1
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Bensberg M, Reiher M. Uncertainty-Aware First-Principles Exploration of Chemical Reaction Networks. J Phys Chem A 2024; 128:4532-4547. [PMID: 38787736 PMCID: PMC11163430 DOI: 10.1021/acs.jpca.3c08386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2023] [Revised: 05/13/2024] [Accepted: 05/13/2024] [Indexed: 05/26/2024]
Abstract
Exploring large chemical reaction networks with automated exploration approaches and accurate quantum chemical methods can require prohibitively large computational resources. Here, we present an automated exploration approach that focuses on the kinetically relevant part of the reaction network by interweaving (i) large-scale exploration of chemical reactions, (ii) identification of kinetically relevant parts of the reaction network through microkinetic modeling, (iii) quantification and propagation of uncertainties, and (iv) reaction network refinement. Such an uncertainty-aware exploration of kinetically relevant parts of a reaction network with automated accuracy improvement has not been demonstrated before in a fully quantum mechanical approach. Uncertainties are identified by local or global sensitivity analysis. The network is refined in a rolling fashion during the exploration. Moreover, the uncertainties are considered during kinetically steering of a rolling reaction network exploration. We demonstrate our approach for Eschenmoser-Claisen rearrangement reactions. The sensitivity analysis identifies that only a small number of reactions and compounds are essential for describing the kinetics reliably, resulting in efficient explorations without sacrificing accuracy and without requiring prior knowledge about the chemistry unfolding.
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Affiliation(s)
- Moritz Bensberg
- Department of Chemistry and Applied
Biosciences, ETH Zürich, Vladimir-Prelog-Weg 2, 8093 Zürich, Switzerland
| | - Markus Reiher
- Department of Chemistry and Applied
Biosciences, ETH Zürich, Vladimir-Prelog-Weg 2, 8093 Zürich, Switzerland
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2
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Sassi M, Rosso KM. First principles simulations of MgO(100) surface hydration at ambient conditions. Phys Chem Chem Phys 2024; 26:2269-2276. [PMID: 38165646 DOI: 10.1039/d3cp04848a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2024]
Abstract
Developing a better understanding of water ordering and hydroxylation at oxide mineral surfaces is important across a breath of application spaces. Recent vibrational sum frequency generation (vSFG) measurements on MgO(100) surfaces at ambient conditions showed that water dissociates and hydroxylates the surface yielding a non-hydrogen bonded hydroxyl species. Starting from previously determined water hydroxylation patterns on MgO(100), we performed ab initio thermodynamic calculations and vibrational analysis to compare with the vSFG observations. At ambient conditions (i.e., T = 298.15 K and pH2O = 32 mbar), the most thermodynamically favorable surface hydroxylation is found to be p(3 × 2) - 8H2O, involving a dissociation of 25% of the adsorbed water. Analysis of the vibrational density of states for this hydroxylation configuration yielded three different hydrogen bonding environments with the frequency of the peaks in very good agreement with the vSFG measurements. However, the non-H-bonded spectral feature on this surface is predicted to be similar to that expected for Mg(OH)2, a thermodynamically downhill alteration of the surface that must be independently ruled out before one can be fully confident in the apparent theory/vSFG agreement. Our study provides more insights into the ordering and structure of water monolayer at MgO(100) surface at ambient conditions and completes previous theoretical and experimental analysis performed at low temperature and ultra-high vacuum conditions.
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Affiliation(s)
- Michel Sassi
- Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, Washington 99352, USA.
| | - Kevin M Rosso
- Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, Washington 99352, USA.
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3
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Pang K, Ren R, Lv Y, Wang GC. Theoretical insight into the promotion effect of potassium additive on the water-gas shift reaction over low-coordinated Au catalysts. J Mol Model 2023; 29:250. [PMID: 37452193 DOI: 10.1007/s00894-023-05649-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Accepted: 07/03/2023] [Indexed: 07/18/2023]
Abstract
CONTEXT How to elucidate the effect of alkali metal promoters on gold-catalyzed water-gas shift reaction intrinsically remains a challenging, because that the complex synergy effects such as strong metal-support interactions, interfacial effects, and charge transfer of supported metal catalysts makes people difficulty in the understanding the alkali promotion phenomenon in nature. Herein, we report a systematically study of whole water-gas shift reaction mechanism on pure and the K-modified defected-Au(211) (i.e., by removing one surface Au atom from perfect Au(211) and make one model with the Au-Au coordination number is six) by using the microkinetic modeling based on first principles. Our results indicate that the presence of K can increase the adsorption ability of oxygen-containing species via the attractive coulomb interaction, has no significant effect on the adsorption of H species, but inhibits the adsorption of CO due to the steric effect. K promoter stabilizes the water adsorption by ~0.3 eV, which results in one order increasing of whole reaction rate. Interestingly, the strong promotion effect of the K can be assigned to the significant direct space interaction between K and the adsorbate H2O* through the inducted electric field, which can be further confirmed by the posed negative electric field on the unpromoted D-Au(211). Microkinetic modeling results revealed that the carboxyl mechanism is the most likely to occur, redox mechanism is the next one, and the formate mechanism is the least likely to occur. For different kinds of alkali metal additives, the adsorption strength of water molecules gradually weakens from Li to Cs, but Na shows the best promoter behavior at the low temperature. By considering the effect of K contents on the reactivity of water-gas shift reaction, we found that the K with the medium coverage (~0.2~0.3 ML) has the strongest promoting effect. It is expected that the conclusion of this work can be extended to other WGSR catalytic systems like Cu(or Pt). METHODS All calculations were performed by using the plane-wave based periodic method implemented in Vienna ab initio simulation package (VASP, version 5.4.4), where the ionic cores are described by the projector augmented wave (PAW) method. The exchange and correlation energies were computed using the Perdew, Burke and Ernzerhof functional with the vdw correction (PBE-D3). The transition states (TSs) were searched using the climbing image nudged elastic band (CI-NEB) method. Some electronic structure properties like work function was predicated by the DS-PAW software. Microkinetic simulation was carried out using MKMCXX software.
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Affiliation(s)
- Ke Pang
- Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan, 030024, Shanxi, China
- Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering, Taiyuan, 030024, Shanxi, China
| | - Ruipeng Ren
- Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan, 030024, Shanxi, China
- Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering, Taiyuan, 030024, Shanxi, China
| | - Yongkang Lv
- Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan, 030024, Shanxi, China.
- Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering, Taiyuan, 030024, Shanxi, China.
| | - Gui-Chang Wang
- College of Chemistry, Nankai University, Tianjin, 300071, China.
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4
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Fu X, Liang L, Wei Y. Characterization and Simulation of Nanoscale Catastrophic Failure of Metal/Ceramic Interfaces. ACS OMEGA 2023; 8:20313-20322. [PMID: 37323418 PMCID: PMC10268021 DOI: 10.1021/acsomega.2c07953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Accepted: 04/28/2023] [Indexed: 06/17/2023]
Abstract
The catastrophic failure of metal/ceramic interfaces is a complex process involving the energy transfer between accumulated elastic strain energy and many types of energy dissipation. To quantify the contribution of bulk and interface cohesive energy to the interface cleavage fracture without global plastic deformation, we characterized the quasi-static fracture process of both coherent and semi-coherent fcc-metal/MgO(001) interface systems using a spring series model and molecular static simulations. Our results show that the theoretical catastrophe point and spring-back length by the spring series model are basically consistent with the simulation results of the coherent interface systems. For defect interfaces with misfit dislocations, atomistic simulations revealed an obvious interface weakening effect in terms of reduced tensile strength and work of adhesion. As the model thickness increases, the tensile failure behaviors show significant scale effects-thick models tend to catastrophic failure with abrupt stress drop and obvious spring-back phenomenon. This work provides insight into the origin of catastrophic failure at metal/ceramic interfaces, which highlights a pathway by combining the material and structure design to improve the reliability of layered metal-ceramic composites.
