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Lai KC, Campbell CT, Evans JW. Size-dependent diffusion of supported metal nanoclusters: mean-field-type treatments and beyond for faceted clusters. Nanoscale Horiz 2023; 8:1556-1567. [PMID: 37574918 DOI: 10.1039/d3nh00140g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/15/2023]
Abstract
Nanostructured systems are intrinsically metastable and subject to coarsening. For supported 3D metal nanoclusters (NCs), coarsening can involve NC diffusion across the support and subsequent coalescence (as an alternative to Ostwald ripening). When used as catalysts, this leads to deactivation. The dependence of diffusivity, DN, on NC size, N (in atoms), controls coarsening kinetics. Traditional mean-field (MF) theory for DNversus N assumes that NC diffusion is mediated by independent random hopping of surface adatoms with low coordination, and predicts that DN ∼ hN-4/3neq. Here, h = ν exp[-Ed/(kBT)] denotes the hop rate, and neq = exp[-Eform/(kBT)] the density of those adatoms. The adatom formation energy, Eform, approaches a finite large-N limit, as does the effective barrier, Eeff = Ed + Eform, for NC diffusion. This MF theory is critically assessed for a realistic stochastic atomistic model for diffusion of faceted fcc metal NCs with a {100} facet epitaxially attached to a (100) support surface. First, the MF formulation is refined to account for distinct densities and hop rates for surface adatoms on different facets and along the base contact line, and to incorporate the exact values of Eform and neqversus N for our model. MF theory then captures the occurrence of local minima in DNversus N at closed-shell sizes, as shown by KMC simulation. However, the MF treatment also displays fundamental shortcomings due to the feature that diffusion of faceted NCs is actually dominated by a cooperative multi-step process involving disassembling and reforming of outer layers on side facets. This mechanism leads to an Eeff which is well above MF values, and which increases with N, features captured by a beyond-MF treatment.
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Affiliation(s)
- King C Lai
- Division of Chemical & Biological Sciences, Ames National Laboratory - USDOE, Ames, Iowa 50011, USA.
- Department of Physics & Astronomy, Iowa State University, Ames, Iowa 50011, USA
| | - Charles T Campbell
- Chemistry Department, University of Washington, Seattle, Washington 98195, USA
| | - James W Evans
- Division of Chemical & Biological Sciences, Ames National Laboratory - USDOE, Ames, Iowa 50011, USA.
- Department of Physics & Astronomy, Iowa State University, Ames, Iowa 50011, USA
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Zhao K, Janulaitis N, Rumptz JR, Campbell CT. Size-Dependent Energy and Adhesion of Pd Nanoparticles on Graphene on Ni(111) by Pd Vapor Adsorption Calorimetry. ACS Catal 2023. [DOI: 10.1021/acscatal.2c06343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Affiliation(s)
- Kun Zhao
- Department of Chemistry, University of Washington, Seattle, Washington98105-1700, United States
- Advanced Institute for Materials Research, Tohoku University, Sendai, Miyagi980-8577, Japan
| | - Nida Janulaitis
- Department of Chemical Engineering, University of Washington, Seattle, Washington98105-1700, United States
| | - John R. Rumptz
- Department of Chemical Engineering, University of Washington, Seattle, Washington98105-1700, United States
| | - Charles T. Campbell
- Department of Chemistry, University of Washington, Seattle, Washington98105-1700, United States
- Department of Chemical Engineering, University of Washington, Seattle, Washington98105-1700, United States
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3
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Plessow PN, Campbell CT. Correction to “Influence of Adhesion on the Chemical Potential of Supported Nanoparticles as Modeled with Spherical Caps”. ACS Catal 2022. [DOI: 10.1021/acscatal.2c05480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Rumptz JR, Zhao K, Mayo J, Campbell CT. Size-Dependent Energy of Ni Nanoparticles on Graphene Films on Ni(111) and Adhesion Energetics by Adsorption Calorimetry. ACS Catal 2022. [DOI: 10.1021/acscatal.2c02765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- John R. Rumptz
- Department of Chemical Engineering, and University of Washington, Seattle, Washington 98105-1700, United States
| | - Kun Zhao
- Department of Chemistry, and University of Washington, Seattle, Washington 98105-1700, United States
| | - Jackson Mayo
- Department of Chemistry, and University of Washington, Seattle, Washington 98105-1700, United States
| | - Charles T. Campbell
- Department of Chemical Engineering, and University of Washington, Seattle, Washington 98105-1700, United States
- Department of Chemistry, and University of Washington, Seattle, Washington 98105-1700, United States
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Ruehl G, Harman SE, Gluth OM, LaVoy DH, Campbell CT. Energetics of Adsorbed Formate and Formic Acid on Cu(111) by Calorimetry. ACS Catal 2022. [DOI: 10.1021/acscatal.2c02608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Rumptz JR, Mao Z, Campbell CT. Size-Dependent Adsorption and Adhesion Energetics of Ag Nanoparticles on Graphene Films on Ni(111) by Calorimetry. ACS Catal 2022. [DOI: 10.1021/acscatal.1c05589] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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Affiliation(s)
