Facile synthesis of PtCu nanowires with enhanced electrocatalytic activity
platinum, copper, nanowires, electrooxidation, activity
Using Te nanowires as a sacrificial template, we developed a facile wet-chemical method for the synthesis of bimetallic PtCu nanowires. The as-prepared PtCu nanowires possess a porous structure and high aspect ratio. Transmission electron microscopy, X-ray diffraction, energy dispersive spectroscopy, energy dispersive X-ray spectrum elemental mapping, inductively coupled plasmamass spectroscopy, and X-ray photoelectron spectroscopy (XPS) measurement techniques are used to analyze the structure and composition of the as-prepared nanowires. The XPS results verify that the incorporation of Cu led to the modified electronic state of Pt. Electrocatalytic results prove that the as-prepared nanowires present superior activity for methanol and ethanol electrooxidation in an alkaline solution.
Tsinghua University Press
Wei Hong,Jin Wang,Erkang Wang, Facile synthesis of PtCu nanowires with enhanced electrocatalytic activity. NanoRes.2015, 8(7): 2308–2316