In Situ Observation of C−C Coupling and Step Poisoning During the Growth of Hydrocarbon Chains on Ni(111)
(2023) In Angewandte Chemie - International Edition 62(1).- Abstract
The synthesis of high-value fuels and plastics starting from small hydrocarbon molecules plays a central role in the current transition towards renewable energy. However, the detailed mechanisms driving the growth of hydrocarbon chains remain to a large extent unknown. Here we investigated the formation of hydrocarbon chains resulting from acetylene polymerization on a Ni(111) model catalyst surface. Exploiting X-ray photoelectron spectroscopy up to near-ambient pressures, the intermediate species and reaction products have been identified. Complementary in situ scanning tunneling microscopy observations shed light onto the C−C coupling mechanism. While the step edges of the metal catalyst are commonly assumed to be the active sites for... (More)
The synthesis of high-value fuels and plastics starting from small hydrocarbon molecules plays a central role in the current transition towards renewable energy. However, the detailed mechanisms driving the growth of hydrocarbon chains remain to a large extent unknown. Here we investigated the formation of hydrocarbon chains resulting from acetylene polymerization on a Ni(111) model catalyst surface. Exploiting X-ray photoelectron spectroscopy up to near-ambient pressures, the intermediate species and reaction products have been identified. Complementary in situ scanning tunneling microscopy observations shed light onto the C−C coupling mechanism. While the step edges of the metal catalyst are commonly assumed to be the active sites for the C−C coupling, we showed that the polymerization occurs instead on the flat terraces of the metallic surface.
(Less)
- author
- organization
- publishing date
- 2023-01-02
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Fischer–Tropsch Synthesis, Heterogeneous Catalysis, Near-Ambient Pressure, Scanning Tunneling Microscopy
- in
- Angewandte Chemie - International Edition
- volume
- 62
- issue
- 1
- article number
- e202213295
- publisher
- John Wiley & Sons Inc.
- external identifiers
-
- scopus:85143272989
- pmid:36325959
- ISSN
- 1433-7851
- DOI
- 10.1002/anie.202213295
- language
- English
- LU publication?
- yes
- additional info
- Publisher Copyright: © 2022 The Authors. Angewandte Chemie International Edition published by Wiley-VCH GmbH.
- id
- 008e7826-7fe4-4b3b-9377-a073e9445336
- date added to LUP
- 2022-12-16 08:06:44
- date last changed
- 2024-09-19 10:52:31
@article{008e7826-7fe4-4b3b-9377-a073e9445336, abstract = {{<p>The synthesis of high-value fuels and plastics starting from small hydrocarbon molecules plays a central role in the current transition towards renewable energy. However, the detailed mechanisms driving the growth of hydrocarbon chains remain to a large extent unknown. Here we investigated the formation of hydrocarbon chains resulting from acetylene polymerization on a Ni(111) model catalyst surface. Exploiting X-ray photoelectron spectroscopy up to near-ambient pressures, the intermediate species and reaction products have been identified. Complementary in situ scanning tunneling microscopy observations shed light onto the C−C coupling mechanism. While the step edges of the metal catalyst are commonly assumed to be the active sites for the C−C coupling, we showed that the polymerization occurs instead on the flat terraces of the metallic surface.</p>}}, author = {{Zou, Zhiyu and Sala, Alessandro and Panighel, Mirco and Tosi, Ezequiel and Lacovig, Paolo and Lizzit, Silvano and Scardamaglia, Mattia and Kokkonen, Esko and Cepek, Cinzia and Africh, Cristina and Comelli, Giovanni and Günther, Sebastian and Patera, Laerte L.}}, issn = {{1433-7851}}, keywords = {{Fischer–Tropsch Synthesis; Heterogeneous Catalysis; Near-Ambient Pressure; Scanning Tunneling Microscopy}}, language = {{eng}}, month = {{01}}, number = {{1}}, publisher = {{John Wiley & Sons Inc.}}, series = {{Angewandte Chemie - International Edition}}, title = {{In Situ Observation of C−C Coupling and Step Poisoning During the Growth of Hydrocarbon Chains on Ni(111)}}, url = {{http://dx.doi.org/10.1002/anie.202213295}}, doi = {{10.1002/anie.202213295}}, volume = {{62}}, year = {{2023}}, }