- Philipp N. Plessow
- Institute of Catalysis Research and Technology, Karlsruhe Institute of Technology, Hermann-von-Helmholtz Platz 1, Eggenstein-Leopoldshafen 76344, Germany
| | - Charles T. Campbell
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
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Affiliation(s)
| | | | - Líney Árnadóttir
- School of Chemical, Biological, and Environmental Engineering, Oregon State University, Corvallis, Oregon 97331-2702, United States
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Mao Z, Campbell CT. Correction to “Predicting a Key Catalyst-Performance Descriptor for Supported Metal Nanoparticles: Metal Chemical Potential”. ACS Catal 2021. [DOI: 10.1021/acscatal.1c04664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zhongtian Mao
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Charles T. Campbell
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
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Lustemberg PG, Mao Z, Salcedo A, Irigoyen B, Ganduglia-Pirovano MV, Campbell CT. Nature of the Active Sites on Ni/CeO 2 Catalysts for Methane Conversions. ACS Catal 2021; 11:10604-10613. [PMID: 34484854 PMCID: PMC8411779 DOI: 10.1021/acscatal.1c02154] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 07/23/2021] [Indexed: 11/30/2022]
Abstract
![]()
Effective
catalysts for the direct conversion of methane to methanol
and for methane’s dry reforming to syngas are Holy Grails of
catalysis research toward clean energy technologies. It has recently
been discovered that Ni at low loadings on CeO2(111) is
very active for both of these reactions. Revealing the nature of the
active sites in such systems is paramount to a rational design of
improved catalysts. Here, we correlate experimental measurements on
the CeO2(111) surface to show that the most active sites
are cationic Ni atoms in clusters at step edges, with a small size
wherein they have the highest Ni chemical potential. We clarify the
reasons for this observation using density functional theory calculations.
Focusing on the activation barrier for C–H bond cleavage during
the dissociative adsorption of CH4 as an example, we show
that the size and morphology of the supported Ni nanoparticles together
with strong Ni-support bonding and charge transfer at the step edge
are key to the high catalytic activity. We anticipate that this knowledge
will inspire the development of more efficient catalysts for these
reactions.
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Affiliation(s)
- Pablo G. Lustemberg
- Instituto de Catálisis y Petroleoquímica (ICP-CSIC), 28049 Madrid, Spain
- Instituto de Física Rosario (IFIR-CONICET) and Universidad Nacional de Rosario (UNR), S2000EKF Rosario, Santa Fe, Argentina
| | - Zhongtian Mao
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Agustín Salcedo
- Departamento de Ingeniería Química, Facultad de Ingeniería, Universidad de Buenos Aires (UBA), Ciudad Universitaria, C1428EGA Buenos Aires, Argentina
- Instituto de Tecnologías del Hidrógeno y Energías Sostenibles (ITHES, CONICET-UBA), Ciudad Universitaria, C1428EGA Buenos Aires, Argentina
| | - Beatriz Irigoyen
- Departamento de Ingeniería Química, Facultad de Ingeniería, Universidad de Buenos Aires (UBA), Ciudad Universitaria, C1428EGA Buenos Aires, Argentina
- Instituto de Tecnologías del Hidrógeno y Energías Sostenibles (ITHES, CONICET-UBA), Ciudad Universitaria, C1428EGA Buenos Aires, Argentina
| | | | - Charles T. Campbell
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
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Affiliation(s)
- Zhongtian Mao
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Charles T. Campbell
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
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Xia Y, Campbell CT, Roldan Cuenya B, Mavrikakis M. Introduction: Advanced Materials and Methods for Catalysis and Electrocatalysis by Transition Metals. Chem Rev 2021; 121:563-566. [PMID: 33499607 DOI: 10.1021/acs.chemrev.0c01269] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Younan Xia
- The Wallace H. Coulter Department of Biomedical Engineering, School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Charles T Campbell
- Department of Chemistry, University of Washington, Seattle, Washington 98195, United States
| | - Beatriz Roldan Cuenya
- Department of Interface Science, Fritz-Haber Institute of the Max-Planck Society, 14195 Berlin, Germany
| | - Manos Mavrikakis
- Department of Chemical and Biological Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
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14
