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Van Speybroeck V, Bocus M, Cnudde P, Vanduyfhuys L. Operando Modeling of Zeolite-Catalyzed Reactions Using First-Principles Molecular Dynamics Simulations. ACS Catal 2023; 13:11455-11493. [PMID: 37671178 PMCID: PMC10476167 DOI: 10.1021/acscatal.3c01945] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Revised: 07/27/2023] [Indexed: 09/07/2023]
Abstract
Within this Perspective, we critically reflect on the role of first-principles molecular dynamics (MD) simulations in unraveling the catalytic function within zeolites under operating conditions. First-principles MD simulations refer to methods where the dynamics of the nuclei is followed in time by integrating the Newtonian equations of motion on a potential energy surface that is determined by solving the quantum-mechanical many-body problem for the electrons. Catalytic solids used in industrial applications show an intriguing high degree of complexity, with phenomena taking place at a broad range of length and time scales. Additionally, the state and function of a catalyst critically depend on the operating conditions, such as temperature, moisture, presence of water, etc. Herein we show by means of a series of exemplary cases how first-principles MD simulations are instrumental to unravel the catalyst complexity at the molecular scale. Examples show how the nature of reactive species at higher catalytic temperatures may drastically change compared to species at lower temperatures and how the nature of active sites may dynamically change upon exposure to water. To simulate rare events, first-principles MD simulations need to be used in combination with enhanced sampling techniques to efficiently sample low-probability regions of phase space. Using these techniques, it is shown how competitive pathways at operating conditions can be discovered and how broad transition state regions can be explored. Interestingly, such simulations can also be used to study hindered diffusion under operating conditions. The cases shown clearly illustrate how first-principles MD simulations reveal insights into the catalytic function at operating conditions, which could not be discovered using static or local approaches where only a few points are considered on the potential energy surface (PES). Despite these advantages, some major hurdles still exist to fully integrate first-principles MD methods in a standard computational catalytic workflow or to use the output of MD simulations as input for multiple length/time scale methods that aim to bridge to the reactor scale. First of all, methods are needed that allow us to evaluate the interatomic forces with quantum-mechanical accuracy, albeit at a much lower computational cost compared to currently used density functional theory (DFT) methods. The use of DFT limits the currently attainable length/time scales to hundreds of picoseconds and a few nanometers, which are much smaller than realistic catalyst particle dimensions and time scales encountered in the catalysis process. One solution could be to construct machine learning potentials (MLPs), where a numerical potential is derived from underlying quantum-mechanical data, which could be used in subsequent MD simulations. As such, much longer length and time scales could be reached; however, quite some research is still necessary to construct MLPs for the complex systems encountered in industrially used catalysts. Second, most currently used enhanced sampling techniques in catalysis make use of collective variables (CVs), which are mostly determined based on chemical intuition. To explore complex reactive networks with MD simulations, methods are needed that allow the automatic discovery of CVs or methods that do not rely on a priori definition of CVs. Recently, various data-driven methods have been proposed, which could be explored for complex catalytic systems. Lastly, first-principles MD methods are currently mostly used to investigate local reactive events. We hope that with the rise of data-driven methods and more efficient methods to describe the PES, first-principles MD methods will in the future also be able to describe longer length/time scale processes in catalysis. This might lead to a consistent dynamic description of all steps-diffusion, adsorption, and reaction-as they take place at the catalyst particle level.
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Affiliation(s)
| | - Massimo Bocus
- Center for Molecular Modeling, Ghent University, Technologiepark 46, 9052 Zwijnaarde, Belgium
| | - Pieter Cnudde
- Center for Molecular Modeling, Ghent University, Technologiepark 46, 9052 Zwijnaarde, Belgium
| | - Louis Vanduyfhuys
- Center for Molecular Modeling, Ghent University, Technologiepark 46, 9052 Zwijnaarde, Belgium
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2
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Baklanov AV, Kiselev VG. The Nature of the Enthalpy-Entropy Compensation and "Exotic" Arrhenius Parameters in the Denaturation Kinetics of Proteins. Int J Mol Sci 2023; 24:10630. [PMID: 37445807 DOI: 10.3390/ijms241310630] [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: 05/15/2023] [Revised: 06/13/2023] [Accepted: 06/19/2023] [Indexed: 07/15/2023] Open
Abstract
Protein unfolding is a ubiquitous process responsible for the loss of protein functionality (denaturation), which, in turn, can be accompanied by the death of cells and organisms. The nature of enthalpy-entropy compensation (EEC) in the kinetics of protein unfolding is a subject of debate. In order to investigate the nature of EEC, the "completely loose" transition state (TS) model has been applied to calculate the Arrhenius parameters for the unfolding of polyglycine dimers as a model process. The calculated Arrhenius parameters increase with increasing dimer length and demonstrate enthalpy-entropy compensation. It is shown that EEC results from the linear correlations of enthalpy and entropy of activation with dimer length, which are derived directly from the properties of the transition state. It is shown that EEC in solvated (hydrated, etc.) proteins is a direct consequence of EEC in proteins themselves. The suggested model allows us also to reproduce and explain "exotic" very high values of the pre-exponential factor measured for the proteins unfolding, which are drastically higher than those known for unimolecular reactions of organic molecules. A similar approach can be applied to analyzing the nature of EEC phenomena observed in other areas of chemistry.
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Affiliation(s)
- Alexey V Baklanov
- Institute of Chemical Kinetics and Combustion SB RAS, 3 Institutskaya Street, 630090 Novosibirsk, Russia
| | - Vitaly G Kiselev
- Institute of Chemical Kinetics and Combustion SB RAS, 3 Institutskaya Street, 630090 Novosibirsk, Russia
- Department of Physics, Novosibirsk State University, 1 Pirogova Street, 630090 Novosibirsk, Russia
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3
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Qu W, Fang X, Ren Z, Chen J, Liu X, Ma Z, Tang X. NO Selective Catalytic Reduction over Atom-Pair Active Sites Accelerated via In Situ NO Oxidation. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:7858-7866. [PMID: 37161886 DOI: 10.1021/acs.est.3c00461] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Selective catalytic reduction (SCR) of NOx with NH3 is the most efficient technology for NOx emissions control, but the activity of catalysts decreases exponentially with the decrease in reaction temperature, hindering the application of the technology in low-temperature SCR to treat industrial stack gases. Here, we present an industrially practicable technology to significantly enhance the SCR activity at low temperatures (<250 °C). By introducing an appropriate amount of O3 into the simulated stack gas, we find that O3 can stoichiometrically oxidize NO to generate NO2, which enables NO reduction to follow the fast SCR mechanism so as to accelerate SCR at low temperatures, and, in particular, an increase in SCR rate by more than four times is observed over atom-pair V1-W1 active sites supported on TiO2(001) at 200 °C. Using operando SCR tests and in situ diffuse reflectance infrared Fourier transform spectra, we reveal that the introduction of O3 allows SCR to proceed along a NH4NO3-mediated Langmuir-Hinshelwood model, in which the adsorbed nitrate species speed up the re-oxidation of the catalytic sites that is the rate-limiting step of SCR, thus leading to the enhancement of activity at low temperatures. This technology could be applicable in the real stack gas conditions because O3 exclusively oxidizes NO even in the co-presence of SO2 and H2O, which provides a general strategy to improve low-temperature SCR efficacy from another perspective beyond designing catalysts.
