601
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Chaparro Sosa AF, Kienle DF, Falatach RM, Flanagan J, Kaar JL, Schwartz DK. Stabilization of Immobilized Enzymes via the Chaperone-Like Activity of Mixed Lipid Bilayers. ACS APPLIED MATERIALS & INTERFACES 2018; 10:19504-19513. [PMID: 29767959 DOI: 10.1021/acsami.8b05523] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Biomimetic lipid bilayers represent intriguing materials for enzyme immobilization, which is critical for many biotechnological applications. Here, through the creation of mixed lipid bilayers, the retention of immobilized enzyme structures and catalytic activity are dramatically enhanced. The enhancement in the retention of enzyme structures, which correlated with an increase in enzyme activity, is observed using dynamic single-molecule (SM) fluorescence methods. The results of SM analysis specifically show that lipid bilayers composed of mixtures of 1,2-dioleoyl- sn-glycero-3-phosphocholine (DOPC) and 1,2-dioleoyl- sn-glycero-3-phospho-(1'- rac-glycerol) (DOPG) stabilize the folded state of nitroreductase (NfsB), increasing the rate of refolding relative to unfolding of enzyme molecules on the bilayer surface. Remarkably, for optimal compositions with 15-50% DOPG, over 95% of NfsB remains folded while the activity of the enzyme is increased as much as 2 times over that in solution. Within this range of DOPG, the strength of the interaction of folded and unfolded NfsB with the bilayer surface was also significantly altered, which was evident by the change in the diffusion of folded and unfolded NfsB in the bilayer. Ultimately, these findings provide direct evidence for the chaperone-like activity of mixed DOPG/DOPC lipid bilayers, which can be controlled by tuning the fraction of DOPG in the bilayer.
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Affiliation(s)
- Andres F Chaparro Sosa
- Department of Chemical and Biological Engineering , University of Colorado , Boulder , Colorado 80309 , United States
| | - Daniel F Kienle
- Department of Chemical and Biological Engineering , University of Colorado , Boulder , Colorado 80309 , United States
| | - Rebecca M Falatach
- Department of Chemical and Biological Engineering , University of Colorado , Boulder , Colorado 80309 , United States
| | - Jessica Flanagan
- Department of Chemical and Biological Engineering , University of Colorado , Boulder , Colorado 80309 , United States
| | - Joel L Kaar
- Department of Chemical and Biological Engineering , University of Colorado , Boulder , Colorado 80309 , United States
| | - Daniel K Schwartz
- Department of Chemical and Biological Engineering , University of Colorado , Boulder , Colorado 80309 , United States
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602
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Motagamwala AH, Ball MR, Dumesic JA. Microkinetic Analysis and Scaling Relations for Catalyst Design. Annu Rev Chem Biomol Eng 2018; 9:413-450. [DOI: 10.1146/annurev-chembioeng-060817-084103] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Microkinetic analysis plays an important role in catalyst design because it provides insight into the fundamental surface chemistry that controls catalyst performance. In this review, we summarize the development of microkinetic models and the inclusion of scaling relationships in these models. We discuss the importance of achieving stoichiometric and thermodynamic consistency in developing microkinetic models. We also outline how analysis of the maximum rates of elementary steps can be used to determine which transition states and adsorbed intermediates are kinetically significant, allowing the derivation of general reaction kinetics rate expressions in terms of changes in binding energies of the relevant transition states and intermediates. Through these analyses, we present how to predict optimal surface coverages and binding energies of adsorbed species, as well as the extent of potential rate improvement for a catalytic system. For systems in which the extent of potential rate improvement is small because of limitations imposed by scaling relations, different approaches, including the addition of promoters and formation of catalysts containing multiple functionalities, can be used to break the scaling relations and obtain further rate enhancement.
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Affiliation(s)
- Ali Hussain Motagamwala
- Department of Chemical and Biological Engineering, University of Wisconsin–Madison, Madison, Wisconsin 53706, USA;, ,
| | - Madelyn R. Ball
- Department of Chemical and Biological Engineering, University of Wisconsin–Madison, Madison, Wisconsin 53706, USA;, ,
| | - James A. Dumesic
- Department of Chemical and Biological Engineering, University of Wisconsin–Madison, Madison, Wisconsin 53706, USA;, ,
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603
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Flores-Rojas E, Cruz-Martínez H, Rojas-Chávez H, Tellez-Cruz MM, Reyes-Rodríguez JL, Cabañas-Moreno JG, Calaminici P, Solorza-Feria O. A Combined DFT and Experimental Investigation of Pt-Wrapped CoNi Nanoparticles for the Oxygen Reduction Reaction. Electrocatalysis (N Y) 2018. [DOI: 10.1007/s12678-018-0474-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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604
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Garza AJ, Bell AT, Head-Gordon M. Nonempirical Meta-Generalized Gradient Approximations for Modeling Chemisorption at Metal Surfaces. J Chem Theory Comput 2018; 14:3083-3090. [DOI: 10.1021/acs.jctc.8b00288] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Alejandro J. Garza
- Joint Center for Artificial Photosynthesis, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Alexis T. Bell
- Department of Chemical and Biomolecular Engineering, University of California at Berkeley, Berkeley, California 94720, United States
| | - Martin Head-Gordon
- Department of Chemistry, University of California at Berkeley, Berkeley, California 94720, United States
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605
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Falivene L, Kozlov SM, Cavallo L. Constructing Bridges between Computational Tools in Heterogeneous and Homogeneous Catalysis. ACS Catal 2018. [DOI: 10.1021/acscatal.8b00042] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Laura Falivene
- King Abdullah University of Science and Technology (KAUST), KAUST Catalysis Center (KCC), Thuwal 23955-6900, Saudi Arabia
| | - Sergey M. Kozlov
- King Abdullah University of Science and Technology (KAUST), KAUST Catalysis Center (KCC), Thuwal 23955-6900, Saudi Arabia
| | - Luigi Cavallo
- King Abdullah University of Science and Technology (KAUST), KAUST Catalysis Center (KCC), Thuwal 23955-6900, Saudi Arabia
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606
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Cohen SIA, Cukalevski R, Michaels TCT, Šarić A, Törnquist M, Vendruscolo M, Dobson CM, Buell AK, Knowles TPJ, Linse S. Distinct thermodynamic signatures of oligomer generation in the aggregation of the amyloid-β peptide. Nat Chem 2018; 10:523-531. [PMID: 29581486 PMCID: PMC5911155 DOI: 10.1038/s41557-018-0023-x] [Citation(s) in RCA: 114] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Accepted: 02/06/2018] [Indexed: 12/23/2022]
Abstract
Mapping free-energy landscapes has proved to be a powerful tool for studying reaction mechanisms. Many complex biomolecular assembly processes, however, have remained challenging to access using this approach, including the aggregation of peptides and proteins into amyloid fibrils implicated in a range of disorders. Here, we generalize the strategy used to probe free-energy landscapes in protein folding to determine the activation energies and entropies that characterize each of the molecular steps in the aggregation of the amyloid-β peptide (Aβ42), which is associated with Alzheimer's disease. Our results reveal that interactions between monomeric Aβ42 and amyloid fibrils during fibril-dependent secondary nucleation fundamentally reverse the thermodynamic signature of this process relative to primary nucleation, even though both processes generate aggregates from soluble peptides. By mapping the energetic and entropic contributions along the reaction trajectories, we show that the catalytic efficiency of Aβ42 fibril surfaces results from the enthalpic stabilization of adsorbing peptides in conformations amenable to nucleation, resulting in a dramatic lowering of the activation energy for nucleation.
