Preparation of Pt-Ru-Ni ternary nanoparticles by microemulsion and electrocatalytic activity for methanol oxidation |
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| Authors: | Xin Zhang Feng Zhang Kwong-Yu Chan |
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| Affiliation: | a Department of Chemistry, Shantou University, Shantou 515063, China
b Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China |
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| Abstract: | Ternary platinum-ruthenium-nickel nanoparticles are prepared by water-in-oil reverse microemulsions of water/Triton X-100/propanol-2/cyclohexane. Nanoparticles formed in the microemulsions are characterized by transmission electron microscopy (TEM), electron diffraction (ED), X-ray diffractometry (XRD), energy dispersive X-ray analysis (EDX). These resulting materials showed a homogenous alloy structure, the mono-dispersion and an average diameter of 2.6 ± 0.3 nm with a narrow particle size distribution. The composition and particle size of ternary Pt-Ru-Ni nanoparticles can be controlled by adjusting the initial metal salt solution and preparation conditions. Pt-Ru-Ni ternary metallic nanoparticles showed an enhanced catalytic activity towards methanol oxidation compared to Pt-Ru bimetallic nanoparticles. |
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| Keywords: | A Nanostructures B Chemical synthesis D Catalytic properties D Electrochemical properties |
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