Using Immobilized Ru Hydride Complexes to Understand the Interaction of Molecular Heterogeneous Catalysts with the Pore Walls under Catalytic Conditions (C07*)

分子非均相催化剂（B1-3）通常由于表面塌陷（与孔壁相互作用）而具有低活性和失活。在这里，我们提出了一种在催化条件下检测表面塌陷的方法。我们将在Lewis酸性介孔材料中固定化钌配合物（A4-6）。由于Lewis酸改变了氢化钌催化剂在CO2加氢中的选择性，因此产物分布是表面坍塌量的直接探测（当配合物接近Lewis酸时）。这将通过使用先进的光谱（C1和S1）得到证实。

Molecular heterogeneous catalysts (B1-3) often suffer from low activity and deactivation due to surface collapse (interaction with the pore wall). Here, we present a method for detecting surface collapse under catalytic conditions. We will immobilize ruthenium complexes inside of Lewis acidic mesoporous materials (A4-6). Since Lewis acids change the selectivity of ruthenium hydride catalysts in CO2 hydrogenation, the product distribution is a direct probe of the amount of surface collapse (when the complex is close to the Lewis acids). This will be corroborated through the use of advanced spectroscopies (C1 and S1).