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Affiliation(s)
- Samuel I A Cohen
- Department of Chemistry and Centre for Misfolding Diseases, University of Cambridge, Cambridge, UK
| | - Risto Cukalevski
- Department of Biochemistry and Structural Biology, Centre for Molecular Protein Science, Lund University, Lund, Sweden
| | - Thomas C T Michaels
- Department of Chemistry and Centre for Misfolding Diseases, University of Cambridge, Cambridge, UK
- Paulson School of Engineering and Applied Science, Harvard University, Cambridge, MA, USA
| | - Anđela Šarić
- Department of Physics and Astronomy, Institute for the Physics of Living Systems, University College London, London, UK
| | - Mattias Törnquist
- Department of Biochemistry and Structural Biology, Centre for Molecular Protein Science, Lund University, Lund, Sweden
| | - Michele Vendruscolo
- Department of Chemistry and Centre for Misfolding Diseases, University of Cambridge, Cambridge, UK
| | - Christopher M Dobson
- Department of Chemistry and Centre for Misfolding Diseases, University of Cambridge, Cambridge, UK
| | - Alexander K Buell
- Institute of Physical Biology, University of Duesseldorf, Duesseldorf, Germany
| | - Tuomas P J Knowles
- Department of Chemistry and Centre for Misfolding Diseases, University of Cambridge, Cambridge, UK.
- Cavendish Laboratory, Department of Physics, University of Cambridge, Cambridge, UK.
| | - Sara Linse
- Department of Biochemistry and Structural Biology, Centre for Molecular Protein Science, Lund University, Lund, Sweden.
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607
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Liu JC, Ma XL, Li Y, Wang YG, Xiao H, Li J. Heterogeneous Fe 3 single-cluster catalyst for ammonia synthesis via an associative mechanism. Nat Commun 2018; 9:1610. [PMID: 29686395 PMCID: PMC5913218 DOI: 10.1038/s41467-018-03795-8] [Citation(s) in RCA: 225] [Impact Index Per Article: 37.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Accepted: 03/13/2018] [Indexed: 12/20/2022] Open
Abstract
The current industrial ammonia synthesis relies on Haber–Bosch process that is initiated by the dissociative mechanism, in which the adsorbed N2 dissociates directly, and thus is limited by Brønsted–Evans–Polanyi (BEP) relation. Here we propose a new strategy that an anchored Fe3 cluster on the θ-Al2O3(010) surface as a heterogeneous catalyst for ammonia synthesis from first-principles theoretical study and microkinetic analysis. We have studied the whole catalytic mechanism for conversion of N2 to NH3 on Fe3/θ-Al2O3(010), and find that an associative mechanism, in which the adsorbed N2 is first hydrogenated to NNH, dominates over the dissociative mechanism, which we attribute to the large spin polarization, low oxidation state of iron, and multi-step redox capability of Fe3 cluster. The associative mechanism liberates the turnover frequency (TOF) for ammonia production from the limitation due to the BEP relation, and the calculated TOF on Fe3/θ-Al2O3(010) is comparable to Ru B5 site. The current industrial ammonia synthesis relies on the Haber-Bosch process that is limited by the Brønsted–Evans–Polanyi relation. Here, the authors propose a new strategy that an anchored Fe3 on θ-Al2O3(010) surface serves as a heterogeneous single cluster catalyst for ammonia synthesis from first-principles calculations and microkinetic analysis.
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Affiliation(s)
- Jin-Cheng Liu
- Department of Chemistry and Key Laboratory of Organic Optoelectronics & Molecular Engineering of Ministry of Education, Tsinghua University, Beijing, 100084, China
| | - Xue-Lu Ma
- Department of Chemistry and Key Laboratory of Organic Optoelectronics & Molecular Engineering of Ministry of Education, Tsinghua University, Beijing, 100084, China
| | - Yong Li
- Department of Chemistry and Key Laboratory of Organic Optoelectronics & Molecular Engineering of Ministry of Education, Tsinghua University, Beijing, 100084, China
| | - Yang-Gang Wang
- Department of Chemistry and Key Laboratory of Organic Optoelectronics & Molecular Engineering of Ministry of Education, Tsinghua University, Beijing, 100084, China
| | - Hai Xiao
- Department of Chemistry and Key Laboratory of Organic Optoelectronics & Molecular Engineering of Ministry of Education, Tsinghua University, Beijing, 100084, China
| | - Jun Li
- Department of Chemistry and Key Laboratory of Organic Optoelectronics & Molecular Engineering of Ministry of Education, Tsinghua University, Beijing, 100084, China.
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608
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Noh J, Back S, Kim J, Jung Y. Active learning with non- ab initio input features toward efficient CO 2 reduction catalysts. Chem Sci 2018; 9:5152-5159. [PMID: 29997867 PMCID: PMC5998799 DOI: 10.1039/c7sc03422a] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2017] [Accepted: 04/16/2018] [Indexed: 12/28/2022] Open
Abstract
In this work, we propose the use of the d-band width of the muffin-tin orbital theory (to account for the local coordination environment) plus electronegativity (to account for adsorbate renormalization) as a simple set of alternative descriptors for chemisorption which do not require ab initio calculations for large-scale first-hand screening.
In a conventional chemisorption model, the d-band center theory (augmented sometimes with the upper edge of the d-band for improved accuracy) plays a central role in predicting adsorption energies and catalytic activity as a function of the d-band center of solid surfaces, but it requires density functional calculations that can be quite costly for the purposes of large scale screening of materials. In this work, we propose to use the d-band width of the muffin-tin orbital theory (to account for the local coordination environment) plus electronegativity (to account for adsorbate renormalization) as a simple set of alternative descriptors for chemisorption which do not require ab initio calculations for large-scale first-hand screening. This pair of descriptors is then combined with machine learning methods, namely, neural network (NN) and kernel ridge regression (KRR). We show, for a toy set of 263 alloy systems, that the CO adsorption energy on the (100) facet can be predicted with a mean absolute deviation error of 0.05 eV. We achieved this high accuracy by utilizing an active learning algorithm, without which the accuracy was 0.18 eV. In addition, the results of testing the method with other facets such as (111) terrace and (211) step sites suggest that the present model is also capable of handling different coordination environments effectively. As an example of the practical application of this machine, we identified Cu3Y@Cu* as an active and cost-effective electrochemical CO2 reduction catalyst to produce CO with an overpotential ∼1 V lower than a Au catalyst.
