1
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Fallaque JG, Ramos M, Busnengo HF, Martín F, Díaz C. Normal and off-normal incidence dissociative dynamics of O 2(v,J) on ultrathin Cu films grown on Ru(0001). Phys Chem Chem Phys 2021; 23:7768-7776. [PMID: 33000830 DOI: 10.1039/d0cp03979a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The dissociative adsorption of molecular oxygen on metal surfaces has long been controversial, mostly due to the spin-triplet nature of its ground state, to possible non-adiabatic effects, such as an abrupt charge transfer from the metal to the molecule, or even to the role played by the surface electronic state. Here, we have studied the dissociative adsorption of O2 on CuML/Ru(0001) at normal and off-normal incidence, from thermal to super-thermal energies, using quasi-classical dynamics, in the framework of the generalized Langevin oscillator model, and density functional theory based on a multidimensional potential energy surface. Our simulations reveal a rather intriguing behavior of dissociative adsorption probabilities, which exhibit normal energy scaling at incidence energies below the reaction barriers and total energy scaling above, irrespective of the reaction channel, either direct dissociation, trapping dissociation, or molecular adsorption. We directly compare our results with existing scanning tunneling spectroscopy and microscopy measurements. From this comparison, we infer that the observed experimental behavior at thermal energies may be due to ligand and strain effects, as already found for super-thermal incidence energies.
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Affiliation(s)
- J G Fallaque
- Departamento de Química, Módulo 13, Universidad Autónoma de Madrid, 28049 Madrid, Spain
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2
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Rivero Santamaría A, Ramos M, Alducin M, Busnengo HF, Díez Muiño R, Juaristi JI. High-Dimensional Atomistic Neural Network Potential to Study the Alignment-Resolved O 2 Scattering from Highly Oriented Pyrolytic Graphite. J Phys Chem A 2021; 125:2588-2600. [PMID: 33734696 DOI: 10.1021/acs.jpca.1c00835] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A high dimensional and accurate atomistic neural network potential energy surface (ANN-PES) that describes the interaction between one O2 molecule and a highly oriented pyrolytic graphite (HOPG) surface has been constructed using the open-source package (aenet). The validation of the PES is performed by paying attention to static characteristics as well as by testing its performance in reproducing previous ab initio molecular dynamics simulation results. Subsequently, the ANN-PES is used to perform quasi-classical molecular dynamics calculations of the alignment-dependent scattering of O2 from HOPG. The results are obtained for 200 meV O2 molecules with different initial alignments impinging with a polar incidence angle with respect to the surface normal of 22.5° on a thermalized (110 and 300 K) graphite surface. The choice of these initial conditions in our simulations is made to perform comparisons to recent experimental results on this system. Our results show that the scattering of O2 from the HOPG surface is a rather direct process, that the angular distributions are alignment dependent, and that the final translational energy of end-on molecules is around 20% lower than that of side-on molecules. Upon collision with the surface, the molecules that are initially aligned perpendicular to the surface become highly rotationally excited, whereas a very small change in the rotational state of the scattered molecules is observed for the initial parallel alignments. The latter confirms the energy transfer dependence on the stereodynamics for the present system. The results of our simulations are in overall agreement with the experimental observations regarding the shape of the angular distributions and the alignment dependence of the in-plane reflected molecules.
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Affiliation(s)
- Alejandro Rivero Santamaría
- 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
| | - Maximiliano Ramos
- Instituto de Física Rosario, CONICET and Universidad Nacional de Rosario, Bv. 27 de Febrero 210 bis, 2000 Rosario, Argentina.,Facultad de Ciencias Exactas, Ingeniera y Agrimensura, Universidad Nacional de Rosario, Av. Pellegrini 250, S2000BTP Rosario, Argentina
| | - 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
| | - Heriberto Fabio Busnengo
- Instituto de Física Rosario, CONICET and Universidad Nacional de Rosario, Bv. 27 de Febrero 210 bis, 2000 Rosario, Argentina
| | - Ricardo Díez Muiño
- 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 Químicas, Universidad del País Vasco (UPV/EHU), Apartado 1072, 20080 Donostia-San Sebastián, Spain
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3
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Farías D, Minniti M, Miranda R. Reactivity of O 2 on Pd/Ru(0001) and PdRu/Ru(0001) surface alloys. J Chem Phys 2017; 146:204701. [PMID: 28571372 PMCID: PMC5443688 DOI: 10.1063/1.4983994] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Accepted: 05/05/2017] [Indexed: 12/12/2022] Open
Abstract
The reactivity of a Pd monolayer epitaxially grown on Ru(0001) toward O2 has been investigated by molecular beam techniques. O2 initial sticking coefficients were determined using the King and Wells method in the incident energy range of 40-450 meV and for sample temperatures of 100 K and 300 K, and compared to the corresponding values measured on the clean Ru(0001) and Pd(111) surfaces. In contrast to the high reactivity shown by Ru(0001) at 100 K, the Pd/Ru(0001) system exhibits a monotonic decrease in the sticking probability of O2 as a function of normal incident energy. At room temperature, the system was found to be inert. Thermal desorption measurements show that O2 is adsorbed molecularly at 100 K. A completely different behaviour has been measured for the Pd0.95Ru0.05/Ru(0001) surface alloy. On this surface, the O2 sticking probability increases with incident energy and resembles the one observed on the clean Ru(0001) surface, even at 300 K. Thermal desorption measurements point to dissociative adsorption of O2 in this system. Both the charge transfer from the Pd to the Ru substrate and the compressive strain on the Pd monolayer contribute to decrease in the reactivity of the Pd/Ru(0001) system well below those of both Ru(0001) and Pd(111).
