Asosiy kontentga oʻtish
AkademIndex

Mahsulotlar

Ishlab chiquvchilar uchun

AkademBaseEkotizim uchun ochiq API
Maqola

Modulating Ti<i>t</i><sub>2g</sub>Orbital Occupancy in a Cu/TiO<sub>2</sub>Composite for Selective Photocatalytic CO<sub>2</sub>Reduction to CO

Kainan ZhuState Key Laboratory of Inorganic Synthesis and Preparative Chemistry Jilin Provincial International Cooperation Key Laboratory of Advanced Inorganic Solid Functional Materials College of Chemistry Jilin University Changchun 130012 ChinaQian ZhuState Key Laboratory of Inorganic Synthesis and Preparative Chemistry Jilin Provincial International Cooperation Key Laboratory of Advanced Inorganic Solid Functional Materials College of Chemistry Jilin University Changchun 130012 ChinaMengpei JiangShenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences 72 Wenhua RD Shenyang 110016 ChinaYaowen ZhangState Key Laboratory of Inorganic Synthesis and Preparative Chemistry Jilin Provincial International Cooperation Key Laboratory of Advanced Inorganic Solid Functional Materials College of Chemistry Jilin University Changchun 130012 ChinaZhiyu ShaoState Key Laboratory of Inorganic Synthesis and Preparative Chemistry Jilin Provincial International Cooperation Key Laboratory of Advanced Inorganic Solid Functional Materials College of Chemistry Jilin University Changchun 130012 ChinaZhibin GengState Key Laboratory of Inorganic Synthesis and Preparative Chemistry Jilin Provincial International Cooperation Key Laboratory of Advanced Inorganic Solid Functional Materials College of Chemistry Jilin University Changchun 130012 ChinaXiyang WangDepartment of Mechanical and Mechatronics Engineering Waterloo Institute for Nanotechnology Materials Interface Foundry University of Waterloo Waterloo Ontario N2L3G1 CanadaHui ZengState Key Laboratory of Inorganic Synthesis and Preparative Chemistry Jilin Provincial International Cooperation Key Laboratory of Advanced Inorganic Solid Functional Materials College of Chemistry Jilin University Changchun 130012 ChinaXiaofeng WuState Key Laboratory of Inorganic Synthesis and Preparative Chemistry Jilin Provincial International Cooperation Key Laboratory of Advanced Inorganic Solid Functional Materials College of Chemistry Jilin University Changchun 130012 ChinaWei ZhangElectron Microscopy Center and Jilin Provincial International Cooperation Key Laboratory of High-Efficiency Clean Energy Materials Jilin University Changchun 130012 ChinaKeke HuangState Key Laboratory of Inorganic Synthesis and Preparative Chemistry Jilin Provincial International Cooperation Key Laboratory of Advanced Inorganic Solid Functional Materials College of Chemistry Jilin University Changchun 130012 ChinaShouhua FengState Key Laboratory of Inorganic Synthesis and Preparative Chemistry Jilin Provincial International Cooperation Key Laboratory of Advanced Inorganic Solid Functional Materials College of Chemistry Jilin University Changchun 130012 China
2022en
ABI

Annotatsiya

Abstract The electronic structure of composites plays a critical role in photocatalytic conversion, whereas it is challenging to modulate the orbital for an efficient catalyst. Herein, we regulated the t 2g orbital occupancy state of Ti to realize efficient CO 2 conversion by adjusting the amount of photo‐deposited Cu in the Cu/TiO 2 composite. For the optimal sample, considerable electrons transfer from the Cu d orbital to the Ti t 2g orbital, as proven by X‐ray absorption spectroscopy. The Raman spectra results also corroborate the electron enrichment on the Ti t 2g orbital. Further theoretical calculations suggested that the orbital energy of the Ti 3d orbital in TiO 2 is declined, contributing to accepting Cu 3d electrons. As a result, the Cu/TiO 2 composite exhibited an extremely high selectivity of 95.9 % for CO, and the productivity was 15.27 μmol g −1 h −1 , which is almost 6 times that of the original TiO 2 . Our work provides a strategy for designing efficient photocatalysis as a function of orbital regulation.

Hali tarjima qilinmagan

Identifikatorlar

DOI
10.1002/anie.202207600

Iqtiboslar va manbalar

2 ta iqtibos0 ta foydalanilgan manba
Koʻrsatkichlar — AkademScholar