The gas-phase epoxidation of propylene with H₂ and O₂ has been explored by a number of researchers due to its green nature. It is an environmentally more benign and more efficient alternative to existing industry processes, such as the chlorohydrin method and hydroperoxide process. As the catalyst for this reaction, Au/TS-1 plays a critical role. In this review, we aimed to disclose the correlation between Au/TS-1′s catalytic property and the synthesis/modification strategies. Reaction mechanism was firstly summarized involving the generation of hydrogen peroxide (H₂O₂) catalyzed by Au particles and epoxidation reaction catalyzed by TS-1 zeolites. Subsequently, the effects of different Ti species, Au particle size, loading position and chemical state on catalytic performance were discussed. Based on this, the modified strategies of TS-1 surface property and pore structure, synthesis methods for obtaining small and highly dispersed Au particles in deposition-precipitation (DP) process were emphasized. Pretreatment of Au/TS-1 catalyst to diminish hydroxyl defects and make it active in specific atmosphere were also demonstrated.

由于其绿色性质，丙烯与 H ₂和 O ₂的气相环氧化已被许多研究人员探索。它是对现有工业工艺（例如氯醇法和氢过氧化物工艺）更环保、更有效的替代方案。作为该反应的催化剂，Au/TS-1 起着关键作用。在这篇综述中，我们旨在揭示 Au/TS-1 催化性能与合成/改性策略之间的相关性。首次总结了过氧化氢（H ₂ O ₂) 由 Au 颗粒催化和由 TS-1 沸石催化的环氧化反应。随后，讨论了不同Ti种类、Au粒径、负载位置和化学状态对催化性能的影响。在此基础上，重点介绍了TS-1表面性质和孔结构的改进策略，以及在沉积-沉淀（DP）过程中获得小而高度分散的Au颗粒的合成方法。还展示了对 Au/TS-1 催化剂进行预处理以减少羟基缺陷并使其在特定气氛中具有活性。