1
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Wang Y, Li S. Computational screening of single-atom doped In 2O 3 catalysts for the reverse water gas shift reaction. Phys Chem Chem Phys 2023; 26:381-389. [PMID: 38078377 DOI: 10.1039/d3cp04352e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2023]
Abstract
The reverse water gas shift (RWGS) reaction is an important method for converting carbon dioxide (CO2) into valuable chemicals and fuels by hydrogenation. In this paper, the catalytic activity of single-atom metal-doped (M = Pt, Ir, Pd, Rh, Cu, Ni) indium oxide (c-In2O3) catalysts in the cubic phase for the RWGS reaction was investigated using density functional theory (DFT) calculations. This was achieved by identifying metal sites, screening oxygen vacancies, followed by further calculating the energy barriers for the direct and indirect dissociation pathways of the RWGS reaction. Our results show that the single-atom dopant in the indium oxide lattice promotes the creation of oxygen vacancies on the In2O3 surface, thereby facilitating the adsorption and activation of CO2 by the oxide surface and initiating the subsequent RWGS reaction. Furthermore, we find that the oxygen vacancy (OV) formation energy on the surface of the single-atom metal doped c-In2O3(111) surface can be used as a descriptor for CO2 adsorption, and the higher the OV formation energy, the more stable the CO2 adsorption structure is. The Cu/In2O3 structure has relatively high energy barriers for both direct (1.92 eV) and indirect dissociation (2.09 eV) in the RWGS reaction, indicating its low RWGS reactivity. In contrast, the Ir/In2O3 and Rh/In2O3 structures are more conducive to the direct dissociation of CO2 into CO, which may serve as more efficient RWGS catalysts. Furthermore, microkinetic simulations show that single atom metal doping to In2O3 enhances CO2 conversion, especially under high reaction temperatures, where the formation of oxygen vacancies is the limiting factor for CO2 reactivity on the M/In2O3 (M = Cu, Ir, Rh) models. Among these three single-atom catalysts, the Ir/In2O3 model was predicted to have the best CO2 reactivity at reaction temperatures above 573 K.
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Affiliation(s)
- Yuchen Wang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, P. R. China
- CAS Key Laboratory of Low-Carbon Conversion Science and Engineering, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201203, P. R. China.
| | - Shenggang Li
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, P. R. China
- CAS Key Laboratory of Low-Carbon Conversion Science and Engineering, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201203, P. R. China.
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
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2
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Hernández‐Castillo D, Nau REP, Schmid M, Tschierlei S, Rau S, González L. Mehrere Triplett-Metall-zentrierte Jahn-Teller-Isomere bestimmen die temperaturabhängigen Lumineszenzlebensdauern in [Ru(bpy) 3] 2. ANGEWANDTE CHEMIE (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 135:e202308803. [PMID: 38529088 PMCID: PMC10962581 DOI: 10.1002/ange.202308803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Indexed: 03/27/2024]
Abstract
AbstractEin genaues Verständnis der Faktoren, welche die Lumineszenzlebensdauer von Übergangsmetallverbindungen bestimmen, ist für Anwendungen in der Photokatalyse und der photodynamischen Therapie von entscheidender Bedeutung. Die im Falle von [Ru(bpy)3]2+ (bpy=2,2’‐Bipyridin) allgemein akzeptierte Theorie besagt, dass die Emissionslebensdauer durch Optimierung der Energiebarriere zwischen dem emittierenden Triplett‐Zustand des Metall‐Liganden‐Ladungstransfers (3MLCT) und dem thermisch aktivierten Triplett‐Zustand des Metall‐Zentrums (3MC), oder der Energielücke zwischen beiden Zuständen gesteuert werden kann. Hier zeigen wir, dass dies nicht allgemeingültig ist. Darüber hinaus demonstrieren wir, dass die Betrachtung eines einzelnen Relaxationspfades, der vom energetisch niedrigsten Minimum aus bestimmt wird, zu falschen Vorhersagen der temperaturabhängigen Emissionslebensdauer führt. Stattdessen erhalten wir eine ausgezeichnete Übereinstimmung mit den experimentellen temperaturabhängigen Lebensdauern, wenn ein erweitertes kinetisches Modell herangezogen wird, welches alle Pfade im Zusammenhang mit mehreren Jahn–Teller‐Isomeren und ihren effektiven Reaktionsbarrieren beinhaltet. Diese Konzepte sind für das Design weiterer lumineszierender Übergangsmetallkomplexe mit individuell angepassten Emissionslebensdauern auf der Grundlage theoretischer Vorhersagen unerlässlich.
