the time intervals between Pd and Pt ions using in situ Au nanowires as templets. The as-prepared trimetallic alloyed Au69.8@Pd8.7Pt21.5 nanowires-networks show excellent electrocatalytic performance (781 mA mgPt−1, 1.15 mA cm−2, and 67.8 m2 gPt−1), which are significantly higher than commercial Pt black (120 mA mgPt−1, 0.85 mA cm−2, and 14.1 m2 gPt−1) on methanol oxidation reaction (MOR).