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Affiliation(s)
- Xueqiong Fu
- Shenzhen
Institute of Advanced Electronic Materials, Shenzhen Institute of
Advanced Technology, Chinese Academy of
Sciences, Shenzhen 518055, China
| | - Lihong Liang
- College
of Mechanical and Electrical Engineering and Beijing Key Laboratory
of Health Monitoring and Self-Recovery for High-End Mechanical Equipment, Beijing University of Chemical Technology, Beijing 100029, China
| | - Yueguang Wei
- College
of Engineering, Peking University, Beijing 100871, China
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5
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Hakimioun AH, Vandegehuchte BD, Curulla-Ferre D, Kaźmierczak K, Plessow PN, Studt F. Metal-Support Interactions in Heterogeneous Catalysis: DFT Calculations on the Interaction of Copper Nanoparticles with Magnesium Oxide. ACS OMEGA 2023; 8:10591-10599. [PMID: 36969458 PMCID: PMC10034847 DOI: 10.1021/acsomega.3c00502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Accepted: 02/08/2023] [Indexed: 06/18/2023]
Abstract
Oxide supports play an important role in enhancing the catalytic properties of transition metal nanoparticles in heterogeneous catalysis. How extensively interactions between the oxide support and the nanoparticles impact the electronic structure as well as the surface properties of the nanoparticles is hence of high interest. In this study, the influence of a magnesium oxide support on the properties of copper nanoparticles with different size, shape, and adsorption sites is investigated using density functional theory (DFT) calculations. By proposing simple models to reduce the cost of the calculations while maintaining the accuracy of the results, we show using the nonreducible oxide support MgO as an example that there is no significant influence of the MgO support on the electronic structure of the copper nanoparticles, with the exception of adsorption directly at the Cu-MgO interface. We also propose a simplified methodology that allows us to reduce the cost of the calculations, while the accuracy of the results is maintained. We demonstrate in addition that the Cu nanowire model corresponds well to the nanoparticle model, which reduces the computational cost even further.
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Affiliation(s)
- Amir H. Hakimioun
- Institute
of Catalysis Research and Technology, Karlsruhe
Institute of Technology, Hermann-von-Helmholtz Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | | | | | | | - Philipp N. Plessow
- Institute
of Catalysis Research and Technology, Karlsruhe
Institute of Technology, Hermann-von-Helmholtz Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Felix Studt
- Institute
of Catalysis Research and Technology, Karlsruhe
Institute of Technology, Hermann-von-Helmholtz Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
- Institute
for Chemical Technology and Polymer Chemistry, Karlsruhe Institute of Technology, Engesserstrasse 18, 76131 Karlsruhe, Germany
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6
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Insights into the Role of Sensitive Surface Lattice Oxygen Species on Promoting Methane Conversion. Chem Eng Sci 2023. [DOI: 10.1016/j.ces.2023.118613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
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7
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Manavi N, Liu B. Mitigating Coke Formations for Dry Reforming of Methane on Dual-Site Catalysts: A Microkinetic Modeling Study. THE JOURNAL OF PHYSICAL CHEMISTRY C 2023; 127:2274-2284. [DOI: 10.1021/acs.jpcc.2c06788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Affiliation(s)
- Narges Manavi
- Tim Taylor Department of Chemical Engineering, Kansas State University, Manhattan, Kansas66506, United States
| | - Bin Liu
- Tim Taylor Department of Chemical Engineering, Kansas State University, Manhattan, Kansas66506, United States
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8
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Yin P, Yang Y, Yan H, Wei M. Theoretical Calculations on Metal Catalysts Toward Water-Gas Shift Reaction: a Review. Chemistry 2023; 29:e202203781. [PMID: 36723438 DOI: 10.1002/chem.202203781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Accepted: 01/31/2023] [Indexed: 02/02/2023]
Abstract
Water-gas shift (WGS) reaction offers a dominating path to hydrogen generation from fossil fuel, in which heterogeneous metal catalysts play a crucial part in this course. This review highlights and summarizes recent developments on theoretical calculations of metal catalysts developed to date, including surface structure (e. g., monometallic and polymetallic systems) and interface structure (e. g., supported catalysts and metal oxide composites), with special emphasis on the characteristics of crystal-face effect, alloying strategy, and metal-support interaction. A systematic summarization on reaction mechanism was performed, including redox mechanism, associative mechanism as well as hybrid mechanism; the development on chemical kinetics (e. g., molecular dynamics, kinetic Monte Carlo and microkinetic simulation) was then introduced. At the end, challenges associated with theoretical calculations on metal catalysts toward WGS reaction are discussed and some perspectives on the future advance of this field are provided.
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Affiliation(s)
- Pan Yin
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
- Institute of Engineering Technology, SINOPEC Catalyst Co., Ltd., Beijing, 110112, P. R. China
| | - Yusen Yang
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Hong Yan
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Min Wei
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
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9
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Longato A, Vanzan M, Colusso E, Corni S, Martucci A. Enhancing Tungsten Oxide Gasochromism with Noble Metal Nanoparticles: The Importance of the Interface. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2205522. [PMID: 36464497 DOI: 10.1002/smll.202205522] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 11/04/2022] [Indexed: 06/17/2023]
Abstract
Crystalline tungsten trioxide (WO3 ) thin films covered by noble metal (gold and platinum) nanoparticles are synthesized via wet chemistry and used as optical sensors for gaseous hydrogen. Sensing performances are strongly influenced by the catalyst used, with platinum (Pt) resulting as best. Surprisingly, it is found that gold (Au) can provide remarkable sensing activity that tuned out to be strongly dependent on the nanoparticle size: devices sensitized with smaller nanoparticles display better H2 sensing performance. Computational insight based on density functional theory calculations suggested that this can be related to processes occurring specifically at the Au nanoparticle-WO3 interface (whose extent is in fact dependent on the nanoparticle size), where the hydrogen dissociative adsorption turns out to be possible. While both experiments and calculations single out Pt as better than Au for sensing, the present work reveals how an exquisitely nanoscopic effect can yield unexpected sensing performance for Au on WO3 , and how these performances can be tuned by controlling the nanoscale features of the system.
