In Situ Formation of Platinum‐Carbon Catalysts in Propane Dehydrogenation

Abstract: The catalytic production of propylene via propane dehydrogenation (PDH) is a key reaction in the chemical industry. By combining operando transmission electron microscopy with density functional theory analysis, we show that the intercalation and ordering of carbon on Pt interstitials to form Pt−C solid solutions is relevant for increasing propylene production. More specifically, we found that at the point of enhanced propylene formation, the structure of platinum nanoparticles is transformed into a transient caesium chloride‐type Pt−C polymorph. At more elevated temperatures, the zincblende and rock salt polymorphs seemingly coexist. When propylene production was highest, multiple crystal structures consisting of Pt and carbon were occasionally found to coexist in one individual nanoparticle, distorting the Pt lattice. Catalyst coking was detected at all stages of the reaction, but did initially not affect all particles. These findings could lead to the development of novel synthesis strategies towards tailoring highly efficient PDH catalysts.

Location
Deutsche Nationalbibliothek Frankfurt am Main
Extent
Online-Ressource
Language
Englisch

Bibliographic citation
In Situ Formation of Platinum‐Carbon Catalysts in Propane Dehydrogenation ; day:10 ; month:05 ; year:2024 ; extent:10
Angewandte Chemie ; (10.05.2024) (gesamt 10)

Creator
Nerl, Hannah C.
Plodinec, Milivoj
Götsch, Thomas
Skorupska, Katarzyna
Schlögl, Robert
Jones, Travis E.
Lunkenbein, Thomas

DOI
10.1002/ange.202319887
URN
urn:nbn:de:101:1-2405101427531.685751018735
Rights
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Last update
14.08.2025, 10:53 AM CEST

Data provider

This object is provided by:
Deutsche Nationalbibliothek. If you have any questions about the object, please contact the data provider.

Associated

  • Nerl, Hannah C.
  • Plodinec, Milivoj
  • Götsch, Thomas
  • Skorupska, Katarzyna
  • Schlögl, Robert
  • Jones, Travis E.
  • Lunkenbein, Thomas

Other Objects (12)