Hetero‐Shelled Hollow Structure Coupled with Non‐Thermal Plasma Inducing Spatial Charge Rearrangement for Superior NO Conversion and Sulfur Resistance

Abstract Facilitating the mass transfer and spatial charge separation is a great challenge for achieving efficient oxidation of NO and outstanding sulfur resistance. Herein, a hydrothermal‐assisted confinement growth technique is used to fabricate well‐defined three‐dimensional CuOx@MnOx hetero‐shelled hollow‐structure catalysts. By integrating the coupled plasma space reactor and the porous hierarchical structure of the catalyst, excellent stability (10 h) and high conversion of NO (93.86%) are reached under the concentration of SO₂ (1000 mg m^–3) and NO (200 mg m^–3). Impressively, precise surface characterization and detailed density functional theory calculations show that the spatial hetero‐shelled micro‐reactor can orient the redox pairs transportation, facilitating the combination of NO with the surface coordinately unsaturated O atoms, and also prevent the poisoning of SO₂ molecules due to the curvature and surface charge effect in the non‐thermal plasma equipment.