Manganese oxide-induced stable Pt₂Mn cluster catalysts for highly efficient propane dehydrogenation

Key Points

• The study aims to design highly stable platinum-based catalysts for propane dehydrogenation.
• Developed manganese oxide nanoparticles as anchoring points on silicalite-1 support
• Constructed Pt₂Mn clusters of approximately 1 nm in size
• Characterized the active site structure using various techniques including XANES and CO-DRIFTS
• Evaluated the catalytic performance under specific conditions
• The Pt0.3Mn/S-1 catalyst showed an optimal propane conversion rate of 45.5%
• The deactivation rate constant was only 0.014 h−1, indicating high stability
• MnOx stabilizes Pt₂Mn clusters by enhancing metal-support interactions and facilitating electron transfer