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Ni@Pt core-shell nanoparticles as an improved electrocatalyst for ethanol electrooxidation in alkaline media

عنوان مقاله: Ni@Pt core-shell nanoparticles as an improved electrocatalyst for ethanol electrooxidation in alkaline media
شناسه ملی مقاله: H2FC03_006
منتشر شده در سومین کنفرانس هیدروژن و پیل سوختی در سال 1394
مشخصات نویسندگان مقاله:

Serveh Ghaderi - Electroanalytical Chemistry Laboratory, Department of Chemistry, Faculty of Sciences,Azarbaijan Shahid Madani University, Tabriz
Biuck Habibi - Electroanalytical Chemistry Laboratory, Department of Chemistry, Faculty of Sciences,Azarbaijan Shahid Madani University, Tabriz

خلاصه مقاله:
Core-shell nanostructures are emerging as more important materials than alloy nanostructures, and have much more interesting potential applications in various fields, including catalysis and electronics. In this work, we demonstrate the facile synthesis of core-shell nanoparticles consisting of Pt thin layer as the shell and Ninanoparticles as the cores. X-ray diffraction, scanning electron microscopy, transmission electron microscopy and energy dispersive X-ray spectroscopy are used to investigate the surface morphology and chemical structural. The general electrochemical behavior towards ethanol oxidation on core-shell nanoparticles has been investigated by cyclic voltammetry in 0.5 M NaOH solution. The Ni@Pt core-shell nanoparticles showmarkedly enhanced electrocatalytic activity and stability for ethanol oxidation compared with the Pt-alonenanoparticles catalyst. The attractive performances exhibited by these prepared Ni@Pt core-shell nanoparticles make them promising candidates as future high-performance catalysts for ethanol electrooxidation. The facile method described herein is suitable for large-scale, low-cost production, and significantly lowers the Pt loading,and thus, the cost of the catalysts

کلمات کلیدی:
Ni@Pt nanoparticles, Core-shell, Electrooxidation, Ethanol, Alkaline media

صفحه اختصاصی مقاله و دریافت فایل کامل: https://civilica.com/doc/595306/