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Affiliation(s)
- Weiye Qu
- Department of Environmental Science & Engineering, Fudan University, Shanghai 200433, China
| | - Xue Fang
- Department of Environmental Science & Engineering, Fudan University, Shanghai 200433, China
| | - Zhouhong Ren
- School of Chemistry and Chemical Engineering, In-situ Center for Physical Sciences, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Junxiao Chen
- Department of Environmental Science & Engineering, Fudan University, Shanghai 200433, China
| | - Xi Liu
- School of Chemistry and Chemical Engineering, In-situ Center for Physical Sciences, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Zhen Ma
- Department of Environmental Science & Engineering, Fudan University, Shanghai 200433, China
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China
| | - Xingfu Tang
- Department of Environmental Science & Engineering, Fudan University, Shanghai 200433, China
- Jiangsu Collaborative Innovation Center of Atmospheric Environment & Equipment Technology, Nanjing University of Information Science & Technology, Nanjing 210044, China
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China
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4
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Study of the Kinetics of Reduction of IrO2 on TiO2 (Anatase) by Temperature-Programmed Reduction. INORGANICS 2023. [DOI: 10.3390/inorganics11020066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
The interaction between IrO2 and TiO2 (anatase) in non-isothermal reduction conditions has been studied by the temperature programmed reduction technique. IrO2 clusters are of sizes between 0.5 and 0.9 nm as determined from High Resolution Transmission Electron Microscopy (HRTEM). Largely, two main regions for reduction were found and modeled at ca. 100 and 230 °C. The first region is attributed to the partial reduction of IrO2 clusters, while the second one is due to reduction of the formed crystalline (rutile IrO2), during TPR, to Ir metal. Two methods for calculating kinetic parameters were tested. First, by applying different ramping rates on a 3.5 wt.% IrO2/TiO2 using Kissinger’s method. The apparent activation energy values for the first and second reduction regions were found to be ca. 35 and 100 kJ/mol, respectively. The second method was based on fitting different kinetic models for the experimental results in order to extract qualitative information on the nature of interaction during the reduction process. It was found that the first reduction is largely due to the amount of IrO2 (reactant concentration) while the second one involved phase boundary effect as well as nucleation.
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Meyer R, Mueller K, Naumov S, Bauer F, Enke D. Characterization of polar surface groups on siliceous materials by inverse gas chromatography and the enthalpy-entropy compensation effect. Front Chem 2023; 11:1084046. [PMID: 37065825 PMCID: PMC10098098 DOI: 10.3389/fchem.2023.1084046] [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: 10/29/2022] [Accepted: 03/17/2023] [Indexed: 04/18/2023] Open
Abstract
Surface-modified porous silica is a well-established composite material. To improve its embedding and application behavior, adsorption studies of various probe molecules have been performed using the technique of inverse gas chromatography (IGC). For this purpose, IGC experiments were carried out in the infinite dilution mode on macro-porous micro glass spheres before and after surface modification with (3-mercaptopropyl)trimethoxysilane. To provide information about the polar interactions between probe molecules and the silica surface, in particular, eleven polar molecules have been injected. In summary, the free surface energy for pristine silica ( γ S t o t a l = 229 mJ/m2) and for (3-mercaptopropyl)trimethoxysilane-modified silica ( γ S t o t a l = 135 mJ/m2) indicates a reduced wettability after surface modification. This is due to the reduction of the polar component of the free surface energy ( γ S S P ) from 191 mJ/m2 to 105 mJ/m2. Simultaneously, with the reduction of surface silanol groups caused by surface modification of silica and, therefore, the decrease in polar interactions, a substantial loss of Lewis acidity was observed by various IGC approaches. Experiments with all silica materials have been conducted at temperatures in the range from 90°C to 120°C to determine the thermodynamic parameters, such as adsorption enthalpy ( Δ H a d s ) and adsorption entropy ( Δ S a d s ), using the Arrhenius regression procedure evaluating the IGC data. With the help of the enthalpy-entropy compensation, two types of adsorption complexes are assumed between polar probe molecules and the silica surface because of different isokinetic temperatures. Identical adsorption complexes with an isokinetic temperature of 370°C have been assigned to alkanes and weakly interacting polar probes such as benzene, toluene, dichloromethane, and chloroform. Polar probe molecules with typical functional groups such as OH, CO, and CN, having the ability to form hydrogen bonds to the silica surface, exhibit a lower isokinetic temperature of 60°C. Quantum chemical calculations of the probe molecules on a non-hydroxylated and hydroxylated silica cluster supported the formation of hydrogen bonds in the case of a strong polar adsorption complex with a bonding distance of 1.7 nm-1.9 nm to the silica surface.
