Engineering Active Interfaces on the Surface of Porous Single-Crystalline TiO2 Monoliths for Enhanced Catalytic Activity and Stability
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...
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| Format: | Article |
| Language: | English |
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American Association for the Advancement of Science (AAAS)
2025-01-01
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| Series: | Research |
| Online Access: | https://spj.science.org/doi/10.34133/research.0579 |
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| author | Huang Lin Cong Luo Fangyuan Cheng Kui Xie |
| author_facet | Huang Lin Cong Luo Fangyuan Cheng Kui Xie |
| author_sort | Huang Lin |
| collection | DOAJ |
| description | 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-TiO2). The porous single crystal (PSC) R-TiO2 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/TiO2 active interfaces by directly confining Ni clusters on the continuous lattice surface of PSC R-TiO2. 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-TiO2 monoliths. The PSC Ni/TiO2 catalyst demonstrates complete CO oxidation and stable catalytic performance during continuous operation in air at ~80 °C for 200 h. |
| format | Article |
| id | doaj-art-7d3e46675ca049c4b7fd42b1304d7d28 |
| institution | Kabale University |
| issn | 2639-5274 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | American Association for the Advancement of Science (AAAS) |
| record_format | Article |
| series | Research |
| spelling | doaj-art-7d3e46675ca049c4b7fd42b1304d7d282025-01-14T08:03:00ZengAmerican Association for the Advancement of Science (AAAS)Research2639-52742025-01-01810.34133/research.0579Engineering Active Interfaces on the Surface of Porous Single-Crystalline TiO2 Monoliths for Enhanced Catalytic Activity and StabilityHuang Lin0Cong Luo1Fangyuan Cheng2Kui Xie3Key Laboratory of Design & Assembly of Functional Nanostructures, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China.Key Laboratory of Design & Assembly of Functional Nanostructures, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China.Key Laboratory of Design & Assembly of Functional Nanostructures, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China.Key Laboratory of Design & Assembly of Functional Nanostructures, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China.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-TiO2). The porous single crystal (PSC) R-TiO2 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/TiO2 active interfaces by directly confining Ni clusters on the continuous lattice surface of PSC R-TiO2. 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-TiO2 monoliths. The PSC Ni/TiO2 catalyst demonstrates complete CO oxidation and stable catalytic performance during continuous operation in air at ~80 °C for 200 h.https://spj.science.org/doi/10.34133/research.0579 |
| spellingShingle | Huang Lin Cong Luo Fangyuan Cheng Kui Xie Engineering Active Interfaces on the Surface of Porous Single-Crystalline TiO2 Monoliths for Enhanced Catalytic Activity and Stability Research |
| title | Engineering Active Interfaces on the Surface of Porous Single-Crystalline TiO2 Monoliths for Enhanced Catalytic Activity and Stability |
| title_full | Engineering Active Interfaces on the Surface of Porous Single-Crystalline TiO2 Monoliths for Enhanced Catalytic Activity and Stability |
| title_fullStr | Engineering Active Interfaces on the Surface of Porous Single-Crystalline TiO2 Monoliths for Enhanced Catalytic Activity and Stability |
| title_full_unstemmed | Engineering Active Interfaces on the Surface of Porous Single-Crystalline TiO2 Monoliths for Enhanced Catalytic Activity and Stability |
| title_short | Engineering Active Interfaces on the Surface of Porous Single-Crystalline TiO2 Monoliths for Enhanced Catalytic Activity and Stability |
| title_sort | engineering active interfaces on the surface of porous single crystalline tio2 monoliths for enhanced catalytic activity and stability |
| url | https://spj.science.org/doi/10.34133/research.0579 |
| work_keys_str_mv | AT huanglin engineeringactiveinterfacesonthesurfaceofporoussinglecrystallinetio2monolithsforenhancedcatalyticactivityandstability AT congluo engineeringactiveinterfacesonthesurfaceofporoussinglecrystallinetio2monolithsforenhancedcatalyticactivityandstability AT fangyuancheng engineeringactiveinterfacesonthesurfaceofporoussinglecrystallinetio2monolithsforenhancedcatalyticactivityandstability AT kuixie engineeringactiveinterfacesonthesurfaceofporoussinglecrystallinetio2monolithsforenhancedcatalyticactivityandstability |