Alloy catalyst and preparation method and application thereof

The invention discloses an alloy catalyst and a preparation method and application thereof, the alloy catalyst comprises a metal ball carrier and an active metal layer loaded on the surface of the metal ball carrier, and the mass percentage of the active metal is 0.000001%-7%; the active metal is selected from one or a combination of rhenium (Re), iron (Fe), ruthenium (Ru), iridium (Ir), rhodium (Rh), manganese (Mn), bismuth (Bi), nickel (Ni), platinum (Pt), tungsten (W), cobalt (Co), molybdenum (Mo) or chromium (Cr). The active metal elements are directly deposited on the surfaces of the metal balls to form an alloy structure, so that the thermal stability and the sintering resistance of the catalyst are effectively improved, and meanwhile, the reaction active center of the zero-dimensional catalyst is completely exposed in a reaction atmosphere, so that the zero-dimensional catalyst has relatively high catalytic efficiency. 本发明公开了一种合金催化剂及其制备方法与应用，包括金属球载体和负载于金属球载体表面的活性金属层，活性金属的质量百分数为0.0000001％～7％；所述活性金属选自铼(R