Abstract
Using ordered mesoporous carboni (CMK-3 ) as a carrier, yPt/CMK-3 and MoOx addiiive modulaled catalyst yPl-zMoOx/CMK-3 (y and z are ihe number of deposition cycles of Pt and MoOx, respectively) were prepared by atomic layer deposition technology. The impact of the number of deposition cycles on the dispersion of the Pt metal and the catalytic performance for the dehydrogenation of methylcyclohexane was studied. The results showed that optimal Pt dispersion and an appropriate amount of atomically dispersed MoOx, additives could significantly improved the performance of Pl-based catalysts. Compared with 10Pt/CMK-3, the dehydrogenation rate( amount of H2 produced per unit mass of Pt per unit time) on the catalyst 10 Pt-1 MoOx/CMK-3 increased from 79. 02 mol/( g · h) to 97. 88 mol/(g · h), and the methylcyclohexane conversion rate increased from 71% to 91%. The addition of MoOx additive had little effect on the dispersion of Pt nanoparticles, mainly increased the electron density on the Pt surface and decreased the activation temperature of catalyst.
| Translated title of the contribution | SYNTHESIZE OF ORDERED MESOPOROUS CARBON SUPPORTED Pt-MoOx CATALYST AND ITS CATALYTIC PERFORMANCE FOR METHYLCYCLOHEXANE DEHYDROGENATION |
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| Original language | Chinese (Traditional) |
| Pages (from-to) | 33-41 |
| Number of pages | 9 |
| Journal | Petroleum Processing and Petrochemicals |
| Volume | 55 |
| Issue number | 9 |
| State | Published - Sep 2024 |
| Externally published | Yes |