The electronic structure of Ni was affected by the incorporation of Pt. The average sizes of the Ni particles in the NiPt catalysts were smaller than that in the supported Ni catalyst. The Ni 2+ was reduced to metallic Ni 0 via a self-reduction way utilizing the carbon as a reducing agent. The catalysts were characterized and the role of Pt was analysed using X-ray diffraction (XRD), high-resolution transmission electron microscopy (HRTEM), energy dispersive X-ray spectroscopy (EDS) mapping, and X-ray photoelectron spectroscopy (XPS) techniques. In this work, the supported nickel (Ni) and nickel-platinum (NiPt) nanocatalysts were derived from a layered double hydroxide/carbon composite precursor. To improve the activities of non-noble metal catalysts is highly desirable and valuable to the reduced use of noble metal resources.
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