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Lisitsyn AS, Kadtsyna AS. Strong response of Pt clusters to the environment and conditions, formation of metastable states, and simple methods to trace the reversible changes. Phys Chem Chem Phys 2021; 23:22718-22732. [PMID: 34605497 DOI: 10.1039/d1cp01484f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Subnanometric metal particles, the so-called "clusters", are known to be responsive to their surroundings, but the detection of occurring changes, understanding the causes, and predicting the consequences are still extremely difficult for such small particles. Our study was aimed at estimating the potential of adsorption-based methods for these purposes. Using carbon monoxide as a probing molecule, which readily adsorbs on both bare and H-covered Pt surface, we have probed the adsorption properties of highly dispersed Pt/γ-Al2O3 samples after treatments under different atmospheres and temperatures (H2 or inert gas, 25-500 °C). The combined results of CO-chemisorption measurements, CO TPD, CO TPO, H2-by-CO displacement, and H2 TPD suggest that the system shuttles between two states: one with oxygen vacancies in the support and the other one with redox-active oxygen near the Pt clusters. These extreme states can be reversibly created and deleted, giving rise to innumerable intermediate structures that differ in the amount, binding strength, and/or reactivity of adsorbed species. Two adsorbates could act cooperatively, resulting in hydrogen spillover onto the support and making the adsorbate-metal-support interactions even more complex. Implications for better understanding the dynamic behavior of oxide-supported clusters and nanoparticles are discussed.
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2
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Redina EA, Vikanova KV, Kapustin GI, Mishin IV, Tkachenko OP, Kustov LM. Selective Room-Temperature Hydrogenation of Carbonyl Compounds under Atmospheric Pressure over Platinum Nanoparticles Supported on Ceria-Zirconia Mixed Oxide. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900215] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Elena A. Redina
- Laboratory of Development and Study of Polyfunctional Catalysts; Zelinsky Institute of Organic Chemistry RAS; 119991, Leninsky pr. 47 Moscow Russian Federation
| | - Kseniia V. Vikanova
- Laboratory of Development and Study of Polyfunctional Catalysts; Zelinsky Institute of Organic Chemistry RAS; 119991, Leninsky pr. 47 Moscow Russian Federation
| | - Gennady I. Kapustin
- Laboratory of Development and Study of Polyfunctional Catalysts; Zelinsky Institute of Organic Chemistry RAS; 119991, Leninsky pr. 47 Moscow Russian Federation
| | - Igor V. Mishin
- Laboratory of Development and Study of Polyfunctional Catalysts; Zelinsky Institute of Organic Chemistry RAS; 119991, Leninsky pr. 47 Moscow Russian Federation
| | - Olga P. Tkachenko
- Laboratory of Development and Study of Polyfunctional Catalysts; Zelinsky Institute of Organic Chemistry RAS; 119991, Leninsky pr. 47 Moscow Russian Federation
| | - Leonid M. Kustov
- Laboratory of Development and Study of Polyfunctional Catalysts; Zelinsky Institute of Organic Chemistry RAS; 119991, Leninsky pr. 47 Moscow Russian Federation
- Chemistry Department; Lomonosov Moscow State University; 119991, Leninskie gory 1 Moscow Russian Federation
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Sahoo SK, Nair NN. CPMD/GULP QM/MM interface for modeling periodic solids: Implementation and its application in the study of Y-zeolite supported Rhn clusters. J Comput Chem 2016; 37:1657-67. [PMID: 27092962 DOI: 10.1002/jcc.24379] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2015] [Revised: 02/29/2016] [Accepted: 03/14/2016] [Indexed: 11/11/2022]
Abstract
We report here the development of hybrid quantum mechanics/molecular mechanics (QM/MM) interface between the plane-wave density functional theory based CPMD code and the empirical force-field based GULP code for modeling periodic solids and surfaces. The hybrid QM/MM interface is based on the electrostatic coupling between QM and MM regions. The interface is designed for carrying out full relaxation of all the QM and MM atoms during geometry optimizations and molecular dynamics simulations, including the boundary atoms. Both Born-Oppenheimer and Car-Parrinello molecular dynamics schemes are enabled for the QM part during the QM/MM calculations. This interface has the advantage of parallelization of both the programs such that the QM and MM force evaluations can be carried out in parallel to model large systems. The interface program is first validated for total energy conservation and parallel scaling performance is benchmarked. Oxygen vacancy in α-cristobalite is then studied in detail and the results are compared with a fully QM calculation and experimental data. Subsequently, we use our implementation to investigate the structure of rhodium cluster (Rhn ; n = 2 to 6) formed from Rh(C2 H4 )2 complex adsorbed within a cavity of Y-zeolite in a reducible atmosphere of H2 gas. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Sudhir K Sahoo