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Affiliation(s)
- D Farías
- Departamento de Física de la Materia Condensada, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - M Minniti
- Departamento de Física de la Materia Condensada, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - R Miranda
- Departamento de Física de la Materia Condensada, Universidad Autónoma de Madrid, 28049 Madrid, Spain
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Ge J, He D, Chen W, Ju H, Zhang H, Chao T, Wang X, You R, Lin Y, Wang Y, Zhu J, Li H, Xiao B, Huang W, Wu Y, Hong X, Li Y. Atomically Dispersed Ru on Ultrathin Pd Nanoribbons. J Am Chem Soc 2016; 138:13850-13853. [DOI: 10.1021/jacs.6b09246] [Citation(s) in RCA: 109] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Jingjie Ge
- Center
of Advanced Nanocatalysis (CAN) and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Dongsheng He
- Materials
Characterization and Preparation Center (MCPC), South University of Science and Technology of China, Shen-zhen, Guangdong 518055, China
| | - Wenxing Chen
- Department
of Chemistry and Collaborative Innovation Center for Nanomaterial
Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Huanxin Ju
- National
Synchrotron Radiation Laboratory (NSRL), University of Science and Technology of China, Hefei, Anhui 230029, China
| | - Han Zhang
- Center
of Advanced Nanocatalysis (CAN) and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Tingting Chao
- Center
of Advanced Nanocatalysis (CAN) and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Xiaoqian Wang
- Center
of Advanced Nanocatalysis (CAN) and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Rui You
- Center
of Advanced Nanocatalysis (CAN) and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Yue Lin
- Center
of Advanced Nanocatalysis (CAN) and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Yu Wang
- Shanghai
Synchrontron Radiation Facilities, Shanghai Institute of Applied Physics, Chinese Academy of Science, Shanghai 201800, China
| | - Junfa Zhu
- National
Synchrotron Radiation Laboratory (NSRL), University of Science and Technology of China, Hefei, Anhui 230029, China
| | - Hai Li
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Technology University, Nanjing, Jiangsu 211816, China
| | - Bin Xiao
- Center
of Advanced Nanocatalysis (CAN) and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Weixin Huang
- Center
of Advanced Nanocatalysis (CAN) and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Yuen Wu
- Center
of Advanced Nanocatalysis (CAN) and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Xun Hong
- Center
of Advanced Nanocatalysis (CAN) and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Yadong Li
- Center
of Advanced Nanocatalysis (CAN) and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
- Department
of Chemistry and Collaborative Innovation Center for Nanomaterial
Science and Engineering, Tsinghua University, Beijing 100084, China
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5
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Wu D, Kusada K, Kitagawa H. Recent progress in the structure control of Pd-Ru bimetallic nanomaterials. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2016; 17:583-596. [PMID: 27877905 PMCID: PMC5111557 DOI: 10.1080/14686996.2016.1221727] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2016] [Revised: 08/03/2016] [Accepted: 08/04/2016] [Indexed: 05/27/2023]
Abstract
Pd and Ru are two key elements of the platinum-group metals that are invaluable to areas such as catalysis and energy storage/transfer. To maximize the potential of the Pd and Ru elements, significant effort has been devoted to synthesizing Pd-Ru bimetallic materials. However, most of the reports dealing with this subject describe phase-separated structures such as near-surface alloys and physical mixtures of monometallic nanoparticles (NPs). Pd-Ru alloys with homogenous structure and arbitrary metallic ratio are highly desired for basic scientific research and commercial material design. In the past several years, with the development of nanoscience, Pd-Ru bimetallic alloys with different architectures including heterostructure, core-shell structure and solid-solution alloy were successfully synthesized. In particular, we have now reached the stage of being able to obtain Pd-Ru solid-solution alloy NPs over the whole composition range. These Pd-Ru bimetallic alloys are better catalysts than their parent metal NPs in many catalytic reactions, because the electronic structures of Pd and Ru are modified by alloying. In this review, we describe the recent development in the structure control of Pd-Ru bimetallic nanomaterials. Aiming for a better understanding of the synthesis strategies, some fundamental details including fabrication methods and formation mechanisms are discussed. We stress that the modification of electronic structure, originating from different nanoscale geometry and chemical composition, profoundly affects material properties. Finally, we discuss open issues in this field.
