PtCu nanoparticles were synthesized with different pH and support conditions
using radiochemical process. The nanoparticle structures were characterized by
transmission electron microscopy, inductively coupled plasma atomic emission
spectrometry, X-ray absorption spectroscopy, and X-ray diffraction techniques.
The nanoparticle structure was relevant to the pH of the precursor solutions.
The lattice parameter of PtCu alloy increased in high pH samples, which
indicates the critical effect of metal ion adsorption in precursor solution on