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Affiliation(s)
- Juhwan Noh
- Graduate School of EEWS , Korea Advanced Institute of Science and Technology (KAIST) , 291 Daehakro , Daejeon 305-701 , Korea . ; Tel: +82-042-350-1712
| | - Seoin Back
- Graduate School of EEWS , Korea Advanced Institute of Science and Technology (KAIST) , 291 Daehakro , Daejeon 305-701 , Korea . ; Tel: +82-042-350-1712
| | - Jaehoon Kim
- Graduate School of EEWS , Korea Advanced Institute of Science and Technology (KAIST) , 291 Daehakro , Daejeon 305-701 , Korea . ; Tel: +82-042-350-1712
| | - Yousung Jung
- Graduate School of EEWS , Korea Advanced Institute of Science and Technology (KAIST) , 291 Daehakro , Daejeon 305-701 , Korea . ; Tel: +82-042-350-1712
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609
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Mehta P, Barboun P, Herrera FA, Kim J, Rumbach P, Go DB, Hicks JC, Schneider WF. Overcoming ammonia synthesis scaling relations with plasma-enabled catalysis. Nat Catal 2018. [DOI: 10.1038/s41929-018-0045-1] [Citation(s) in RCA: 218] [Impact Index Per Article: 36.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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610
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Singh AR, Montoya JH, Rohr BA, Tsai C, Vojvodic A, Nørskov JK. Computational Design of Active Site Structures with Improved Transition-State Scaling for Ammonia Synthesis. ACS Catal 2018. [DOI: 10.1021/acscatal.8b00106] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Aayush R. Singh
- SUNCAT Center for Interface Science and Catalysis, Department of Chemical Engineering, Stanford University, Stanford, California 94305, United States
| | - Joseph H. Montoya
- SUNCAT Center for Interface Science and Catalysis, Department of Chemical Engineering, Stanford University, Stanford, California 94305, United States
| | - Brian A. Rohr
- SUNCAT Center for Interface Science and Catalysis, Department of Chemical Engineering, Stanford University, Stanford, California 94305, United States
| | - Charlie Tsai
- SUNCAT Center for Interface Science and Catalysis, Department of Chemical Engineering, Stanford University, Stanford, California 94305, United States
| | - Aleksandra Vojvodic
- SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
- Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Jens K. Nørskov
- SUNCAT Center for Interface Science and Catalysis, Department of Chemical Engineering, Stanford University, Stanford, California 94305, United States
- SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
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611
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Siddiki SMAH, Touchy AS, Jamil MAR, Toyao T, Shimizu KI. C-Methylation of Alcohols, Ketones, and Indoles with Methanol Using Heterogeneous Platinum Catalysts. ACS Catal 2018. [DOI: 10.1021/acscatal.7b04442] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
| | - Abeda S. Touchy
- Institute for Catalysis, Hokkaido University, N-21, W-10, Sapporo 001-0021, Japan
| | - Md. A. R. Jamil
- Institute for Catalysis, Hokkaido University, N-21, W-10, Sapporo 001-0021, Japan
| | - Takashi Toyao
- Institute for Catalysis, Hokkaido University, N-21, W-10, Sapporo 001-0021, Japan
- Elements Strategy Initiative for Catalysts and Batteries, Kyoto University, Katsura, Kyoto 615-8520, Japan
| | - Ken-ichi Shimizu
- Institute for Catalysis, Hokkaido University, N-21, W-10, Sapporo 001-0021, Japan
- Elements Strategy Initiative for Catalysts and Batteries, Kyoto University, Katsura, Kyoto 615-8520, Japan
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612
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Chen B, Wang D, Duan X, Liu W, Li Y, Qian G, Yuan W, Holmen A, Zhou X, Chen D. Charge-Tuned CO Activation over a χ-Fe5C2 Fischer–Tropsch Catalyst. ACS Catal 2018. [DOI: 10.1021/acscatal.7b04370] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Bingxu Chen
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Di Wang
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Xuezhi Duan
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Wei Liu
- Nano Structural Materials Center, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Yefei Li
- Collaborative Innovation Center of Chemistry for Energy Material, Fudan University, Shanghai 200433, China
| | - Gang Qian
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Weikang Yuan
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Anders Holmen
- Department of Chemical Engineering, Norwegian University of Science and Technology, Trondheim 7491, Norway
| | - Xinggui Zhou
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - De Chen
- Department of Chemical Engineering, Norwegian University of Science and Technology, Trondheim 7491, Norway
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613
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Wodrich MD, Sawatlon B, Busch M, Corminboeuf C. On the Generality of Molecular Volcano Plots. ChemCatChem 2018. [DOI: 10.1002/cctc.201701709] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Matthew D. Wodrich
- Laboratory for Computational Molecular Design; Institute of Chemical Sciences and Engineering; Ecole Polytechnique Fédérale de Lausanne; 1015 Lausanne Switzerland
| | - Boodsarin Sawatlon
- Laboratory for Computational Molecular Design; Institute of Chemical Sciences and Engineering; Ecole Polytechnique Fédérale de Lausanne; 1015 Lausanne Switzerland
- National Centre for Computational Design and Discovery of Novel Materials (MARVEL); Ecole Polytechnique Fédérale de Lausanne; 1015 Lausanne Switzerland
| | - Michael Busch
- Laboratory for Computational Molecular Design; Institute of Chemical Sciences and Engineering; Ecole Polytechnique Fédérale de Lausanne; 1015 Lausanne Switzerland
- National Centre for Computational Design and Discovery of Novel Materials (MARVEL); Ecole Polytechnique Fédérale de Lausanne; 1015 Lausanne Switzerland
- Current Address: Department of Physics; Chalmers University of Technology; Fysikgränd 3 SE-412 96 Göteborg Sweden
| | - Clémence Corminboeuf
- Laboratory for Computational Molecular Design; Institute of Chemical Sciences and Engineering; Ecole Polytechnique Fédérale de Lausanne; 1015 Lausanne Switzerland
- National Centre for Computational Design and Discovery of Novel Materials (MARVEL); Ecole Polytechnique Fédérale de Lausanne; 1015 Lausanne Switzerland
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614
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Müller SA, Degler D, Feldmann C, Türk M, Moos R, Fink K, Studt F, Gerthsen D, Bârsan N, Grunwaldt JD. Exploiting Synergies in Catalysis and Gas Sensing using Noble Metal-Loaded Oxide Composites. ChemCatChem 2018. [DOI: 10.1002/cctc.201701545] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Sabrina A. Müller
- Institute for Chemical Technology and Polymer Chemistry (ITCP); Karlsruhe Institute of Technology (KIT); 76131 Karlsruhe Germany
| | - David Degler
- Institute of Physical and Theoretical Chemistry; University of Tübingen (EKUT); 72076 Tübingen Germany
| | - Claus Feldmann
- Institute of Inorganic Chemistry (AOC); Karlsruhe Institute of Technology (KIT); 76131 Karlsruhe Germany
| | - Michael Türk
- Institute for Technical Thermodynamics and Refrigeration (ITTK); Karlsruhe Institute of Technology (KIT); 76131 Karlsruhe Germany
| | - Ralf Moos
- Department of Functional Materials; University of Bayreuth; 95447 Bayreuth Germany
| | - Karin Fink
- Institute of Nanotechnology (INT); Karlsruhe Institute of Technology (KIT); 76344 Eggenstein-Leopoldshafen Germany
| | - Felix Studt
- Institute for Chemical Technology and Polymer Chemistry (ITCP); Karlsruhe Institute of Technology (KIT); 76131 Karlsruhe Germany
- Institute of Catalysis Research and Technology (IKFT); Karlsruhe Institute of Technology (KIT); 76344 Eggenstein-Leopoldshafen Germany
| | - Dagmar Gerthsen
- Laboratory for Electron Microscopy (LEM); Karlsruhe Institute of Technology (KIT); 76131 Karlsruhe Germany
| | - Nicolae Bârsan
- Institute of Physical and Theoretical Chemistry; University of Tübingen (EKUT); 72076 Tübingen Germany
| | - Jan-Dierk Grunwaldt
- Institute for Chemical Technology and Polymer Chemistry (ITCP); Karlsruhe Institute of Technology (KIT); 76131 Karlsruhe Germany
- Institute of Catalysis Research and Technology (IKFT); Karlsruhe Institute of Technology (KIT); 76344 Eggenstein-Leopoldshafen Germany
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615
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Hersbach TJP, Kortlever R, Lehtimäki M, Krtil P, Koper MTM. Local structure and composition of PtRh nanoparticles produced through cathodic corrosion. Phys Chem Chem Phys 2018; 19:10301-10308. [PMID: 28393941 DOI: 10.1039/c7cp01059a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Alloy nanoparticles fulfill an important role in catalysis. As such, producing them in a simple and clean way is much desired. A promising alloy nanoparticle production method is cathodic corrosion, which generates particles by applying an AC voltage to an alloy electrode. However, this harsh AC potential program might affect the final elemental distribution of the nanoparticles. In this work, we address this issue by characterizing the time that is required to create 1 μmol of Rh, Pt12Rh88, Pt55Rh45 and Pt nanoparticles under various applied potentials. The corrosion time measurements are complemented by structural characterization through transmission electron microscopy, X-ray diffraction and X-ray absorption spectroscopy. The corrosion times indicate that platinum and rhodium corrode at different rates and that the cathodic corrosion rates of the alloys are dominated by platinum. In addition, the structure-sensitive techniques reveal that the elemental distributions of the created alloy nanoparticles indeed exhibit small degrees of elemental segregation. These results indicate that the atomic alloy structure is not always preserved during cathodic corrosion.
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Affiliation(s)
- Thomas J P Hersbach
- Leiden Institure of Chemistry, Leiden University, PO Box 9502, 2300 RA Leiden, The Netherlands.
| | - Ruud Kortlever
- Leiden Institure of Chemistry, Leiden University, PO Box 9502, 2300 RA Leiden, The Netherlands.
| | - Matti Lehtimäki
- Department of Electrocatalysis, J. Heyrovský Institute of Physical Chemistry, Academy of Sciences of the Czech Republic, Dolejškova 3, 18223 Prague, Czech Republic
| | - Petr Krtil
- Department of Electrocatalysis, J. Heyrovský Institute of Physical Chemistry, Academy of Sciences of the Czech Republic, Dolejškova 3, 18223 Prague, Czech Republic
| | - Marc T M Koper
- Leiden Institure of Chemistry, Leiden University, PO Box 9502, 2300 RA Leiden, The Netherlands.