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Affiliation(s)
- Alessandro Longato
- Department of Industrial Engineering, University of Padova and INSTM, Via Marzolo, 9, Padova, 35131, Italy
| | - Mirko Vanzan
- Department of Chemical Sciences, University of Padova, Via Marzolo 1, Padova, 35131, Italy
| | - Elena Colusso
- Department of Industrial Engineering, University of Padova and INSTM, Via Marzolo, 9, Padova, 35131, Italy
| | - Stefano Corni
- Department of Chemical Sciences, University of Padova, Via Marzolo 1, Padova, 35131, Italy
- Center S3, CNR Institute of Nanoscience, Via Campi 213/A, Modena, 41125, Italy
| | - Alessandro Martucci
- Department of Industrial Engineering, University of Padova and INSTM, Via Marzolo, 9, Padova, 35131, Italy
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10
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Garcia Carcamo RA, Zhang X, Estejab A, Zhou J, Hare BJ, Sievers C, Sarupria S, Getman RB. Differences in solvation thermodynamics of oxygenates at Pt/Al 2O 3 perimeter versus Pt(111) terrace sites. iScience 2023; 26:105980. [PMID: 36756373 PMCID: PMC9900392 DOI: 10.1016/j.isci.2023.105980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Revised: 12/26/2022] [Accepted: 01/11/2023] [Indexed: 01/19/2023] Open
Abstract
A prominent role of water in aqueous-phase heterogeneous catalysis is to modify free energies; however, intuition about how is based largely on pure metal surfaces or even homogeneous solutions. Using multiscale modeling with explicit liquid water molecules, we show that the influence of water on the free energies of adsorbates at metal/support interfaces is different than that on pure metal surfaces. We specifically compute free energies of solvation for methanol and its constituents on a Pt/Al2O3 catalyst and compare the results to analogous values calculated on a pure Pt catalyst. We find that the more hydrophilic Pt/Al2O3 interface leads to smaller (more positive) free energies of solvation due to an increased entropy penalty resulting from the additional work necessary to disrupt the interfacial water structure and accommodate the interfacial species. The results will be of interest in other fields, including adsorption and proteins.
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Affiliation(s)
| | - Xiaohong Zhang
- Department of Chemical and Biomolecular Engineering, Clemson University, Clemson, SC 29634, USA
| | - Ali Estejab
- Department of Chemical and Biomolecular Engineering, Clemson University, Clemson, SC 29634, USA
| | - Jiarun Zhou
- Department of Chemical and Biomolecular Engineering, Clemson University, Clemson, SC 29634, USA
| | - Bryan J. Hare
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Carsten Sievers
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Sapna Sarupria
- Department of Chemistry and Chemical Theory Center, University of Minnesota, Minneapolis, MN 55455, USA
| | - Rachel B. Getman
- Department of Chemical and Biomolecular Engineering, Clemson University, Clemson, SC 29634, USA,Corresponding author
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11
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Scharf S, Notz S, Thomas R, Mehring M, Tegenkamp C, Formánek P, Hübner R, Lang H. Porous Magnesium Oxide by Twin Polymerization: From Hybrid Materials to Catalysis. Eur J Inorg Chem 2023. [DOI: 10.1002/ejic.202200663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Sebastian Scharf
- Research Center for Materials Architectures and Integration of Nanomembranes (MAIN) Research Group Organometallic Chemistry Technische Universität Chemnitz Rosenbergstraße 6 D-09126 Chemnitz Germany
| | - Sebastian Notz
- Research Center for Materials Architectures and Integration of Nanomembranes (MAIN) Research Group Organometallic Chemistry Technische Universität Chemnitz Rosenbergstraße 6 D-09126 Chemnitz Germany
| | - Rico Thomas
- Technische Universität Chemnitz Faculty of Natural Sciences Institute of Chemistry Coordination Chemistry D-09107 Chemnitz Germany
| | - Michael Mehring
- Technische Universität Chemnitz Faculty of Natural Sciences Institute of Chemistry Coordination Chemistry D-09107 Chemnitz Germany
| | - Christoph Tegenkamp
- Technische Universität Chemnitz Faculty of Natural Sciences Institute of Physics Solid Surfaces Analyses D-09107 Chemnitz Germany
| | - Petr Formánek
- Leibniz-Institut für Polymerforschung Dresden e.V Institut Physikalische Chemie und Physik der Polymere D-01005 Dresden Germany
| | - René Hübner
- Institute of Ion Beam Physics and Materials Research Helmholtz-Zentrum Dresden-Rossendorf D-01328 Dresden Germany
| | - Heinrich Lang
- Research Center for Materials Architectures and Integration of Nanomembranes (MAIN) Research Group Organometallic Chemistry Technische Universität Chemnitz Rosenbergstraße 6 D-09126 Chemnitz Germany
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12
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Röckert A, Kullgren J, Hermansson K. Predicting Frequency from the External Chemical Environment: OH Vibrations on Hydrated and Hydroxylated Surfaces. J Chem Theory Comput 2022; 18:7683-7694. [PMID: 36458913 DOI: 10.1021/acs.jctc.2c00135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Abstract
Robust correlation curves are essential to decipher structural information from IR-vibrational spectra. However, for surface-adsorbed water and hydroxides, few such correlations have been presented in the literature. In this paper, OH vibrational frequencies are correlated against 12 structural descriptors representing the quantum mechanical or geometrical environment, focusing on those external to the vibrating molecule. A nonbiased fitting procedure based on Gaussian process regression (GPR) was used alongside simple analytical functional forms. The training data consist of 217 structurally unique OH groups from 38 water/metal oxide interface systems for MgO, CaO and CeO2, all optimized at the DFT level, and the fully anharmonic and uncoupled OH vibrational signatures were calculated. Among our results, we find the following: (i) The intermolecular R(H···O) hydrogen bond distance is particularly strong, indicating the primary cause of the frequency shift. (ii) Similarly, the electric field along the H-bond vector is also a good descriptor. (iii) Highly detailed machine learning descriptors (ACSF, SOAP) are less intuitive but were found to be more capable descriptors. (iv) Combinations of geometric and QM descriptors give the best predictions, supplying complementary information.
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Affiliation(s)
- Andreas Röckert
- Department of Chemistry, Ångström Laboratory, Uppsala University, Uppsala751 21, Sweden
| | - Jolla Kullgren
- Department of Chemistry, Ångström Laboratory, Uppsala University, Uppsala751 21, Sweden
| | - Kersti Hermansson
- Department of Chemistry, Ångström Laboratory, Uppsala University, Uppsala751 21, Sweden
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13
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Ro I, Qi J, Lee S, Xu M, Yan X, Xie Z, Zakem G, Morales A, Chen JG, Pan X, Vlachos DG, Caratzoulas S, Christopher P. Bifunctional hydroformylation on heterogeneous Rh-WO x pair site catalysts. Nature 2022; 609:287-292. [PMID: 36071187 DOI: 10.1038/s41586-022-05075-4] [Citation(s) in RCA: 38] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Accepted: 07/05/2022] [Indexed: 11/09/2022]
Abstract
Metal-catalysed reactions are often hypothesized to proceed on bifunctional active sites, whereby colocalized reactive species facilitate distinct elementary steps in a catalytic cycle1-8. Bifunctional active sites have been established on homogeneous binuclear organometallic catalysts9-11. Empirical evidence exists for bifunctional active sites on supported metal catalysts, for example, at metal-oxide support interfaces2,6,7,12. However, elucidating bifunctional reaction mechanisms on supported metal catalysts is challenging due to the distribution of potential active-site structures, their dynamic reconstruction and required non-mean-field kinetic descriptions7,12,13. We overcome these limitations by synthesizing supported, atomically dispersed rhodium-tungsten oxide (Rh-WOx) pair site catalysts. The relative simplicity of the pair site structure and sufficient description by mean-field modelling enable correlation of the experimental kinetics with first principles-based microkinetic simulations. The Rh-WOx pair sites catalyse ethylene hydroformylation through a bifunctional mechanism involving Rh-assisted WOx reduction, transfer of ethylene from WOx to Rh and H2 dissociation at the Rh-WOx interface. The pair sites exhibited >95% selectivity at a product formation rate of 0.1 gpropanal cm-3 h-1 in gas-phase ethylene hydroformylation. Our results demonstrate that oxide-supported pair sites can enable bifunctional reaction mechanisms with high activity and selectivity for reactions that are performed in industry using homogeneous catalysts.
