Acidic Transition Metal Oxide Catalyst for Stable Organic Decomposition

The patent applies parameter changes by modifying the surface properties of non-reducible transition metal oxides through reduction treatment and functional group introduction. The surface reduction creates oxygen vacancies and changes the electronic structure, while functional groups (NO3-, H3-APO4A-, SO42-) are introduced to enhance radical generation capability. These parameter changes enable the catalyst to maintain stability while improving decomposition rate by facilitating hydrogen peroxide homolysis and radical transfer mechanisms.

The patent applies the extraction principle by removing the problematic reducible metal components from the catalyst surface through selective dissolution or stabilization methods. By extracting the leachable metal species while retaining the structural framework of non-reducible transition metal oxides, the catalyst maintains its stability over extended operations without suffering from active site leaching. This enables prolonged productivity while preserving catalyst performance.

The patent applies composite materials by combining non-reducible transition metal oxides with stable functional groups (nitrate, phosphate, sulfate) and reducing surfaces to create a composite catalyst structure. This composite approach increases the number of stable surface active sites that can facilitate decomposition reactions while the non-reducible nature of the base oxide prevents leaching. The functional groups are anchored to the oxide surface, creating a stable composite that maintains high decomposition efficiency without active site loss.