%0 Journal Article
%A Loemker, Patrick
%A Degerman, David
%A Goodwin, Christopher
%A Shipilin, Mikhail
%A Amann, Peter
%A Rodrigues, Gabriel L. S.
%A Garcia-Martinez, Fernando
%A Rameshan, Raffael
%A Gladh, Joergen
%A Wang, Hsin-Yi
%A Soldemo, Markus
%A Holm, Alexander
%A Tober, Steffen
%A Schober, Jan-Christian
%A Jacobse, Leon
%A Vonk, Vedran
%A Gleißner, Robert
%A Noei, Heshmat
%A Hegedues, Zoltan
%A Stierle, Andreas
%A Schlueter, Christoph
%A Nilsson, Anders
%T In-situ probing of the Fischer-Tropsch reaction on Co single crystal surfaces up to 1 bar
%J Nature Communications
%V 16
%N 1
%@ 2041-1723
%C [London]
%I Springer Nature
%M PUBDB-2025-00982
%P 1005
%D 2025
%X 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.
%F PUB:(DE-HGF)16
%9 Journal Article
%$ pmid:39856064
%U <Go to ISI:>//WOS:001406369400023
%R 10.1038/s41467-025-56082-8
%U https://bib-pubdb1.desy.de/record/624906