Advances in Pt-based cluster catalyst design strategies for propane dehydrogenation
Propane dehydrogenation(PDH)technology presents an efficient route to meet the increasing global de-mand for propylene.However,the high endothermic nature of the PDH reaction limits equilibrium conversion,and even highly active and selective Pt-based catalysts are prone to deactivation at elevated temperatures due to sintering and coking,affecting their stability and lifespan.how the geometric structure and electronic properties of Pt-based cluster catalysts impact their catalytic performance was examined and strategies to enhance the stability of these clusters was discussed.recent advancements in controlling the structure of Pt-based catalysts was summarized and preventing deactivation through various approaches,including traditional liquid-phase synthesis,post-processing techniques,and atomic layer deposition(ALD).Additionally,highlight future research directions focusing on desig-ning well-defined Pt-based catalysts with ALD technology,aiming to gain a deeper understanding of active site char-acteristics and exploring methods to further stabilize Pt clusters within molecular sieve-constrained environments.These insights provide new perspectives for developing the next generation of efficient and stable PDH catalysts.
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