1
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Liu J, Hagopian A, McCrum IT, Doblhoff-Dier K, Koper MTM. Unraveling the Origin of the Repulsive Interaction between Hydrogen Adsorbates on Platinum Single-Crystal Electrodes. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2024; 128:15019-15028. [PMID: 39291272 PMCID: PMC11403660 DOI: 10.1021/acs.jpcc.4c05193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/01/2024] [Revised: 08/21/2024] [Accepted: 08/22/2024] [Indexed: 09/19/2024]
Abstract
Hydrogen adsorption on platinum (Pt) single-crystal electrodes has been studied intensively in both experiments and computations. Yet, the precise origin and nature of the repulsive interactions observed between hydrogen adsorbates (Hads) have remained elusive. Here, we use first-principles density functional theory calculations to investigate in detail the interactions between Hads on Pt(111), Pt(100), and Pt(110) surfaces. The repulsive interaction between Hads on Pt(111) is deconvoluted into three different physical contributions, namely, (i) electrostatic interactions, (ii) surface distortion effect, and (iii) surface coordination effect. The long-range electrostatic interaction, which is generally considered the most important source of repulsive interactions in surface adsorption, was found to contribute less than 30% of the overall repulsive interaction. The remaining >70% arises from the other two contributions, underscoring the critical influence of surface-mediated interactions on the adsorption process. Surface distortion and coordination effects are found to strongly depend on the coverage and adsorption geometry: the effect of surface distortion dominates when adsorbates reside two or more Pt atoms apart; the effect of surface coordination dominates if hydrogen is adsorbed on neighboring adsorption sites. The above effects are considerably less pronounced on Pt(100) and Pt(110), therefore resulting in weaker interactions between Hads on these two surfaces. Overall, the study highlights the relevance of surface-mediated effects on adsorbate-adsorbate interactions, such as the often-overlooked surface distortion. The effect of these interactions on the hotly debated adsorption site for the adsorbed hydrogen intermediate in the hydrogen evolution reaction is also discussed.
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Affiliation(s)
- Jinwen Liu
- Leiden Institute of Chemistry, Leiden University, Leiden 2333 CC, The Netherlands
| | - Arthur Hagopian
- Leiden Institute of Chemistry, Leiden University, Leiden 2333 CC, The Netherlands
| | - Ian T McCrum
- Department of Chemical and Biomolecular Engineering, Clarkson University, Potsdam, New York 13699, United States
| | | | - Marc T M Koper
- Leiden Institute of Chemistry, Leiden University, Leiden 2333 CC, The Netherlands
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2
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Han T, Li Y, Cao Y, Lee I, Zhou X, Frenkel AI, Zaera F. In situ identification of surface sites in Cu-Pt bimetallic catalysts: Gas-induced metal segregation. J Chem Phys 2022; 157:234706. [PMID: 36550054 DOI: 10.1063/5.0130431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
The effect of gases on the surface composition of Cu-Pt bimetallic catalysts has been tested by in situ infrared (IR) and x-ray absorption spectroscopies. Diffusion of Pt atoms within the Cu-Pt nanoparticles was observed both in vacuum and under gaseous atmospheres. Vacuum IR spectra of CO adsorbed on CuPtx/SBA-15 catalysts (x = 0-∞) at 125 K showed no bonding on Pt regardless of Pt content, but reversible Pt segregation to the surface was seen with the high-Pt-content (x ≥ 0.2) samples upon heating to 225 K. In situ IR spectra in CO atmospheres also highlighted the reversible segregation of Pt to the surface and its diffusion back into the bulk when cycling the temperature from 295 to 495 K and back, most evidently for diluted single-atom alloy catalysts (x ≤ 0.01). Similar behavior was possibly observed under H2 using small amounts of CO as a probe molecule. In situ x-ray absorption near-edge structure data obtained for CuPt0.2/SBA-15 under both CO and He pointed to the metallic nature of the Pt atoms irrespective of gas or temperature, but analysis of the extended x-ray absorption fine structure identified a change in coordination environment around the Pt atoms, from a (Pt-Cu):(Pt-Pt) coordination number ratio of ∼6:6 at or below 445 K to 8:4 at 495 K. The main conclusion is that Cu-Pt bimetallic catalysts are dynamic, with the composition of their surfaces being dependent on temperature in gaseous environments.