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Zhang W, Uppuluri R, Mallouk TE, Campbell CT. Silver Adsorption on Calcium Niobate(001) Nanosheets: Calorimetric Energies That Explain Sinter-Resistant Support. J Am Chem Soc 2020; 142:15751-15763. [PMID: 32794402 DOI: 10.1021/jacs.0c05044] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Metal nanoparticles deposited on oxide supports are essential to many technologies, including catalysts, fuel cells, and electronics. Therefore, understanding the chemical bonding strength between metal nanoparticles and oxide surfaces is of great interest. The adsorption energetics, adhesion energy, and adsorbate structure of Ag on dehydrated HCa2Nb3O10(001) nanosheets at 300 K have been studied using metal adsorption calorimetry and surface spectroscopies. These dehydrated ("dh") calcium niobate nanosheets (dh-HCa2Nb3O10(001)) have the stoichiometry Ca4Nb6O19. They impart unusual stability to metal nanoparticles when used as catalyst supports and are easy-to-prepare by Langmuir-Blodgett (LB) techniques, highly ordered, and essentially single-crystal surfaces of mixed oxides with a huge ratio of terrace to edge sites. Below the monolayer coverage, Ag grows on dh-HCa2Nb3O10(001) as 2D islands of thickness ∼2 layers. The differential heat of Ag adsorption is initially ∼303 kJ/mol, increasing slowly to ∼338 kJ/mol by 0.8 ML. At higher coverages, Ag atoms mainly add on top of these 2D islands, growing 3D nanoparticles of increasing thickness, as the heat decreases asymptotically toward silver's heat of sublimation (285 kJ/mol). The adhesion energy of Ag(s) to this Ca niobate surface is estimated to be 4.33 J/m2, larger than that on any oxide surface previously measured. This explains the sinter resistance reported for metal nanoparticles on this support. Electron transfer from Ag into the calcium niobate is also measured. These results demonstrate an easy way to do single-crystal-type surface science studies-and especially thermochemical measurements-on the complex surfaces of mixed oxides: using LB-deposited perovskite nanosheets and ultrahigh-vacuum annealing in O2.
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Affiliation(s)
- Wei Zhang
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Ritesh Uppuluri
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Thomas E Mallouk
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, United States.,Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States.,International Centre for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Charles T Campbell
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
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Affiliation(s)
- Charles T Campbell
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, USA
| | - Núria López
- Institute of Chemical Research of Catalonia, ICIQ, The Barcelona Institute of Science and Technology, BIST, Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Stefan Vajda
- Department of Nanocatalysis, J. Heyrovský Institute of Physical Chemistry, Czech Academy of Sciences, Dolejškova 3, 18223 Prague 8, Czech Republic
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Mao Z, Lustemberg PG, Rumptz JR, Ganduglia-Pirovano MV, Campbell CT. Ni Nanoparticles on CeO2(111): Energetics, Electron Transfer, and Structure by Ni Adsorption Calorimetry, Spectroscopies, and Density Functional Theory. ACS Catal 2020. [DOI: 10.1021/acscatal.0c00333] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Zhongtian Mao
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Pablo G. Lustemberg
- Instituto de Fı́sica Rosario (IFIR-CONICET) and Universidad Nacional de Rosario (UNR), Ocampo y Esmeralda, S2000EKF Rosario, Santa Fe, Argentina
- Instituto de Catálisis y Petroleoquı́mica (ICP-CSIC), C/Marie Curie 2, 28049 Madrid, Spain
| | - John R. Rumptz
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | | | - Charles T. Campbell
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
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Affiliation(s)
- Zhongtian Mao
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Charles T. Campbell
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
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Singh N, Sanyal U, Ruehl G, Stoerzinger KA, Gutiérrez OY, Camaioni DM, Fulton JL, Lercher JA, Campbell CT. Aqueous phase catalytic and electrocatalytic hydrogenation of phenol and benzaldehyde over platinum group metals. J Catal 2020. [DOI: 10.1016/j.jcat.2019.12.034] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Park GB, Kitsopoulos TN, Borodin D, Golibrzuch K, Neugebohren J, Auerbach DJ, Campbell CT, Wodtke AM. The kinetics of elementary thermal reactions in heterogeneous catalysis. Nat Rev Chem 2019. [DOI: 10.1038/s41570-019-0138-7] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Affiliation(s)
- Zhongtian Mao
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Charles T. Campbell
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
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Singh N, Campbell CT. A Simple Bond-Additivity Model Explains Large Decreases in Heats of Adsorption in Solvents Versus Gas Phase: A Case Study with Phenol on Pt(111) in Water. ACS Catal 2019. [DOI: 10.1021/acscatal.9b01870] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Nirala Singh
- Department of Chemical Engineering, University of Michigan, Ann Arbor, Michigan 48109-2136, United States
- Catalysis Science and Technology Institute, University of Michigan, Ann Arbor, Michigan 48109-2136, United States
| | - Charles T. Campbell
- Department of Chemistry, University of Washington, Seattle, Washington 98105-1700, United States