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Affiliation(s)
- David Hernández‐Castillo
- Institute of Theoretical ChemistryFaculty of ChemistryUniversity of ViennaWähringer Str. 171090ViennaAustria
- Doctoral School in Chemistry (DoSChem)University of ViennaWähringer Straße 421090ViennaAustria
| | - Roland E. P. Nau
- Institute of Inorganic Chemistry IUlm UniversityAlbert-Einstein-Allee 1189081UlmGermany
| | - Marie‐Ann Schmid
- Technische Universität BraunschweigDepartment of Energy Conversion, Institute of Physical and Theoretical ChemistryRebenring 3138106BraunschweigGermany
| | - Stefanie Tschierlei
- Technische Universität BraunschweigDepartment of Energy Conversion, Institute of Physical and Theoretical ChemistryRebenring 3138106BraunschweigGermany
| | - Sven Rau
- Institute of Inorganic Chemistry IUlm UniversityAlbert-Einstein-Allee 1189081UlmGermany
| | - Leticia González
- Institute of Theoretical ChemistryFaculty of ChemistryUniversity of ViennaWähringer Str. 171090ViennaAustria
- Vienna Research Platform Accelerating Photoreaction DiscoveryUniversity of ViennaWähringer Straße 171090ViennaAustria
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3
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Hernández‐Castillo D, Nau REP, Schmid M, Tschierlei S, Rau S, González L. Multiple Triplet Metal-Centered Jahn-Teller Isomers Determine Temperature-Dependent Luminescence Lifetimes in [Ru(bpy) 3 ] 2. Angew Chem Int Ed Engl 2023; 62:e202308803. [PMID: 37433755 PMCID: PMC10962642 DOI: 10.1002/anie.202308803] [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: 06/22/2023] [Revised: 07/11/2023] [Accepted: 07/11/2023] [Indexed: 07/13/2023]
Abstract
Understanding the factors that determine the luminescence lifetime of transition metal compounds is key for applications in photocatalysis and photodynamic therapy. Here we show that for[ Ru ( bpy ) 3 ] 2 + ${[{\rm{Ru}}({\rm{bpy}})_{\rm{3}} ]^{{\rm{2 + }}} }$ (bpy = 2,2'-bipyridine), the generally accepted idea that emission lifetimes can be controlled optimizing the energy barrier from the emissive triplet metal-to-ligand charge-transfer (3 MLCT) state to the thermally-activated triplet metal-centered (3 MC) state or the energy gap between both states is a misconception. Further, we demonstrate that considering a single relaxation pathway determined from the minimum that is lowest in energy leads to wrong temperature-dependent emission lifetimes predictions. Instead, we obtain excellent agreement with experimental temperature-dependent lifetimes when an extended kinetic model that includes all the pathways related to multiple Jahn-Teller isomers and their effective reaction barriers is employed. These concepts are essential to correctly design other luminescent transition metal complexes with tailored emission lifetimes based on theoretical predictions.