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Affiliation(s)
- Insoo Ro
- Department of Chemical Engineering, University of California, Santa Barbara, Santa Barbara, CA, USA.,Department of Chemical and Biomolecular Engineering, Seoul National University of Science and Technology, Seoul, Republic of Korea.,Catalysis Center for Energy Innovation, Newark, DE, USA
| | - Ji Qi
- Department of Chemical Engineering, University of California, Santa Barbara, Santa Barbara, CA, USA.,Catalysis Center for Energy Innovation, Newark, DE, USA
| | - Seungyeon Lee
- Catalysis Center for Energy Innovation, Newark, DE, USA.,Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, DE, USA
| | - Mingjie Xu
- Department of Materials Science and Engineering, University of California Irvine, Irvine, CA, USA
| | - Xingxu Yan
- Department of Materials Science and Engineering, University of California Irvine, Irvine, CA, USA
| | - Zhenhua Xie
- Chemistry Division, Brookhaven National Laboratory, Upton, NY, USA.,Department of Chemical Engineering, Columbia University, New York, NY, USA
| | - Gregory Zakem
- Department of Chemical Engineering, University of California, Santa Barbara, Santa Barbara, CA, USA
| | - Austin Morales
- Department of Chemical Engineering, University of California, Santa Barbara, Santa Barbara, CA, USA
| | - Jingguang G Chen
- Chemistry Division, Brookhaven National Laboratory, Upton, NY, USA.,Department of Chemical Engineering, Columbia University, New York, NY, USA
| | - Xiaoqing Pan
- Department of Materials Science and Engineering, University of California Irvine, Irvine, CA, USA.,Department of Physics and Astronomy, University of California, Irvine, Irvine, CA, USA.,Irvine Materials Research Institute (IMRI), University of California Irvine, Irvine, Irvine, CA, USA
| | - Dionisios G Vlachos
- Catalysis Center for Energy Innovation, Newark, DE, USA.,Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, DE, USA
| | - Stavros Caratzoulas
- Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, DE, USA
| | - Phillip Christopher
- Department of Chemical Engineering, University of California, Santa Barbara, Santa Barbara, CA, USA. .,Catalysis Center for Energy Innovation, Newark, DE, USA.
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14
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Zhang Z, Zheng B, Tian H, He Y, Huang X, Ali S, Xu H. Rational design of highly efficient MXene-based catalysts for the water-gas-shift reaction. Phys Chem Chem Phys 2022; 24:18265-18271. [PMID: 35876328 DOI: 10.1039/d1cp05789h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Water molecules linked by hydrogen bonds are responsible for the high efficiency of bi-functional catalysts for the water-gas-shift (WGS) reaction because water can act as a proton transfer medium. Herein, we propose an associative pathway for the WGS reaction assisted by water to realize hydrogen production. Based on this pathway, we show by first-principles calculations that a large family of oxygen-terminated two-dimensional transition metal carbides and nitrides (MXenes) deposited on Au clusters are promising catalysts for the WGS reaction. Remarkably, the rate-determining barriers for *CO → *COOH on Au/Mn+1XnO2 are in the range from 0.15 eV to 0.39 eV, indicating that WGS can occur at much lower temperatures. Furthermore, a comprehensive microkinetic model is constructed to describe the turnover frequencies (TOF) for the product under the steady-state conditions. More importantly, there is a perfect linear scaling relationship between the rate-determining barriers of the WGS and the free energy of the adsorbed hydrogen. Besides, the potential energy diagrams for CO reforming reveal that the F terminations introduced in experiments have only a slight influence on the catalytic performance of the oxygen-terminated MXenes. Our work not only opens a new avenue towards the WGS reaction but also provides many ideal catalysts for hydrogen production.
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Affiliation(s)
- Zhe Zhang
- College of Physical Science and Technology, Yangzhou University, Yangzhou 225002, China.,Department of Physics, Southern University of Science and Technology, Shenzhen 518055, China
| | - Baobing Zheng
- College of Physics and Optoelectronic Technology, Nonlinear Research Institute, Baoji University of Arts and Sciences, Baoji 721016, China
| | - Hao Tian
- Department of Physics, Southern University of Science and Technology, Shenzhen 518055, China.,Department of Physics, The University of Hong Kong, Hong Kong
| | - Yanling He
- Department of Physics, Southern University of Science and Technology, Shenzhen 518055, China.,Department of Physics, The University of Hong Kong, Hong Kong
| | - Xiang Huang
- Department of Physics, Southern University of Science and Technology, Shenzhen 518055, China
| | - Sajjad Ali
- Department of Physics, Southern University of Science and Technology, Shenzhen 518055, China
| | - Hu Xu
- Department of Physics, Southern University of Science and Technology, Shenzhen 518055, China.,Guangdong Provincial Key Laboratory of Computational Science and Material Design, Southern University of Science and Technology, Shenzhen, 518055, China.,Shenzhen Key Laboratory for Advanced Quantum Functional Materials and Devices, Southern University of Science and Technology, Shenzhen 518055, China.
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15
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Shin D, Huang R, Jang MG, Choung S, Kim Y, Sung K, Kim TY, Han JW. Role of an Interface for Hydrogen Production Reaction over Size-Controlled Supported Metal Catalysts. ACS Catal 2022. [DOI: 10.1021/acscatal.2c02370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Dongjae Shin
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk 37673, Republic of Korea
| | - Rui Huang
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk 37673, Republic of Korea
| | - Myeong Gon Jang
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk 37673, Republic of Korea
| | - Seokhyun Choung
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk 37673, Republic of Korea
| | - Youngbi Kim
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk 37673, Republic of Korea
| | - Kiheon Sung
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk 37673, Republic of Korea
| | - Tae Yong Kim
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk 37673, Republic of Korea
| | - Jeong Woo Han
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk 37673, Republic of Korea
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16
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Rostovshchikova TN, Nikolaev SA, Krotova IN, Maslakov KI, Udalova OV, Gurevich SA, Yavsin DA, Shilina MI. ZSM-5 and BEA zeolites modified with Pd nanoparticles by laser electrodispersion. The structure and catalytic activity in CO and CH4 oxidation. Russ Chem Bull 2022. [DOI: 10.1007/s11172-022-3519-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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17
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Prabhu AM, Choksi TS. Data-driven methods to predict the stability metrics of catalytic nanoparticles. Curr Opin Chem Eng 2022. [DOI: 10.1016/j.coche.2022.100797] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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18
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Jang MG, Yoon S, Shin D, Kim HJ, Huang R, Yang E, Kim J, Lee KS, An K, Han JW. Boosting Support Reducibility and Metal Dispersion by Exposed Surface Atom Control for Highly Active Supported Metal Catalysts. ACS Catal 2022. [DOI: 10.1021/acscatal.2c00476] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Myeong Gon Jang
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk 37673, Republic of Korea
| | - Sinmyung Yoon
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Dongjae Shin
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk 37673, Republic of Korea
| | - Hyung Jun Kim
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk 37673, Republic of Korea
| | - Rui Huang
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk 37673, Republic of Korea
| | - Euiseob Yang
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Jihun Kim
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Kug-Seung Lee
