The engineering design and construction of active interfaces represents a promising approach amidst numerous initiatives aimed at augmenting catalytic activity.Herein,we present a novel approach to incorporate interco...The engineering design and construction of active interfaces represents a promising approach amidst numerous initiatives aimed at augmenting catalytic activity.Herein,we present a novel approach to incorporate interconnected pores within bulk single crystals for the synthesis of macroscopic porous single-crystalline rutile titanium oxide(R-TiO_(2)).The porous single crystal(PSC)R-TiO_(2) couples a nanocrystalline framework as the solid phase with pores as the fluid phase within its structure,providing unique advantages in localized structure construction and in the field of catalysis.We successfully construct well-defined Ni cluster/TiO_(2) active interfaces by directly confining Ni clusters on the continuous lattice surface of PSC R-TiO_(2).We confirm that the lattice oxygen connected to the Ni clusters exhibits exceptional activation capability at temperatures close to room temperature compared to the pure phase PSC R-TiO_(2) monoliths.The PSC Ni/TiO_(2) catalyst demonstrates complete CO oxidation and stable catalytic performance during continuous operation in air at~80℃ for 200 h.展开更多
基金the funding support provided by the Natural Science Foundation of China(22325506)the Shanghai Science and Technology Innovation Action Plan(24TS1414400)+4 种基金the Shanghai Jiao Tong University 2030 Initiative(2030B24)Industry support(24YW2024)from Shanghai Nuclear Engineering Research and Design Institute Co.Ltd.the China Postdoctoral Science Foundation(2023TQ0354 and 2023M743497)the Postdoctoral Fellowship Program of CPSF(GZB20230759)the Fujian STS plan supporting project(2022T3022,2023T3050,and 2023T3051)for this work.
文摘The engineering design and construction of active interfaces represents a promising approach amidst numerous initiatives aimed at augmenting catalytic activity.Herein,we present a novel approach to incorporate interconnected pores within bulk single crystals for the synthesis of macroscopic porous single-crystalline rutile titanium oxide(R-TiO_(2)).The porous single crystal(PSC)R-TiO_(2) couples a nanocrystalline framework as the solid phase with pores as the fluid phase within its structure,providing unique advantages in localized structure construction and in the field of catalysis.We successfully construct well-defined Ni cluster/TiO_(2) active interfaces by directly confining Ni clusters on the continuous lattice surface of PSC R-TiO_(2).We confirm that the lattice oxygen connected to the Ni clusters exhibits exceptional activation capability at temperatures close to room temperature compared to the pure phase PSC R-TiO_(2) monoliths.The PSC Ni/TiO_(2) catalyst demonstrates complete CO oxidation and stable catalytic performance during continuous operation in air at~80℃ for 200 h.