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616
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Meier M, Jakub Z, Balajka J, Hulva J, Bliem R, Thakur PK, Lee TL, Franchini C, Schmid M, Diebold U, Allegretti F, Duncan DA, Parkinson GS. Probing the geometry of copper and silver adatoms on magnetite: quantitative experiment versus theory. NANOSCALE 2018; 10:2226-2230. [PMID: 29334395 PMCID: PMC5795485 DOI: 10.1039/c7nr07319d] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/01/2017] [Accepted: 12/05/2017] [Indexed: 06/07/2023]
Abstract
Accurately modelling the structure of a catalyst is a fundamental prerequisite for correctly predicting reaction pathways, but a lack of clear experimental benchmarks makes it difficult to determine the optimal theoretical approach. Here, we utilize the normal incidence X-ray standing wave (NIXSW) technique to precisely determine the three dimensional geometry of Ag1 and Cu1 adatoms on Fe3O4(001). Both adatoms occupy bulk-continuation cation sites, but with a markedly different height above the surface (0.43 ± 0.03 Å (Cu1) and 0.96 ± 0.03 Å (Ag1)). HSE-based calculations accurately predict the experimental geometry, but the more common PBE + U and PBEsol + U approaches perform poorly.
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Affiliation(s)
- Matthias Meier
- University of Vienna , Faculty of Physics and Center for Computational Materials Science , 1090 Vienna , Austria
- Institute of Applied Physics , TU Wien , 1040 Vienna , Austria
| | - Zdeněk Jakub
- Institute of Applied Physics , TU Wien , 1040 Vienna , Austria
| | - Jan Balajka
- Institute of Applied Physics , TU Wien , 1040 Vienna , Austria
| | - Jan Hulva
- Institute of Applied Physics , TU Wien , 1040 Vienna , Austria
| | - Roland Bliem
- Institute of Applied Physics , TU Wien , 1040 Vienna , Austria
| | - Pardeep K. Thakur
- Diamond Light Source , Harwell Science and Innovation Campus , Didcot , OX11 0QX UK .
| | - Tien-Lin Lee
- Diamond Light Source , Harwell Science and Innovation Campus , Didcot , OX11 0QX UK .
| | - Cesare Franchini
- University of Vienna , Faculty of Physics and Center for Computational Materials Science , 1090 Vienna , Austria
| | - Michael Schmid
- Institute of Applied Physics , TU Wien , 1040 Vienna , Austria
| | - Ulrike Diebold
- Institute of Applied Physics , TU Wien , 1040 Vienna , Austria
| | - Francesco Allegretti
- Physics Department E20 , Technical University of Munich , 85748 Garching , Germany
| | - David A. Duncan
- Diamond Light Source , Harwell Science and Innovation Campus , Didcot , OX11 0QX UK .
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617
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Cho M, Song JT, Back S, Jung Y, Oh J. The Role of Adsorbed CN and Cl on an Au Electrode for Electrochemical CO2 Reduction. ACS Catal 2018. [DOI: 10.1021/acscatal.7b03449] [Citation(s) in RCA: 75] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Minhyung Cho
- Graduate
School of Energy, Environment, Water, and Sustainability (EEWS), Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Jun Tae Song
- Graduate
School of Energy, Environment, Water, and Sustainability (EEWS), Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
- KAIST
Institute for NanoCentury, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Seoin Back
- Graduate
School of Energy, Environment, Water, and Sustainability (EEWS), Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Yousung Jung
- Graduate
School of Energy, Environment, Water, and Sustainability (EEWS), Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
- KAIST
Institute for NanoCentury, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Jihun Oh
- Graduate
School of Energy, Environment, Water, and Sustainability (EEWS), Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
- KAIST
Institute for NanoCentury, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
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618
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Verga LG, Aarons J, Sarwar M, Thompsett D, Russell AE, Skylaris CK. DFT calculation of oxygen adsorption on platinum nanoparticles: coverage and size effects. Faraday Discuss 2018; 208:497-522. [DOI: 10.1039/c7fd00218a] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
DFT calculations are used to simultaneously explore the effects of nanoparticle size and coverage for O adsorption on Pt nanoparticles.
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Affiliation(s)
- L. G. Verga
- Department of Chemistry
- University of Southampton
- Southampton SO17 1BJ
- UK
| | - J. Aarons
- Department of Chemistry
- University of Southampton
- Southampton SO17 1BJ
- UK
| | - M. Sarwar
- Johnson Matthey Technology Centre
- Reading
- UK RG4 9NH
| | - D. Thompsett
- Johnson Matthey Technology Centre
- Reading
- UK RG4 9NH
| | - A. E. Russell
- Department of Chemistry
- University of Southampton
- Southampton SO17 1BJ
- UK
| | - C.-K. Skylaris
- Department of Chemistry
- University of Southampton
- Southampton SO17 1BJ
- UK
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619
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Fung V, Polo-Garzon F, Wu Z, Jiang DE. Exploring perovskites for methane activation from first principles. Catal Sci Technol 2018. [DOI: 10.1039/c7cy01791j] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The compositional diversity of the ABO3 perovskites was explored to establish the correlation of key steps of methane activation with descriptors.
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Affiliation(s)
- Victor Fung
- Department of Chemistry
- University of California
- Riverside
- USA
| | - Felipe Polo-Garzon
- Chemical Sciences Division and Center for Nanophase Materials Sciences
- Oak Ridge National Laboratory
- Oak Ridge
- USA
| | - Zili Wu
- Chemical Sciences Division and Center for Nanophase Materials Sciences
- Oak Ridge National Laboratory
- Oak Ridge
- USA
| | - De-en Jiang
- Department of Chemistry
- University of California
- Riverside
- USA
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620
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Zhang L, Zhao ZJ, Wang T, Gong J. Nano-designed semiconductors for electro- and photoelectro-catalytic conversion of carbon dioxide. Chem Soc Rev 2018; 47:5423-5443. [DOI: 10.1039/c8cs00016f] [Citation(s) in RCA: 133] [Impact Index Per Article: 22.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
This review describes a systematic overview on rational design of semiconductor catalysts for electro- and photoelectro-chemical CO2 conversion.
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Affiliation(s)
- Lei Zhang
- Key Laboratory for Green Chemical Technology of Ministry of Education
- School of Chemical Engineering and Technology
- Tianjin University
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Tianjin 300072
| | - Zhi-Jian Zhao
- Key Laboratory for Green Chemical Technology of Ministry of Education
- School of Chemical Engineering and Technology
- Tianjin University
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Tianjin 300072
| | - Tuo Wang
- Key Laboratory for Green Chemical Technology of Ministry of Education
- School of Chemical Engineering and Technology
- Tianjin University
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Tianjin 300072
| | - Jinlong Gong
- Key Laboratory for Green Chemical Technology of Ministry of Education
- School of Chemical Engineering and Technology
- Tianjin University
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Tianjin 300072
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621
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Esposito DV. Membrane-Coated Electrocatalysts—An Alternative Approach To Achieving Stable and Tunable Electrocatalysis. ACS Catal 2017. [DOI: 10.1021/acscatal.7b03374] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Daniel V. Esposito
- Department of Chemical Engineering,
Lenfest Center for Sustainable Energy, Columbia University in the City of New York, 500 W. 120th Street, New York, New York 10027, United States
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622
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Liu C, Tranca I, van Santen RA, Hensen EJM, Pidko EA. Scaling Relations for Acidity and Reactivity of Zeolites. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2017; 121:23520-23530. [PMID: 29142616 PMCID: PMC5677757 DOI: 10.1021/acs.jpcc.7b08176] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Revised: 10/02/2017] [Indexed: 05/22/2023]
Abstract
Zeolites are widely applied as solid acid catalysts in various technological processes. In this work we have computationally investigated how catalytic reactivity scales with acidity for a range of zeolites with different topologies and chemical compositions. We found that straightforward correlations are limited to zeolites with the same topology. The adsorption energies of bases such as carbon monoxide (CO), acetonitrile (CH3CN), ammonia (NH3), trimethylamine (N(CH3)3), and pyridine (C5H5N) give the same trend of acid strength for FAU zeolites with varying composition. Crystal orbital Hamilton populations (COHP) analysis provides a detailed molecular orbital picture of adsorbed base molecules on the Brønsted acid sites (BAS). Bonding is dominated by strong σ donation from guest molecules to the BAS for the adsorbed CO and CH3CN complexes. An electronic descriptor of acid strength is constructed based on the bond order calculations, which is an intrinsic parameter rather than adsorption energy that contains additional contributions due to secondary effects such as van der Waals interactions with the zeolite walls. The bond order parameter derived for the CH3CN adsorption complex represents a useful descriptor for the intrinsic acid strength of FAU zeolites. For FAU zeolites the activation energy for the conversion of π-adsorbed isobutene into alkoxy species correlates well with the acid strength determined by the NH3 adsorption energies. Other zeolites such as MFI and CHA do not follow the scaling relations obtained for FAU; we ascribe this to the different van der Waals interactions and steric effects induced by zeolite framework topology.
