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Žugec I, Tetenoire A, Muzas AS, Zhang Y, Jiang B, Alducin M, Juaristi JI. Understanding the Photoinduced Desorption and Oxidation of CO on Ru(0001) Using a Neural Network Potential Energy Surface. JACS AU 2024; 4:1997-2004. [PMID: 38818055 PMCID: PMC11134377 DOI: 10.1021/jacsau.4c00197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 04/25/2024] [Accepted: 04/29/2024] [Indexed: 06/01/2024]
Abstract
The study of ultrafast photoinduced dynamics of adsorbates on metal surfaces requires thorough investigation of laser-excited electrons and, in many cases, the highly excited surface lattice. While ab initio molecular dynamics with electronic friction and thermostats (Te, Tl)-AIMDEF addresses such complex modeling, it imposes severe computational costs, hindering quantitative comparison with experimental desorption probabilities. In order to bypass this limitation, we utilize the embedded atom neural network method to construct a potential energy surface (PES) for the coadsorption of CO and O on Ru(0001). Our results demonstrate that this PES not only reproduces the short-time ab initio dynamics but is also able to yield statistically significant data for long lasting trajectories that correlate well with experimental findings. Furthermore, the analysis of the laser-induced dynamics reveals the existence of a dynamic trapping state that acts as a precursor for CO desorption, and it is not observed under thermal conditions. Altogether, our results validate the underlying theoretical framework, providing robust support for the description of not only the photoinduced desorption but also the oxidation of CO in terms of nonequilibrated but thermal hot electrons and phonons.
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Affiliation(s)
- Ivan Žugec
- Centro
de Física de Materiales CFM/MPC (CSIC-UPV/EHU), Paseo Manuel de Lardizabal 5, 20018 Donostia-San Sebastián, Spain
| | - Auguste Tetenoire
- Donostia
International Physics Center (DIPC), Paseo Manuel de Lardizabal 4, 20018 Donostia-San Sebastián, Spain
| | - Alberto S. Muzas
- Centro
de Física de Materiales CFM/MPC (CSIC-UPV/EHU), Paseo Manuel de Lardizabal 5, 20018 Donostia-San Sebastián, Spain
- Departamento
de Polímeros y Materiales Avanzados: Física, Química
y Tecnología, Facultad de Química, UPV/EHU, Apartado 1072, 20018 Donostia-San Sebastián, Spain
| | - Yaolong Zhang
- Key
Laboratory of Precision and Intelligent Chemistry Department of Chemical
Physics, University of Science and Technology
of China, Hefei, Anhui 230026, China
| | - Bin Jiang
- Key
Laboratory of Precision and Intelligent Chemistry Department of Chemical
Physics, University of Science and Technology
of China, Hefei, Anhui 230026, China
| | - Maite Alducin
- Centro
de Física de Materiales CFM/MPC (CSIC-UPV/EHU), Paseo Manuel de Lardizabal 5, 20018 Donostia-San Sebastián, Spain
- Donostia
International Physics Center (DIPC), Paseo Manuel de Lardizabal 4, 20018 Donostia-San Sebastián, Spain
| | - J. Iñaki Juaristi
- Centro
de Física de Materiales CFM/MPC (CSIC-UPV/EHU), Paseo Manuel de Lardizabal 5, 20018 Donostia-San Sebastián, Spain
- Donostia
International Physics Center (DIPC), Paseo Manuel de Lardizabal 4, 20018 Donostia-San Sebastián, Spain
- Departamento
de Polímeros y Materiales Avanzados: Física, Química
y Tecnología, Facultad de Química, UPV/EHU, Apartado 1072, 20018 Donostia-San Sebastián, Spain
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S. Muzas A, Serrano Jiménez A, Zhang Y, Jiang B, Juaristi JI, Alducin M. Multicoverage Study of Femtosecond Laser-Induced Desorption of CO from Pd(111). J Phys Chem Lett 2024; 15:2587-2594. [PMID: 38416783 PMCID: PMC10926157 DOI: 10.1021/acs.jpclett.4c00026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 02/01/2024] [Accepted: 02/09/2024] [Indexed: 03/01/2024]
Abstract
We study the strong coverage dependence of the femtosecond laser-induced desorption of CO from Pd(111) using molecular dynamics simulations that consistently include the effect of the laser-induced hot electrons on both the adsorbates and surface atoms. Adiabatic forces are obtained from a multicoverage neural network potential energy surface that we construct using data from density functional theory calculations for 0.33 and 0.75 monolayer (ML). Our molecular dynamics simulations performed for these two trained coverages and an additional intermediate coverage of 0.60 ML reproduce well the peculiarities of the experimental findings. The performed simulations also permit us to disentangle the relative role played by the excited electrons and phonons on the desorption process and discover interesting properties of the reaction dynamics as the relevance that the precursor physisorption well acquires during the dynamics as coverage increases.
