TY  - JOUR
AU  - Loemker, Patrick
AU  - Degerman, David
AU  - Goodwin, Christopher
AU  - Shipilin, Mikhail
AU  - Amann, Peter
AU  - Rodrigues, Gabriel L. S.
AU  - Garcia-Martinez, Fernando
AU  - Rameshan, Raffael
AU  - Gladh, Joergen
AU  - Wang, Hsin-Yi
AU  - Soldemo, Markus
AU  - Holm, Alexander
AU  - Tober, Steffen
AU  - Schober, Jan-Christian
AU  - Jacobse, Leon
AU  - Vonk, Vedran
AU  - Gleißner, Robert
AU  - Noei, Heshmat
AU  - Hegedues, Zoltan
AU  - Stierle, Andreas
AU  - Schlueter, Christoph
AU  - Nilsson, Anders
TI  - In-situ probing of the Fischer-Tropsch reaction on Co single crystal surfaces up to 1 bar
JO  - Nature Communications
VL  - 16
IS  - 1
SN  - 2041-1723
CY  - [London]
PB  - Springer Nature
M1  - PUBDB-2025-00982
SP  - 1005
PY  - 2025
AB  - The surface chemistry of the Fischer-Tropsch catalytic reaction over Co hasstill several unknows. Here, we report an in-situ X-ray photoelectron spectro-scopy study of Co 0001ð Þ and Co(1014), and in-situ high energy surface X-raydiffraction of Co 0001ð Þ, during the Fischer-Tropsch reaction at 0.15 bar - 1 barand 406 K - 548 K in a H<sub>2</sub>/CO gas mixture. We find that these Co surfacesremain metallic under all conditions and that the coverage of chemisorbedspecies ranges from 0.4–1.7 monolayers depending on pressure and tem-perature. The adsorbates include CO on-top, C/-C<sub>x</sub>H<sub>y</sub> and various longerhydrocarbon molecules, indicating a rate-limiting direct CO dissociationpathway and that only hydrocarbon species participate in the chain growth.The accumulation of hydrocarbon species points to the termination step beingrate-limiting also. Furthermore, we demonstrate that the intermediate surfacespecies are highly dynamic, appearing and disappearing with time delays afterrapid changes in the reactants’ composition.
LB  - PUB:(DE-HGF)16
C6  - pmid:39856064
UR  - <Go to ISI:>//WOS:001406369400023
DO  - DOI:10.1038/s41467-025-56082-8
UR  - https://bib-pubdb1.desy.de/record/624906
ER  -