题目：

Tuning Adsorbate-Mediated Strong Metal-Support Interaction byOxygen Vacancy: A Case Study in Ru/TiO₂

作者：

Juan Li¹, Lin Zhang¹, Xingda An^1,2, Kai Feng^1,2, Xuchun Wang⁵, Jiari He¹, Yang Huang⁶, Jingjing Liu⁷, Liang Zhang^1,2, Binhang Yan⁴, Chaoran Li^1,3*, and Le He^1,2*

单位：

¹Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, 215123, Jiangsu, PR China

²Jiangsu Key Laboratory of Advanced Negative Carbon Technologies, Soochow University, Suzhou, 215123, Jiangsu, PR China

³Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, 215123, Jiangsu, PR China

⁴Department of Chemical Engineering, Tsinghua University, Beijing 100084, P. R. China

⁵Department of Chemistry, Soochow University-Western University Centre for Synchrotron Radiation Research, University of Western Ontario, London, N6A 5B7, Ontario, Canada

⁶State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 730000, China.

⁷Institute of Information Technology, Suzhou Institute of Trade and Commerce, Suzhou, 215009, Jiangsu, PR China

摘要：

The adsorbate-mediated strong metal-support interaction (A-SMSI) offers a reversible means of altering the selectivity of supported metal catalysts, thereby providing a powerful tool for facile modulation of catalytic performance. However, the fundamental understanding of A-SMSI remains inadequate and methods for tuning A-SMSI are still in their nascent stages, impeding its stabilization under reaction conditions. Here, we report that the initial concentration of oxygen vacancy in oxide supports plays a key role in tuning the A-SMSI between Ru nanoparticles and defected titania (TiO_2-x). Based on this new understanding, we demonstrate the in situ formation of A-SMSI under reaction conditions, obviating the typically required CO₂-rich pretreatment. The as-formed A-SMSI layer exhibits remarkable stability at various temperatures, enabling excellent activity, selectivity and long-term stability in catalyzing the reverse water gas-shift reaction. This study deepens the understanding of the A-SMSI and the ability to stabilize A-SMSI under reaction conditions represents a key step for practical catalytic applications.

影响因子：

16.1

分区情况：

一区

链接：

https://doi.org/10.1002/anie.202407025