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Affiliation(s)
- Tongxin Han
- Department of Chemistry and UCR Center for Catalysis, University of California, Riverside, California 92521, USA
| | - Yuanyuan Li
- Department of Materials Science and Chemical Engineering, Stony Brook University, Stony Brook, New York 11794, USA
| | - Yueqiang Cao
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Ilkeun Lee
- Department of Chemistry and UCR Center for Catalysis, University of California, Riverside, California 92521, USA
| | - Xinggui Zhou
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Anatoly I Frenkel
- Department of Materials Science and Chemical Engineering, Stony Brook University, Stony Brook, New York 11794, USA
| | - Francisco Zaera
- Department of Chemistry and UCR Center for Catalysis, University of California, Riverside, California 92521, USA
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3
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Zhang X, Li K, Wen B, Ma J, Diao D. Machine learning accelerated DFT research on platinum-modified amorphous alloy surface catalysts. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.107833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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4
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Borodin D, Hertl N, Park GB, Schwarzer M, Fingerhut J, Wang Y, Zuo J, Nitz F, Skoulatakis G, Kandratsenka A, Auerbach DJ, Schwarzer D, Guo H, Kitsopoulos TN, Wodtke AM. Quantum effects in thermal reaction rates at metal surfaces. Science 2022; 377:394-398. [PMID: 35862529 DOI: 10.1126/science.abq1414] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
There is wide interest in developing accurate theories for predicting rates of chemical reactions that occur at metal surfaces, especially for applications in industrial catalysis. Conventional methods contain many approximations that lack experimental validation. In practice, there are few reactions where sufficiently accurate experimental data exist to even allow meaningful comparisons to theory. Here, we present experimentally derived thermal rate constants for hydrogen atom recombination on platinum single-crystal surfaces, which are accurate enough to test established theoretical approximations. A quantum rate model is also presented, making possible a direct evaluation of the accuracy of commonly used approximations to adsorbate entropy. We find that neglecting the wave nature of adsorbed hydrogen atoms and their electronic spin degeneracy leads to a 10× to 1000× overestimation of the rate constant for temperatures relevant to heterogeneous catalysis. These quantum effects are also found to be important for nanoparticle catalysts.
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Affiliation(s)
- Dmitriy Borodin
- Institute for Physical Chemistry, University of Göttingen, Tammannstraße 6, 37077 Göttingen, Germany.,Department of Dynamics at Surfaces, Max Planck Institute for Multidisciplinary Sciences, am Faßberg 11, 37077 Göttingen, Germany
| | - Nils Hertl
- Institute for Physical Chemistry, University of Göttingen, Tammannstraße 6, 37077 Göttingen, Germany.,Department of Dynamics at Surfaces, Max Planck Institute for Multidisciplinary Sciences, am Faßberg 11, 37077 Göttingen, Germany
| | - G Barratt Park
- Institute for Physical Chemistry, University of Göttingen, Tammannstraße 6, 37077 Göttingen, Germany.,Department of Dynamics at Surfaces, Max Planck Institute for Multidisciplinary Sciences, am Faßberg 11, 37077 Göttingen, Germany.,Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX 79409-1061, USA
| | - Michael Schwarzer
- Institute for Physical Chemistry, University of Göttingen, Tammannstraße 6, 37077 Göttingen, Germany
| | - Jan Fingerhut
- Institute for Physical Chemistry, University of Göttingen, Tammannstraße 6, 37077 Göttingen, Germany
| | - Yingqi Wang
- Department of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, NM 87131, USA
| | - Junxiang Zuo
- Department of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, NM 87131, USA
| | - Florian Nitz
- Institute for Physical Chemistry, University of Göttingen, Tammannstraße 6, 37077 Göttingen, Germany
| | - Georgios Skoulatakis
- Department of Dynamics at Surfaces, Max Planck Institute for Multidisciplinary Sciences, am Faßberg 11, 37077 Göttingen, Germany
| | - Alexander Kandratsenka
- Department of Dynamics at Surfaces, Max Planck Institute for Multidisciplinary Sciences, am Faßberg 11, 37077 Göttingen, Germany
| | - Daniel J Auerbach
- Department of Dynamics at Surfaces, Max Planck Institute for Multidisciplinary Sciences, am Faßberg 11, 37077 Göttingen, Germany
| | - Dirk Schwarzer
- Department of Dynamics at Surfaces, Max Planck Institute for Multidisciplinary Sciences, am Faßberg 11, 37077 Göttingen, Germany
| | - Hua Guo
- Department of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, NM 87131, USA
| | - Theofanis N Kitsopoulos
- Institute for Physical Chemistry, University of Göttingen, Tammannstraße 6, 37077 Göttingen, Germany.,Department of Dynamics at Surfaces, Max Planck Institute for Multidisciplinary Sciences, am Faßberg 11, 37077 Göttingen, Germany.,Department of Chemistry, University of Crete, 71003 Heraklion, Greece.,Institute of Electronic Structure and Laser, FORTH, 71110 Heraklion, Greece
| | - Alec M Wodtke
- Institute for Physical Chemistry, University of Göttingen, Tammannstraße 6, 37077 Göttingen, Germany.,Department of Dynamics at Surfaces, Max Planck Institute for Multidisciplinary Sciences, am Faßberg 11, 37077 Göttingen, Germany
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5
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Parker SF, Mukhopadhyay S, Jiménez-Ruiz M, Albers PW. Adsorbed States of Hydrogen on Platinum: A New Perspective. Chemistry 2019; 25:6496-6499. [PMID: 30919526 PMCID: PMC6767033 DOI: 10.1002/chem.201900351] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Indexed: 01/20/2023]
Abstract
The interaction of hydrogen with platinum is enormously important in many areas of catalysis. The most significant of these are in polymer electrolyte membrane fuel cells (PEMFC), in which carbon‐supported platinum is used to dissociate hydrogen gas at the anode. The nature of adsorbed hydrogen on platinum has been studied for many years on single‐crystal surfaces, on high‐surface area‐platinum metal (Raney platinum and platinum black), and on supported catalysts. Many forms of vibrational spectroscopy have played a key role in these studies, however, there is still no clear consensus as to the assignment of the spectra. In this work, ab initio molecular dynamics (AIMD) and lattice dynamics were used to study a 1.1 nm nanoparticle, Pt44H80. The results were compared to new inelastic neutron scattering spectra of hydrogen on platinum black and of a carbon‐supported platinum fuel cell catalyst and an assignment scheme that rationalises all previous data is proposed.