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Affiliation(s)
- Dongshuang Wu
- Division of Chemistry, Graduate School of Science, Kyoto University, Kyoto, Japan
| | - Kohei Kusada
- Division of Chemistry, Graduate School of Science, Kyoto University, Kyoto, Japan
| | - Hiroshi Kitagawa
- Division of Chemistry, Graduate School of Science, Kyoto University, Kyoto, Japan
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6
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Goikoetxea I, Alducin M, Díez Muiño R, Juaristi JI. The dynamics of adsorption and dissociation of N2 in a monolayer of iron on W(110). Phys Chem Chem Phys 2015; 17:19432-45. [DOI: 10.1039/c5cp02051d] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Does N2 adsorption increase on strained Fe monolayers?
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Affiliation(s)
- I. Goikoetxea
- Centro de Física de Materiales CFM/MPC (CSIC-UPV/EHU)
- 20018 Donostia-San Sebastián
- Spain
| | - M. Alducin
- Centro de Física de Materiales CFM/MPC (CSIC-UPV/EHU)
- 20018 Donostia-San Sebastián
- Spain
- Donostia International Physics Center (DIPC)
- 20018 Donostia-San Sebastián
| | - R. Díez Muiño
- Centro de Física de Materiales CFM/MPC (CSIC-UPV/EHU)
- 20018 Donostia-San Sebastián
- Spain
- Donostia International Physics Center (DIPC)
- 20018 Donostia-San Sebastián
| | - J. I. Juaristi
- Centro de Física de Materiales CFM/MPC (CSIC-UPV/EHU)
- 20018 Donostia-San Sebastián
- Spain
- Donostia International Physics Center (DIPC)
- 20018 Donostia-San Sebastián
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7
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Goikoetxea I, Juaristi JI, Díez Muiño R, Alducin M. Surface strain improves molecular adsorption but hampers dissociation for N2 on the Fe/W(110) surface. PHYSICAL REVIEW LETTERS 2014; 113:066103. [PMID: 25148338 DOI: 10.1103/physrevlett.113.066103] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2014] [Indexed: 06/03/2023]
Abstract
We compare the adsorption dynamics of N(2) on the unstrained Fe(110) and on a 10% expanded Fe monolayer grown on W(110) by performing classical molecular dynamics simulations that use potential energy surfaces calculated with density functional theory. Our results allow us to understand why, experimentally, the molecular adsorption of N(2) is observed on the strained layer but not on Fe(110). Surprisingly, we also find that while surface strain favors the molecular adsorption of N(2) it seems, on the contrary, to impede the dissociative adsorption. This result contrasts with previous examples for which strain is found to modify equally the energetics of chemisorption and dissociation.
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Affiliation(s)
- I Goikoetxea
- Humboldt Universität zu Berlin, Institut für Chemie, Unter den Linden 6, D-10009 Berlin, Germany and Centro de Física de Materiales CFM/MPC (CSIC-UPV/EHU), Paseo Manuel de Lardizabal 5, 20018 Donostia-San Sebastián, Spain
| | - J I Juaristi
- Centro de Física de Materiales CFM/MPC (CSIC-UPV/EHU), Paseo Manuel de Lardizabal 5, 20018 Donostia-San Sebastián, Spain and Departamento de Física de Materiales, Facultad de Químicas (UPV/EHU), Apartado 1072, 20080 Donostia-San Sebastián, Spain and Donostia International Physics Center (DIPC), Paseo Manuel de Lardizabal 4, 20018 Donostia-San Sebastián, Spain
| | - R Díez Muiño
- Centro de Física de Materiales CFM/MPC (CSIC-UPV/EHU), Paseo Manuel de Lardizabal 5, 20018 Donostia-San Sebastián, Spain and Donostia International Physics Center (DIPC), Paseo Manuel de Lardizabal 4, 20018 Donostia-San Sebastián, Spain
| | - M Alducin
- Centro de Física de Materiales CFM/MPC (CSIC-UPV/EHU), Paseo Manuel de Lardizabal 5, 20018 Donostia-San Sebastián, Spain and Donostia International Physics Center (DIPC), Paseo Manuel de Lardizabal 4, 20018 Donostia-San Sebastián, Spain
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8
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Pétuya R, Larrégaray P, Crespos C, Busnengo HF, Martínez AE. Dynamics of H2 Eley-Rideal abstraction from W(110): Sensitivity to the representation of the molecule-surface potential. J Chem Phys 2014; 141:024701. [DOI: 10.1063/1.4885139] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- R. Pétuya
- Université de Bordeaux, ISM, CNRS UMR 5255, 33405 Talence Cedex, France
- CNRS, ISM, UMR5255, F-33400 Talence, France
| | - P. Larrégaray
- Université de Bordeaux, ISM, CNRS UMR 5255, 33405 Talence Cedex, France
- CNRS, ISM, UMR5255, F-33400 Talence, France
| | - C. Crespos
- Université de Bordeaux, ISM, CNRS UMR 5255, 33405 Talence Cedex, France
- CNRS, ISM, UMR5255, F-33400 Talence, France
| | - H. F. Busnengo
- Instituto de Física Rosario (IFIR) CONICET-UNR. Ocampo y Esmeralda (2000) Rosario, Argentina
| | - A. E. Martínez
- Instituto de Física Rosario (IFIR) CONICET-UNR. Ocampo y Esmeralda (2000) Rosario, Argentina
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