Supported Gold Catalysts Derived from Gold Complexes and As-Precipitated Metal Hydroxides, Highly Active for Low-Temperature CO Oxidation

Abstract
Supported gold catalysts were prepared by attaching phosphine-stabilized gold complex and cluster on as-precipitated metal hydroxides M(OH)*X (M = Mn2+, Co2+, Fe3+, Ni2+, Zn2+, Mg2+, and Cu2+), followed by thermal decomposition and calcination. The obtained catalysts were remarkably active for CO oxidation at low temperatures below 273 K.