Pt-based metal nanocluster-metal oxide nano composite material as well as preparation method and application thereof

The invention discloses a Pt-based metal nanocluster-metal oxide nano composite material as well as a preparation method and an application thereof. The nano composite material is composed of metal oxide particles and Pt-based metal nanoclusters loaded on the metal oxide particles, wherein the mass percentage of Pt is 27%-70%; the Pt-based metal nanocluster is a Pt metal nanocluster or a Pt alloynanocluster, and the number-average particle size of the Pt-based metal nanoclusters is 1.3-6 nanometers; and the number-average particle size of the metal oxide particles is 10-200 nanometers. The Pt-based metal nanocluster-metal oxide nano composite material prepared according to the method has the characteristics of small metal and alloy nanocluster size, narrow particle size distribution, uniform dispersion on the surface of the metal oxide, high content and good conductivity, and the fuel cell oxygen reduction reaction has excellent catalytic performance and outstanding stability. 本发明公开了一种Pt基金属纳米簇-金属氧化物纳米复合材料及其制备