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Affiliation(s)
- David Hernández‐Castillo
- Institute of Theoretical ChemistryFaculty of ChemistryUniversity of ViennaWähringer Str. 171090ViennaAustria
- Doctoral School in Chemistry (DoSChem)University of ViennaWähringer Straße 421090ViennaAustria
| | - Roland E. P. Nau
- Institute of Inorganic Chemistry IUlm UniversityAlbert-Einstein-Allee 1189081UlmGermany
| | - Marie‐Ann Schmid
- Technische Universität BraunschweigDepartment of Energy Conversion, Institute of Physical and Theoretical ChemistryRebenring 3138106BraunschweigGermany
| | - Stefanie Tschierlei
- Technische Universität BraunschweigDepartment of Energy Conversion, Institute of Physical and Theoretical ChemistryRebenring 3138106BraunschweigGermany
| | - Sven Rau
- Institute of Inorganic Chemistry IUlm UniversityAlbert-Einstein-Allee 1189081UlmGermany
| | - Leticia González
- Institute of Theoretical ChemistryFaculty of ChemistryUniversity of ViennaWähringer Str. 171090ViennaAustria
- Vienna Research Platform Accelerating Photoreaction DiscoveryUniversity of ViennaWähringer Straße 171090ViennaAustria
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4
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Abstract
Differences in entropies of competing transition states can direct kinetic selectivity. Understanding and modeling such entropy differences at the molecular level is complicated by the fact that entropy is statistical in nature; i.e., it depends on multiple vibrational states of transition structures, the existence of multiple dynamically accessible pathways past these transition structures, and contributions from multiple transition structures differing in conformation/configuration. The difficulties associated with modeling each of these contributors are discussed here, along with possible solutions, all with an eye toward the development of portable qualitative models of use to experimentalists aiming to design reactions that make use of entropy to control kinetic selectivity.
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Affiliation(s)
- Dean J Tantillo
- Department of Chemistry, University of California-Davis, 1 Shields Ave, Davis, California 95616, United States
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5
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Liu Z, Yang J, Wen Y, Lan Y, Guo L, Chen X, Cao K, Chen R, Shan B. Promotional Effect of H 2 Pretreatment on the CO PROX Performance of Pt 1/Co 3O 4: A First-Principles-Based Microkinetic Analysis. ACS APPLIED MATERIALS & INTERFACES 2022; 14:27762-27774. [PMID: 35674013 DOI: 10.1021/acsami.2c00775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Atomic Pt studded on cobalt oxide is a promising catalyst for CO preferential oxidation (PROX) dependent on its surface treatment. In this work, the CO PROX reaction mechanism on Co3O4 supported single Pt atom is investigated by a comprehensive first-principles based microkinetic analysis. It is found that as synthesized Pt1/Co3O4 interface is poisoned by CO in a wide low temperature window, leading to its low reactivity. The CO poisoning effect can be effectively mitigated by a H2 prereduction treatment, that exposes Co ∼ Co dimer sites for a noncompetitive Langmuir-Hinshelhood mechanism. In addition, surface H atoms assist O2 dissociation via "twisting" mechanism, avoiding the high barriers associated with direct O2 dissociation path. Microkinetic analysis reveals that the promotion of H-assisted pathway on H2 treated sample helps improve the activity and selectivity at low temperatures.
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Affiliation(s)
- Zhang Liu
- State Key Laboratory of Materials Processing and Die and Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, P.R. China
- School of Environmental Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, P.R. China
| | - Jiaqiang Yang
- State Key Laboratory of Materials Processing and Die and Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, P.R. China
| | - Yanwei Wen
- State Key Laboratory of Materials Processing and Die and Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, P.R. China
| | - Yuxiao Lan
- State Key Laboratory of Materials Processing and Die and Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, P.R. China
| | - Limin Guo
- School of Environmental Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, P.R. China
| | - Xi Chen
- State Key Laboratory of Materials Processing and Die and Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, P.R. China
| | - Kun Cao
- State Key Laboratory of Digital Manufacturing Equipment and Technology, School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, P.R. China
| | - Rong Chen
- State Key Laboratory of Digital Manufacturing Equipment and Technology, School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, P.R. China
| | - Bin Shan
- State Key Laboratory of Materials Processing and Die and Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, P.R. China
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6
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Wei J, Zheng M, Chen D, Wei C, Bai Y, Zhao L, Gao J, Xu C. Insights into the Reaction of 1-Butene Catalytic Cracking in HZSM-5 from First-Principles: Reaction Mechanism and Microkinetics Research. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c00045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jun Wei
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum (Beijing), 18 Fuxue Road, Beijing 102249, P.R. China
| | - Meng Zheng
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum (Beijing), 18 Fuxue Road, Beijing 102249, P.R. China
| | - Dongdong Chen
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum (Beijing), 18 Fuxue Road, Beijing 102249, P.R. China
| | - Chenhao Wei
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum (Beijing), 18 Fuxue Road, Beijing 102249, P.R. China
| | - Yuen Bai
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum (Beijing), 18 Fuxue Road, Beijing 102249, P.R. China
| | - Liang Zhao
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum (Beijing), 18 Fuxue Road, Beijing 102249, P.R. China
| | - Jinsen Gao
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum (Beijing), 18 Fuxue Road, Beijing 102249, P.R. China
| | - Chunming Xu
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum (Beijing), 18 Fuxue Road, Beijing 102249, P.R. China
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7
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Liao W, Liu P. Enhanced descriptor identification and mechanism understanding for catalytic activity using a data-driven framework: revealing the importance of interactions between elementary steps. Catal Sci Technol 2022. [DOI: 10.1039/d2cy00284a] [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
A data-driven framework was developed which used ML surrogate model to extract activity controlling descriptors from kinetics dataset. It enhanced mechanic understanding and predicted catalytic activities more accurately than derivate-based method.