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Affiliation(s)
- Chong Liu
- Inorganic
Materials Chemistry Group, Schuit Institute of Catalysis, and Institute for
Complex Molecular Systems, Eindhoven University
of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Ionut Tranca
- Inorganic
Materials Chemistry Group, Schuit Institute of Catalysis, and Institute for
Complex Molecular Systems, Eindhoven University
of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Rutger A. van Santen
- Inorganic
Materials Chemistry Group, Schuit Institute of Catalysis, and Institute for
Complex Molecular Systems, Eindhoven University
of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Emiel J. M. Hensen
- Inorganic
Materials Chemistry Group, Schuit Institute of Catalysis, and Institute for
Complex Molecular Systems, Eindhoven University
of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Evgeny A. Pidko
- Inorganic
Materials Chemistry Group, Schuit Institute of Catalysis, and Institute for
Complex Molecular Systems, Eindhoven University
of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
- ITMO
University, Lomonosova
9, St. Petersburg, 191002, Russia
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623
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Zhao Y, Wu Y, Liu J, Wang F. Dependent Relationship between Quantitative Lattice Contraction and Enhanced Oxygen Reduction Activity over Pt-Cu Alloy Catalysts. ACS APPLIED MATERIALS & INTERFACES 2017; 9:35740-35748. [PMID: 28976727 DOI: 10.1021/acsami.7b08437] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Lattice contraction has been regarded as an important factor influencing oxygen reduction reaction (ORR) activity of Pt-based alloys. However, the relationship between quantitative lattice contraction and ORR activity has rarely been reported. Herein, using Pt-Cu alloy nanoparticles (NPs) with similar particle sizes but different compositions as examples, we investigated the relationship between quantitative lattice contraction and ORR activity by defining the shrinking percentage of Pt-Pt bond distance as lattice contraction percentage. The results show that the ORR activities of Pt-Cu alloy NPs exhibit a well-defined volcano-type dependent relationship toward the lattice contraction percentage. The dependent correlation can be explained by the Sabatier principle. This study not only proposes a valid descriptor to bridge the activity and atomic composition but also provides a reference for understanding the composition-structure-activity relationship of Pt-based alloys.
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Affiliation(s)
- Yige Zhao
- State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Electrochemical Process and Technology for Materials, Beijing University of Chemical Technology , Beijing 100029, China
| | - Yijun Wu
- State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Electrochemical Process and Technology for Materials, Beijing University of Chemical Technology , Beijing 100029, China
| | - Jingjun Liu
- State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Electrochemical Process and Technology for Materials, Beijing University of Chemical Technology , Beijing 100029, China
| | - Feng Wang
- State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Electrochemical Process and Technology for Materials, Beijing University of Chemical Technology , Beijing 100029, China
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624
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Migliorini D, Chadwick H, Nattino F, Gutiérrez-González A, Dombrowski E, High EA, Guo H, Utz AL, Jackson B, Beck RD, Kroes GJ. Surface Reaction Barriometry: Methane Dissociation on Flat and Stepped Transition-Metal Surfaces. J Phys Chem Lett 2017; 8:4177-4182. [PMID: 28817773 PMCID: PMC5592645 DOI: 10.1021/acs.jpclett.7b01905] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Accepted: 08/17/2017] [Indexed: 05/20/2023]
Abstract
Accurately simulating heterogeneously catalyzed reactions requires reliable barriers for molecules reacting at defects on metal surfaces, such as steps. However, first-principles methods capable of computing these barriers to chemical accuracy have yet to be demonstrated. We show that state-resolved molecular beam experiments combined with ab initio molecular dynamics using specific reaction parameter density functional theory (SRP-DFT) can determine the molecule-metal surface interaction with the required reliability. Crucially, SRP-DFT exhibits transferability: the functional devised for methane reacting on a flat (111) face of Pt (and Ni) also describes its reaction on stepped Pt(211) with chemical accuracy. Our approach can help bridge the materials gap between fundamental surface science studies on regular surfaces and heterogeneous catalysis in which defected surfaces are important.
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Affiliation(s)
- Davide Migliorini
- Leiden
Institute of Chemistry, Gorlaeus Laboratories, Leiden University, P.O. Box 9502, 2300 RA Leiden, The Netherlands
| | - Helen Chadwick
- Laboratoire
de Chimie Physique Moléculaire, Ecole
Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
| | - Francesco Nattino
- Leiden
Institute of Chemistry, Gorlaeus Laboratories, Leiden University, P.O. Box 9502, 2300 RA Leiden, The Netherlands
| | - Ana Gutiérrez-González
- Laboratoire
de Chimie Physique Moléculaire, Ecole
Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
| | - Eric Dombrowski
- Department
of Chemistry and W. M. Keck Foundation Laboratory for Materials Chemistry Tufts University, Medford, Massachusetts 02155, United States
| | - Eric A. High
- Department
of Chemistry and W. M. Keck Foundation Laboratory for Materials Chemistry Tufts University, Medford, Massachusetts 02155, United States
| | - Han Guo
- Department
of Chemistry, University of Massachusetts, Amherst, Massachusetts 01003, United States
| | - Arthur L. Utz
- Department
of Chemistry and W. M. Keck Foundation Laboratory for Materials Chemistry Tufts University, Medford, Massachusetts 02155, United States
| | - Bret Jackson
- Department
of Chemistry, University of Massachusetts, Amherst, Massachusetts 01003, United States
| | - Rainer D. Beck
- Laboratoire
de Chimie Physique Moléculaire, Ecole
Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
- E-mail:
| | - Geert-Jan Kroes
- Leiden
Institute of Chemistry, Gorlaeus Laboratories, Leiden University, P.O. Box 9502, 2300 RA Leiden, The Netherlands
- E-mail:
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625
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Praserthdam S, Balbuena PB. Performance evaluation of catalysts in the dry reforming reaction of methane via the ratings concept. REACTION KINETICS MECHANISMS AND CATALYSIS 2017. [DOI: 10.1007/s11144-017-1241-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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626
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Liang Y, Chen Z, Yao W, Wang P, Yu S, Wang X. Decorating of Ag and CuO on Cu Nanoparticles for Enhanced High Catalytic Activity to the Degradation of Organic Pollutants. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:7606-7614. [PMID: 28723097 DOI: 10.1021/acs.langmuir.7b01540] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Metal/semiconductor composites are promising catalysts with superior catalytic activity. In this work, a Cu/CuO-Ag composite with structure that consisted of Ag and CuO nanoparticles (NPs) decorated on the surface of Cu were fabricated via a facile in situ method. With characterization by transmission electron microscopy (TEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), energy dispersive X-ray spectroscopy (EDX), and inductively coupled plasma atomic emission spectrometry (ICP-AES), the structure and components of the Cu/CuO-Ag composite were well-defined. The Cu/CuO-Ag composite exhibited superior catalytic activities for the reduction of 4-nitrophenol (4-NP) in the presence of NaBH4 with just a trace amount of Ag NPs (1.28 wt %). The reduction reaction is completed in 75 s with an apparent rate constant kapp of 4.60 × 10-2 s-1. The Cu/CuO-Ag composite also showed excellent durable catalytic stability, as no significant activity loss was detected in the consecutive five reaction runs. With the aid of the Sabatier principle and volcano plot, the opportune chemical adsorption energy of the reagent 4-NP on the Cu/CuO-Ag composite was inferred to be the key to its high reaction rate. The CuO NPs as a semiconductor with narrow band gap also could help the Cu/CuO-Ag composite to capture the electrons/hydride ions and increase opportunities for 4-NP to be reduced. Furthermore, the Cu/CuO-Ag composite exhibited outstanding activity on the oxidative degradation of methylene blue (MB). This work enriched the bimetal/semiconductor catalyst system and supplied new insight into the catalysis mechanism.