- Beamline Division, Pohang Accelerator Laboratory (PAL), Pohang, Gyeongbuk 37673, Republic of Korea
| | - Kwangjin An
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Jeong Woo Han
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk 37673, Republic of Korea
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19
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Shekhar M, Lee WS, Akatay MC, Maciel L, Tang W, Miller JT, Stach EA, Neurock M, Delgass WN, Ribeiro FH. Water-gas shift reaction over supported Au nanoparticles. J Catal 2022. [DOI: 10.1016/j.jcat.2021.12.021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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20
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21
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Mahdavi-Shakib A, Rich LC, Whittaker TN, Chandler BD. Hydrogen Adsorption at the Au/TiO2 Interface: Quantitative Determination and Spectroscopic Signature of the Reactive Interface Hydroxyl Groups at the Active Site. ACS Catal 2021. [DOI: 10.1021/acscatal.1c04419] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Akbar Mahdavi-Shakib
- Department of Chemistry, Trinity University, San Antonio, Texas 78212-7200, United States
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Lauren C. Rich
- Department of Chemistry, Trinity University, San Antonio, Texas 78212-7200, United States
| | - Todd N. Whittaker
- Department of Chemistry, Trinity University, San Antonio, Texas 78212-7200, United States
- Department of Chemical and Biological Engineering, The University of Colorado, Boulder, Colorado 80303, United States
| | - Bert D. Chandler
- Department of Chemistry, Trinity University, San Antonio, Texas 78212-7200, United States
- Department of Chemical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
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22
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Liu X, Ma Z, Meng Y, Ma YJ, Wen XD. First-principles study on the mechanism of water-gas shift reaction on the Fe3O4 (111)-Fetet1. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2021.111998] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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23
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Yun YS, Berdugo-Díaz CE, Flaherty DW. Advances in Understanding the Selective Hydrogenolysis of Biomass Derivatives. ACS Catal 2021. [DOI: 10.1021/acscatal.1c02866] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Yang Sik Yun
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
| | - Claudia E. Berdugo-Díaz
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
| | - David W. Flaherty
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
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24
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Gell L, Lempelto A, Kiljunen T, Honkala K. Influence of a Cu-zirconia interface structure on CO 2 adsorption and activation. J Chem Phys 2021; 154:214707. [PMID: 34240985 DOI: 10.1063/5.0049293] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
CO2 adsorption and activation on a catalyst are key elementary steps for CO2 conversion to various valuable products. In the present computational study, we screened different Cu-ZrO2 interface structures and analyzed the influence of the interface structure on CO2 binding strength using density functional theory calculations. Our results demonstrate that a Cu nanorod favors one position on both tetragonal and monoclinic ZrO2 surfaces, where the bottom Cu atoms are placed close to the lattice oxygens. In agreement with previous calculations, we find that CO2 prefers a bent bidentate configuration at the Cu-ZrO2 interface and the molecule is clearly activated being negatively charged. Straining of the Cu nanorod influences CO2 adsorption energy but does not change the preferred nanorod position on zirconia. Altogether, our results highlight that CO2 adsorption and activation depend sensitively on the chemical composition and atomic structure of the interface used in the calculations. This structure sensitivity may potentially impact further catalytic steps and the overall computed reactivity profile.
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Affiliation(s)
- Lars Gell
- Department of Chemistry, Nanoscience Center, University of Jyväskylä, P.O. Box 35 (YN), Jyväskylä FI-40014, Finland
| | - Aku Lempelto
- Department of Chemistry, Nanoscience Center, University of Jyväskylä, P.O. Box 35 (YN), Jyväskylä FI-40014, Finland
| | - Toni Kiljunen
- Department of Chemistry, Nanoscience Center, University of Jyväskylä, P.O. Box 35 (YN), Jyväskylä FI-40014, Finland
| | - Karoliina Honkala
- Department of Chemistry, Nanoscience Center, University of Jyväskylä, P.O. Box 35 (YN), Jyväskylä FI-40014, Finland
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25
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Yan H, Shen Q, Sun Y, Zhao S, Lu R, Gong M, Liu Y, Zhou X, Jin X, Feng X, Chen X, Chen D, Yang C. Tailoring Facets of α-Mn 2O 3 Microcrystalline Catalysts for Enhanced Selective Oxidation of Glycerol to Glycolic Acid. ACS Catal 2021. [DOI: 10.1021/acscatal.1c01566] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Hao Yan
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao 266580, China
| | - Qi Shen
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao 266580, China
| | - Yinghao Sun
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao 266580, China
| | - Siming Zhao
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao 266580, China
| | - Ruilong Lu
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao 266580, China
| | - Mengcong Gong
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao 266580, China
| | - Yibin Liu
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao 266580, China
| | - Xin Zhou
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao 266580, China
| | - Xin Jin
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao 266580, China
| | - Xiang Feng
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao 266580, China
| | - Xiaobo Chen
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao 266580, China
| | - De Chen
- Department of Chemical Engineering, Norwegian University of Science and Technology, Trondheim 7491, Norway
| | - Chaohe Yang
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao 266580, China
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26
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27
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Melani G, Nagata Y, Saalfrank P. Vibrational energy relaxation of interfacial OH on a water-covered α-Al 2O 3(0001) surface: a non-equilibrium ab initio molecular dynamics study. Phys Chem Chem Phys 2021; 23:7714-7723. [PMID: 32857089 DOI: 10.1039/d0cp03777j] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Vibrational relaxation of adsorbates is a sensitive tool to probe energy transfer at gas/solid and liquid/solid interfaces. The most direct way to study relaxation dynamics uses time-resolved spectroscopy. Here we report on a non-equilibrium ab initio molecular dynamics (NE-AIMD) methodology to model vibrational relaxation of OH vibrations on a hydroxylated, water-covered α-Al2O3(0001) surface. In our NE-AIMD approach, after exciting selected O-H bonds their coupling to surface phonons and to the water adlayer is analyzed in detail, by following both the energy flow in time, as well as the time-evolution of Vibrational Density of States (VDOS) curves. The latter are obtained from Time-dependent Correlation Functions (TCFs) and serve as prototypical, generic representatives of time-resolved vibrational spectra. As most important results, (i) we find a few-picosecond lifetime of the excited modes and (ii) identify both hydrogen-bonded aluminols and water molecules in the adsorbed water layer as main dissipative channels, while the direct coupling to Al2O3 surface phonons is of minor importance on the timescales of interest. Our NE-AIMD/TCF methodology is powerful for complex adsorbate systems, in principle even reacting ones, and opens a way towards time-resolved vibrational spectroscopy.
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Affiliation(s)
- Giacomo Melani
- Institut für Chemie, Universität Zürich, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland.
