OXIDE COMPOSITE PRECURSOR AQUEOUS SOLUTION, METHOD OF MANUFACTURING OXIDE COMPOSITE, OXIDE COMPOSITE, EXHAUST CLEANING CATALYST PROVIDED WITH THE OXIDE COMPOSITE, AND METHOD OF CLEANING EXHAUST USING THE EXHAUST CLEANING CATALYST

摘要

PROBLEM TO BE SOLVED: To provide an oxide composite precursor aqueous solution by which a metal element being a precursor for an oxide composite is stably incorporated into an aqueous solution with high concentration and in a stable state, and the sufficiently fined oxide composite is obtained.

SOLUTION: The oxide composite precursor aqueous solution contains a first compound containing at least one kind of a first metal element selected from a group comprising alkali metals and alkaline earth metals, a second compound containing at least one kind of a second metal element selected from a group comprising rare earth metals, a third compound having a multidentate ligand, and ammonia.

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