Tuning Adsorbate‐Mediated Strong Metal‐Support Interaction by Oxygen Vacancy: A Case Study in Ru/TiO2

• DOI: 10.1002/ange.202407025
• Publication Date: 2024-05-14T12:45:55Z
• Authors: Juan Li; Lin Zhang; Xingda An; Kai Feng; Xuchun Wang; Jiari He; Yang Huang; Jingjing Liu; Liang Zhang; Binhang Yan; Chaoran Li; Le He
• Keywords: 01 natural sciences; 0104 chemical sciences

Abstract The adsorbate‐mediated strong metal‐support interaction (A‐SMSI) offers a reversible means of altering the selectivity supported metal catalysts, thereby providing powerful tool for facile modulation catalytic performance. However, fundamental understanding A‐SMSI remains inadequate and methods tuning are still in their nascent stages, impeding its stabilization under reaction conditions. Here, we report that initial concentration oxygen vacancy oxide supports plays key role between Ru nanoparticles defected titania (TiO 2‐x ). Based on this new understanding, demonstrate situ formation conditions, obviating typically required CO 2 ‐rich pretreatment. as‐formed layer exhibits remarkable stability at various temperatures, enabling excellent activity, long‐term catalyzing reverse water gas‐shift reaction. This study deepens ability to stabilize conditions represents step practical applications.