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28
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Rostovshchikova TN, Lokteva ES, Shilina MI, Golubina EV, Maslakov KI, Krotova IN, Bryzhin AA, Tarkhanova IG, Udalova OV, Kozhevin VM, Yavsin DA, Gurevich SA. Laser Electrodispersion of Metals for the Synthesis of Nanostructured Catalysts: Achievements and Prospects. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2021. [DOI: 10.1134/s0036024421030171] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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29
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Yan H, Yao S, Zhao S, Liu M, Zhang W, Zhou X, Zhang G, Jin X, Liu Y, Feng X, Chen X, Chen D, Yang C. Insight into the basic strength-dependent catalytic performance in aqueous phase oxidation of glycerol to glyceric acid. Chem Eng Sci 2021. [DOI: 10.1016/j.ces.2020.116191] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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30
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Abstract
The design of heterogeneous catalysts relies on understanding the fundamental surface kinetics that controls catalyst performance, and microkinetic modeling is a tool that can help the researcher in streamlining the process of catalyst design. Microkinetic modeling is used to identify critical reaction intermediates and rate-determining elementary reactions, thereby providing vital information for designing an improved catalyst. In this review, we summarize general procedures for developing microkinetic models using reaction kinetics parameters obtained from experimental data, theoretical correlations, and quantum chemical calculations. We examine the methods required to ensure the thermodynamic consistency of the microkinetic model. We describe procedures required for parameter adjustments to account for the heterogeneity of the catalyst and the inherent errors in parameter estimation. We discuss the analysis of microkinetic models to determine the rate-determining reactions using the degree of rate control and reversibility of each elementary reaction. We introduce incorporation of Brønsted-Evans-Polanyi relations and scaling relations in microkinetic models and the effects of these relations on catalytic performance and formation of volcano curves are discussed. We review the analysis of reaction schemes in terms of the maximum rate of elementary reactions, and we outline a procedure to identify kinetically significant transition states and adsorbed intermediates. We explore the application of generalized rate expressions for the prediction of optimal binding energies of important surface intermediates and to estimate the extent of potential rate improvement. We also explore the application of microkinetic modeling in homogeneous catalysis, electro-catalysis, and transient reaction kinetics. We conclude by highlighting the challenges and opportunities in the application of microkinetic modeling for catalyst design.
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Affiliation(s)
- Ali Hussain Motagamwala
- Department of Chemical and Biological Engineering, University of Wisconsin-Madison, 1415 Engineering Drive, Madison, Wisconsin 53706, United States
| | - James A Dumesic
- Department of Chemical and Biological Engineering, University of Wisconsin-Madison, 1415 Engineering Drive, Madison, Wisconsin 53706, United States
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31
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Abstract
The unprecedented ability of computations to probe atomic-level details of catalytic systems holds immense promise for the fundamentals-based bottom-up design of novel heterogeneous catalysts, which are at the heart of the chemical and energy sectors of industry. Here, we critically analyze recent advances in computational heterogeneous catalysis. First, we will survey the progress in electronic structure methods and atomistic catalyst models employed, which have enabled the catalysis community to build increasingly intricate, realistic, and accurate models of the active sites of supported transition-metal catalysts. We then review developments in microkinetic modeling, specifically mean-field microkinetic models and kinetic Monte Carlo simulations, which bridge the gap between nanoscale computational insights and macroscale experimental kinetics data with increasing fidelity. We finally review the advancements in theoretical methods for accelerating catalyst design and discovery. Throughout the review, we provide ample examples of applications, discuss remaining challenges, and provide our outlook for the near future.
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Affiliation(s)
- Benjamin W J Chen
- Department of Chemical and Biological Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Lang Xu
- Department of Chemical and Biological Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Manos Mavrikakis
- Department of Chemical and Biological Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
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32
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Mitchell GM, Sabnis KD, Sollberger FG, Cui Y, Han CW, Majumdar P, Zeng Z, Miller JT, Greeley J, Ortalan V, Wang C, Delgass WN, Ribeiro FH. Effect of cobalt addition on platinum supported on multi-walled carbon nanotubes for water-gas shift. J Catal 2020. [DOI: 10.1016/j.jcat.2020.07.028] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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33
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Bryzhin AA, Golubina EV, Maslakov KI, Lokteva ES, Tarkhanova IG, Gurevich SA, Yavsin DA, Rostovshchikova TN. Bimetallic Nanostructured Catalysts Prepared by Laser Electrodispersion: Structure and Activity in Redox Reactions. ChemCatChem 2020. [DOI: 10.1002/cctc.202000501] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- A. A. Bryzhin
- Department of Chemistry Lomonosov Moscow State University Leninskie Gory, 1/3 119991 Moscow Russia
| | - E. V. Golubina
- Department of Chemistry Lomonosov Moscow State University Leninskie Gory, 1/3 119991 Moscow Russia
| | - K. I. Maslakov
- Department of Chemistry Lomonosov Moscow State University Leninskie Gory, 1/3 119991 Moscow Russia
| | - E. S. Lokteva
- Department of Chemistry Lomonosov Moscow State University Leninskie Gory, 1/3 119991 Moscow Russia
| | - I. G. Tarkhanova
- Department of Chemistry Lomonosov Moscow State University Leninskie Gory, 1/3 119991 Moscow Russia
| | - S. A. Gurevich
- Ioffe Physical-Technical Institute of RAS Politekhnicheskaya, 26 194021 Saint Petersburg Russia
| | - D. A. Yavsin
- Ioffe Physical-Technical Institute of RAS Politekhnicheskaya, 26 194021 Saint Petersburg Russia
| | - T. N. Rostovshchikova
- Department of Chemistry Lomonosov Moscow State University Leninskie Gory, 1/3 119991 Moscow Russia
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34
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Hongmanorom P, Ashok J, Das S, Dewangan N, Bian Z, Mitchell G, Xi S, Borgna A, Kawi S. Zr–Ce-incorporated Ni/SBA-15 catalyst for high-temperature water gas shift reaction: Methane suppression by incorporated Zr and Ce. J Catal 2020. [DOI: 10.1016/j.jcat.2019.11.042] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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35
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Levy JN, Alegre-Requena JV, Liu R, Paton RS, McNally A. Selective Halogenation of Pyridines Using Designed Phosphine Reagents. J Am Chem Soc 2020; 142:11295-11305. [PMID: 32469220 DOI: 10.1021/jacs.0c04674] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Halopyridines are key building blocks for synthesizing pharmaceuticals, agrochemicals, and ligands for metal complexes, but strategies to selectively halogenate pyridine C-H precursors are lacking. We designed a set of heterocyclic phosphines that are installed at the 4-position of pyridines as phosphonium salts and then displaced with halide nucleophiles. A broad range of unactivated pyridines can be halogenated, and the method is viable for late-stage halogenation of complex pharmaceuticals. Computational studies indicate that C-halogen bond formation occurs via an SNAr pathway, and phosphine elimination is the rate-determining step. Steric interactions during C-P bond cleavage account for differences in reactivity between 2- and 3-substituted pyridines.