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Singh N, Sanyal U, Fulton JL, Gutiérrez OY, Lercher JA, Campbell CT. Quantifying Adsorption of Organic Molecules on Platinum in Aqueous Phase by Hydrogen Site Blocking and in Situ X-ray Absorption Spectroscopy. ACS Catal 2019. [DOI: 10.1021/acscatal.9b01415] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Nirala Singh
- Department of Chemistry, University of Washington, Seattle, Washington 98105-1700, United States
- Institute for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Udishnu Sanyal
- Institute for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - John L. Fulton
- Institute for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Oliver Y. Gutiérrez
- Institute for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Johannes A. Lercher
- Institute for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
- Department of Chemistry and Catalysis Research Center, Technische Universität München, Lichtenbergstrasse 4, 85748 Garching, Germany
| | - Charles T. Campbell
- Department of Chemistry, University of Washington, Seattle, Washington 98105-1700, United States
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Abstract
Better catalysts and electrocatalysts are essential for the production and use of clean fuels with less pollution and improved energy efficiency, for making chemicals with less energy and environmental impact, for pollution abatement, and for many other future technologies needed to achieve environmentally friendlier energy supply and chemicals industry. Crucial for rational design of better catalyst and electrocatalyst materials is knowledge of the energies of elementary chemical reactions on late transition metal surfaces. This knowledge would also aid in designing more efficient and stable photocatalysts and batteries for harvesting and storing solar energy. These are all crucial for sustainable living with high quality. Herein, I review measurements of surface reaction energies involving many of the most common adsorbates formed as intermediates on late transition metal surfaces in catalytic and electrocatalytic reactions of interest for energy and environmental technologies. I focus on calorimetric measurements of the heat of molecular and dissociative adsorption of gases on single crystals (i.e., single crystal adsorption calorimetry, or SCAC) that allow the heats of formation of adsorbed intermediates in well-defined structures to be directly determined. Adsorption reactions are often irreversible, and in such cases SCAC is required to get these heats, since the other methods for measuring adsorption energies (equilibrium adsorption isotherms and temperature-programmed desorption) work only for reversible adsorption. Common examples of irreversible adsorption reactions are ones that produce adsorbed molecular fragments or adsorbed molecules such as olefins and aromatic molecules that bind very strongly to non-noble metals. When the heats of formation of different adsorbed molecular fragments are compared to each other, and to their values on different metal surfaces, they reveal which properties of the metal surface and the molecular fragments determine metal-adsorbate bond strengths, and clarify differences in catalytic reactivity between different metals. When combined with earlier adsorption energy measurements, these heats also provide a database of reliable energies of adsorbed catalytic intermediates that serve as crucial benchmarks to guide the development of improved computational methods for calculating the energetics of elementary steps on late transition metal surfaces (i.e., reaction energies and activation barriers), such as density functional theory. The energy accuracy of such computational estimates is crucial for the future of catalysis research and catalyst discovery.
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Affiliation(s)
- Charles T. Campbell
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
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Zhou L, Kandratsenka A, Campbell CT, Wodtke AM, Guo H. Origin of Thermal and Hyperthermal CO 2 from CO Oxidation on Pt Surfaces: The Role of Post-Transition-State Dynamics, Active Sites, and Chemisorbed CO 2. Angew Chem Int Ed Engl 2019; 58:6916-6920. [PMID: 30861588 DOI: 10.1002/anie.201900565] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Indexed: 11/08/2022]
Abstract
The post-transition-state dynamics in CO oxidation on Pt surfaces are investigated using DFT-based ab initio molecular dynamics simulations. While the initial CO2 formed on a terrace site on Pt(111) desorbs directly, it is temporarily trapped in a chemisorption well on a Pt(332) step site. These two reaction channels thus produce CO2 with hyperthermal and thermal velocities with drastically different angular distributions, in agreement with recent experiments (Nature, 2018, 558, 280-283). The chemisorbed CO2 is formed by electron transfer from the metal to the adsorbate, resulting in a bent geometry. While chemisorbed CO2 on Pt(111) is unstable, it is stable by 0.2 eV on a Pt(332) step site. This helps explain why newly formed CO2 produced at step sites desorbs with far lower translational energies than those formed at terraces. This work shows that steps and other defects could be potentially important in finding optimal conditions for the chemical activation and dissociation of CO2 .