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Affiliation(s)
- Yu Liang
- College of Environmental Science and Engineering, North China Electric Power University , Beijing 102206, PR China
| | - Zhe Chen
- College of Environmental Science and Engineering, North China Electric Power University , Beijing 102206, PR China
| | - Wen Yao
- College of Environmental Science and Engineering, North China Electric Power University , Beijing 102206, PR China
| | - Pengyi Wang
- College of Environmental Science and Engineering, North China Electric Power University , Beijing 102206, PR China
| | - Shujun Yu
- College of Environmental Science and Engineering, North China Electric Power University , Beijing 102206, PR China
| | - Xiangke Wang
- College of Environmental Science and Engineering, North China Electric Power University , Beijing 102206, PR China
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627
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Jones CW. Advice for emerging researchers on research program development: A personal case study. AIChE J 2017. [DOI: 10.1002/aic.15835] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Christopher W. Jones
- School of Chemical & Biomolecular EngineeringGeorgia Institute of TechnologyAtlanta GA30332‐0100
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628
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Costentin C, Savéant JM. Catalysis of Electrochemical Reactions by Surface-Active Sites: Analyzing the Occurrence and Significance of Volcano Plots by Cyclic Voltammetry. ACS Catal 2017. [DOI: 10.1021/acscatal.7b01529] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Cyrille Costentin
- Sorbonne Paris Cité,
Laboratoire d’Electrochimie Moléculaire, Unité
Mixte de Recherche Université−CNRS 7591, Bâtiment
Lavoisier, Université Paris Diderot, 15 rue Jean de Baïf, 75205 Paris Cedex 13, France
| | - Jean-Michel Savéant
- Sorbonne Paris Cité,
Laboratoire d’Electrochimie Moléculaire, Unité
Mixte de Recherche Université−CNRS 7591, Bâtiment
Lavoisier, Université Paris Diderot, 15 rue Jean de Baïf, 75205 Paris Cedex 13, France
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629
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Yao X, Liu J, Wang W, Lu F, Wang W. Origin of OER catalytic activity difference of oxygen-deficient perovskites A2Mn2O5(A = Ca, Sr): A theoretical study. J Chem Phys 2017; 146:224703. [DOI: 10.1063/1.4985157] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Xiaolong Yao
- Department of Electronics and Key Laboratory of Photo-Electronic Thin Film Devices and Technology of Tianjin, Nankai University, Tianjin 300071, China
| | - Jieyu Liu
- Department of Electronics and Key Laboratory of Photo-Electronic Thin Film Devices and Technology of Tianjin, Nankai University, Tianjin 300071, China
| | - Weihua Wang
- Department of Electronics and Key Laboratory of Photo-Electronic Thin Film Devices and Technology of Tianjin, Nankai University, Tianjin 300071, China
| | - Feng Lu
- Department of Electronics and Key Laboratory of Photo-Electronic Thin Film Devices and Technology of Tianjin, Nankai University, Tianjin 300071, China
| | - Weichao Wang
- Department of Electronics and Key Laboratory of Photo-Electronic Thin Film Devices and Technology of Tianjin, Nankai University, Tianjin 300071, China
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630
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Mao Y, Wang H, Hu P. Theory and applications of surface micro‐kinetics in the rational design of catalysts using density functional theory calculations. WILEY INTERDISCIPLINARY REVIEWS-COMPUTATIONAL MOLECULAR SCIENCE 2017. [DOI: 10.1002/wcms.1321] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Yu Mao
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis and Centre for Computational ChemistryEast China University of Science and TechnologyShanghaiChina
- School of Chemistry and Chemical EngineeringThe Queen's University of BelfastBelfastUK
| | - Hai‐Feng Wang
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis and Centre for Computational ChemistryEast China University of Science and TechnologyShanghaiChina
| | - P. Hu
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis and Centre for Computational ChemistryEast China University of Science and TechnologyShanghaiChina
- School of Chemistry and Chemical EngineeringThe Queen's University of BelfastBelfastUK
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631
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Pidko EA. Toward the Balance between the Reductionist and Systems Approaches in Computational Catalysis: Model versus Method Accuracy for the Description of Catalytic Systems. ACS Catal 2017. [DOI: 10.1021/acscatal.7b00290] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Evgeny A. Pidko
- Theoretical Chemistry Group, ITMO University, Lomonosova str. 9, St. Petersburg 191002, Russia
- Inorganic Materials
Chemistry Group, Schuit Institute of Catalysis, and Institute for Complex Molecular Systems, Eindhoven University of Technology,
P.O. Box 513, 5600 MB Eindhoven, The Netherlands
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632
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Fung V, Tao FF, Jiang DE. General Structure-Reactivity Relationship for Oxygen on Transition-Metal Oxides. J Phys Chem Lett 2017; 8:2206-2211. [PMID: 28468494 DOI: 10.1021/acs.jpclett.7b00861] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Despite many recent developments in designing and screening catalysts for improved performance, transition-metal oxides continue to prove to be challenging due to the myriad inherent complexities of the systems and the possible morphologies that they can exhibit. Herein we propose a structural descriptor, the adjusted coordination number (ACN), which can generalize the reactivity of the oxygen sites over the many possible surface facets and defects of a transition-metal oxide. We demonstrate the strong correlation of this geometric descriptor with the electronic and energetic properties of the active sites on five facets of four transition-metal oxides. We then use the structural descriptor to predict C-H activation energies to show the great potential of using ACN for the prediction of catalytic performance. This study presents a first look into quantifying the relation between active site structure and reactivity of transition-metal-oxide catalysts.
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Affiliation(s)
- Victor Fung
- Department of Chemistry, University of California , Riverside, California 92521, United States
| | - Franklin Feng Tao
- Department of Chemical and Petroleum Engineering and Department of Chemistry, University of Kansas , Lawrence, Kansas 66045, United States
| | - De-En Jiang
- Department of Chemistry, University of California , Riverside, California 92521, United States
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633
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Chang F, Guo J, Wu G, Wang P, Yu P, Chen P. Influence of alkali metal amides on the catalytic activity of manganese nitride for ammonia decomposition. Catal Today 2017. [DOI: 10.1016/j.cattod.2016.09.010] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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634
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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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635
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Fields M, Tsai C, Chen LD, Abild-Pedersen F, Nørskov JK, Chan K. Scaling Relations for Adsorption Energies on Doped Molybdenum Phosphide Surfaces. ACS Catal 2017. [DOI: 10.1021/acscatal.6b03403] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Meredith Fields
- SUNCAT
Center for Interface Science and Catalysis, Department of Chemical
Engineering, Stanford University, Stanford, California 94305, United States
| | - Charlie Tsai
- SUNCAT
Center for Interface Science and Catalysis, Department of Chemical
Engineering, Stanford University, Stanford, California 94305, United States
| | - Leanne D. Chen
- SUNCAT
Center for Interface Science and Catalysis, Department of Chemical
Engineering, Stanford University, Stanford, California 94305, United States
| | - Frank Abild-Pedersen
- SUNCAT
Center for Interface Science and Catalysis, Department of Chemical
Engineering, Stanford University, Stanford, California 94305, United States
- SUNCAT
Center
for Interface Science and Catalysis, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Jens K. Nørskov
- SUNCAT
Center for Interface Science and Catalysis, Department of Chemical
Engineering, Stanford University, Stanford, California 94305, United States
- SUNCAT
Center
for Interface Science and Catalysis, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Karen Chan
- SUNCAT
Center for Interface Science and Catalysis, Department of Chemical
Engineering, Stanford University, Stanford, California 94305, United States
- SUNCAT
Center
for Interface Science and Catalysis, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
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636
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Reuter K, Plaisance CP, Oberhofer H, Andersen M. Perspective: On the active site model in computational catalyst screening. J Chem Phys 2017; 146:040901. [DOI: 10.1063/1.4974931] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Karsten Reuter
- Chair for Theoretical Chemistry and Catalysis Research Center, Technische Universität München, Lichtenbergstr. 4, D-85747 Garching,
Germany
| | - Craig P. Plaisance
- Chair for Theoretical Chemistry and Catalysis Research Center, Technische Universität München, Lichtenbergstr. 4, D-85747 Garching,
Germany
| | - Harald Oberhofer
- Chair for Theoretical Chemistry and Catalysis Research Center, Technische Universität München, Lichtenbergstr. 4, D-85747 Garching,
Germany
| | - Mie Andersen
- Chair for Theoretical Chemistry and Catalysis Research Center, Technische Universität München, Lichtenbergstr. 4, D-85747 Garching,
Germany
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637
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Dhanda R, Kidwai M. Graphene Supported RuNi Alloy Nanoparticles as Highly Efficient and Durable Catalyst for Hydrolytic Dehydrogenation-Hydrogenation Reactions. ChemistrySelect 2017. [DOI: 10.1002/slct.201601350] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Ritu Dhanda
- Green chemistry research laboratory; Department of Chemistry, University of Delhi; North campus New Delhi- 110007 India
| | - Mazaahir Kidwai
- Green chemistry research laboratory; Department of Chemistry, University of Delhi; North campus New Delhi- 110007 India
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638
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Lanzafame P, Perathoner S, Centi G, Gross S, Hensen EJM. Grand challenges for catalysis in the Science and Technology Roadmap on Catalysis for Europe: moving ahead for a sustainable future. Catal Sci Technol 2017. [DOI: 10.1039/c7cy01067b] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This perspective discusses the general concepts that will guide future catalysis and related grand challenges based on the Science and Technology Roadmap on Catalysis for Europe prepared by the European Cluster on Catalysis.