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Affiliation(s)
- Jeffrey N Levy
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Juan V Alegre-Requena
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Renrong Liu
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Robert S Paton
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Andrew McNally
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
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36
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Liang J, Lin J, Liu J, Wang X, Zhang T, Li J. Dual Metal Active Sites in an Ir
1
/FeO
x
Single‐Atom Catalyst: A Redox Mechanism for the Water‐Gas Shift Reaction. Angew Chem Int Ed Engl 2020; 59:12868-12875. [DOI: 10.1002/anie.201914867] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Revised: 02/24/2020] [Indexed: 11/07/2022]
Affiliation(s)
- Jin‐Xia Liang
- Guizhou Provincial Key Laboratory of Computational Nano-Material Science Guizhou Education University Guiyang 550018 China
| | - Jian Lin
- Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 China
| | - Jingyue Liu
- Department of Physics Arizona State University Tempe AZ 85287 USA
| | - Xiaodong Wang
- Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 China
| | - Tao Zhang
- Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 China
| | - Jun Li
- Department of Chemistry and Key Laboratory of Organic Optoelectronics & Molecular Engineering of Ministry of Education Tsinghua University Beijing 100084 China
- Department of Chemistry Southern University of Science and Technology Shenzhen 518055 China
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37
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Liang J, Lin J, Liu J, Wang X, Zhang T, Li J. Dual Metal Active Sites in an Ir
1
/FeO
x
Single‐Atom Catalyst: A Redox Mechanism for the Water‐Gas Shift Reaction. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201914867] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jin‐Xia Liang
- Guizhou Provincial Key Laboratory of Computational Nano-Material Science Guizhou Education University Guiyang 550018 China
| | - Jian Lin
- Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 China
| | - Jingyue Liu
- Department of Physics Arizona State University Tempe AZ 85287 USA
| | - Xiaodong Wang
- Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 China
| | - Tao Zhang
- Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 China
| | - Jun Li
- Department of Chemistry and Key Laboratory of Organic Optoelectronics & Molecular Engineering of Ministry of Education Tsinghua University Beijing 100084 China
- Department of Chemistry Southern University of Science and Technology Shenzhen 518055 China
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38
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Nelson NC, Szanyi J. Heterolytic Hydrogen Activation: Understanding Support Effects in Water–Gas Shift, Hydrodeoxygenation, and CO Oxidation Catalysis. ACS Catal 2020. [DOI: 10.1021/acscatal.0c01059] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Nicholas C. Nelson
- Institute for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - János Szanyi
- Institute for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
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39
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Catalysis at Metal/Oxide Interfaces: Density Functional Theory and Microkinetic Modeling of Water Gas Shift at Pt/MgO Boundaries. Top Catal 2020. [DOI: 10.1007/s11244-020-01257-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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40
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Sravan Kumar KB, Whittaker TN, Peterson C, Grabow LC, Chandler BD. Water Poisons H 2 Activation at the Au-TiO 2 Interface by Slowing Proton and Electron Transfer between Au and Titania. J Am Chem Soc 2020; 142:5760-5772. [PMID: 32083865 DOI: 10.1021/jacs.9b13729] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Understanding the dynamic changes at the active site during catalysis is a fundamental challenge that promises to improve catalytic properties. While performing Arrhenius studies during H2 oxidation over Au/TiO2 catalysts, we found different apparent activation energies (Eapp) depending on the feedwater pressure. This is partially attributed to changing numbers of metal-support interface (MSI) sites as water coverage changes with temperature. Constant water coverage studies showed two kinetic regimes: fast heterolytic H2 activation directly at the MSI (Eapp ∼ 25 kJ/mol) and significantly slower heterolytic H2 activation mediated by water (Eapp ∼ 45 kJ/mol). The two regimes had significantly different kinetics, suggesting a complicated mechanism of water poisoning. Density functional theory (DFT) showed water has minor effects on the reaction thermodynamics, primarily attributable to intrinsic differences in surface reactivity of different Au sites in the DFT model. The DFT model suggested significant surface restructuring of the TiO2 support during heterolytic H2 adsorption; evidence for this phenomenon was observed during in situ infrared spectroscopy experiments. A monolayer of water on the hydroxylated TiO2 surface increased the H2 dissociation activation barrier by ∼0.2 eV, in good agreement the difference in experimentally measured values. DFT calculations suggested H2 activation goes through a proton-coupled electron-transfer-like mechanism. During proton transfer to a basic support hydroxyl group, electron density is distributed through the gold nanorod and partially localized on the protonated support hydroxyl group. Water slows H2 activation by slowing this H+ transfer, forcing negative charge buildup on the Au and increasing the transition state energy.
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Affiliation(s)
- K B Sravan Kumar
- Department of Chemistry, Trinity University, San Antonio, Texas 78212-7200, United States.,Department of Chemical and Biomolecular Engineering, University of Houston, Houston, Texas 77204-4004, United States
| | - Todd N Whittaker
- Department of Chemistry, Trinity University, San Antonio, Texas 78212-7200, United States
| | - Christine Peterson
- Department of Chemistry, Trinity University, San Antonio, Texas 78212-7200, United States
| | - Lars C Grabow
- Department of Chemical and Biomolecular Engineering, University of Houston, Houston, Texas 77204-4004, United States
| | - Bert D Chandler
- Department of Chemistry, Trinity University, San Antonio, Texas 78212-7200, United States
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41
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Kim M, Franklin AD, Martin R, Bian Y, Weaver JF, Asthagiri A. Kinetics of low-temperature methane activation on IrO2(1 1 0): Role of local surface hydroxide species. J Catal 2020. [DOI: 10.1016/j.jcat.2020.01.027] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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42
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Wang YX, Wang GC. A systematic theoretical study of the water gas shift reaction on the Pt/ZrO 2 interface and Pt(111) face: key role of a potassium additive. Catal Sci Technol 2020. [DOI: 10.1039/c9cy02287b] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
K can enhance the activity of the WGSR on the Pt40/ZrO2 model by reducing both the H2O and COOH dissociation barriers.
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Affiliation(s)
- Yan-Xin Wang
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education)
- and the Tianjin key Lab and Molecule-based Material Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
| | - Gui-Chang Wang
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education)
- and the Tianjin key Lab and Molecule-based Material Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
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43
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Xia S, Dai T, Meng Y, Zhou X, Pan G, Zhang X, Ni Z. A low-temperature water–gas shift reaction catalyzed by hybrid NiO@NiCr-layered double hydroxides: catalytic property, kinetics and mechanism investigation. Phys Chem Chem Phys 2020; 22:12630-12643. [DOI: 10.1039/d0cp01242d] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
The realization of a high efficiency water gas shift reaction (WGSR) at low temperatures has always been a research hotspot and is difficult to achieve.
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Affiliation(s)
- Shengjie Xia
- Department of Chemistry
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310014
- P. R. China
| | - Tiantian Dai
- Department of Chemistry
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310014
- P. R. China
| | - Yue Meng
- School of Life Science
- Huzhou University
- Huzhou 313000
- P. R. China
- Qiuzhen College
| | | | - Guoxiang Pan
- School of Life Science
- Huzhou University
- Huzhou 313000
- P. R. China
| | - Xueqiang Zhang
- Department of Chemical and Biomolecular Engineering
- UC Berkeley, Berkeley
- California 94720
- USA
| | - Zheming Ni
- Department of Chemistry
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310014
- P. R. China
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44
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Kauppinen MM, Korpelin V, Verma AM, Melander MM, Honkala K. Escaping scaling relationships for water dissociation at interfacial sites of zirconia-supported Rh and Pt clusters. J Chem Phys 2019; 151:164302. [DOI: 10.1063/1.5126261] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Affiliation(s)
- Minttu M. Kauppinen
- Department of Chemistry, Nanoscience Center, University of Jyväskylä, P.O. Box 35 (YN), Jyväskylä FI-40014, Finland
| | - Ville Korpelin
- Department of Chemistry, Nanoscience Center, University of Jyväskylä, P.O. Box 35 (YN), Jyväskylä FI-40014, Finland
| | - Anand Mohan Verma
- Department of Chemistry, Nanoscience Center, University of Jyväskylä, P.O. Box 35 (YN), Jyväskylä FI-40014, Finland
| | - Marko M. Melander
- Department of Chemistry, Nanoscience Center, University of Jyväskylä, P.O. Box 35 (YN), Jyväskylä FI-40014, Finland
| | - Karoliina Honkala
- Department of Chemistry, Nanoscience Center, University of Jyväskylä, P.O. Box 35 (YN), Jyväskylä FI-40014, Finland
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45
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Lozano-Blanco G, Tatarchuk BJ, Adamczyk AJ. Building a Microkinetic Model from First Principles for Higher Amine Synthesis on Pd Catalyst. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b03577] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Gisela Lozano-Blanco
- Department of Chemical Engineering, Auburn University, Auburn, Alabama 36849-5127, United States
| | - Bruce J. Tatarchuk
- Department of Chemical Engineering, Auburn University, Auburn, Alabama 36849-5127, United States
| | - Andrew J. Adamczyk
- Department of Chemical Engineering, Auburn University, Auburn, Alabama 36849-5127, United States
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46
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Wang Y, Zhang X, Fu Z, Lu Z, Yang Z. An electronic perturbation in TiC supported platinum monolayer catalyst for enhancing water-gas shift performance: DFT study. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2019; 31:305201. [PMID: 30991374 DOI: 10.1088/1361-648x/ab1a13] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The water-gas shift (WGS) reaction behaviors over the TiC(0 0 1) supported Pt monolayer catalyst (PtML/TiC(0 0 1)) are investigated by using the spin-unrestricted density functional theory calculations. Importantly, we find that the PtML/TiC(0 0 1) system exhibits a much lower density of Pt-5d states nearby the Fermi level compared with that for Pt(1 1 1), and the monolayer Pt atoms undergo an electronic perturbation when in contact with TiC(0 0 1) support that would strongly improve the WGS activity of supported Pt atoms. Our calculations clearly indicate that the dominant reaction path follows a carboxyl mechanism involving a key COOH intermediate, rather than the common redox mechanism. Furthermore, through the detailed comparisons, the results demonstrate that the strong interactions between the monolayer Pt atoms and TiC(0 0 1) support make PtML/TiC(0 0 1) a highly active catalyst for the low-temperature WGS reaction. Following the route presented by Bruix et al (2012 J. Am. Chem. Soc. 134 8968-74), the positive effect derived from strong metal-support interaction in the metal/carbide system is revealed.