- Department of Chemistry, Indian Institute of Technology, Kanpur, 208016, India
| | - Nisanth N Nair
- Department of Chemistry, Indian Institute of Technology, Kanpur, 208016, India
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Andersen M, Medford AJ, Nørskov JK, Reuter K. Analyzing the Case for Bifunctional Catalysis. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201601049] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Mie Andersen
- Chair for Theoretical Chemistry and Catalysis Research Center; Technische Universität München; Lichtenbergstrasse 4 85747 Garching Deutschland
| | - Andrew J. Medford
- SUNCAT Center for Interface Science and Catalysis, Department of Chemical Engineering; Stanford University; Stanford CA 94305 USA
- SUNCAT Center for Interface Science and Catalysis; SLAC National Accelerator Laboratory; 2575 Sand Hill Road Menlo Park CA 94025 USA
| | - Jens K. Nørskov
- SUNCAT Center for Interface Science and Catalysis, Department of Chemical Engineering; Stanford University; Stanford CA 94305 USA
- SUNCAT Center for Interface Science and Catalysis; SLAC National Accelerator Laboratory; 2575 Sand Hill Road Menlo Park CA 94025 USA
| | - Karsten Reuter
- Chair for Theoretical Chemistry and Catalysis Research Center; Technische Universität München; Lichtenbergstrasse 4 85747 Garching Deutschland
- SUNCAT Center for Interface Science and Catalysis, Department of Chemical Engineering; Stanford University; Stanford CA 94305 USA
- SUNCAT Center for Interface Science and Catalysis; SLAC National Accelerator Laboratory; 2575 Sand Hill Road Menlo Park CA 94025 USA
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5
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Andersen M, Medford AJ, Nørskov JK, Reuter K. Analyzing the Case for Bifunctional Catalysis. Angew Chem Int Ed Engl 2016; 55:5210-4. [PMID: 27005967 DOI: 10.1002/anie.201601049] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Indexed: 11/10/2022]
Abstract
Bifunctional coupling of two different catalytic site types has often been invoked to explain experimentally observed enhanced catalytic activities. We scrutinize such claims with generic scaling-relation-based microkinetic models that allow exploration of the theoretical limits for such a bifunctional gain for several model reactions. For sites at transition-metal surfaces, the universality of the scaling relations between adsorption energies largely prevents any improvements through bifunctionality. Only the consideration of systems that involve the combination of different materials, such as metal particles on oxide supports, offers hope for significant bifunctional gains.
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Affiliation(s)
- Mie Andersen
- Chair for Theoretical Chemistry and Catalysis Research Center, Technische Universität München, Lichtenbergstrasse 4, 85747, Garching, Deutschland
| | - Andrew J Medford
- SUNCAT Center for Interface Science and Catalysis, Department of Chemical Engineering, Stanford University, Stanford, CA, 94305, USA.,SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA, 94025, USA
| | - Jens K Nørskov
- SUNCAT Center for Interface Science and Catalysis, Department of Chemical Engineering, Stanford University, Stanford, CA, 94305, USA.,SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA, 94025, USA
| | - Karsten Reuter
- Chair for Theoretical Chemistry and Catalysis Research Center, Technische Universität München, Lichtenbergstrasse 4, 85747, Garching, Deutschland. .,SUNCAT Center for Interface Science and Catalysis, Department of Chemical Engineering, Stanford University, Stanford, CA, 94305, USA. .,SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA, 94025, USA.
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Coupry DE, Butson J, Petkov PS, Saunders M, O'Donnell K, Kim H, Buckley C, Addicoat M, Heine T, Szilágyi PÁ. Controlling embedment and surface chemistry of nanoclusters in metal–organic frameworks. Chem Commun (Camb) 2016; 52:5175-8. [DOI: 10.1039/c6cc00659k] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
A combined theoretical and experimental approach demonstrates that nanocluster embedment into the pores of metal–organic frameworks (MOF) may be influenced by the chemical functionalisation of the MOF.