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Affiliation(s)
- Linsen Zhou
- Department of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, NM, 87131, USA
| | - Alexander Kandratsenka
- Department of Dynamics at Surfaces, Max Planck Institute for Biophysical Chemistry, 37077, Göttingen, Germany
| | - Charles T Campbell
- Department of Chemistry, University of Washington, Seattle, WA, 98195-1700, USA
| | - Alec M Wodtke
- Department of Dynamics at Surfaces, Max Planck Institute for Biophysical Chemistry, 37077, Göttingen, Germany.,Institute for Physical Chemistry, University of Göttingen, 37077, Göttingen, Germany
| | - Hua Guo
- Department of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, NM, 87131, USA
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Zhou L, Kandratsenka A, Campbell CT, Wodtke AM, Guo H. Origin of Thermal and Hyperthermal CO
2
from CO Oxidation on Pt Surfaces: The Role of Post‐Transition‐State Dynamics, Active Sites, and Chemisorbed CO
2. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201900565] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Linsen Zhou
- Department of Chemistry and Chemical BiologyUniversity of New Mexico Albuquerque NM 87131 USA
| | - Alexander Kandratsenka
- Department of Dynamics at SurfacesMax Planck Institute for Biophysical Chemistry 37077 Göttingen Germany
| | | | - Alec M. Wodtke
- Department of Dynamics at SurfacesMax Planck Institute for Biophysical Chemistry 37077 Göttingen Germany
- Institute for Physical ChemistryUniversity of Göttingen 37077 Göttingen Germany
| | - Hua Guo
- Department of Chemistry and Chemical BiologyUniversity of New Mexico Albuquerque NM 87131 USA
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Singh N, Lee MS, Akhade SA, Cheng G, Camaioni DM, Gutiérrez OY, Glezakou VA, Rousseau R, Lercher JA, Campbell CT. Impact of pH on Aqueous-Phase Phenol Hydrogenation Catalyzed by Carbon-Supported Pt and Rh. ACS Catal 2018. [DOI: 10.1021/acscatal.8b04039] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Nirala Singh
- Department of Chemistry, University of Washington, Seattle, Washington 98105-1700, United States
- Institute for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Mal-Soon Lee
- Institute for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Sneha A. Akhade
- Institute for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Guanhua Cheng
- Department of Chemistry and Catalysis Research Center, Technische Universität München, D-85748 Garching, Germany
| | - Donald M. Camaioni
- Institute for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Oliver Y. Gutiérrez
- Institute for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Vassiliki-Alexandra Glezakou
- Institute for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Roger Rousseau
- Institute for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Johannes A. Lercher
- Institute for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
- Department of Chemistry and Catalysis Research Center, Technische Universität München, D-85748 Garching, Germany
| | - Charles T. Campbell
- Department of Chemistry, University of Washington, Seattle, Washington 98105-1700, United States
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Carey SJ, Zhao W, Campbell CT. Bond Energies of Adsorbed Intermediates to Metal Surfaces: Correlation with Hydrogen–Ligand and Hydrogen–Surface Bond Energies and Electronegativities. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201811225] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Spencer J. Carey
- University of Washington Department of Chemistry Seattle WA 98195-1700 USA
| | - Wei Zhao
- University of Washington Department of Chemistry Seattle WA 98195-1700 USA
- Current address: Institute for Advanced Study Shenzhen University Shenzhen Guangdong 518060 China
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Carey SJ, Zhao W, Campbell CT. Bond Energies of Adsorbed Intermediates to Metal Surfaces: Correlation with Hydrogen–Ligand and Hydrogen–Surface Bond Energies and Electronegativities. Angew Chem Int Ed Engl 2018; 57:16877-16881. [DOI: 10.1002/anie.201811225] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2018] [Revised: 10/22/2018] [Indexed: 11/07/2022]
Affiliation(s)
- Spencer J. Carey
- University of Washington Department of Chemistry Seattle WA 98195-1700 USA
| | - Wei Zhao
- University of Washington Department of Chemistry Seattle WA 98195-1700 USA
- Current address: Institute for Advanced Study Shenzhen University Shenzhen Guangdong 518060 China
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Carey SJ, Zhao W, Harman E, Baumann AK, Mao Z, Zhang W, Campbell CT. Energetics of Adsorbed Methanol and Methoxy on Ni(111): Comparisons to Pt(111). ACS Catal 2018. [DOI: 10.1021/acscatal.8b02992] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Spencer J. Carey
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Wei Zhao
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Elizabeth Harman
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Ann-Katrin Baumann
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Zhongtian Mao
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Wei Zhang
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Charles T. Campbell
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
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Campbell CT, Mao Z. Correction to “Chemical Potential of Metal Atoms in Supported Nanoparticles: Dependence upon Particle Size and Support”. ACS Catal 2018. [DOI: 10.1021/acscatal.8b02990] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Affiliation(s)
- Wei Zhao
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Spencer J. Carey
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Zhongtian Mao
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Charles T. Campbell
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
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Abstract
This tutorial review highlights recent progress in understanding the physical chemistry and materials science for developing sinter-resistant catalytic systems.