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Affiliation(s)
- P. Lanzafame
- Dept.s ChiBioFarAm and MIFT – Chimica Industriale
- University of Messina (Italy)
- INSTM/CASPE and ERIC aisbl
- 98166 Messina
- Italy
| | - S. Perathoner
- Dept.s ChiBioFarAm and MIFT – Chimica Industriale
- University of Messina (Italy)
- INSTM/CASPE and ERIC aisbl
- 98166 Messina
- Italy
| | - G. Centi
- Dept.s ChiBioFarAm and MIFT – Chimica Industriale
- University of Messina (Italy)
- INSTM/CASPE and ERIC aisbl
- 98166 Messina
- Italy
| | - S. Gross
- Istituto di Chimica della Materia Condensata e di Tecnologie per l'Energia
- ICMATE-CNR
- Dipartimento di Scienze Chimiche
- Università degli Studi di Padova
- 35131 Padova
| | - E. J. M. Hensen
- Laboratory of Inorganic Materials Chemistry
- Eindhoven University of Technology
- 5600 MB Eindhoven
- The Netherlands
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639
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Pegis M, McKeown BA, Kumar N, Lang K, Wasylenko D, Zhang XP, Raugei S, Mayer JM. Homogenous Electrocatalytic Oxygen Reduction Rates Correlate with Reaction Overpotential in Acidic Organic Solutions. ACS CENTRAL SCIENCE 2016; 2:850-856. [PMID: 27924314 PMCID: PMC5126711 DOI: 10.1021/acscentsci.6b00261] [Citation(s) in RCA: 127] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Indexed: 05/12/2023]
Abstract
Improved electrocatalysts for the oxygen reduction reaction (ORR) are critical for the advancement of fuel cell technologies. Herein, we report a series of 11 soluble iron porphyrin ORR electrocatalysts that possess turnover frequencies (TOFs) from 3 s-1 to an unprecedented value of 2.2 × 106 s-1. These TOFs correlate with the ORR overpotential, which can be modulated by changing the E1/2 of the catalyst using different ancillary ligands, by changing the solvent and solution acidity, and by changing the catalyst's protonation state. The overpotential is well-defined for these homogeneous electrocatalysts by the E1/2 of the catalyst and the proton activity of the solution. This is the first such correlation for homogeneous ORR electrocatalysis, and it demonstrates that the remarkably fast TOFs are a consequence of high overpotential. The correlation with overpotential is surprising since the turnover limiting steps involve oxygen binding and protonation, as opposed to turnover limiting electron transfer commonly found in Tafel analysis of heterogeneous ORR materials. Computational studies show that the free energies for oxygen binding to the catalyst and for protonation of the superoxide complex are in general linearly related to the catalyst E1/2, and that this is the origin of the overpotential correlations. This analysis thus provides detailed understanding of the ORR barriers. The best catalysts involve partial decoupling of the influence of the second coordination sphere from the properties of the metal center, which is suggested as new molecular design strategy to avoid the limitations of the traditional scaling relationships for these catalysts.
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Affiliation(s)
- Michael
L. Pegis
- Department
of Chemistry, Yale University, New Haven, Connecticut 06520, United States
| | - Bradley A. McKeown
- Department
of Chemistry, Yale University, New Haven, Connecticut 06520, United States
| | - Neeraj Kumar
- Pacific
Northwest National Laboratory (PNNL), Richland, Washington 99352, United States
| | - Kai Lang
- Department
of Chemistry, University of South Florida, Tampa, Florida 33620, United States
| | - Derek
J. Wasylenko
- Department
of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - X. Peter Zhang
- Department
of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
| | - Simone Raugei
- Pacific
Northwest National Laboratory (PNNL), Richland, Washington 99352, United States
| | - James M. Mayer
- Department
of Chemistry, Yale University, New Haven, Connecticut 06520, United States
- E-mail:
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640
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Avanesian T, Gusmão GS, Christopher P. Mechanism of CO2 reduction by H2 on Ru(0 0 0 1) and general selectivity descriptors for late-transition metal catalysts. J Catal 2016. [DOI: 10.1016/j.jcat.2016.03.016] [Citation(s) in RCA: 75] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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641
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Kubas A, Berger D, Oberhofer H, Maganas D, Reuter K, Neese F. Surface Adsorption Energetics Studied with "Gold Standard" Wave-Function-Based Ab Initio Methods: Small-Molecule Binding to TiO 2(110). J Phys Chem Lett 2016; 7:4207-4212. [PMID: 27690453 DOI: 10.1021/acs.jpclett.6b01845] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Coupled-cluster theory with single, double, and perturbative triple excitations (CCSD(T)) is widely considered to be the "gold standard" of ab initio quantum chemistry. Using the domain-based pair natural orbital local correlation concept (DLPNO-CCSD(T)), these calculations can be performed on systems with hundreds of atoms at an accuracy of ∼99.9% of the canonical CCSD(T) method. This allows for ab initio calculations providing reference adsorption energetics at solid surfaces with an accuracy approaching 1 kcal/mol. This is an invaluable asset, not least for the assessment of density functional theory (DFT) as the prevalent approach for large-scale production calculations in energy or catalysis applications. Here we use DLPNO-CCSD(T) with embedded cluster models to compute entire adsorbate potential energy surfaces for the binding of a set of prototypical closed-shell molecules (H2O, NH3, CH4, CH3OH, CO2) to the rutile TiO2(110) surface. The DLPNO-CCSD(T) calculations show excellent agreement with available experimental data, even for the "infamous" challenge of correctly predicting the CO2 adsorption geometry. The numerical efficiency of the approach is within 1 order of magnitude of hybrid-level DFT calculations, hence blurring the borders between reference and production technique.