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Affiliation(s)
- D. E. Coupry
- Department of Physics and Earth Sciences
- Jacobs University Bremen
- 28759 Bremen
- Germany
| | - J. Butson
- Department of Physics
- Astronomy and Medical Radiation Sciences
- Curtin University
- Perth
- Australia
| | - P. S. Petkov
- Department of Physics and Earth Sciences
- Jacobs University Bremen
- 28759 Bremen
- Germany
| | - M. Saunders
- Centre for Microscopy
- Characterisation and Analysis
- Perth
- Australia
| | - K. O'Donnell
- Department of Physics
- Astronomy and Medical Radiation Sciences
- Curtin University
- Perth
- Australia
| | - H. Kim
- National Institute of Advanced Industrial Science and Technology
- Tsukuba
- Japan
| | - C. Buckley
- Department of Physics
- Astronomy and Medical Radiation Sciences
- Curtin University
- Perth
- Australia
| | - M. Addicoat
- Department of Physics and Earth Sciences
- Jacobs University Bremen
- 28759 Bremen
- Germany
| | - T. Heine
- Department of Physics and Earth Sciences
- Jacobs University Bremen
- 28759 Bremen
- Germany
- Wilhelm-Ostwald-Institut für Physikalische und Theoretische Chemie
| | - P. Á. Szilágyi
- Department of Physics
- Astronomy and Medical Radiation Sciences
- Curtin University
- Perth
- Australia
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Konda SSM, Caratzoulas S, Vlachos DG. Computational Insights into the Role of Metal and Acid Sites in Bifunctional Metal/Zeolite Catalysts: A Case Study of Acetone Hydrogenation to 2-Propanol and Subsequent Dehydration to Propene. ACS Catal 2015. [DOI: 10.1021/acscatal.5b01686] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sai Sriharsha M. Konda
- Catalysis
Center for Energy
Innovation and Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, Delaware 19716, United States
| | - Stavros Caratzoulas
- Catalysis
Center for Energy
Innovation and Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, Delaware 19716, United States
| | - Dionisios G. Vlachos
- Catalysis
Center for Energy
Innovation and Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, Delaware 19716, United States
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Nasluzov VA, Parker SM, Genest A, Shor AM, Ivanova-Shor EA, Rösch N. Trinuclear tantalum clusters grafted to hydroxylated silica surfaces: A density-functional embedded-cluster study. KINETICS AND CATALYSIS 2015. [DOI: 10.1134/s0023158415050134] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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9
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Computational investigation on the catalytic activity of Rh6 and Rh4Ru2 clusters towards methanol activation. Theor Chem Acc 2014. [DOI: 10.1007/s00214-014-1597-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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10
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Identification and Characterization of Surface Hydroxyl Groups by Infrared Spectroscopy. ADVANCES IN CATALYSIS 2014. [DOI: 10.1016/b978-0-12-800127-1.00002-3] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Inerbaev T, Hoefelmeyer JD, Kilin DS. Photoinduced Charge Transfer from Titania to Surface Doping Site. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2013; 117:9673-9692. [PMID: 23795229 PMCID: PMC3688295 DOI: 10.1021/jp311076w] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
We evaluate a theoretical model in which Ru is substituting for Ti at the (100) surface of anatase TiO2. Charge transfer from the photo-excited TiO2 substrate to the catalytic site triggers the photo-catalytic event (such as water oxidation or reduction half-reaction). We perform ab-initio computational modeling of the charge transfer dynamics on the interface of TiO2 nanorod and catalytic site. A slab of TiO2 represents a fragment of TiO2 nanorod in the anatase phase. Titanium to ruthenium replacement is performed in a way to match the symmetry of TiO2 substrate. One molecular layer of adsorbed water is taken into consideration to mimic the experimental conditions. It is found that these adsorbed water molecules saturate dangling surface bonds and drastically affect the electronic properties of systems investigated. The modeling is performed by reduced density matrix method in the basis of Kohn-Sham orbitals. A nano-catalyst modeled through replacement defect contributes energy levels near the bottom of the conduction band of TiO2 nano-structure. An exciton in the nano-rod is dissipating due to interaction with lattice vibrations, treated through non-adiabatic coupling. The electron relaxes to conduction band edge and then to the Ru cite with faster rate than hole relaxes to the Ru cite. These results are of the importance for an optimal design of nano-materials for photo-catalytic water splitting and solar energy harvesting.
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Affiliation(s)
- Talgat Inerbaev
- Gumilyov Eurasian National University Astana, Munaitpasov st. 5, 010008, Kazakhstan
| | - James D. Hoefelmeyer
- Department of Chemistry, University of South Dakota, 414 E. Clark St., Vermillion, SD 57069
| | - Dmitri S. Kilin
- Department of Chemistry, University of South Dakota, 414 E. Clark St., Vermillion, SD 57069
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12
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Santana JA, Rösch N. Hydrogen adsorption on and spillover from Au- and Cu-supported Pt3 and Pd3 clusters: a density functional study. Phys Chem Chem Phys 2012; 14:16062-9. [DOI: 10.1039/c2cp43080k] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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