Thermal and FTIR characterization of Cu/Si-Al and Cu-zeolite catalysts

Summary

Thermal and FTIR studies on Cu/Si-Al by sol-gel and Cu/zeolite catalysts are compared by determining the effect of alumina and Cu incorporation into a SiO₂-Al₂O₃ and zeolite base support matrix. Hydroxyl groups formed during hydrolysis are more stable as the amount of alumina increases in the matrix. A proposed mechanism for metal incorporation involving the effect of alumina incorporation into the matrix is presented.  This mechanism may explain the formation of different Cu-based structures.