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Affiliation(s)
- Ralf Meyer
- Institute of Chemical Technology, Leipzig University, Leipzig, Germany
- *Correspondence: Ralf Meyer, ; Dirk Enke,
| | - Kai Mueller
- Institute of Chemical Technology, Leipzig University, Leipzig, Germany
| | - Sergej Naumov
- Leibniz Institute of Surface Engineering, Leipzig, Germany
| | - Frank Bauer
- Institute of Chemical Technology, Leipzig University, Leipzig, Germany
| | - Dirk Enke
- Institute of Chemical Technology, Leipzig University, Leipzig, Germany
- *Correspondence: Ralf Meyer, ; Dirk Enke,
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Qu W, Yuan H, Ren Z, Qi J, Xu D, Chen J, Chen L, Yang H, Ma Z, Liu X, Wang H, Tang X. An Atom-Pair Design Strategy for Optimizing the Synergistic Electron Effects of Catalytic Sites in NO Selective Reduction. Angew Chem Int Ed Engl 2022; 61:e202212703. [PMID: 36321806 DOI: 10.1002/anie.202212703] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Indexed: 11/30/2022]
Abstract
Effective adsorption and speedy surface reactions are vital requirements for efficient active sites in catalysis, but it remains challenging to maximize these two functions simultaneously. We present a solution to this issue by designing a series of atom-pair catalytic sites with tunable electronic interactions. As a case study, NO selective reduction occurring on V1 -W1 /TiO2 is chosen. Experimental and theoretical results reveal that the synergistic electron effect present between the paired atoms enriches high-energy spin charge around the Fermi level, simultaneously rendering reactant (NH3 or O2 ) adsorption more effective and subsequent surface reactions speedier as compared with single V or W atom alone, and hence higher reaction rates. This strategy enables us to rationally design a high-performance V1 -Mo1 /TiO2 catalyst with optimized vanadium(IV)-molybdenum(V) electronic interactions, which has exceptional activity significantly higher than the commercial or reported catalysts.
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Affiliation(s)
- Weiye Qu
- Department of Environmental Science and Engineering, Fudan University, Shanghai, 200438, China
| | - Haiyang Yuan
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis and Centre for Computational Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, China.,Key Laboratory for Ultrafine Materials of Ministry of Education, Shanghai Engineering Research Center of Hierarchical Nanomaterials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Zhouhong Ren
- In situ Center for Physical Sciences, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Jizhen Qi
- i-Lab, CAS Center for Excellence in Nanoscience Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences, Suzhou, 215123, China
| | - Dongrun Xu
- Department of Environmental Science and Engineering, Fudan University, Shanghai, 200438, China
| | - Junxiao Chen
- Department of Environmental Science and Engineering, Fudan University, Shanghai, 200438, China
| | - Liwei Chen
- In situ Center for Physical Sciences, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China.,i-Lab, CAS Center for Excellence in Nanoscience Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences, Suzhou, 215123, China.,Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Huagui Yang
- Key Laboratory for Ultrafine Materials of Ministry of Education, Shanghai Engineering Research Center of Hierarchical Nanomaterials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Zhen Ma
- Department of Environmental Science and Engineering, Fudan University, Shanghai, 200438, China.,Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, China
| | - Xi Liu
- In situ Center for Physical Sciences, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Haifeng Wang
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis and Centre for Computational Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Xingfu Tang
- Department of Environmental Science and Engineering, Fudan University, Shanghai, 200438, China.,Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, China
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7
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Ge X, Cao Y, Yan K, Li Y, Zhou L, Dai S, Zhang J, Gong X, Qian G, Zhou X, Yuan W, Duan X. Increasing the Distance of Adjacent Palladium Atoms for Configuration Matching in Selective Hydrogenation. Angew Chem Int Ed Engl 2022; 61:e202215225. [PMID: 36269685 DOI: 10.1002/anie.202215225] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Indexed: 11/05/2022]
Abstract
Precisely tailoring the distance between adjacent metal sites to match adsorption configurations of key species for the targeted reaction pathway is a great challenge in heterogeneous catalysis. Here, we report a proof-of-concept study on the atomically sites-tailored pathway in Pd-catalyzed acetylene hydrogenation, i.e., increasing the distance of adjacent Pd atoms (dPd-a-Pd ) for configuration matching in acetylene semi-hydrogenation against coupling. dPd-a-Pd is identified as a structural descriptor for describing the competitiveness for reaction pathways, and the increased dPd-a-Pd prefers the semi-hydrogenation pathway due to simultaneously promoted C2 H4 desorption and the destabilized transition state of the C2 H3 * coupling. Spectroscopic, kinetics and electronic structure studies reveal that increasing dPd-a-Pd to 3.31 Å delivers superior selectivity and stability due to energy matching and appropriate hybridization of Pd 4d with In 2s and, especially, 2p orbitals.
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Affiliation(s)
- Xiaohu Ge
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Yueqiang Cao
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Kelin Yan
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Yurou Li
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Lihui Zhou
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Sheng Dai
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Jing Zhang
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Xueqing Gong
- Key Laboratory for Advanced Materials, Centre for Computational Chemistry and Research Institute of Industrial Catalysis, East China University of Science and Technology, Shanghai, 200237, China
| | - Gang Qian
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Xinggui Zhou
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Weikang Yuan
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Xuezhi Duan
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, China
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8
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Casanova AVK, M.T. Cazanova C, dos Santos LRM, Almeida MBB, de Souza MN, Lam YL, Pereira MM. N-Butyl-cyclohexane as a probe molecule to evaluate fresh and deactivated zeolite acid catalysts. REACTION KINETICS MECHANISMS AND CATALYSIS 2022. [DOI: 10.1007/s11144-022-02290-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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9
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Li Y, Yan K, Cao Y, Ge X, Zhou X, Yuan W, Chen D, Duan X. Mechanistic and Atomic-Level Insights into Semihydrogenation Catalysis to Light Olefins. ACS Catal 2022. [DOI: 10.1021/acscatal.2c03750] [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)
- Yurou Li
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Kelin Yan
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Yueqiang Cao
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Xiaohu Ge
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Xinggui Zhou
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Weikang Yuan
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - De Chen
- Department of Chemical Engineering, Norwegian University of Science and Technology, Trondheim 7491, Norway
| | - Xuezhi Duan
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
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10
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Maru K, Kalla S, Jangir R. MOF/POM hybrids as catalysts for organic transformations. Dalton Trans 2022; 51:11952-11986. [PMID: 35916617 DOI: 10.1039/d2dt01895k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Insertion of molecular metal oxides, e.g. polyoxometalates (POMs), into metal-organic frameworks (MOFs) opens up new research opportunities in various fields, particularly in catalysis. POM/MOF composites have strong acidity, oxygen-rich surface, and redox capacity due to typical characteristics of POMs and the large surface area, highly organized structures, tunable pore size, and shape are due to MOFs. Such hybrid materials have gained a lot of attention due to astonishing structural features, and hence have potential applications in organic catalysis, sorption and separation, proton conduction, magnetism, lithium-ion batteries, supercapacitors, electrochemistry, medicine, bio-fuel, and so on. The exceptional chemical and physical characteristics of POMOFs make them useful as catalysts in simple organic transformations with high capacity and selectivity. Here, the thorough catalytic study starts with a brief introduction related to POMs and MOFs, and is followed by the synthetic strategies and applications of these materials in several catalytic organic transformations. Furthermore, catalytic conversions like oxidation, condensation, esterification, and some other types of catalytic reactions including photocatalytic reactions are discussed in length with their plausible catalytic mechanisms. The disadvantages of the POMOFs and difficulties faced in the field have also been explored briefly from our perspectives.