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Affiliation(s)
- Adam Kubas
- Max Planck Institute for Chemical Energy Conversion , Stiftstr. 34-36, 45470 Mülheim an der Ruhr, Germany
| | - Daniel Berger
- Chair for Theoretical Chemistry and Catalysis Research Center, Technische Universität München , Lichtenbergstr. 4, 85747 Garching, Germany
| | - Harald Oberhofer
- Chair for Theoretical Chemistry and Catalysis Research Center, Technische Universität München , Lichtenbergstr. 4, 85747 Garching, Germany
| | - Dimitrios Maganas
- Max Planck Institute for Chemical Energy Conversion , Stiftstr. 34-36, 45470 Mülheim an der Ruhr, Germany
| | - Karsten Reuter
- Chair for Theoretical Chemistry and Catalysis Research Center, Technische Universität München , Lichtenbergstr. 4, 85747 Garching, Germany
| | - Frank Neese
- Max Planck Institute for Chemical Energy Conversion , Stiftstr. 34-36, 45470 Mülheim an der Ruhr, Germany
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642
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Chen JF, Mao Y, Wang HF, Hu P. Reversibility Iteration Method for Understanding Reaction Networks and for Solving Microkinetics in Heterogeneous Catalysis. ACS Catal 2016. [DOI: 10.1021/acscatal.6b02405] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Jian-Fu Chen
- Key
Laboratory for Advanced Materials, Research Institute of Industrial
Catalysis and Centre for Computational Chemistry, East China University of Science and Technology, 130 Meilong Road, Shanghai, P. R. China 200237
| | - Yu Mao
- School
of Chemistry and Chemical Engineering, The Queen’s University of Belfast, Belfast BT9 5AG, U.K
| | - Hai-Feng Wang
- Key
Laboratory for Advanced Materials, Research Institute of Industrial
Catalysis and Centre for Computational Chemistry, East China University of Science and Technology, 130 Meilong Road, Shanghai, P. R. China 200237
| | - P. Hu
- Key
Laboratory for Advanced Materials, Research Institute of Industrial
Catalysis and Centre for Computational Chemistry, East China University of Science and Technology, 130 Meilong Road, Shanghai, P. R. China 200237
- School
of Chemistry and Chemical Engineering, The Queen’s University of Belfast, Belfast BT9 5AG, U.K
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643
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Wang P, Chang F, Gao W, Guo J, Wu G, He T, Chen P. Breaking scaling relations to achieve low-temperature ammonia synthesis through LiH-mediated nitrogen transfer and hydrogenation. Nat Chem 2016; 9:64-70. [DOI: 10.1038/nchem.2595] [Citation(s) in RCA: 334] [Impact Index Per Article: 41.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Accepted: 07/12/2016] [Indexed: 12/25/2022]
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644
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Yatom N, Toroker MC. Electronic Structure of Catalysis Intermediates by the G0W0 Approximation. Catal Letters 2016. [DOI: 10.1007/s10562-016-1825-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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645
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Moskaleva L, Chiu CC, Genest A, Rösch N. Transformations of Organic Molecules over Metal Surfaces: Insights from Computational Catalysis. CHEM REC 2016; 16:2388-2404. [DOI: 10.1002/tcr.201600048] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Indexed: 01/20/2023]
Affiliation(s)
- Lyudmila Moskaleva
- Institute of Applied and Physical Chemistry and Center for Environmental Research and Sustainable Technology Universität Bremen; 28359 Bremen Germany
| | - Cheng-chau Chiu
- Institute of Atomic and Molecular Sciences; Academia Sinica Taipei 10617 Taiwan
| | - Alexander Genest
- Institute of High Performance Computing Agency for Science, Technology and Research; 1 Fusionopolis Way Connexis #16-16 Singapore 138632 Singapore
| | - Notker Rösch
- Institute of High Performance Computing Agency for Science, Technology and Research; 1 Fusionopolis Way Connexis #16-16 Singapore 138632 Singapore
- Department Chemie and Catalysis Research Center; Technische Universität München; 85747 Garching Germany
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646
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Baek B, Aboiralor A, Wang S, Kharidehal P, Grabow LC, Massa JD. Strategy to improve catalytic trend predictions for methane oxidation and reforming. AIChE J 2016. [DOI: 10.1002/aic.15404] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Byeongjin Baek
- Dept. of Chemical and Biomolecular Engineering; University of Houston; Houston TX 77204-4004
| | - Abraham Aboiralor
- Dept. of Chemical and Biomolecular Engineering; University of Houston; Houston TX 77204-4004
| | - Shengguang Wang
- Dept. of Chemical and Biomolecular Engineering; University of Houston; Houston TX 77204-4004
| | - Purnima Kharidehal
- Dept. of Chemical and Biomolecular Engineering; University of Houston; Houston TX 77204-4004
| | - Lars C. Grabow
- Dept. of Chemical and Biomolecular Engineering; University of Houston; Houston TX 77204-4004
| | - Jacob D. Massa
- Dept. of Chemical and Biochemical Engineering, Rutgers, The State University of New Jersey; Piscataway NJ 08854
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647
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Chibani S, Chebbi M, Lebègue S, Bučko T, Badawi M. A DFT investigation of the adsorption of iodine compounds and water in H-, Na-, Ag-, and Cu- mordenite. J Chem Phys 2016; 144:244705. [DOI: 10.1063/1.4954659] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Siwar Chibani
- Université de Lorraine, LCP-A2MC, Institut Jean-Barriol FR2843 CNRS, Rue Victor Demange, 57500 Saint-Avold, France
| | - Mouheb Chebbi
- Université de Lorraine, LCP-A2MC, Institut Jean-Barriol FR2843 CNRS, Rue Victor Demange, 57500 Saint-Avold, France
| | - Sébastien Lebègue
- Laboratoire de Cristallographie, Résonance Magnétique et Modélisations (CRM2, UMR CNRS 7036) Institut Jean Barriol, Université de Lorraine BP 239, Boulevard des Aiguillettes, 54506 Vandoeuvre-lès-Nancy, France
| | - Tomáš Bučko
- Department of Physical and Theoretical Chemistry, Faculty of Natural Sciences, Comenius University in Bratislava, Ilkovičova 6, SK- 84215 Bratislava, Slovakia
- Institute of Inorganic Chemistry, Slovak Academy of Sciences, Dúbravska cesta 9, SK-84236 Bratislava, Slovakia
| | - Michael Badawi
- Université de Lorraine, LCP-A2MC, Institut Jean-Barriol FR2843 CNRS, Rue Victor Demange, 57500 Saint-Avold, France
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648
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Asara GG, Paz-Borbón LO, Baletto F. “Get in Touch and Keep in Contact”: Interface Effect on the Oxygen Reduction Reaction (ORR) Activity for Supported PtNi Nanoparticles. ACS Catal 2016. [DOI: 10.1021/acscatal.6b00259] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Gian Giacomo Asara
- Physics
Department, King’s College London, Strand WC2R 2LS, United Kingdom
| | - Lauro Oliver Paz-Borbón
- Physics
Department, King’s College London, Strand WC2R 2LS, United Kingdom
- Instituto
de Fisica, Universidad Nacional Autónoma de México, Apdo. Postal 20-364, 01000 Mexico, D.F. Mexico
| | - Francesca Baletto
- Physics
Department, King’s College London, Strand WC2R 2LS, United Kingdom
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649
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Sutton JE, Vlachos DG. Effect of errors in linear scaling relations and Brønsted–Evans–Polanyi relations on activity and selectivity maps. J Catal 2016. [DOI: 10.1016/j.jcat.2016.03.013] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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650
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Abstract
We show that the steady-state kinetics of a chemical reaction can be analyzed analytically in terms of proposed reaction schemes composed of series of steps with stoichiometric numbers equal to unity by calculating the maximum rates of the constituent steps, rmax,i, assuming that all of the remaining steps are quasi-equilibrated. Analytical expressions can be derived in terms of rmax,i to calculate degrees of rate control for each step to determine the extent to which each step controls the rate of the overall stoichiometric reaction. The values of rmax,i can be used to predict the rate of the overall stoichiometric reaction, making it possible to estimate the observed reaction kinetics. This approach can be used for catalytic reactions to identify transition states and adsorbed species that are important in controlling catalyst performance, such that detailed calculations using electronic structure calculations (e.g., density functional theory) can be carried out for these species, whereas more approximate methods (e.g., scaling relations) are used for the remaining species. This approach to assess the feasibility of proposed reaction schemes is exact for reaction schemes where the stoichiometric coefficients of the constituent steps are equal to unity and the most abundant adsorbed species are in quasi-equilibrium with the gas phase and can be used in an approximate manner to probe the performance of more general reaction schemes, followed by more detailed analyses using full microkinetic models to determine the surface coverages by adsorbed species and the degrees of rate control of the elementary steps.
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