Separated Active Site and Reaction Space for Multi‐Pollutant Elimination Significantly Enhancing Low Toxic Product Selectivity

It is possible to remove volatile organic compounds containing chlorine (CVOCs, such as chlorobenzene) in a single device designed for selective catalytic reduction of NOx with NH3 the industries CVOCs and NOx. Breaking efficiency-selectivity trade-off chlorobenzene oxidation remains major challenge due conjugation halogen atoms benzene ring reducing nature NH3. A stepwise synthesis strategy demontrated disperse dual Ru/Cu Lewis acid sites outside inside zeolite channel. Under confinement zeolite, Ru4+ site on external surface promotes by weakening p-π conjugate structure Cl ring, while Cu2+ within internal channel converts N2. The mutual interference between successfully avoided. Therefore, low toxic CO2 HCl selectivity experience considerable increase from 21% 86%, 51% 94% 91% conversion chlorobenzene, maintaining excellent elimination performance NO (with N2 exceeding 90%). incorporation separated active reaction spaces into design may offer potentials other energy environmental applications.