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Affiliation(s)
- Ketan Maru
- Sardar Vallabhbhai National Institute of Technology, Ichchanath, Surat-395 007, Gujarat, India.
| | - Sarita Kalla
- Sardar Vallabhbhai National Institute of Technology, Ichchanath, Surat-395 007, Gujarat, India.
| | - Ritambhara Jangir
- Sardar Vallabhbhai National Institute of Technology, Ichchanath, Surat-395 007, Gujarat, India.
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11
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12
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Toward accurate and efficient dynamic computational strategy for heterogeneous catalysis: Temperature-dependent thermodynamics and kinetics for the chemisorbed on-surface CO. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.03.080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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13
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Das TK, Das NC. Advances on catalytic reduction of 4-nitrophenol by nanostructured materials as benchmark reaction. INTERNATIONAL NANO LETTERS 2022. [DOI: 10.1007/s40089-021-00362-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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14
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Narangoda P, Spanos I, Masa J, Schlögl R, Zeradjanin AR. Electrocatalysis Beyond 2020: How to Tune the Preexponential Frequency Factor. ChemElectroChem 2021. [DOI: 10.1002/celc.202101278] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Praveen Narangoda
- Max Planck Institute for Chemical Energy Conversion Stiftstrasse 34–36 45470 Mülheim an der Ruhr Germany
| | - Ioannis Spanos
- Max Planck Institute for Chemical Energy Conversion Stiftstrasse 34–36 45470 Mülheim an der Ruhr Germany
| | - Justus Masa
- Max Planck Institute for Chemical Energy Conversion Stiftstrasse 34–36 45470 Mülheim an der Ruhr Germany
| | - Robert Schlögl
- Max Planck Institute for Chemical Energy Conversion Stiftstrasse 34–36 45470 Mülheim an der Ruhr Germany
- Fritz-Haber-Institut der Max-Planck Gesellschaft Faradayweg 4–6 14195 Berlin Germany
| | - Aleksandar R. Zeradjanin
- Max Planck Institute for Chemical Energy Conversion Stiftstrasse 34–36 45470 Mülheim an der Ruhr Germany
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15
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Jena MK, Kumar V, Liu S, Li CZ, Vuthaluru H. Mechanistic Insights into the Kinetic Compensation Effects during the Gasification of Loy Yang Brown Coal Char in O 2. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c03569] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Manoj Kumar Jena
- Fuels and Energy Technology Institute, WASM−Minerals, Energy and Chemical Engineering, Curtin University, P.O. Box U1987, Perth, Western Australia 6845, Australia
- Department of Chemical Engineering, Indian Institute of Technology (Indian School of Mines), Dhanbad, Jharkhand 826004, India
| | - Vineet Kumar
- Department of Chemical Engineering, Indian Institute of Technology (Indian School of Mines), Dhanbad, Jharkhand 826004, India
| | - Shaomin Liu
- Fuels and Energy Technology Institute, WASM−Minerals, Energy and Chemical Engineering, Curtin University, P.O. Box U1987, Perth, Western Australia 6845, Australia
| | - Chun-Zhu Li
- Fuels and Energy Technology Institute, WASM−Minerals, Energy and Chemical Engineering, Curtin University, P.O. Box U1987, Perth, Western Australia 6845, Australia
| | - Hari Vuthaluru
- Fuels and Energy Technology Institute, WASM−Minerals, Energy and Chemical Engineering, Curtin University, P.O. Box U1987, Perth, Western Australia 6845, Australia
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16
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Studies into the kinetic compensation effects of Loy Yang Brown coal during gasification in a steam environment – A mechanistic view. CHEMICAL ENGINEERING JOURNAL ADVANCES 2021. [DOI: 10.1016/j.ceja.2021.100159] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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17
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Petit S, Thomas C, Millot Y, Averseng F, Brouri D, Krafft J, Dzwigaj S, Rousse G, Laberty‐Robert C, Costentin G. Synergistic Effect Between Ca
4
V
4
O
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and Vanadium‐Substituted Hydroxyapatite in the Oxidative Dehydrogenation of Propane. ChemCatChem 2021. [DOI: 10.1002/cctc.202100807] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Sarah Petit
- Sorbonne Université CNRS Laboratoire Réactivité de Surface LRS F-75005 Paris France
- Sorbonne Université CNRS Laboratoire Chimie de la Matière Condensée de Paris LCMCP F-75005 Paris France
| | - Cyril Thomas
- Sorbonne Université CNRS Laboratoire Réactivité de Surface LRS F-75005 Paris France
| | - Yannick Millot
- Sorbonne Université CNRS Laboratoire Réactivité de Surface LRS F-75005 Paris France
| | - Frederic Averseng
- Sorbonne Université CNRS Laboratoire Réactivité de Surface LRS F-75005 Paris France
| | - Dalil Brouri
- Sorbonne Université CNRS Laboratoire Réactivité de Surface LRS F-75005 Paris France
| | - Jean‐Marc Krafft
- Sorbonne Université CNRS Laboratoire Réactivité de Surface LRS F-75005 Paris France
| | - Stanislaw Dzwigaj
- Sorbonne Université CNRS Laboratoire Réactivité de Surface LRS F-75005 Paris France
| | - Gwenaelle Rousse
- Sorbonne Université Collège de France, Chimie du Solide et de l'énergie, Collège de France 75231 Paris France
| | - Christel Laberty‐Robert
- Sorbonne Université CNRS Laboratoire Chimie de la Matière Condensée de Paris LCMCP F-75005 Paris France
| | - Guylène Costentin
- Sorbonne Université CNRS Laboratoire Réactivité de Surface LRS F-75005 Paris France
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18
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Alekseeva S, Strach M, Nilsson S, Fritzsche J, Zhdanov VP, Langhammer C. Grain-growth mediated hydrogen sorption kinetics and compensation effect in single Pd nanoparticles. Nat Commun 2021; 12:5427. [PMID: 34521841 PMCID: PMC8440611 DOI: 10.1038/s41467-021-25660-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Accepted: 08/19/2021] [Indexed: 12/28/2022] Open
Abstract
Grains constitute the building blocks of polycrystalline materials and their boundaries determine bulk physical properties like electrical conductivity, diffusivity and ductility. However, the structure and evolution of grains in nanostructured materials and the role of grain boundaries in reaction or phase transformation kinetics are poorly understood, despite likely importance in catalysis, batteries and hydrogen energy technology applications. Here we report an investigation of the kinetics of (de)hydriding phase transformations in individual Pd nanoparticles. We find dramatic evolution of single particle grain morphology upon cyclic exposure to hydrogen, which we identify as the reason for the observed rapidly slowing sorption kinetics, and as the origin of the observed kinetic compensation effect. These results shed light on the impact of grain growth on kinetic processes occurring inside nanoparticles, and provide mechanistic insight in the observed kinetic compensation effect. Grains are the building blocks of crystalline solids. Here the authors show how hydrogen-sorption induced grain-growth in Pd nanoparticles slows down the hydrogen sorption kinetics and constitutes the physical origin of corresponding kinetic compensation.
