The Acid Roles of PtSn@Al₂O₃ in the Synthesis and Performance of Propane Dehydrogenation.

ABSTRACT: In this study, a PtSn/Al₂O₃ catalyst with bimetallic uniform distribution in the sphere was synthesized. The PDH performance and characterization analyses, such as with FTIR, XPS, and NH₃-TPD, were investigated. The effects of acid on the PDH performance were analyzed. Citric acid (CA) acted as a competing adsorbent in the preparation process of the PtSn/Al₂O₃ catalyst to synthesize the uniform catalyst. Water washing and alkali-treated samples were also studied. SEM line scanning revealed that increased the apparent concentration of Pt metal from 0.23 to 0.30 with citric acid. In contrast to the fresh PtSn/Al₂O₃ catalyst, the addition of citric acid increased the PDH selectivity from 74% to 93%. After alkali or w

SUBMITTER: Niu H 

PROVIDER: S-EPMC11243666 | biostudies-literature | 2024 Jun

REPOSITORIES: biostudies-literature