Propane dehydrogenation to propylene over Co@N-doped carbon: Structure-activity-selectivity relationships
Aleksey N. Chernov, В. И. Соболев, Konstantin Yu. Koltunov
Abstract
The catalytic potential of carbon enriched with cobalt coordinated to nitrogen was explored for the propane dehydrogenation to propylene (PDH). The catalysts of a distinct structural diversity were synthesized by various techniques, which made it possible to define the specific role of metallic cobalt and cobalt oxide nanoparticles, as well as subnano-sized cobalt‑nitrogen sites in the PDH and side reactions under typical reaction conditions (600 °C, fixed bed flow reactor). The catalysts free from Co nanoparticles or having them tightly enveloped by graphite have shown the highest selectivity to propylene (>90%) and significant propane conversion (up to 29%).
Topics & Concepts
DehydrogenationCatalysisCobaltPropaneSelectivityChemistryCarbon fibersInorganic chemistryNanoparticleNitrogenGraphiteCobalt oxideCarbon blackMaterials scienceOrganic chemistryNanotechnologyComposite numberNatural rubberComposite materialCatalysis and Oxidation ReactionsCatalytic Processes in Materials ScienceZeolite Catalysis and Synthesis