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Effect of pH on Nanoparticle Structure in Radiochemical Synthesis of PtCu Alloy Supported on γ-Fe2O3 and Carbon
Published online by Cambridge University Press: 18 January 2016
Abstract
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 nanoparticle structure.
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