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Affiliation(s)
- Stewart F Parker
- ISIS Facility, STFC Rutherford Appleton Laboratory, Chilton, Didcot, OX11 0QX, UK
| | | | - Mónica Jiménez-Ruiz
- Institut Laue-Langevin, 71 avenue des Martyrs, CS, 20156 38042, Grenoble, Cedex 9, France
| | - Peter W Albers
- Evonik Technology & Infrastructure GmbH, Rodenbacher Chaussee 4, 63457, Hanau/Wolfgang, Germany
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6
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Yan L, Sun Y, Yamamoto Y, Kasamatsu S, Hamada I, Sugino O. Hydrogen adsorption on Pt(111) revisited from random phase approximation. J Chem Phys 2018; 149:164702. [PMID: 30384717 DOI: 10.1063/1.5050830] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
Hydrogen adsorption on Pt(111) has been actively studied using semilocal approximations within the density functional theory featuring simultaneous adsorption of hydrogen on multiple sites, i.e., fcc, atop, and hcp. Considering the accuracy needed to detail the feature, we revisit this problem with the help of higher level of theory, the adiabatic connection fluctuation dissipation theorem within the random phase approximation. Our simulation emphasizes important roles played by the equilibrium lattice parameter of the surface, mass of the hydrogen isotope, and hydrogen coverage. The insight acquired in this study provides a way to consistently interpret electrochemical and spectroscopic data.
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Affiliation(s)
- Lei Yan
- Institute for Solid State Physics, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8581, Japan
| | - Yang Sun
- Global Research Center for Environment and Energy Based on Nanomaterials Science (GREEN), National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-0044, Japan
| | - Yoshiyuki Yamamoto
- Institute for Solid State Physics, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8581, Japan
| | - Shusuke Kasamatsu
- Institute for Solid State Physics, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8581, Japan
| | - Ikutaro Hamada
- Global Research Center for Environment and Energy Based on Nanomaterials Science (GREEN), National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-0044, Japan
| | - Osamu Sugino
- Institute for Solid State Physics, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8581, Japan
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7
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Baraiya BA, Mankad V, Jha PK. Adsorption Energetics of Atoms and Diatomic Gases with Electrocatalysis Approach towards Hydrogen and Oxygen Evolution Reaction on Pt Surfaces. ChemistrySelect 2018. [DOI: 10.1002/slct.201802072] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Bhumi A. Baraiya
- Department of Physics; Faculty of Science; The Maharaja Sayajirao University of Baroda; Vadodara-390002, Gujarat India
| | - Venu Mankad
- Department of Physics; School of Technology, GITAM, Hyderabad campus; Hyderabad-502329, Telangana India
| | - Prafulla K. Jha
- Department of Physics; Faculty of Science; The Maharaja Sayajirao University of Baroda; Vadodara-390002, Gujarat India
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8
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Bai Y, Chen BWJ, Peng G, Mavrikakis M. Density functional theory study of thermodynamic and kinetic isotope effects of H2/D2 dissociative adsorption on transition metals. Catal Sci Technol 2018. [DOI: 10.1039/c8cy00878g] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Thermodynamic/kinetic isotope effects for H2/D2 dissociative adsorption calculated on metal surfaces offer a means to identify active sites.
