▎ 摘　　要

NOVELTY - Use of lanthanide-transition metal oxide complex catalyst of formula AM2O5-x (I) in catalyzing hydrogen peroxide at room temperature. USE - The complex catalyst is useful in catalyzing hydrogen peroxide at room temperature. ADVANTAGE - The complex catalyst do not contain precious metals, and the cost is low, is relatively mature and simple and can be mass-produced for large-scale hydrogen peroxide decomposition. DETAILED DESCRIPTION - Use of lanthanide-transition metal oxide complex catalyst of formula AM2O5-x(I) in catalyzing hydrogen peroxide at room temperature. A = lanthanide metal elements, samarium, bismuth and yttrium; M = transition metal elements of the first transition system; and x = 0-1.