Our group prepared well-dispersed monolayer CrOx species attached to the silanol nests in zeolites to improve the activity of propane dehydrogenation (PDH). The nature of active species was identified by different characterizations. and optimized different promoters to improve the propane dehydrogenation performance of the catalyst. Optimized promoters were used to improve the PDH performance. Among them, K doping significantly improved the propylene selectivity and anti-coking ability, and the regeneration cycle stability can be completely recovered. This work has been published in the Chemical Engineering Journal.

The article links: https://doi.org/10.1016/j.cej.2024.152925