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Affiliation(s)
- Yunhai Bai
- Department of Chemical and Biological Engineering
- University of Wisconsin – Madison
- Madison
- USA
| | - Benjamin W. J. Chen
- Department of Chemical and Biological Engineering
- University of Wisconsin – Madison
- Madison
- USA
| | - Guowen Peng
- Department of Chemical and Biological Engineering
- University of Wisconsin – Madison
- Madison
- USA
| | - Manos Mavrikakis
- Department of Chemical and Biological Engineering
- University of Wisconsin – Madison
- Madison
- USA
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9
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Electrodeposition of Ag Overlayers onto Pt(111): Structural, Electrochemical and Electrocatalytic Properties. Electrocatalysis (N Y) 2017. [DOI: 10.1007/s12678-017-0386-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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10
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Gossenberger F, Roman T, Groß A. Hydrogen and halide co-adsorption on Pt(111) in an electrochemical environment: a computational perspective. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.08.117] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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11
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12
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Keppeler M, Bräuning G, Radhakrishnan SG, Liu X, Jensen C, Roduner E. Reactivity of diatomics and of ethylene on zeolite-supported 13-atom platinum nanoclusters. Catal Sci Technol 2016. [DOI: 10.1039/c6cy00182c] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
CO and NO react on hydrogen-covered 13-atom Pt clusters, O2 does not, and the hydrogenation of ethene shows structure sensitivity.
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Affiliation(s)
- M. Keppeler
- Institut für Physikalische Chemie
- Universität Stuttgart
- Pfaffenwaldring 55
- Stuttgart
- Germany
| | - G. Bräuning
- Institut für Physikalische Chemie
- Universität Stuttgart
- Pfaffenwaldring 55
- Stuttgart
- Germany
| | - S. G. Radhakrishnan
- Department of Chemistry
- University of Pretoria
- Pretoria 0002
- Republic of South Africa
| | - X. Liu
- Institut für Physikalische Chemie
- Universität Stuttgart
- Pfaffenwaldring 55
- Stuttgart
- Germany
| | - C. Jensen
- Institut für Physikalische Chemie
- Universität Stuttgart
- Pfaffenwaldring 55
- Stuttgart
- Germany
| | - E. Roduner
- Institut für Physikalische Chemie
- Universität Stuttgart
- Pfaffenwaldring 55
- Stuttgart
- Germany
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13
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Sakong S, Naderian M, Mathew K, Hennig RG, Groß A. Density functional theory study of the electrochemical interface between a Pt electrode and an aqueous electrolyte using an implicit solvent method. J Chem Phys 2015; 142:234107. [DOI: 10.1063/1.4922615] [Citation(s) in RCA: 96] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Affiliation(s)
- Sung Sakong
- Institute of Theoretical Chemistry, Ulm University, 89069 Ulm, Germany
| | - Maryam Naderian
- Institute of Theoretical Chemistry, Ulm University, 89069 Ulm, Germany
| | - Kiran Mathew
- Department of Materials Science and Engineering, University of Florida, Gainesville, Florida 32611, USA
| | - Richard G. Hennig
- Department of Materials Science and Engineering, University of Florida, Gainesville, Florida 32611, USA
| | - Axel Groß
- Institute of Theoretical Chemistry, Ulm University, 89069 Ulm, Germany
- Helmholtz Institute Ulm (HIU), Electrochemical Energy Storage, 89069 Ulm, Germany
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14
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Keppeler M, Roduner E. Platinum–hydrogen vibrations and low energy electronic excitations of 13-atom Pt nanoclusters. Phys Chem Chem Phys 2014; 16:26613-6. [DOI: 10.1039/c4cp02052a] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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15
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Liang Z, Yang HJ, Kim Y, Trenary M. Surface morphology of atomic nitrogen on Pt(111). J Chem Phys 2014; 140:114707. [PMID: 24655198 DOI: 10.1063/1.4868141] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The surface morphology of chemisorbed N on the Pt(111) surface has been studied at the atomic level with low temperature scanning tunneling microscopy (STM). When N is coadsorbed with O on the surface, they form a mixed (2 × 2)-N+O structure. When the surface is covered with N atoms only, isolated atoms and incomplete (2 × 2) patches are observed at low coverages. In a dense N layer, two phases, (√3 × √3)R30°-N and p(2 × 2)-N, are found to coexist at temperatures between 360 and 400 K. The (√3 × √3)R30° phase converts to the (2 × 2) phase as temperature increases. For both phases, nitrogen occupies fcc-hollow sites. At temperatures above 420 K, nitrogen starts to desorb. The p(2 × 2)-N phase shows a honeycomb structure in STM images with three nitrogen and three platinum atoms forming a six-membered ring, which can be attributed to the strong nitrogen binding to the underlying Pt surface.
