近几十年来，表面科学对复杂催化剂的研究能力已得到大幅提升。从早期的金属和氧化物单晶表面开始，发展到现在的基于单晶衬底的金属团簇和纳米颗粒。表面科学下一阶段的挑战将是处理结构更为复杂的纳米多孔材料，例如沸石。最近报道的新型二维沸石模型为我们利用表面科学技术研究纳米多孔表面提供了一个全新的平台。这种二维沸石模型是生长在金属衬底上、厚度为0.5纳米、原子结构可控的硅铝酸盐薄膜。它具有多角棱柱型孔状结构，表面带有高酸性度的桥接羟基，与工业上的三维沸石材料拥有相似的结构和化学性质。负载型铜族金属纳米颗粒因其优异的物理化学特性，在催化领域有着广泛的应用。然而，目前仍缺乏对其与纳米多孔载体间的相互作用机理的了解，特别是缺乏从原子尺度去阐明它们的吸附、结合、团聚等过程。本项目将利用扫描隧道显微镜和二维沸石模型，原位研究铜族金属原子在纳米多孔表面上的吸附特性，为设计新型“沸石-铜族金属”复合催化剂提供见解。

In recent decades, the research capability of surface science on complex catalysts has been greatly improved. Starting from the metal and oxide single crystal surfaces in the early 1980s, it has now evolved to a well-defined planar substrate supported metal clusters and nanoparticles. The next challenge for surface science will be on addressing more complex nanoporous materials, such as zeolites. Recently reported novel two-dimensional zeolite models provide a new platform for us to use surface science techniques to study nanoporous surfaces. This zeolite model is an aluminosilicate film with a thickness of 0.5 nm, which can be fabricated on a metal substrate with well-defined atomic structures. It has polygonal prism-shaped pore structures with highly acidic bridging hydroxyl groups on the surface and has a similar structure and chemical properties to industrial three-dimensional zeolites. Supported copper group metal nanoparticles have a wide range of applications in the field of catalysis due to their unique physical and chemical properties. However, there is still a lack of understanding of their interactions with the nanoporous supports, especially on the elucidation of their adsorption and aggregation mechanisms at the atomic scale. This project will use scanning tunneling microscope and two-dimensional zeolite model to study the adsorption properties of copper group metal atoms on nanoporous surfaces and try to provide insights for the future design of novel “zeolite-copper group metals” composite catalysts.