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Affiliation(s)
- Yunqian Dai
- School of Chemistry and Chemical Engineering
- Southeast University
- Nanjing
- P. R. China
| | - Ping Lu
- The Wallace H. Coulter Department of Biomedical Engineering
- Georgia Institute of Technology and Emory University
- Atlanta
- USA
| | - Zhenming Cao
- The Wallace H. Coulter Department of Biomedical Engineering
- Georgia Institute of Technology and Emory University
- Atlanta
- USA
| | | | - Younan Xia
- The Wallace H. Coulter Department of Biomedical Engineering
- Georgia Institute of Technology and Emory University
- Atlanta
- USA
- School of Chemistry and Biochemistry
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Zhang W, Ma Y, Santos-López IA, Lownsbury JM, Yu H, Liu WG, Truhlar DG, Campbell CT, Vilches OE. Energetics of van der Waals Adsorption on the Metal–Organic Framework NU-1000 with Zr6-oxo, Hydroxo, and Aqua Nodes. J Am Chem Soc 2017; 140:328-338. [DOI: 10.1021/jacs.7b10360] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Wei Zhang
- Department
of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Yuanyuan Ma
- Department
of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Iván A. Santos-López
- Department
of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - James M. Lownsbury
- Department
of Chemical Engineering, University of Washington, Seattle, Washington 98195-1750, United States
| | - Haoyu Yu
- Department
of Chemistry, Chemical Theory Center, and Minnesota Supercomputing
Institute, University of Minnesota, Minneapolis, Minnesota 55455-0431, United States
| | - Wei-Guang Liu
- Department
of Chemistry, Chemical Theory Center, and Minnesota Supercomputing
Institute, University of Minnesota, Minneapolis, Minnesota 55455-0431, United States
| | - Donald G. Truhlar
- Department
of Chemistry, Chemical Theory Center, and Minnesota Supercomputing
Institute, University of Minnesota, Minneapolis, Minnesota 55455-0431, United States
| | - Charles T. Campbell
- Department
of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
- Department
of Chemical Engineering, University of Washington, Seattle, Washington 98195-1750, United States
| | - Oscar E. Vilches
- Department
of Physics, University of Washington, Seattle, Washington 98195-1560, United States
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Affiliation(s)
- Charles T. Campbell
- Department of Chemistry, University of Washington, Campus Box 351700, Seattle, Washington 98195-1700, United States
| | - Zhongtian Mao
- Department of Chemistry, University of Washington, Campus Box 351700, Seattle, Washington 98195-1700, United States
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Campbell CT, Sellers JRV. Correction to Enthalpies and Entropies of Adsorption on Well-Defined Oxide Surfaces: Experimental Measurements. Chem Rev 2017; 117:6632. [DOI: 10.1021/acs.chemrev.7b00175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Hemmingson SL, Campbell CT. Correction to Trends in Adhesion Energies of Metal Nanoparticles on Oxide Surfaces: Understanding Support Effects in Catalysis and Nanotechnology. ACS Nano 2017; 11:4373. [PMID: 28350439 DOI: 10.1021/acsnano.7b02045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
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Affiliation(s)
- Charles T. Campbell
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
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Hemmingson SL, Campbell CT. Trends in Adhesion Energies of Metal Nanoparticles on Oxide Surfaces: Understanding Support Effects in Catalysis and Nanotechnology. ACS Nano 2017; 11:1196-1203. [PMID: 28045491 DOI: 10.1021/acsnano.6b07502] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Nanoparticles on surfaces are ubiquitous in nanotechnologies, especially in catalysis, where metal nanoparticles anchored to oxide supports are widely used to produce and use fuels and chemicals, and in pollution abatement. We show that for hemispherical metal particles of the same diameter, D, the chemical potentials of the metal atoms in the particles (μM) differ between two supports by approximately -2(Eadh,A - Eadh,B)Vm/D, where Ead,i is the adhesion energy between the metal and support i, and Vm is the molar volume of the bulk metal. This is consistent with calorimetric measurements of metal vapor adsorption energies onto clean oxide surfaces where the metal grows as 3D particles, which proved that μM increases with decreasing particle size below 6 nm and, for a given size, decreases with Eadh. Since catalytic activity and sintering rates correlate with metal chemical potential, it is thus crucial to understand what properties of catalyst materials control metal/oxide adhesion energies. Trends in how Eadh varies with the metal and the support oxide are presented. For a given oxide, Eadh increases linearly from metal to metal with increasing heat of formation of the most stable oxide of the metal (per mole metal), or metal oxophilicity, suggesting that metal-oxygen bonds dominate interfacial bonding. For the two different stoichiometric oxide surfaces that have been studied on multiple metals (MgO(100) and CeO2(111), the slopes of these lines are the same, but their offset is large (∼2 J/m2). Adhesion energies increase as MgO(100) ≈ TiO2(110) < α-Al2O3(0001) < CeO2(111) ≈ Fe3O4(111).