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Affiliation(s)
- Zhu Liang
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607, USA
| | - Hyun Jin Yang
- Surface and Interface Science Laboratory, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan
| | - Yousoo Kim
- Surface and Interface Science Laboratory, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan
| | - Michael Trenary
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607, USA
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16
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Kerpal C, Harding DJ, Rayner DM, Fielicke A. Small Platinum Cluster Hydrides in the Gas Phase. J Phys Chem A 2013; 117:8230-7. [DOI: 10.1021/jp405120u] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Christian Kerpal
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, D-14195
Berlin, Germany
| | - Dan J. Harding
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, D-14195
Berlin, Germany
| | - David M. Rayner
- National Research Council, 100 Sussex Drive, Ottawa, Ontario, Canada K1A
OR6
| | - André Fielicke
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, D-14195
Berlin, Germany
- Institut für Optik
und
Atomare Physik, Technische Universität Berlin, Hardenbergstr. 36, D-10623 Berlin, Germany
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17
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Pereira AO, Miranda CR. First-principles calculations of H, O and OH adsorption on metallic layered supported thin films. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2013; 25:175002. [PMID: 23515274 DOI: 10.1088/0953-8984/25/17/175002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
In this work, the adsorption of hydrogen, oxygen and hydroxyl on metallic thin films is studied through first-principles calculations. We explore how the structural and electronic properties of palladium, platinum and gold thin films change with respect to the type of substrate. As a major result we find that Pd/Au(111) and Pt/Au(111) thin films present enhanced adsorption properties for H, O and OH. This improvement is a result of the induced tensile strain on the film due to the misfit between the lattice parameters of the film and the substrate. For these systems, the tensile strain results in a shift of the d-band center position towards to the Fermi level, with implications for the enhancement of adsorption properties. Our results suggest that the location of the unadsorbed d-band center for Pd/Au(111), Pt/Au(111) and Au thin films is a good parameter to predict the reactivity between these surfaces and H, O and OH. However, when considering different numbers of atomic monolayers, changes in adsorption energy are observed and there is no correlation for Pd/Au(111) and Au/Pt(111) films. For Pd/Pt(111) and Pt/Pd(111) films the difference between lattice parameters is relatively small, and no correlation is found, since no considerable strain is induced. In addition, our results support that a compressive strain will always lead to weaker adsorption. We also observe that the work function is strongly affected by adsorption. In particular, H adsorption results in an expansion of the interlayer distance between the topmost layers of the film. Furthermore, after atomic insertion, the interlayer distance of Pd/Pt(111) films is similar to the interlayer distance for bulk PdH0.6, which indicates that these thin films can act as precursor states for hydride formation.
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Affiliation(s)
- Aline O Pereira
- Universidade Federal do ABC, Rua Santa Adélia 166, 09210-170, Santo André, São Paulo, Brazil.
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18
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Han JW, James JN, Sholl DS. Chemical speciation of adsorbed glycine on metal surfaces. J Chem Phys 2011; 135:034703. [DOI: 10.1063/1.3610420] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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19
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Xu L, Ma Y, Zhang Y, Teng B, Jiang Z, Huang W. Revisiting H/Pt(111) by a combined experimental study of the H-D exchange reaction and first-principles calculations. Sci China Chem 2011. [DOI: 10.1007/s11426-011-4242-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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20
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Poelsema B, Lenz K, Comsa G. The dissociative adsorption of hydrogen on Pt(111): Actuation and acceleration by atomic defects. J Chem Phys 2011; 134:074703. [DOI: 10.1063/1.3530286] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Bene Poelsema
- Solid State Physics MESA+ Institute for Nanotechnology, University of Twente, Enschede, The Netherlands.
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21
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Rutigliano M, Cacciatore M. Eley–Rideal recombination of hydrogen atoms on a tungsten surface. Phys Chem Chem Phys 2011; 13:7475-84. [DOI: 10.1039/c0cp02514c] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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22
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Duan Z, Wang G. A first principles study of oxygen reduction reaction on a Pt(111) surface modified by a subsurface transition metal M (M = Ni, Co, or Fe). Phys Chem Chem Phys 2011; 13:20178-87. [DOI: 10.1039/c1cp21687b] [Citation(s) in RCA: 206] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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23
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Garcia-Araez N, Climent V, Feliu JM. Analysis of temperature effects on hydrogen and OH adsorption on Pt(111), Pt(100) and Pt(110) by means of Gibbs thermodynamics. J Electroanal Chem (Lausanne) 2010. [DOI: 10.1016/j.jelechem.2010.01.024] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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24
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Jardine AP, Lee EYM, Ward DJ, Alexandrowicz G, Hedgeland H, Allison W, Ellis J, Pollak E. Determination of the quantum contribution to the activated motion of hydrogen on a metal surface: H/Pt(111). PHYSICAL REVIEW LETTERS 2010; 105:136101. [PMID: 21230789 DOI: 10.1103/physrevlett.105.136101] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2010] [Indexed: 05/30/2023]
Abstract
Measurements of the atomic-scale motion of H and D atoms on the Pt(111) surface, above the crossover temperature to deep tunneling, are presented. The results indicate that quantum effects are significant up to the highest temperature studied (250 K). The motion is shown to correspond to nearest neighbor hopping diffusion on a well defined fcc (111) lattice. The measurements provide information on the adiabatic potential of both the adsorption site and the transition state and give strong empirical support for a dissipative transition-state theory description of the quantum contribution to the motion.