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Affiliation(s)
- Alberto S. Muzas
- Departamento
de Polímeros y Materiales Avanzados: Física, Química
y Tecnología, Facultad de Químicas (UPV/EHU), Apartado 1072, 20018 Donostia-San Sebastián, Spain
- Centro
de Física de Materiales CFM/MPC (CSIC−UPV/EHU), Paseo Manuel de Lardizabal 5, 20018 Donostia-San Sebastián, Spain
| | - Alfredo Serrano Jiménez
- Centro
de Física de Materiales CFM/MPC (CSIC−UPV/EHU), Paseo Manuel de Lardizabal 5, 20018 Donostia-San Sebastián, Spain
| | - Yaolong Zhang
- Hefei
National Laboratory for Physical Science at the Microscale, Key Laboratory
of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher
Education Institutes, Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui 230026, People’s
Republic of China
| | - Bin Jiang
- Hefei
National Laboratory for Physical Science at the Microscale, Key Laboratory
of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher
Education Institutes, Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui 230026, People’s
Republic of China
| | - J. Iñaki Juaristi
- Departamento
de Polímeros y Materiales Avanzados: Física, Química
y Tecnología, Facultad de Químicas (UPV/EHU), Apartado 1072, 20018 Donostia-San Sebastián, Spain
- Centro
de Física de Materiales CFM/MPC (CSIC−UPV/EHU), Paseo Manuel de Lardizabal 5, 20018 Donostia-San Sebastián, Spain
- Donostia
International Physics Center (DIPC), Paseo Manuel de Lardizabal 4, 20018 Donostia-San Sebastián, Spain
| | - Maite Alducin
- Centro
de Física de Materiales CFM/MPC (CSIC−UPV/EHU), Paseo Manuel de Lardizabal 5, 20018 Donostia-San Sebastián, Spain
- Donostia
International Physics Center (DIPC), Paseo Manuel de Lardizabal 4, 20018 Donostia-San Sebastián, Spain
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Tetenoire A, Ehlert C, Juaristi JI, Saalfrank P, Alducin M. Why Ultrafast Photoinduced CO Desorption Dominates over Oxidation on Ru(0001). J Phys Chem Lett 2022; 13:8516-8521. [PMID: 36067002 PMCID: PMC9486938 DOI: 10.1021/acs.jpclett.2c02327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Accepted: 08/31/2022] [Indexed: 06/15/2023]
Abstract
CO oxidation on Ru(0001) is a long-standing example of a reaction that, being thermally forbidden in ultrahigh vacuum, can be activated by femtosecond laser pulses. In spite of its relevance, the precise dynamics of the photoinduced oxidation process as well as the reasons behind the dominant role of the competing CO photodesorption remain unclear. Here we use ab initio molecular dynamics with electronic friction that account for the highly excited and nonequilibrated system created by the laser to investigate both reactions. Our simulations successfully reproduce the main experimental findings: the existence of photoinduced oxidation and desorption, the large desorption to oxidation branching ratio, and the changes in the O K-edge X-ray absorption spectra attributed to the initial stage of the oxidation process. Now, we are able to monitor in detail the ultrafast CO desorption and CO oxidation occurring in the highly excited system and to disentangle what causes the unexpected inertness to the otherwise energetically favored oxidation.
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Affiliation(s)
- Auguste Tetenoire
- Donostia
International Physics Center (DIPC), Paseo Manuel de Lardizabal 4, 20018, Donostia-San Sebastián, Spain
| | - Christopher Ehlert
- Heidelberg
Institute for Theoretical Studies (HITS gGmbH), Schloss-Wolfsbrunnenweg 35, 69118, Heidelberg, Germany
- Interdisciplinary
Center for Scientific Computing (IWR), Ruprecht-Karls-Universität
Heidelberg, Im Neuenheimer
Feld 205, 69120, Heidelberg, Germany
| | - J. I. Juaristi
- Donostia
International Physics Center (DIPC), Paseo Manuel de Lardizabal 4, 20018, Donostia-San Sebastián, Spain
- Departamento
de Polímeros y Materiales Avanzados: Física, Química
y Tecnología, Facultad de Químicas
(UPV/EHU), Apartado 1072, 20080, Donostia-San Sebastián, Spain
- Centro
de Física de Materiales CFM/MPC (CSIC-UPV/EHU), Paseo Manuel de Lardizabal 5, 20018, Donostia-San Sebastián, Spain
| | - Peter Saalfrank
- Institut
für Chemie, Universität Potsdam, Karl-Liebknecht-Straße 24-25, D-14476, Potsdam, Germany
| | - M. Alducin
- Donostia
International Physics Center (DIPC), Paseo Manuel de Lardizabal 4, 20018, Donostia-San Sebastián, Spain
- Centro
de Física de Materiales CFM/MPC (CSIC-UPV/EHU), Paseo Manuel de Lardizabal 5, 20018, Donostia-San Sebastián, Spain
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