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Affiliation(s)
- Wenjie Liao
- Department of Chemistry, State University of New York at Stony Brook, Stony Brook, New York, 11794, USA
| | - Ping Liu
- Department of Chemistry, State University of New York at Stony Brook, Stony Brook, New York, 11794, USA
- Chemistry Division, Brookhaven National Laboratory, Upton, New York, 11973, USA
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8
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Baz A, Dix ST, Holewinski A, Linic S. Microkinetic modeling in electrocatalysis: Applications, limitations, and recommendations for reliable mechanistic insights. J Catal 2021. [DOI: 10.1016/j.jcat.2021.08.043] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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9
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Liu R. Dynamic Microkinetic Modeling for Heterogeneously Catalyzed Hydrogenation Reactions: a Coverage-Oriented View. ACS OMEGA 2021; 6:29432-29448. [PMID: 34778616 PMCID: PMC8581974 DOI: 10.1021/acsomega.1c03292] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Accepted: 10/12/2021] [Indexed: 06/13/2023]
Abstract
In most studies, the microkinetics for multistep reactions are numerically solved due to their complexity; the obtained numerical results are only valid under given reaction conditions at a static point. In this work, the microkinetics of heterogeneously catalyzed hydrogenation reactions are analytically solved as a function of three coupled physical parameters, which are energy, reaction rate, and coverage. The results correlate the surface reactions and the gaseous-phased reactant/product by energy and thus provide a dynamic view over the whole reaction process rather than at a static point. The analytical expressions are given for a simple hydrogenation reaction and three more complicated hypothetical hydrogenation reactions with side products, side reaction paths, or even multiple active sites. Compared with the numerical solution, the analytical solution is valid under all reaction conditions in practice and can provide more guidance to optimize the overall outcome or catalyst development.
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10
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Baz A, Holewinski A. Predicting macro-kinetic observables in electrocatalysis using the generalized degree of rate control. J Catal 2021. [DOI: 10.1016/j.jcat.2021.03.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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11
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Vogiatzis KD, Polynski MV, Kirkland JK, Townsend J, Hashemi A, Liu C, Pidko EA. Computational Approach to Molecular Catalysis by 3d Transition Metals: Challenges and Opportunities. Chem Rev 2019; 119:2453-2523. [PMID: 30376310 PMCID: PMC6396130 DOI: 10.1021/acs.chemrev.8b00361] [Citation(s) in RCA: 207] [Impact Index Per Article: 41.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Indexed: 12/28/2022]
Abstract
Computational chemistry provides a versatile toolbox for studying mechanistic details of catalytic reactions and holds promise to deliver practical strategies to enable the rational in silico catalyst design. The versatile reactivity and nontrivial electronic structure effects, common for systems based on 3d transition metals, introduce additional complexity that may represent a particular challenge to the standard computational strategies. In this review, we discuss the challenges and capabilities of modern electronic structure methods for studying the reaction mechanisms promoted by 3d transition metal molecular catalysts. Particular focus will be placed on the ways of addressing the multiconfigurational problem in electronic structure calculations and the role of expert bias in the practical utilization of the available methods. The development of density functionals designed to address transition metals is also discussed. Special emphasis is placed on the methods that account for solvation effects and the multicomponent nature of practical catalytic systems. This is followed by an overview of recent computational studies addressing the mechanistic complexity of catalytic processes by molecular catalysts based on 3d metals. Cases that involve noninnocent ligands, multicomponent reaction systems, metal-ligand and metal-metal cooperativity, as well as modeling complex catalytic systems such as metal-organic frameworks are presented. Conventionally, computational studies on catalytic mechanisms are heavily dependent on the chemical intuition and expert input of the researcher. Recent developments in advanced automated methods for reaction path analysis hold promise for eliminating such human-bias from computational catalysis studies. A brief overview of these approaches is presented in the final section of the review. The paper is closed with general concluding remarks.