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Benedek G, Bernasconi M, Chis V, Chulkov E, Echenique PM, Hellsing B, Peter Toennies J. Theory of surface phonons at metal surfaces: recent advances. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2010; 22:084020. [PMID: 21389396 DOI: 10.1088/0953-8984/22/8/084020] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Recent studies of the surface dynamics of Al(001) and Cu(111) based on density functional perturbation theory have substantiated the existence of subsurface optical phonon resonances of all three polarizations, thus confirming early predictions of the embedded-atom method. The hybridization of the shear-vertical optical resonance with the longitudinal acoustic phonon branch accounts for the ubiquitous anomalous acoustic resonance as an intrinsic feature of metal surfaces. The DFPT calculation of the phonon-induced surface charge density oscillations shows that helium atom scattering spectroscopy (HAS) can indeed probe subsurface resonances. This opens new perspectives to HAS for the measurement of subsurface phonon dispersion curves in thin films, as proved by recent HAS studies on Pb and Fe ultrathin films on copper. After discussing these recent advances, this paper briefly reviews other important trends of surface dynamics expressed in recent years.
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Affiliation(s)
- G Benedek
- Dipartimento di Scienza dei Materiali, Università di Milano-Bicocca, I-20125 Milano, Italy. Donostia International Physics Center (DIPC), E-20018 Donostia/San Sebastian, Spain. Max-Planck-Institut für Dynamik und Selbstorganization, D-37073 Göttingen, Germany
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Nave S, Jackson B. Methane dissociation on Ni(111) and Pt(111): Energetic and dynamical studies. J Chem Phys 2009; 130:054701. [DOI: 10.1063/1.3065800] [Citation(s) in RCA: 115] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Mollaamin F, Baei MT, Monajjemi M, Zhiani R, Honarparvar B. A DFT study of hydrogen chemisorption on V (100) surfaces. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2008. [DOI: 10.1134/s0036024408130323] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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van der Niet MJTC, Dominicus I, Koper MTM, Juurlink LBF. Hydrophobic interactions between water and pre-adsorbed D on the stepped Pt(533) surface. Phys Chem Chem Phys 2008; 10:7169-79. [DOI: 10.1039/b809652j] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Roman T, Nakanishi H, Kasai H. Coadsorbed H and CO interaction on platinum. Phys Chem Chem Phys 2008; 10:6052-7. [DOI: 10.1039/b806186f] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Zheng CZ, Yeung CK, Loy MMT, Xiao X. Quantum diffusion of H on Pt(111): step effects. PHYSICAL REVIEW LETTERS 2006; 97:166101. [PMID: 17155414 DOI: 10.1103/physrevlett.97.166101] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2006] [Indexed: 05/12/2023]
Abstract
Using a linear optical diffraction technique, we have systematically investigated the defect effects on quantum surface diffusion of hydrogen on Pt(111) surfaces. The quantum tunneling effect was clearly observed for hydrogen diffusion at low temperatures as manifested by a leveling off of the diffusion coefficient on flat surfaces. The strong influence of surface defects on the quantum diffusion is in good agreement with the creation of an inhomogeneous surface with adsorption sites of different binding energies.
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Affiliation(s)
- C Z Zheng
- Department of Physics and Institute of Nano Science and Technology, Hong Kong University of Science & Technology, Hong Kong, China
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Jacob T, Goddard WA. Water Formation on Pt and Pt-based Alloys: A Theoretical Description of a Catalytic Reaction. Chemphyschem 2006; 7:992-1005. [PMID: 16596695 DOI: 10.1002/cphc.200500613] [Citation(s) in RCA: 100] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
In the past, the modeling of catalytic processes was limited by the size and complexity of the systems involved. However, the enormous progress in both computer power and theoretical methods has made computational modeling a valuable tool in increasing our knowledge of catalytic reactions on the atomic scale. While complex reactions can be studied by dividing the overall reaction into a series of steps calculable by quantum mechanics, the combination with methods appropriate for larger time and length scales enables the gap between these regimes to be bridged. This provides a more realistic modeling of the experimental system and allows important environmental effects such as solvation to be taken into account. In this Minireview we describe some of the main theoretical methodologies that are used to study catalytic properties and reactions on surfaces. Using these methods, we study the seemingly simple reaction of water formation out of hydrogen and oxygen on Pt and Pt/Ni alloy catalysts. To provide a more realistic description we also discuss the interesting effects determined by hydrating the system or using alloy nanoparticles rather than extended surfaces.
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Affiliation(s)
- Timo Jacob
- Fritz-Haber Institut der Max-Planck Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany.