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Affiliation(s)
- Svetlana Alekseeva
- Department of Physics, Chalmers University of Technology, Göteborg, Sweden
| | - Michal Strach
- Department of Physics, Chalmers University of Technology, Göteborg, Sweden
| | - Sara Nilsson
- Department of Physics, Chalmers University of Technology, Göteborg, Sweden
| | - Joachim Fritzsche
- Department of Physics, Chalmers University of Technology, Göteborg, Sweden
| | - Vladimir P Zhdanov
- Department of Physics, Chalmers University of Technology, Göteborg, Sweden.,Boreskov Institute of Catalysis, Russian Academy of Sciences, Novosibirsk, Russia
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19
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Zeradjanin AR, Narangoda P, Spanos I, Masa J, Schlögl R. Expanding the frontiers of hydrogen evolution electrocatalysis–searching for the origins of electrocatalytic activity in the anomalies of the conventional model. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.138583] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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20
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Fu W, Wang Q, Chen W, Qian G, Zhang J, Chen D, Yuan W, Zhou X, Duan X. Engineering Ru atomic structures toward enhanced kinetics of hydrogen generation. Chem Eng Sci 2021. [DOI: 10.1016/j.ces.2021.116507] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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21
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Roeder GJ, Kelly HR, Yang G, Bauer TJ, Haller GL, Batista VS, Baráth E. Selective Heterogeneous Transfer Hydrogenation from Tertiary Amines to Alkynes. ACS Catal 2021. [DOI: 10.1021/acscatal.0c05186] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Gabriel J. Roeder
- Department of Chemistry and Catalysis Research Center, Technische Universität München, Lichtenbergstraβe 4, Garching D-85748, Germany
| | - H. Ray Kelly
- Department of Chemistry, Yale University, 225 Prospect Street, P.O. Box 208107, New Haven, Connecticut 06520, United States
| | - Guoju Yang
- Department of Chemistry and Catalysis Research Center, Technische Universität München, Lichtenbergstraβe 4, Garching D-85748, Germany
| | - Thomas J. Bauer
- Department of Chemistry and Catalysis Research Center, Technische Universität München, Lichtenbergstraβe 4, Garching D-85748, Germany
| | - Gary L. Haller
- Department of Chemistry and Catalysis Research Center, Technische Universität München, Lichtenbergstraβe 4, Garching D-85748, Germany
- Department of Chemical and Environmental Engineering, Yale University, 9 Hillhouse Ave., P.O. Box 208286, New Haven, Connecticut 06520, United States
| | - Victor S. Batista
- Department of Chemistry, Yale University, 225 Prospect Street, P.O. Box 208107, New Haven, Connecticut 06520, United States
| | - Eszter Baráth
- Department of Chemistry and Catalysis Research Center, Technische Universität München, Lichtenbergstraβe 4, Garching D-85748, Germany
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22
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Hu J, Yu L, Deng J, Wang Y, Cheng K, Ma C, Zhang Q, Wen W, Yu S, Pan Y, Yang J, Ma H, Qi F, Wang Y, Zheng Y, Chen M, Huang R, Zhang S, Zhao Z, Mao J, Meng X, Ji Q, Hou G, Han X, Bao X, Wang Y, Deng D. Sulfur vacancy-rich MoS2 as a catalyst for the hydrogenation of CO2 to methanol. Nat Catal 2021. [DOI: 10.1038/s41929-021-00584-3] [Citation(s) in RCA: 108] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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23
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A kinetic study on the methanol conversion to dimethyl ether over H-ZSM-5 zeolite. CHEMICAL PAPERS 2021. [DOI: 10.1007/s11696-021-01586-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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24
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Behravesh E, Melander MM, Wärnå J, Salmi T, Honkala K, Murzin DY. Oxidative dehydrogenation of ethanol on gold: Combination of kinetic experiments and computation approach to unravel the reaction mechanism. J Catal 2021. [DOI: 10.1016/j.jcat.2020.07.022] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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25
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Structure and Stability of Gas Adsorption Complexes in Periodic Porous Solids as Studied by VTIR Spectroscopy: An Overview. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10238589] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Variable-temperature infrared (VTIR) spectroscopy is an instrumental technique that enables structural characterization of gas-solid adsorption complexes by analysis of meaningful vibrational modes, and simultaneous determination of the standard enthalpy change (ΔH0) involved in the gas adsorption process, which allows one to quantify the stability of the corresponding complex. This is achieved by a van’t Hoff analysis of a set of IR spectra recorded over a sufficiently large temperature range. Herein, the use of this versatile spectroscopic technique is demonstrated by reviewing its application to the study of carbon monoxide, carbon dioxide and dinitrogen adsorption on several (alkaline) zeolites, which can be regarded as the archetype of periodic porous solids.
