Unraveling the structure-activity relationship and improving the catalytic performance is paramount in propane dehydro-aromatization reactions. Herein, a tandem catalyst with high propane dehydro-aromatization reaction performance was prepared via coupling the PtFe@S-1 with Zn/ZSM-5 zeolites (PtFe@S-1&1.0Zn/ZSM-5), which exhibits high dehydrogenation activity, aromatics selectivity (∼60% at ∼78% propane conversion), and stability. The addition of zinc inhibits the cleavage of C₆⁼ intermediates on ZSM-5 and promotes the aromatization pathway by weakening zeolite acid strength, significantly improving the selectivity to aromatics. This understanding of the structure-activity relationship in propane dehydro-aromatization reaction helps develop future high-performance catalysts.

阐明构效关系并提高催化性能对于丙烷脱氢芳构化反应至关重要。本文通过将PtFe@S-1与Zn/ZSM-5沸石偶联制备了具有高丙烷脱氢芳构化反应性能的串联催化剂(PtFe@S-1&1.0Zn/ZSM-5)，该催化剂表现出高脱氢活性，芳烃选择性（丙烷转化率约 78% 时约 60%）和稳定性。锌的添加抑制了ZSM-5上C ₆ ⁼中间体的裂解，并通过减弱沸石酸强度促进芳构化途径，显着提高了对芳烃的选择性。对丙烷脱氢芳构化反应结构-活​​性关系的理解有助于开发未来的高性能催化剂。