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Liu X, Dilger H, Eichel RA, Kunstmann J, Roduner E. A Small Paramagnetic Platinum Cluster in an NaY Zeolite: Characterization and Hydrogen Adsorption and Desorption. J Phys Chem B 2006; 110:2013-23. [PMID: 16471777 DOI: 10.1021/jp0561874] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A well-defined cluster containing 12 equivalent platinum atoms was prepared by ion exchange of an NaY zeolite, followed by hydrogen reduction. It was characterized by electron paramagnetic resonance (EPR) spectroscopy, hyperfine sublevel correlation (HYSCORE), and theoretical calculations. Combing the results of the experiments with density functional calculations, the likely structure of this cluster is icosahedral Pt13Hm, possibly with a low positive charge. The adsorbed H/D on the Pt cluster surface can be exchanged reversibly at room temperature. From H/D desorption experiments, an H2 binding energy of 1.36 eV is derived, in reasonable agreement with the calculated value but clearly larger than that for a (111) Pt single-crystal surface, revealing a finite size effect. While the hydrogen-covered cluster should clearly be regarded as a molecule, it is conceivable that the cluster adopts metallic character upon hydrogen desorption. It is likely that up to m=30 H atoms bind to this cluster with 12 surface atoms, which has important implications for the determination of the dispersion of small Pt catalyst particles by hydrogen chemisorption. Calculations as well as experiments give evidence of an interesting magnetic behavior with high-spin states playing a prominent role. There are strong indications that a reservoir of EPR silent but structurally similar clusters exists which can partly be converted to EPR visible species by H/D exchange or by gas adsorption.
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Affiliation(s)
- X Liu
- Institut für Physikalische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
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Hydrogen atom quantum migration on platinum. E-JOURNAL OF SURFACE SCIENCE AND NANOTECHNOLOGY 2006. [DOI: 10.1380/ejssnt.2006.619] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Deng R, Herceg E, Trenary M. Identification and Hydrogenation of C2 on Pt(111). J Am Chem Soc 2005; 127:17628-33. [PMID: 16351092 DOI: 10.1021/ja052607r] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Reflection absorption infrared spectroscopy (RAIRS) and temperature-programmed desorption (TPD) were used to identify the molecular species formed upon the reaction of hydrogen with surface carbon that is deposited by exposing acetylene to a Pt(111) surface held at 750 K. At this temperature, the acetylene is completely dehydrogenated and all hydrogen is desorbed from the surface. Upon subsequent hydrogen exposure at 85 K followed by sequential annealing to higher temperatures, ethylidyne (CCH3), ethynyl (CCH), and methylidyne (CH) are formed. The observation of these species indicates that carbon atoms and C2 molecules exist as stable species on the surface over a wide range of temperatures. Through a combination of RAIRS intensities, hydrogen TPD peak areas, and Auger electron spectroscopy, quantitative estimates of the coverages of the various species were obtained. It was found that 79% of the acetylene-derived carbon was in the form of C2 molecules, with the remainder in the form of carbon atoms. Essentially all of the acetylene-derived carbon could be hydrogenated. In contrast, 85% of an equivalent coverage of carbon deposited by ethylene exposure at 750 K was found to be inert toward hydrogenation.
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Affiliation(s)
- Rongping Deng
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607, USA
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Nagasaka M, Kondoh H, Ohta T. Water formation reaction on Pt(111): Role of the proton transfer. J Chem Phys 2005; 122:204704. [PMID: 15945761 DOI: 10.1063/1.1854621] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The catalytic water formation reaction on Pt(111) was investigated by kinetic Monte Carlo simulations, where the interaction energy between reaction species and the high mobility of H(2)O molecule was considered. Results obtained clearly reproduce the scanning tunneling microscopy images which show that the reaction proceeds via traveling the reaction fronts on the O-covered Pt(111) surface by creating H(2)O islands backwards. The reaction front is a mixed layer of OH and H(2)O with a (square root 3 x square root 3)R30(o) structure. Coverage change during the reaction is also reproduced in which the reaction consists of three characteristic processes, as observed by the previous experiments. The simulation also revealed that the proton transfer from H(2)O to OH plays an important role to propagate the water formation.
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Affiliation(s)
- Masanari Nagasaka
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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Greeley J, Mavrikakis M. Surface and Subsurface Hydrogen: Adsorption Properties on Transition Metals and Near-Surface Alloys. J Phys Chem B 2005; 109:3460-71. [PMID: 16851380 DOI: 10.1021/jp046540q] [Citation(s) in RCA: 185] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Periodic, self-consistent DFT-GGA calculations are used to study the thermochemical properties of both surface and subsurface atomic hydrogen on a variety of pure metals and near-surface alloys (NSAs). For surface hydrogen on pure metals, calculated site preferences, adsorption geometries, vibrational frequencies, and binding energies are reported and are found to be in good agreement with available experimental data. On NSAs, defined as alloys wherein a solute is present near the surface of a host metal in a composition different from the bulk composition, surface hydrogen generally binds more weakly than it binds to the pure-metal components composing the alloys. Some of the NSAs even possess the unusual property of binding hydrogen as weakly as the noble metals while, at the same time, dissociating H(2) much more easily. On both NSAs and pure metals, formation of surface hydrogen is generally exothermic with respect to H(2)(g). In contrast, formation of subsurface hydrogen is typically endothermic with respect to gas-phase H(2) (the only exception to this general statement is found for pure Pd). As with surface H, subsurface H typically binds more weakly to NSAs than to the corresponding pure-metal components of the alloys. The diffusion barrier for hydrogen from surface to subsurface sites, however, is usually lower on NSAs compared to the pure-metal components, suggesting that population of subsurface sites may occur more rapidly on NSAs.
