CATALYST PRODUCED BY USING MULTI-ELEMENT METAL COLLOID

摘要

A catalyst is disclosed which comprises one or more kinds of catalyst metal, a promoter metal composed of at least one element selected among alkaline earth metals, transition metals, rare earth metals, aluminum and gallium, and a supporting body. The catalyst metal and the promoter metal are loaded onto the supporting body by having a multi-element metal colloid solution adhere to the supporting body. The multi-element metal colloid solution comprises a solvent composed of water or water and an organic solvent, metal cluster particles which are dispersed/suspended in the solvent and composed of one or more kinds of catalyst metal, a protective agent for protecting the metal cluster particles, and one or more kinds of metal ions bonded to the protective agent which ions are selected among alkaline earth metal ions, transition metal ions, rare earth metal ions, aluminum ions and gallium ions.