Pt–(O)–Co coordination governs the durability of Pt-based catalysts for propane dehydrogenation
- 1aLeibniz-Institut für Katalyse e.V., Albert-Einstein-Str. 29a, D-18059, Rostock, Germany.
- 2bInstitute for Chemical Technology and Polymer Chemistry, and Institute of Catalysis Research and Technology, Karlsruhe Institute of Technology, Kaiserstr. 12, D-76131, Karlsruhe, Germany.
- 3cMax Planck Institute of Microstructure Physics, Weinberg 2, 06120, Halle, Germany.
Abstract
Non-oxidative propane dehydrogenation (PDH) has emerged as a promising technology for on-purpose propene production, but the Pt-based catalysts currently used are expensive and prone to sintering of platinum, which negatively affects their performance. Their activity can be restored by redispersing the active species after treatment in environmentally harmful Cl2 or Cl-containing compounds. Herein, we demonstrate the application potential of Silicalite-1-supported Pt–Co bimetallic catalysts prepared by a simple impregnation method with a Pt loading of only 0.1 wt% and provide the origins of their high activity and especially durability. In terms of propene space-time yield related to the total amount of catalyst or platinum loading, the optimized 1Co0.1Pt/S-1 catalyst performed similarly to, or better than Pt-containing catalysts that had been previously developed and tested, albeit at higher temperatures. Another distinctive property of this catalyst is its high durability demonstrated in six dehydrogenation/regeneration cycles. The durability was found to increase progressively as the Co loading increases from 0 to 1 wt%. Comprehensive characterization revealed that the interaction strength between Pt and Co species, as reflected by the Pt–(O)–Co coordination number in the fresh catalysts, is the key factor governing catalyst durability. These findings provide valuable insights into the rational design of highly active and regenerable Pt-based dehydrogenation catalysts through the regulation of metal–metal interactions.
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BibTeX
@article{ding2026ptoco,
title = {{Pt–(O)–Co coordination governs the durability of Pt-based catalysts for propane dehydrogenation}},
author = {Xiangnong Ding and Qiyang Zhang and Dmitry E. Doronkin and Tatiana Otroshchenko and Elizaveta Fedorova and Dongxu Wang and Stephan Bartling and Henrik Lund and David Linke and Evgenii V. Kondratenko},
journal = {EES Catalysis},
year = {2026},
month = sep,
doi = {10.1039/d6ey00192k},
url = {https://doi.org/10.1039/d6ey00192k},
note = {CC BY},
}
RIS
TY - JOUR
TI - Pt–(O)–Co coordination governs the durability of Pt-based catalysts for propane dehydrogenation
AU - Xiangnong Ding
AU - Qiyang Zhang
AU - Dmitry E. Doronkin
AU - Tatiana Otroshchenko
AU - Elizaveta Fedorova
AU - Dongxu Wang
AU - Stephan Bartling
AU - Henrik Lund
AU - David Linke
AU - Evgenii V. Kondratenko
PY - 2026
DA - 2026/09/01
JO - EES Catalysis
DO - 10.1039/d6ey00192k
UR - https://doi.org/10.1039/d6ey00192k
AB - Non-oxidative propane dehydrogenation (PDH) has emerged as a promising technology for on-purpose propene production, but the Pt-based catalysts currently used are expensive and prone to sintering of platinum, which negatively affects their performance. Their activity can be restored by redispersing the active species after treatment in environmentally harmful Cl2 or Cl-containing compounds. Herein, we demonstrate the application potential of Silicalite-1-supported Pt–Co bimetallic catalysts prepared by a simple impregnation method with a Pt loading of only 0.1 wt% and provide the origins of their high activity and especially durability. In terms of propene space-time yield related to the total amount of catalyst or platinum loading, the optimized 1Co0.1Pt/S-1 catalyst performed similarly to, or better than Pt-containing catalysts that had been previously developed and tested, albeit at higher temperatures. Another distinctive property of this catalyst is its high durability demonstrated in six dehydrogenation/regeneration cycles. The durability was found to increase progressively as the Co loading increases from 0 to 1 wt%. Comprehensive characterization revealed that the interaction strength between Pt and Co species, as reflected by the Pt–(O)–Co coordination number in the fresh catalysts, is the key factor governing catalyst durability. These findings provide valuable insights into the rational design of highly active and regenerable Pt-based dehydrogenation catalysts through the regulation of metal–metal interactions.
SN - 2753-801X
ER -