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Affiliation(s)
- Jeff Greeley
- Department of Chemical and Biological Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
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Olsen RA, Bădescu SC, Ying SC, Baerends EJ. Adsorption and diffusion on a stepped surface: Atomic hydrogen on Pt(211). J Chem Phys 2004; 120:11852-63. [PMID: 15268219 DOI: 10.1063/1.1755664] [Citation(s) in RCA: 58] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
We present density functional theory calculations for atomic hydrogen interacting with a stepped surface, the Pt(211) surface. The calculations have been performed at the generalized gradient approximation level, using a slab representation of the surface. This is the state-of-the-art method for calculating the interaction of atoms or molecules with metal surfaces, nevertheless only few studies have used it to study atoms or molecules interacting with stepped surfaces, and none, to the best of our knowledge, have considered hydrogen interacting with stepped platinum surfaces. Our goal has been to initiate a systematic study of this topic. We have calculated the full three-dimensional potential energy surface (PES) for the H/Pt(211) system together with the vibrational band structure and vibrational eigenfunctions of H. A deep global minimum of the PES is found for bridge-bonded hydrogen on the step edge, in agreement with experimental results for the similar H/Pt(533) system. All the local vibrational excitations at the global minimum have been identified, and this will serve as a helpful guide to the interpretation of future experiments on this (or similar) system(s). Furthermore, from the calculated PES and vibrational band structure, we identify a number of consequences for the interpretation or modelling of diffusion experiments studying the coverage and directional dependence of atomic hydrogen diffusion on stepped platinum surfaces.
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Affiliation(s)
- R A Olsen
- Theoretische Chemie, Vrije Universiteit, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
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Sundell PG, Wahnström G. Activation energies for quantum diffusion of hydrogen in metals and on metal surfaces using delocalized nuclei within the density-functional theory. PHYSICAL REVIEW LETTERS 2004; 92:155901. [PMID: 15169299 DOI: 10.1103/physrevlett.92.155901] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2003] [Indexed: 05/24/2023]
Abstract
Hydrogen diffusion on the Cu(001) surface and in bulk Nb and Ta is studied in the quantum regime using first-principles electronic-structure calculations. We present, for the first time, a direct density-functional calculation of the activation energy required to establish the quantum-mechanically delocalized hydrogen coincidence configuration and of the corresponding tunneling matrix element. For the two bulk systems a direct comparison can be made with nuclear magnetic resonance data, and we find excellent agreement for both the coincidence energy and the tunneling matrix element.
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Affiliation(s)
- Per G Sundell
- Department of Applied Physics, Chalmers University of Technology and Göteborg University, SE-412 96 Göteborg, Sweden.
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Gustafsson K, Andersson S. Infrared spectroscopy of oxygen adsorbed on hydrogen covered Pt(111). J Chem Phys 2004; 121:8532-6. [PMID: 15511177 DOI: 10.1063/1.1802273] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Using infrared reflection absorption spectroscopy we have investigated how preadsorbed hydrogen affects the adsorption of O(2) on the Pt(111) surface at temperatures below the onset of the water formation reaction. On the fully hydrogen covered surface, Theta(H)=1, O(2) physisorbs at temperatures below 45 K, the weakly dipole active internal stretch vibration is observed at 1548 cm(-1). Unlike on the clean Pt(111) surface, this adsorption state does not act as a precursor for O(2) chemisorption. The physisorbed molecules simply desorb above 45 K and no chemisorbed O(2) state is populated directly from the gas phase in the temperature range 45-90 K. When the surface is approximately half covered, Theta(H) approximately 0.4, with preadsorbed hydrogen, O(2) chemisorbs on the clean Pt(111) surface regions in the characteristic peroxolike and superoxolike states with vibration frequencies around 700 cm(-1) and 870 cm(-1). These values correspond to dense O(2) islands which develop already at low O(2) coverages. At this hydrogen coverage, we find that the initial sticking probability of chemisorbed O(2) is drastically reduced at 90 K and the general uptake also proceeds slowly when compared with observations for the clean surface. We suggest that this is due to a change in the behavior of the physisorbed O(2) precursor.
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Affiliation(s)
- K Gustafsson
- Department of Physics, Chalmers University of Technology and Göteborg University, Göteborg SE-412 96, Sweden
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