Cu-ZSM-5 zeolite catalyst is a copper-modified molecular sieve catalytic material. It retains the original MFI crystal structure and unique pore architecture of the ZSM-5 molecular sieve while acquiring excellent redox catalytic properties from the incorporated copper species. Cu-ZSM-5 also possesses a highly stable three-dimensional microporous network composed of intersecting straight and sinusoidal channels.
The straight channels of Cu-ZSM-5 zeolite have pore dimensions of approximately 0.53 nm × 0.56 nm, while the zigzag channels measure about 0.51 nm × 0.55 nm. This well-defined pore system provides strong shape-selective catalytic behavior by controlling the diffusion and transformation of reactant molecules within the zeolite framework.
Cu-ZSM-5 introduces highly dispersed copper species into the zeolite channels and exchange sites. The coexistence of acidic centers and redox-active copper species creates a bifunctional catalyst capable of promoting both acid-catalyzed and oxidation-reduction reactions. This synergistic interaction significantly broadens Cu-ZSM-5 catalyst’s application range and enhances catalytic performance in many industrial processes.
Cu-ZSM-5 zeolite catalyst has excellent oxidation-reduction capability. This property makes Cu-ZSM-5 particularly effective in selective catalytic oxidation, dehydrogenation, and environmental catalysis. So the most important applications of Cu-ZSM-5 is in the selective catalytic reduction (SCR) of nitrogen oxides (NOx). The copper active sites efficiently activate ammonia and NOx molecules, enabling their conversion into harmless nitrogen and water.
| Type | CU-ZSM-5 |
| Apprearance | Light blue powder |
| Crystal Structure | MFI |
| Crystal Size(μm) | 2~6 |
| BET Surface Area(㎡/g) | >380 |
| SiO2/Al2O3(mol/mol) | 20~80 |
| Na2O(wt%) | <0.1 |
| Crystallinity(%) | >95 |
| Loss on ignition(wt%) | <11 |
* NH3-SCR Denitrification
* NOx Decomposition
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