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Affiliation(s)
- Stephanie L Hemmingson
- Department of Chemistry University of Washington Seattle, Washington 98195-1700, United States
| | - Charles T Campbell
- Department of Chemistry University of Washington Seattle, Washington 98195-1700, United States
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Hemmingson SL, Feeley GM, Miyake NJ, Campbell CT. Energetics of 2D and 3D Gold Nanoparticles on MgO(100): Influence of Particle Size and Defects on Gold Adsorption and Adhesion Energies. ACS Catal 2017. [DOI: 10.1021/acscatal.6b03173] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Stephanie L. Hemmingson
- Department of Chemistry, University of Washington, Campus Box
351700 Seattle, Washington 98189-1700, United States
| | - Gabriel M. Feeley
- Department of Chemistry, University of Washington, Campus Box
351700 Seattle, Washington 98189-1700, United States
| | - Naomi J. Miyake
- Department of Chemistry, University of Washington, Campus Box
351700 Seattle, Washington 98189-1700, United States
| | - Charles T. Campbell
- Department of Chemistry, University of Washington, Campus Box
351700 Seattle, Washington 98189-1700, United States
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Carey SJ, Zhao W, Frehner A, Campbell CT, Jackson B. Energetics of Adsorbed Methyl and Methyl Iodide on Ni(111) by Calorimetry: Comparison to Pt(111) and Implications for Catalysis. ACS Catal 2017. [DOI: 10.1021/acscatal.6b02457] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Spencer J. Carey
- Department of Chemistry, University of Washington, Box 351700, Seattle, Washington 98195-1700, United States
| | - Wei Zhao
- Department of Chemistry, University of Washington, Box 351700, Seattle, Washington 98195-1700, United States
| | - Amilla Frehner
- Department of Chemistry, University of Washington, Box 351700, Seattle, Washington 98195-1700, United States
| | - Charles T. Campbell
- Department of Chemistry, University of Washington, Box 351700, Seattle, Washington 98195-1700, United States
| | - Bret Jackson
- Department of Chemistry, University of Massachusetts, Amherst, Massachusetts 01003, United States
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Singh N, Song Y, Gutiérrez OY, Camaioni DM, Campbell CT, Lercher JA. Electrocatalytic Hydrogenation of Phenol over Platinum and Rhodium: Unexpected Temperature Effects Resolved. ACS Catal 2016. [DOI: 10.1021/acscatal.6b02296] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Nirala Singh
- Institute
for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
- Department
of Chemistry, University of Washington, Seattle, Washington 98105-1700, United States
| | - Yang Song
- Department
of Chemistry and Catalysis Research Institute, Technische Universtät München, Garching 85747, Germany
| | - Oliver Y. Gutiérrez
- Department
of Chemistry and Catalysis Research Institute, Technische Universtät München, Garching 85747, Germany
| | - Donald M. Camaioni
- Institute
for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Charles T. Campbell
- Department
of Chemistry, University of Washington, Seattle, Washington 98105-1700, United States
| | - Johannes A. Lercher
- Institute
for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
- Department
of Chemistry and Catalysis Research Institute, Technische Universtät München, Garching 85747, Germany
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Zhao W, Bajdich M, Carey S, Vojvodic A, Nørskov JK, Campbell CT. Water Dissociative Adsorption on NiO(111): Energetics and Structure of the Hydroxylated Surface. ACS Catal 2016. [DOI: 10.1021/acscatal.6b01997] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Wei Zhao
- Department
of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Michal Bajdich
- SUNCAT
Center for Interface Science and Catalysis, Chemical Engineering, Stanford University, Stanford, California 94305, United States
- SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, United States
| | - Spencer Carey
- Department
of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Aleksandra Vojvodic
- SUNCAT
Center for Interface Science and Catalysis, Chemical Engineering, Stanford University, Stanford, California 94305, United States
- SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, United States
| | - Jens K. Nørskov
- SUNCAT
Center for Interface Science and Catalysis, Chemical Engineering, Stanford University, Stanford, California 94305, United States
- SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, United States
| | - Charles T. Campbell
- Department
of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
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Bligaard T, Bullock RM, Campbell CT, Chen JG, Gates BC, Gorte RJ, Jones CW, Jones WD, Kitchin JR, Scott SL. Toward Benchmarking in Catalysis Science: Best Practices, Challenges, and Opportunities. ACS Catal 2016. [DOI: 10.1021/acscatal.6b00183] [Citation(s) in RCA: 158] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Thomas Bligaard
- SUNCAT - Center
for Interface Science and Catalysis, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - R. Morris Bullock
- Center
for Molecular Electrocatalysis, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Charles T. Campbell
- Department
of Chemistry, University of Washington, Box 351700, Seattle, Washington 98195-1700, United States
| | - Jingguang G. Chen
- Department
of Chemical Engineering, Columbia University, New York, New York 10027, United States
- Chemistry
Department, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Bruce C. Gates
- Department of Chemical Engineering & Materials Science, University of California, Davis, California 95616, United States
| | - Raymond J. Gorte
- Department of Chemical & Biomolecular Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Christopher W. Jones
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Drive NW, Atlanta, Georgia 30332, United States
| | - William D. Jones
- Department
of Chemistry, University of Rochester, Rochester, New York 14627, United States
| | - John R. Kitchin
- Department
of Chemical Engineering, Carnegie Mellon University, 5000 Forbes
Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Susannah L. Scott
- Department
of Chemical Engineering, University of California, Santa Barbara, California 93106, United States
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Dix ST, Scott JK, Getman RB, Campbell CT. Using degrees of rate control to improve selective n-butane oxidation over model MOF-encapsulated catalysts: sterically-constrained Ag3Pd(111). Faraday Discuss 2016; 188:21-38. [DOI: 10.1039/c5fd00198f] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Metal nanoparticles encapsulated within metal organic frameworks (MOFs) offer steric restrictions near the catalytic metal that can improve selectivity, much like in enzymes. A microkinetic model is developed for the regio-selective oxidation of n-butane to 1-butanol with O2 over a model for MOF-encapsulated bimetallic nanoparticles. The model consists of a Ag3Pd(111) surface decorated with a 2-atom-thick ring of (immobile) helium atoms which creates an artificial pore of similar size to that in common MOFs, which sterically constrains the adsorbed reaction intermediates. The kinetic parameters are based on energies calculated using density functional theory (DFT). The microkinetic model was analysed at 423 K to determine the dominant pathways and which species (adsorbed intermediates and transition states in the reaction mechanism) have energies that most sensitively affect the reaction rates to the different products, using degree-of-rate-control (DRC) analysis. This analysis revealed that activation of the C–H bond is assisted by adsorbed oxygen atoms, O*. Unfortunately, O* also abstracts H from adsorbed 1-butanol and butoxy as well, leading to butanal as the only significant product. This suggested to (1) add water to produce more OH*, thus inhibiting these undesired steps which produce OH*, and (2) eliminate most of the O2 pressure to reduce the O* coverage, thus also inhibiting these steps. Combined with increasing butane pressure, this dramatically improved the 1-butanol selectivity (from 0 to 95%) and the rate (to 2 molecules per site per s). Moreover, 40% less O2 was consumed per oxygen atom in the products. Under these conditions, a terminal H in butane is directly eliminated to the Pd site, and the resulting adsorbed butyl combines with OH* to give the desired 1-butanol. These results demonstrate that DRC analysis provides a powerful approach for optimizing catalytic process conditions, and that highly selectivity oxidation can sometimes be achieved by using a mixture of O2 and H2O as the oxidant. This was further demonstrated by DRC analysis of a second microkinetic model based on a related but hypothetical catalyst, where the activation energies for two of the steps were modified.
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Affiliation(s)
- Sean T. Dix
- Department of Chemical and Biomolecular Engineering
- Clemson University
- Clemson
- USA
| | - Joseph K. Scott
- Department of Chemical and Biomolecular Engineering
- Clemson University
- Clemson
- USA
| | - Rachel B. Getman
- Department of Chemical and Biomolecular Engineering
- Clemson University
- Clemson
- USA
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Yang Y, Mei D, Peden CHF, Campbell CT, Mims CA. Surface-Bound Intermediates in Low-Temperature Methanol Synthesis on Copper: Participants and Spectators. ACS Catal 2015. [DOI: 10.1021/acscatal.5b02060] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yong Yang
- Institute
for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
- Department
of Chemistry, University of Washington, Seattle, Washington 98195, United States
| | - Donghai Mei
- Institute
for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Charles H. F. Peden
- Institute
for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Charles T. Campbell
- Department
of Chemistry, University of Washington, Seattle, Washington 98195, United States
| | - Charles A. Mims
- Departments of Chemical Engineering & Chemistry, University of Toronto, 200 College Street, Toronto, Ontario, Canada M5S 3E5
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Affiliation(s)
- Trevor E. James
- Department of Chemistry, University of Washington, Box 351700, Seattle, Washington 98195-1700 United States
| | - Stephanie L. Hemmingson
- Department of Chemistry, University of Washington, Box 351700, Seattle, Washington 98195-1700 United States
| | - Charles T. Campbell
- Department of Chemistry, University of Washington, Box 351700, Seattle, Washington 98195-1700 United States
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Schauermann S, Silbaugh TL, Campbell CT. Single-Crystal Adsorption Calorimetry on Well-Defined Surfaces: From Single Crystals to Supported Nanoparticles. CHEM REC 2014; 14:759-74. [DOI: 10.1002/tcr.201402022] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2014] [Indexed: 11/10/2022]
Affiliation(s)
- Swetlana Schauermann
- Fritz-Haber-Institut der Max-Planck-Gesellschaft; Faradayweg 4-6 14195 Berlin Germany
| | - Trent L. Silbaugh
- Department of Chemical Engineering; University of Washington; Seattle Washington 98195-1750 USA
| | - Charles T. Campbell
- Department of Chemical Engineering; University of Washington; Seattle Washington 98195-1750 USA
- Department of Chemistry; University of Washington; Seattle Washington 98195-1700 USA
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Karp EM, Silbaugh TL, Campbell CT. Bond Energies of Molecular Fragments to Metal Surfaces Track Their Bond Energies to H Atoms. J Am Chem Soc 2014; 136:4137-40. [DOI: 10.1021/ja500997n] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Eric M. Karp
- Department
of Chemical Engineering and §Department of Chemistry, University of Washington, Box 351700, Seattle, Washington 98195-1700, United States
| | - Trent L. Silbaugh
- Department
of Chemical Engineering and §Department of Chemistry, University of Washington, Box 351700, Seattle, Washington 98195-1700, United States
| | - Charles T. Campbell
- Department
of Chemical Engineering and §Department of Chemistry, University of Washington, Box 351700, Seattle, Washington 98195-1700, United States
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