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Affiliation(s)
| | | | - Justin K. Kirkland
- Department
of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Jacob Townsend
- Department
of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Ali Hashemi
- Inorganic
Systems Engineering group, Department of Chemical Engineering, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, The Netherlands
| | - Chong Liu
- Inorganic
Systems Engineering group, Department of Chemical Engineering, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, The Netherlands
| | - Evgeny A. Pidko
- TheoMAT
group, ITMO University, Lomonosova 9, St. Petersburg 191002, Russia
- Inorganic
Systems Engineering group, Department of Chemical Engineering, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, The Netherlands
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12
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Solel E, Tarannam N, Kozuch S. Catalysis: energy is the measure of all things. Chem Commun (Camb) 2019; 55:5306-5322. [DOI: 10.1039/c9cc00754g] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Is there any place in the extremely well-established field of catalytic kinetics for new interpretations or novel models that can change the basic doctrines and viewpoints of catalytic cycles?
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Affiliation(s)
- Ephrath Solel
- Department of Chemistry
- Ben-Gurion University of the Negev
- Beer-Sheva 841051
- Israel
| | - Naziha Tarannam
- Department of Chemistry
- Ben-Gurion University of the Negev
- Beer-Sheva 841051
- Israel
| | - Sebastian Kozuch
- Department of Chemistry
- Ben-Gurion University of the Negev
- Beer-Sheva 841051
- Israel
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13
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Medford AJ, Kunz MR, Ewing SM, Borders T, Fushimi R. Extracting Knowledge from Data through Catalysis Informatics. ACS Catal 2018. [DOI: 10.1021/acscatal.8b01708] [Citation(s) in RCA: 128] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Andrew J. Medford
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30318 United States
| | - M. Ross Kunz
- Biological and Chemical Processing Department, Energy and Environmental Science and Technology, Idaho National Laboratory, P.O. Box 1625, Idaho Falls, Idaho 83415, United States
| | - Sarah M. Ewing
- Biological and Chemical Processing Department, Energy and Environmental Science and Technology, Idaho National Laboratory, P.O. Box 1625, Idaho Falls, Idaho 83415, United States
| | - Tammie Borders
- Biological and Chemical Processing Department, Energy and Environmental Science and Technology, Idaho National Laboratory, P.O. Box 1625, Idaho Falls, Idaho 83415, United States
| | - Rebecca Fushimi
- Biological and Chemical Processing Department, Energy and Environmental Science and Technology, Idaho National Laboratory, P.O. Box 1625, Idaho Falls, Idaho 83415, United States
- Center for Advanced Energy Studies, 995 University Boulevard, Idaho Falls, Idaho 83401, United States
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14
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Ammal SC, Heyden A. Titania‐Supported Single‐Atom Platinum Catalyst for Water‐Gas Shift Reaction. CHEM-ING-TECH 2017. [DOI: 10.1002/cite.201700046] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Salai Cheettu Ammal
- University of South Carolina Department of Chemical Engineering 301 South Main Street 29208 Columbia, South Carolina USA
| | - Andreas Heyden
- University of South Carolina Department of Chemical Engineering 301 South Main Street 29208 Columbia, South Carolina USA
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15
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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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16