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26
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Griessen R, Boelsma C, Schreuders H, Broedersz CP, Gremaud R, Dam B. Single Quality Factor for Enthalpy-Entropy Compensation, Isoequilibrium and Isokinetic Relationships. Chemphyschem 2020; 21:1632-1643. [PMID: 32573925 PMCID: PMC7522686 DOI: 10.1002/cphc.202000390] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 06/19/2020] [Indexed: 12/04/2022]
Abstract
Enthalpy-entropy compensation (EEC) is very often encountered in chemistry, biology and physics. Its origin is widely discussed since it would allow, for example, a very accurate tuning of the thermodynamic properties as a function of the reactants. However, EEC is often discarded as a statistical artefact, especially when only a limited temperature range is considered. We show that the likeliness of a statistical origin of an EEC can be established with a compensation quality factor (CQF) that depends only on the measured enthalpies and entropies and the experimental temperature range. This is directly derived from a comparison of the CQF with threshold values obtained from a large number of simulations with randomly generated Van 't Hoff plots. The value of CQF is furthermore a direct measure of the existence of a genuine isoequilibrium or isokinetic relationship.
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Affiliation(s)
- Ronald Griessen
- Condensed Matter PhysicsFaculty of SciencesVU University AmsterdamDe Boelelaan 10811081 HVAmsterdamThe Netherlands
| | - Christiaan Boelsma
- Tata Steel, Research and DevelopmentPO Box 100001970 CAIJmuidenThe Netherlands
| | - Herman Schreuders
- Materials for Energy Conversion and StorageDepartment of Chemical Engineering, Faculty of Applied SciencesDelft University of TechnologyVan der Maasweg 92629 HZDelftThe Netherlands
| | - Chase P. Broedersz
- Arnold-Sommerfeld-Center for Theoretical Physics and Center for NanoScienceLudwig-Maximilians-Universität München80333MunichGermany
| | - Robin Gremaud
- ABB Switzerland LtdCorporate ResearchSegelhofstrasse 1 K5405Baden-DättwilSwitzerland
| | - Bernard Dam
- Materials for Energy Conversion and StorageDepartment of Chemical Engineering, Faculty of Applied SciencesDelft University of TechnologyVan der Maasweg 92629 HZDelftThe Netherlands
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27
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Xiao Y, Hong J, Wang X, Chen T, Hyeon T, Xu W. Revealing Kinetics of Two-Electron Oxygen Reduction Reaction at Single-Molecule Level. J Am Chem Soc 2020; 142:13201-13209. [PMID: 32628842 DOI: 10.1021/jacs.0c06020] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
By combining single-molecule fluorescence microscopy with traditional electrochemical methods, herein we report on the investigation of the electrocatalytic kinetics of two-electron (2e) pathway of oxygen reduction reaction (ORR) on a single Fe3O4 nanoparticle. The kinetic parameters for two-electron ORR process are successfully derived at the single-particle level, and a potential dependence of dynamic heterogeneity among individual nanoparticles is revealed. Furthermore, the performance stability of individual Fe3O4 nanoparticles for 2e ORR process is studied. This study deepens our understanding to the electrocatalytic ORR process, especially the 2e pathway at single-molecule and single-particle levels.
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Affiliation(s)
- Yi Xiao
- State Key Laboratory of Electroanalytical Chemistry and Jilin Province Key Laboratory of Low Carbon Chemical Power, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, P. R. China.,University of Science and Technology of China, Anhui 230026, China
| | - Jaeyoung Hong
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea.,School of Chemical and Biological Engineering, and Institute of Chemical Processes, Seoul National University, Seoul 08826, Republic of Korea
| | - Xiao Wang
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea.,School of Chemical and Biological Engineering, and Institute of Chemical Processes, Seoul National University, Seoul 08826, Republic of Korea
| | - Tao Chen
- Institute of Physics-Biophysics, Georg-August- Universität, 37077 Göttingen, Germany
| | - Taeghwan Hyeon
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea.,School of Chemical and Biological Engineering, and Institute of Chemical Processes, Seoul National University, Seoul 08826, Republic of Korea
| | - Weilin Xu
- State Key Laboratory of Electroanalytical Chemistry and Jilin Province Key Laboratory of Low Carbon Chemical Power, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, P. R. China.,University of Science and Technology of China, Anhui 230026, China
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28
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Shah M, Mondal P, Nayak AK, Bordoloi A. Advanced titania composites for efficient CO2 reforming with methane: Statistical method vs. experiment. J CO2 UTIL 2020. [DOI: 10.1016/j.jcou.2020.101160] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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29
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Kinetic Analysis of 4-Nitrophenol Reduction by "Water-Soluble" Palladium Nanoparticles. NANOMATERIALS 2020; 10:nano10061169. [PMID: 32549394 PMCID: PMC7353196 DOI: 10.3390/nano10061169] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 06/10/2020] [Accepted: 06/12/2020] [Indexed: 11/21/2022]
Abstract
The most important model catalytic reaction to test the catalytic activity of metal nanoparticles is the reduction of 4-nitrophenol to 4-aminophenol by sodium borohydride as it can be precisely monitored by UV–vis spectroscopy with high accuracy. This work presents the catalytic reduction of 4-nitrophenol (4-Nip) to 4-aminophenol (4-Amp) in the presence of Pd nanoparticles and sodium borohydride as reductants in water. We first evaluate the kinetics using classical pseudo first-order kinetics. We report the effects of different initial 4-Nip and NaBH4 concentrations, reaction temperatures, and mass of Pd nanoparticles used for catalytic reduction. The thermodynamic parameters (activation energy, enthalpy, and entropy) were also determined. Results show that the kinetics are highly dependent on the reactant ratio and that pseudo first-order simplification is not always fit to describe the kinetics of the reaction. Assuming that all steps of this reaction proceed only on the surface of Pd nanoparticles, we applied a Langmuir−Hinshelwood model to describe the kinetics of the reaction. Experimental data of the decay rate of 4-nitrophenol were successfully fitted to the theoretical values obtained from the Langmuir–Hinshelwood model and all thermodynamic parameters, the true rate constant k, as well as the adsorption constants of 4-Nip, and BH4− (K4-Nip and KBH4−) were determined for each temperature.
