A06-07

2:45 PM - 3:15 PM JST(5:45 AM - 6:15 AM UTC)Japanese

[A07] Synthesis of MFI zeolite-encapsulated metal nanoparticles by the dry-gel conversion method and ethane dehydroaromatization for the production of valuable chemicals

○Kentaro Kimura¹, Misaki Endo¹, Nodoka Nakatani¹, JIANAN Ye¹, Hiroyasu Fujistuka¹, Teruoki Tago¹ (1. Institute of Science Tokyo)

Keywords:

MFI Zeolite,Ethane Dehydroaromatization,catalyst

In this study, a novel method was developed to prepare zeolite-encapsulated Pt catalysts with metal nanoparticles located near the external surface. Pt/MFI was modified with APTMS to form a SiO₂–Al₂O₃ layer around Pt particles, followed by dry-gel conversion into a zeolite structure. This approach effectively suppressed Pt aggregation and improved sintering resistance. The resulting Pt@MFI catalyst showed higher initial activity and better stability in ethane dehydrogenation compared to conventional Pt/MFI. TEM analysis confirmed that Pt particle growth was minimized after reaction, demonstrating the effectiveness of this method for designing durable zeolite-supported metal catalysts.