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Cho J, Lee S, Yoon SP, Han J, Nam SW, Lee KY, Ham HC. Role of Heteronuclear Interactions in Selective H2 Formation from HCOOH Decomposition on Bimetallic Pd/M (M = Late Transition FCC Metal) Catalysts. ACS Catal 2017. [DOI: 10.1021/acscatal.6b02825] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jinwon Cho
- Fuel
Cell Research Center, Korea Institute of Science and Technology (KIST), 5, Hwarang-ro14-gil, Seongbuk-gu, Seoul 02792, Republic of Korea
| | - Sangheon Lee
- Fuel
Cell Research Center, Korea Institute of Science and Technology (KIST), 5, Hwarang-ro14-gil, Seongbuk-gu, Seoul 02792, Republic of Korea
- Department
of Chemical Engineering and Materials Science, Ewha Womans University, 52, Ewhayeodae-gil, Seodaemun-gu, Seoul 03760, Republic of Korea
| | - Sung Pil Yoon
- Fuel
Cell Research Center, Korea Institute of Science and Technology (KIST), 5, Hwarang-ro14-gil, Seongbuk-gu, Seoul 02792, Republic of Korea
| | - Jonghee Han
- Fuel
Cell Research Center, Korea Institute of Science and Technology (KIST), 5, Hwarang-ro14-gil, Seongbuk-gu, Seoul 02792, Republic of Korea
- Green
School (Graduate School of Energy and Environment), Korea University, 145,
Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Suk Woo Nam
- Fuel
Cell Research Center, Korea Institute of Science and Technology (KIST), 5, Hwarang-ro14-gil, Seongbuk-gu, Seoul 02792, Republic of Korea
- Green
School (Graduate School of Energy and Environment), Korea University, 145,
Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Kwan-Young Lee
- Green
School (Graduate School of Energy and Environment), Korea University, 145,
Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Hyung Chul Ham
- Fuel
Cell Research Center, Korea Institute of Science and Technology (KIST), 5, Hwarang-ro14-gil, Seongbuk-gu, Seoul 02792, Republic of Korea
- Clean
Energy and Chemical Engineering, Korea University of Science and Technology, 217, Gajungro, Yuseong-gu, Daejeon 34113, Republic of Korea
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17
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Ammal SC, Heyden A. Water-Gas Shift Activity of Atomically Dispersed Cationic Platinum versus Metallic Platinum Clusters on Titania Supports. ACS Catal 2016. [DOI: 10.1021/acscatal.6b02764] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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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18
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19
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Faheem M, Saleheen M, Lu J, Heyden A. Ethylene glycol reforming on Pt(111): first-principles microkinetic modeling in vapor and aqueous phases. Catal Sci Technol 2016. [DOI: 10.1039/c6cy02111e] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Reaction chemistry for vapor- and aqueous-phase reforming of ethylene glycol over Pt(111) is similar with early dehydrogenation steps being rate-controlling.
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Affiliation(s)
- Muhammad Faheem
- Department of Chemical Engineering
- University of South Carolina
- Columbia
- USA
- Department of Chemical Engineering
| | - Mohammad Saleheen
- Department of Chemical Engineering
- University of South Carolina
- Columbia
- USA
| | - Jianmin Lu
- Department of Chemical Engineering
- University of South Carolina
- Columbia
- USA
- State Key Laboratory of Catalysis
| | - Andreas Heyden
- Department of Chemical Engineering
- University of South Carolina
- Columbia
- USA
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20
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Nielsen M, Brogaard RY, Falsig H, Beato P, Swang O, Svelle S. Kinetics of Zeolite Dealumination: Insights from H-SSZ-13. ACS Catal 2015. [DOI: 10.1021/acscatal.5b01496] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Malte Nielsen
- Center
for Materials Science and Nanotechnology (SMN), Department of Chemistry, University of Oslo, P.O.