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30
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Selective catalytic reduction of NO by ammonia and NO oxidation Over CoOx/CeO2 catalysts. MOLECULAR CATALYSIS 2020. [DOI: 10.1016/j.mcat.2019.110664] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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31
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32
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Cao Y, Fu W, Ren Z, Sui Z, Zhou J, Luo J, Duan X, Zhou X. Tailoring electronic properties and kinetics behaviors of Pd/N‐CNTs catalysts for selective hydrogenation of acetylene. AIChE J 2019. [DOI: 10.1002/aic.16857] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Yueqiang Cao
- State Key Laboratory of Chemical EngineeringEast China University of Science and Technology Shanghai China
| | - Wenzhao Fu
- State Key Laboratory of Chemical EngineeringEast China University of Science and Technology Shanghai China
| | - Zhouhong Ren
- Institute for New Energy Materials & Low‐Carbon Technologies, Tianjin University of Technology Tianjin China
| | - Zhijun Sui
- State Key Laboratory of Chemical EngineeringEast China University of Science and Technology Shanghai China
| | - Jinghong Zhou
- State Key Laboratory of Chemical EngineeringEast China University of Science and Technology Shanghai China
| | - Jun Luo
- Institute for New Energy Materials & Low‐Carbon Technologies, Tianjin University of Technology Tianjin China
| | - Xuezhi Duan
- State Key Laboratory of Chemical EngineeringEast China University of Science and Technology Shanghai China
| | - Xinggui Zhou
- State Key Laboratory of Chemical EngineeringEast China University of Science and Technology Shanghai China
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33
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Zhang B, Sun G, Ding S, Asakura H, Zhang J, Sautet P, Yan N. Atomically Dispersed Pt 1-Polyoxometalate Catalysts: How Does Metal-Support Interaction Affect Stability and Hydrogenation Activity? J Am Chem Soc 2019; 141:8185-8197. [PMID: 31030515 DOI: 10.1021/jacs.9b00486] [Citation(s) in RCA: 77] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Unlike nanostructured metal catalysts, supported single-atom catalysts (SACs) contain only atomically dispersed metal atoms, hinting at much more pronounced metal-support effects. Herein, we take a series of polyoxometalate-supported Pt catalysts as examples to quantitatively investigate the stability of Pt atoms on oxide supports and how the Pt-support interaction influences the catalytic performance. For this entire series, we show that the Pt atoms prefer to stay at a 4-fold hollow site of one polyoxometalate molecule and that the least adsorption energy to obtain sintering-resistant Pt SACs is 5.50 eV, which exactly matches the cohesive energy of bulk Pt metal. Further, we compared their catalytic performance in several hydrogenation reactions and simulated the reaction pathways of propene hydrogenation by density functional theory (DFT) calculations. Both experimental and theoretical approaches suggest that despite the Pt1-support interactions being different, the reaction pathways of various Pt1-polyoxometalate catalysts are very similar and their effective reaction barriers are close to each other and as low as 24 kJ/mol, indicating the possibility of obtaining SACs with improved stability without compromising activity. DFT calculations show that all reaction elementary steps take place only on the Pt atom without involving neighboring O atoms and that hydrogenation proceeds from the molecularly adsorbed H2 species. Pt SACs give a weaker H2 adsorption energy than Pt clusters or surfaces, resulting in small adsorption equilibrium constants and small apparent activation barriers, which agree between experiment and theory.
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Affiliation(s)
- Bin Zhang
- Department of Chemical and Biomolecular Engineering , National University of Singapore , 4 Engineering Drive 4 , 117585 Singapore
| | - Geng Sun
- Department of Chemical and Biomolecular Engineering , University of California, Los Angeles , Los Angeles , California 90095 , United States
| | - Shipeng Ding
- Department of Chemical and Biomolecular Engineering , National University of Singapore , 4 Engineering Drive 4 , 117585 Singapore
| | - Hiroyuki Asakura
- Elements Strategy Initiative for Catalysts & Batteries (ESICB) , Kyoto University , Kyoto 615-8245 , Japan.,Department of Molecular Engineering, Graduate School of Engineering , Kyoto University , Kyotodaigaku Katsura, Nishikyo-ku, Kyoto 615-8510 , Japan
| | - Jia Zhang
- Institute of High Performance Computing , Agency for Science, Technology and Research , 1 Fusionopolis Way #16-16 Connexis , 138632 , Singapore
| | - Philippe Sautet
- Department of Chemical and Biomolecular Engineering , University of California, Los Angeles , Los Angeles , California 90095 , United States.,Department of Chemistry and Biochemistry , University of California, Los Angeles , Los Angeles , California 90095 , United States
| | - Ning Yan
- Department of Chemical and Biomolecular Engineering , National University of Singapore , 4 Engineering Drive 4 , 117585 Singapore
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34
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Albinsson D, Nilsson S, Antosiewicz TJ, Zhdanov VP, Langhammer C. Heterodimers for in Situ Plasmonic Spectroscopy: Cu Nanoparticle Oxidation Kinetics, Kirkendall Effect, and Compensation in the Arrhenius Parameters. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2019; 123:6284-6293. [PMID: 30906496 PMCID: PMC6428146 DOI: 10.1021/acs.jpcc.9b00323] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 02/14/2019] [Indexed: 05/12/2023]
Abstract
The ability to study oxidation, reduction, and other chemical transformations of nanoparticles in real time and under realistic conditions is a nontrivial task due to their small dimensions and the often challenging environment in terms of temperature and pressure. For scrutinizing oxidation of metal nanoparticles, visible light optical spectroscopy based on the plasmonic properties of the metal has been established as a suitable method. However, directly relying on the plasmonic resonance of metal nanoparticles as a built-in probe to track oxidation has a number of drawbacks, including the loss of optical contrast in the late oxidation stages. To address these intrinsic limitations, we present a plasmonic heterodimer-based nanospectroscopy approach, which enables continuous self-referencing by using polarized light to eliminate parasitic signals and provides large optical contrast all the way to complete oxidation. Using Au-Cu heterodimers and combining experiments with finite-difference time-domain simulations, we quantitatively analyze the oxidation kinetics of ca. 30 nm sized Cu nanoparticles up to complete oxidation. Taking the Kirkendall effect into account, we extract the corresponding apparent Arrhenius parameters at various extents of oxidation and find that they exhibit a significant compensation effect, implying that changes in the oxidation mechanism occur as oxidation progresses and the structure of the formed oxide evolves. In a wider perspective, our work promotes the use of model-system-type in situ optical plasmonic spectroscopy experiments in combination with electrodynamics simulations to quantitatively analyze and mechanistically interpret oxidation of metal nanoparticles and the corresponding kinetics in demanding chemical environments, such as in heterogeneous catalysis.