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Affiliation(s)
- Yan Wang
- College of Physics and Materials Science, Henan Normal University, Xinxiang, Henan 453007, People's Republic of China
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47
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Ammal SC, Heyden A. Understanding the Nature and Activity of Supported Platinum Catalysts for the Water–Gas Shift Reaction: From Metallic Nanoclusters to Alkali-Stabilized Single-Atom Cations. ACS Catal 2019. [DOI: 10.1021/acscatal.9b01560] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Salai Cheettu Ammal
- Department of Chemical Engineering, University of South Carolina, 301 South Main Street, Columbia, South Carolina 29208, United States
| | - Andreas Heyden
- Department of Chemical Engineering, University of South Carolina, 301 South Main Street, Columbia, South Carolina 29208, United States
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48
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Melani G, Nagata Y, Campen RK, Saalfrank P. Vibrational spectra of dissociatively adsorbed D 2O on Al-terminated α-Al 2O 3(0001) surfaces from ab initio molecular dynamics. J Chem Phys 2019; 150:244701. [PMID: 31255084 DOI: 10.1063/1.5099895] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Water can adsorb molecularly or dissociatively onto different sites of metal oxide surfaces. These adsorption sites can be disentangled using surface-sensitive vibrational spectroscopy. Here, we model Vibrational Sum Frequency (VSF) spectra for various forms of dissociated, deuterated water on a reconstructed, Al-terminated α-Al2O3(0001) surface at submonolayer coverages (the so-called 1-2, 1-4, and 1-4' modes). Using an efficient scheme based on velocity-velocity autocorrelation functions, we go beyond previous normal mode analyses by including anharmonicity, mode coupling, and thermal surface motion in the framework of ab initio molecular dynamics. In this way, we calculate vibrational density of states curves, infrared, and VSF spectra. Comparing computed VSF spectra with measured ones, we find that relative frequencies of resonances are in quite good agreement and linewidths are reasonably well represented, while VSF intensities coincide not well. We argue that intensities are sensitively affected by local interactions and thermal fluctuations, even at such low coverage, while absolute peak positions strongly depend on the choice of the electronic structure method and on the appropriate inclusion of anharmonicity.
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Affiliation(s)
- Giacomo Melani
- Theoretische Chemie, Institut für Chemie, Universität Potsdam, Karl-Liebknecht-Straße 24-25, D-14476 Potsdam-Golm, Germany
| | - Yuki Nagata
- Max-Planck-Institut für Polymerforschung, Ackermannweg 10, 55128 Mainz, Germany
| | - R Kramer Campen
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, D-14195 Berlin, Germany
| | - Peter Saalfrank
- Theoretische Chemie, Institut für Chemie, Universität Potsdam, Karl-Liebknecht-Straße 24-25, D-14476 Potsdam-Golm, Germany
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49
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Gu L, Zeng Y, Feng Y, Jiang W, Ji W, Arandiyan H, Au C. How Do Structurally Distinct Au/α‐Fe
2
O
3
Interfaces Determine Surface OH/H
2
O reactivity, Intermediate Evolution, and Product Formation in Low‐temperature Water‐gas Shift Reaction? ChemCatChem 2019. [DOI: 10.1002/cctc.201900576] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Lingli Gu
- Key Laboratory of Mesoscopic ChemistryNanjing University Nanjing 210023 P. R. China
| | - Yiqiang Zeng
- Key Laboratory of Mesoscopic ChemistryNanjing University Nanjing 210023 P. R. China
| | - Yina Feng
- Key Laboratory of Mesoscopic ChemistryNanjing University Nanjing 210023 P. R. China
| | - Wu Jiang
- Key Laboratory of Mesoscopic ChemistryNanjing University Nanjing 210023 P. R. China
| | - Weijie Ji
- Key Laboratory of Mesoscopic ChemistryNanjing University Nanjing 210023 P. R. China
| | - Hamidreza Arandiyan
- Laboratory of Advanced Catalysis for SustainabilityThe University of Sydney NSW 2006 Australia
| | - Chak‐Tong Au
- Department of ChemistryHong Kong Baptist University Hong Kong
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50
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Dong H, Zhang L, Li L, Deng W, Hu C, Zhao ZJ, Gong J. Abundant Ce 3+ Ions in Au-CeO x Nanosheets to Enhance CO 2 Electroreduction Performance. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1900289. [PMID: 30938486 DOI: 10.1002/smll.201900289] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Revised: 03/15/2019] [Indexed: 05/03/2023]
Abstract
The electroreduction of CO2 to CO provides a potential way to solve the environmental problems caused by excess fossil fuel utilization. Loading transition metals on metal oxides is an efficient strategy for CO2 electroreduction as well as for reducing metal usage. However, it needs a great potential to overcome the energy barrier to increase CO selectivity. This paper describes how 8.7 wt% gold nanoparticles (NPs) loaded on CeOx nanosheets (NSs) with high Ce3+ concentration effectively decrease the overpotential for CO2 electroreduction. The 3.6 nm gold NPs on CeOx NSs containing 47.3% Ce3+ achieve CO faradaic efficiency of 90.1% at -0.5 V in 0.1 m KHCO3 solution. Furthermore, the CO2 electroreduction activity shows a strong relationship with the fractions of Ce3+ on Au-CeOx NSs, which has never been reported. In situ surface-enhanced infrared absorption spectroscopy shows that Au-CeOx NSs with high Ce3+ concentration promote CO2 activation and *COOH formation. Theoretical calculations also indicate that the improved performance is attributed to the enhanced *COOH formation on Au-CeOx NSs with high Ce3+ fraction.
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Affiliation(s)
- Hao Dong
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin, 300072, P. R. China
| | - Lei Zhang
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin, 300072, P. R. China
| | - Lulu Li
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin, 300072, P. R. China
| | - Wanyu Deng
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin, 300072, P. R. China
| | - Congling Hu
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin, 300072, P. R. China
| | - Zhi-Jian Zhao
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin, 300072, P. R. China
| | - Jinlong Gong
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin, 300072, P. R. China
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