Box 1033, Blindern, N-0315 Oslo, Norway
- Haldor
Topsøe
A/S, Haldor Topsøes Allé
1, DK-2800 Kgs., Lyngby, Denmark
| | - Rasmus Yding Brogaard
- Center
for Materials Science and Nanotechnology (SMN), Department of Chemistry, University of Oslo, P.O.
Box 1033, Blindern, N-0315 Oslo, Norway
| | - Hanne Falsig
- Haldor
Topsøe
A/S, Haldor Topsøes Allé
1, DK-2800 Kgs., Lyngby, Denmark
| | - Pablo Beato
- Haldor
Topsøe
A/S, Haldor Topsøes Allé
1, DK-2800 Kgs., Lyngby, Denmark
| | - Ole Swang
- Center
for Materials Science and Nanotechnology (SMN), Department of Chemistry, University of Oslo, P.O.
Box 1033, Blindern, N-0315 Oslo, Norway
- SINTEF Materials
and Chemistry, P.O. Box 124 Blindern, 0314 Oslo, Norway
| | - Stian Svelle
- Center
for Materials Science and Nanotechnology (SMN), Department of Chemistry, University of Oslo, P.O.
Box 1033, Blindern, N-0315 Oslo, Norway
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Unraveling the mechanism of propanoic acid hydrodeoxygenation on palladium using deuterium kinetic isotope effects. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.molcata.2015.05.019] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Suthirakun S, Ammal SC, Muñoz-García AB, Xiao G, Chen F, zur Loye HC, Carter EA, Heyden A. Theoretical Investigation of H2 Oxidation on the Sr2Fe1.5Mo0.5O6 (001) Perovskite Surface under Anodic Solid Oxide Fuel Cell Conditions. J Am Chem Soc 2014; 136:8374-86. [DOI: 10.1021/ja502629j] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Suwit Suthirakun
- Department
of Chemical Engineering, University of South Carolina, 301 Main Street, Columbia, South Carolina 29208, United States
| | - Salai Cheettu Ammal
- Department
of Chemical Engineering, University of South Carolina, 301 Main Street, Columbia, South Carolina 29208, United States
| | - Ana B. Muñoz-García
- Department
of Chemical Sciences, University of Naples Federico II, Naples 80126, Italy
- Department
of Mechanical and Aerospace Engineering, Program in Applied and Computational
Mathematics, and Andlinger Center for Energy and the Environment, Princeton University, Princeton, New Jersey 08544, United States
| | - Guoliang Xiao
- Department
of Mechanical Engineering, University of South Carolina, 300 Main
Street, Columbia, South Carolina 29208, United States
| | - Fanglin Chen
- Department
of Mechanical Engineering, University of South Carolina, 300 Main
Street, Columbia, South Carolina 29208, United States
| | - Hans-Conrad zur Loye
- Department
of Chemistry and Biochemistry, University of South Carolina, 631
Sumter Street, Columbia, South Carolina 29208, United States
| | - Emily A. Carter
- Department
of Mechanical and Aerospace Engineering, Program in Applied and Computational
Mathematics, and Andlinger Center for Energy and the Environment, Princeton University, Princeton, New Jersey 08544, United States
| | - Andreas Heyden
- Department
of Chemical Engineering, University of South Carolina, 301 Main Street, Columbia, South Carolina 29208, United States
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Affiliation(s)
- Sebastian Kozuch
- Department of Organic Chemistry, Weizmann Institute of Science, IL-76100 Rechovot, Israel
| | - Jan M. L. Martin
- Department of Organic Chemistry, Weizmann Institute of Science, IL-76100 Rechovot, Israel
- Center for Advanced Scientific
Computing and Modeling (CASCAM), Department of Chemistry, University of North Texas, Denton, Texas 76203, United
States
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Kozuch S. A refinement of everyday thinking: the energetic span model for kinetic assessment of catalytic cycles. WILEY INTERDISCIPLINARY REVIEWS-COMPUTATIONAL MOLECULAR SCIENCE 2012. [DOI: 10.1002/wcms.1100] [Citation(s) in RCA: 129] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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Sabbe MK, Reyniers MF, Reuter K. First-principles kinetic modeling in heterogeneous catalysis: an industrial perspective on best-practice, gaps and needs. Catal Sci Technol 2012. [DOI: 10.1039/c2cy20261a] [Citation(s) in RCA: 121] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Kozuch S, Shaik S. How to conceptualize catalytic cycles? The energetic span model. Acc Chem Res 2011; 44:101-10. [PMID: 21067215 DOI: 10.1021/ar1000956] [Citation(s) in RCA: 1080] [Impact Index Per Article: 83.