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Synchronizing gas injections and time-resolved data acquisition for perturbation-enhanced APXPS experiments

Redekop, Evgeniy A. ; Johansson, Niclas LU ; Kokkonen, Esko LU orcid ; Urpelainen, Samuli LU ; Lopes Da Silva, Felipe LU ; Kaipio, Mikko ; Nieminen, Heta Elisa ; Rehman, Foqia LU ; Miikkulainen, Ville and Ritala, Mikko , et al. (2021) In Review of Scientific Instruments 92(4).
Abstract

An experimental approach is described in which well-defined perturbations of the gas feed into an Ambient Pressure X-ray Photoelectron Spectroscopy (APXPS) cell are fully synchronized with the time-resolved x-ray photoelectron spectroscopy data acquisition. These experiments unlock new possibilities for investigating the properties of materials and chemical reactions mediated by their surfaces, such as those in heterogeneous catalysis, surface science, and coating/deposition applications. Implementation of this approach, which is termed perturbation-enhanced APXPS, at the SPECIES beamline of MAX IV Laboratory is discussed along with several experimental examples including individual pulses of N2 gas over a Au foil, a multi-pulse... (More)

An experimental approach is described in which well-defined perturbations of the gas feed into an Ambient Pressure X-ray Photoelectron Spectroscopy (APXPS) cell are fully synchronized with the time-resolved x-ray photoelectron spectroscopy data acquisition. These experiments unlock new possibilities for investigating the properties of materials and chemical reactions mediated by their surfaces, such as those in heterogeneous catalysis, surface science, and coating/deposition applications. Implementation of this approach, which is termed perturbation-enhanced APXPS, at the SPECIES beamline of MAX IV Laboratory is discussed along with several experimental examples including individual pulses of N2 gas over a Au foil, a multi-pulse titration of oxygen vacancies in a pre-reduced TiO2 single crystal with O2 gas, and a sequence of alternating precursor pulses for atomic layer deposition of TiO2 on a silicon wafer substrate.

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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Review of Scientific Instruments
volume
92
issue
4
article number
044101
publisher
American Institute of Physics (AIP)
external identifiers
  • scopus:85103795364
  • pmid:34243480
ISSN
0034-6748
DOI
10.1063/5.0039957
language
English
LU publication?
yes
id
7120d0b8-5c2c-4a5f-918c-9ebe8f623a29
date added to LUP
2021-04-19 09:20:28
date last changed
2025-01-26 09:16:11
@article{7120d0b8-5c2c-4a5f-918c-9ebe8f623a29,
  abstract     = {{<p>An experimental approach is described in which well-defined perturbations of the gas feed into an Ambient Pressure X-ray Photoelectron Spectroscopy (APXPS) cell are fully synchronized with the time-resolved x-ray photoelectron spectroscopy data acquisition. These experiments unlock new possibilities for investigating the properties of materials and chemical reactions mediated by their surfaces, such as those in heterogeneous catalysis, surface science, and coating/deposition applications. Implementation of this approach, which is termed perturbation-enhanced APXPS, at the SPECIES beamline of MAX IV Laboratory is discussed along with several experimental examples including individual pulses of N2 gas over a Au foil, a multi-pulse titration of oxygen vacancies in a pre-reduced TiO2 single crystal with O2 gas, and a sequence of alternating precursor pulses for atomic layer deposition of TiO2 on a silicon wafer substrate. </p>}},
  author       = {{Redekop, Evgeniy A. and Johansson, Niclas and Kokkonen, Esko and Urpelainen, Samuli and Lopes Da Silva, Felipe and Kaipio, Mikko and Nieminen, Heta Elisa and Rehman, Foqia and Miikkulainen, Ville and Ritala, Mikko and Olsbye, Unni}},
  issn         = {{0034-6748}},
  language     = {{eng}},
  number       = {{4}},
  publisher    = {{American Institute of Physics (AIP)}},
  series       = {{Review of Scientific Instruments}},
  title        = {{Synchronizing gas injections and time-resolved data acquisition for perturbation-enhanced APXPS experiments}},
  url          = {{http://dx.doi.org/10.1063/5.0039957}},
  doi          = {{10.1063/5.0039957}},
  volume       = {{92}},
  year         = {{2021}},
}