Unsupported Ni[sbnd]Pt alloy metal catalysts prepared by water-in-oil (W/O) microemulsion method for methane cracking.

Unsupported Ni Pt metal catalyst with Ni/Pt molar ratio of 88/12 is prepared by water-in-oil (W/O) microemulsion method in this study. Compared to monometallic Ni and Pt catalysts, the Ni Pt catalyst exhibits superior activity and stability for methane cracking. By XRD (X-ray powder diffraction), XPS (X-ray photoelectron spectroscopy) and TEM (Transmission electron microscopy) analyses, the formation of Ni (0) Pt (0) alloy is believed to be the main reason for the reactivity improvement of this catalyst. Carbon nano tube (CNT) with Ni (0) Pt (0) particles anchored on the top of tube are found for the Ni Pt catalyst. [ABSTRACT FROM AUTHOR]