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A computational study of a catalytic cycle generates state energies (the E-representation), whereas experiments lead to rate constants (the k-representation). Based on transition state theory (TST), these are equivalent representations. Nevertheless, until recently, there has been no simple way to calculate the efficiency of a catalytic cycle, that is, its turnover frequency (TOF), from a theoretically obtained energy profile. In this Account, we introduce the energetic span model that enables one to evaluate TOFs in a straightforward manner and in affinity with the Curtin-Hammett principle. As shown herein, the model implies a change in our kinetic concepts. Analogous to Ohm's law, the catalytic chemical current (the TOF) can be defined by a chemical potential (independent of the mechanism) divided by a chemical resistance (dependent on the mechanism and the nature of the catalyst). This formulation is based on Eyring's TST and corresponds to a steady-state regime. In many catalytic cycles, only one transition state and one intermediate determine the TOF. We call them the TOF-determining transition state (TDTS) and the TOF-determining intermediate (TDI). These key states can be located, from among the many states available to a catalytic cycle, by assessing the degree of TOF control (X(TOF)); this last term resembles the structure-reactivity coefficient in classical physical organic chemistry. The TDTS-TDI energy difference and the reaction driving force define the energetic span (δE) of the cycle. Whenever the TDTS appears after the TDI, δE is the energy difference between these two states; when the opposite is true, we must also add the driving force to this difference. Having δE, the TOF is expressed simply in the Arrhenius-Eyring fashion, wherein δE serves as the apparent activation energy of the cycle. An important lesson from this model is that neither one transition state nor one reaction step possess all the kinetic information that determines the efficiency of a catalyst. Additionally, the TDI and TDTS are not necessarily the highest and lowest states, nor do they have to be adjoined as a single step. As such, we can conclude that a change in the conceptualization of catalytic cycles is in order: in catalysis, there are no rate-determining steps, but rather rate-determining states. We also include a study on the effect of reactant and product concentrations. In the energetic span approximation, only the reactants or products that are located between the TDI and TDTS accelerate or inhibit the reaction. In this manner, the energetic span model creates a direct link between experimental quantities and theoretical results. The versatility of the energetic span model is demonstrated with several catalytic cycles of organometallic reactions.
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Affiliation(s)
- Sebastian Kozuch
- Department of Organic Chemistry, The Weizmann Institute of Science, IL-76100 Rehovot, Israel
| | - Sason Shaik
- Institute of Chemistry and the Lise Meitner-Minerva Center for Computational Quantum Chemistry, Hebrew University of Jerusalem, Givat Ram Campus, 91904 Jerusalem, Israel
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Uhe A, Kozuch S, Shaik S. Automatic analysis of computed catalytic cycles. J Comput Chem 2010; 32:978-85. [PMID: 21341293 DOI: 10.1002/jcc.21669] [Citation(s) in RCA: 192] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2010] [Revised: 08/05/2010] [Accepted: 08/12/2010] [Indexed: 11/10/2022]
Affiliation(s)
- Andreas Uhe
- Institut für Technische und Makromolekulare Chemie, RWTH Aachen University, Aachen, Germany.
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Uhe A, Hölscher M, Leitner W. A Computational Study of Rhodium Pincer Complexes with Classical and Nonclassical Hydride Centres as Catalysts for the Hydroamination of Ethylene with Ammonia. Chemistry 2010; 16:9203-14. [DOI: 10.1002/chem.201000669] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Armstrong G. Locating key states. Nat Chem 2009. [DOI: 10.1038/nchem.233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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