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In Situ Observation of C−C Coupling and Step Poisoning During the Growth of Hydrocarbon Chains on Ni(111)

Zou, Zhiyu ; Sala, Alessandro ; Panighel, Mirco ; Tosi, Ezequiel ; Lacovig, Paolo ; Lizzit, Silvano ; Scardamaglia, Mattia LU ; Kokkonen, Esko LU orcid ; Cepek, Cinzia and Africh, Cristina , et al. (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.

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organization
publishing date
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
2024-06-27 03:08:42
@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}},
}