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Affiliation(s)
- David Albinsson
- Department
of Physics, Chalmers University of Technology, 412 96 Göteborg, Sweden
| | - Sara Nilsson
- Department
of Physics, Chalmers University of Technology, 412 96 Göteborg, Sweden
| | | | - Vladimir P. Zhdanov
- Department
of Physics, Chalmers University of Technology, 412 96 Göteborg, Sweden
- Boreskov
Institute of Catalysis, Russian Academy
of Sciences, Novosibirsk 630090, Russia
| | - Christoph Langhammer
- Department
of Physics, Chalmers University of Technology, 412 96 Göteborg, Sweden
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35
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Cruz C, Barragán D, Magnanelli E, Lervik A, Kjelstrup S. Non-equilibrium thermodynamics as a tool to compute temperature at the catalyst surface. Phys Chem Chem Phys 2019; 21:15195-15205. [DOI: 10.1039/c9cp02389e] [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
The NET theory predicts the coupling between reaction rates and thermal driving forces and gives new insights into why Arrhenius plots may turn out to be non-linear.
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Affiliation(s)
- Carolina Cruz
- Escuela de Química
- Facultad de Ciencias
- Universidad Nacional de Colombia
- Carrera 65 No 59A-110
- Medellin
| | - Daniel Barragán
- Escuela de Química
- Facultad de Ciencias
- Universidad Nacional de Colombia
- Carrera 65 No 59A-110
- Medellin
| | - Elisa Magnanelli
- Department of Chemistry
- Norwegian University of Science and Technology
- Norway
| | - Anders Lervik
- Department of Chemistry
- Norwegian University of Science and Technology
- Norway
| | - Signe Kjelstrup
- Department of Chemistry
- Norwegian University of Science and Technology
- Norway
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36
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Tacacima J, Derenzo S, Poco JGR. Synthesis of HMF from fructose using Purolite® strong acid catalyst: Comparison between BTR and PBR reactor type for kinetics data acquisition. MOLECULAR CATALYSIS 2018. [DOI: 10.1016/j.mcat.2017.12.021] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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37
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Hu Z, Tan S, Mi R, Li X, Li D, Yang B. Solvent-Controlled Reactivity of Au/CeO2 Towards Hydrogenation of p-Chloronitrobenzene. Catal Letters 2018. [DOI: 10.1007/s10562-018-2351-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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38
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39
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Affiliation(s)
- Aaron Sattler
- Corporate Strategic Research, ExxonMobil Research & Engineering Company, 1545 Route 22 East, Annandale, New Jersey 08801, United States
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40
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Nadeem MA, Idriss H. Photo-thermal reactions of ethanol over Ag/TiO2 catalysts. The role of silver plasmon resonance in the reaction kinetics. Chem Commun (Camb) 2018; 54:5197-5200. [DOI: 10.1039/c8cc01814f] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Photo-thermal catalytic reactions of ethanol over Ag/TiO2 were conducted in order to probe into the role of plasmonic resonance response in the reaction kinetics.
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Affiliation(s)
- M. A. Nadeem
- Corporate Research & Development (CRD)
- Saudi Basic Industries Corporation (SABIC) KAUST
- Thuwal 23955-6900
- Saudi Arabia
| | - H. Idriss
- Corporate Research & Development (CRD)
- Saudi Basic Industries Corporation (SABIC) KAUST
- Thuwal 23955-6900
- Saudi Arabia
- Department of Chemistry
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41
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Kargarfard N, Diedrich N, Rupp H, Döhler D, Binder WH. Improving Kinetics of "Click-Crosslinking" for Self-Healing Nanocomposites by Graphene-Supported Cu-Nanoparticles. Polymers (Basel) 2017; 10:E17. [PMID: 30966054 PMCID: PMC6414871 DOI: 10.3390/polym10010017] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Revised: 12/20/2017] [Accepted: 12/21/2017] [Indexed: 11/16/2022] Open
Abstract
Investigation of the curing kinetics of crosslinking reactions and the development of optimized catalyst systems is of importance for the preparation of self-healing nanocomposites, able to significantly extend their service lifetimes. Here we study different modified low molecular weight multivalent azides for a capsule-based self-healing approach, where self-healing is mediated by graphene-supported copper-nanoparticles, able to trigger "click"-based crosslinking of trivalent azides and alkynes. When monitoring the reaction kinetics of the curing reaction via reactive dynamic scanning calorimetry (DSC), it was found that the "click-crosslinking" reactivity decreased with increasing chain length of the according azide. Additionally, we could show a remarkable "click" reactivity already at 0 °C, highlighting the potential of click-based self-healing approaches. Furthermore, we varied the reaction temperature during the preparation of our tailor-made graphene-based copper(I) catalyst to further optimize its catalytic activity. With the most active catalyst prepared at 700 °C and the optimized set-up of reactants on hand, we prepared capsule-based self-healing epoxy nanocomposites.
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Affiliation(s)
- Neda Kargarfard
- Faculty of Natural Science II, Martin Luther University Halle-Wittenberg, Von-Danckelmann-Platz 4, D-06120 Halle (Saale), Germany.
- Leibniz-Institut für Polymerforschung Dresden e. V., Abteilung Reaktive Verarbeitung, Hohe Str. 6, D-01069 Dresden, Germany.
| | - Norman Diedrich
- Faculty of Natural Science II, Martin Luther University Halle-Wittenberg, Von-Danckelmann-Platz 4, D-06120 Halle (Saale), Germany.
| | - Harald Rupp
- Faculty of Natural Science II, Martin Luther University Halle-Wittenberg, Von-Danckelmann-Platz 4, D-06120 Halle (Saale), Germany.
| | - Diana Döhler
- Faculty of Natural Science II, Martin Luther University Halle-Wittenberg, Von-Danckelmann-Platz 4, D-06120 Halle (Saale), Germany.
| | - Wolfgang H Binder
- Faculty of Natural Science II, Martin Luther University Halle-Wittenberg, Von-Danckelmann-Platz 4, D-06120 Halle (Saale), Germany.
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Garrone E, Delgado MR, Bonelli B, Arean CO. Probing Gas Adsorption in Zeolites by Variable-Temperature IR Spectroscopy: An Overview of Current Research. Molecules 2017; 22:molecules22091557. [PMID: 28914812 PMCID: PMC6151591 DOI: 10.3390/molecules22091557] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Revised: 09/06/2017] [Accepted: 09/11/2017] [Indexed: 11/24/2022] Open
Abstract
The current state of the art in the application of variable-temperature IR (VTIR) spectroscopy to the study of (i) adsorption sites in zeolites, including dual cation sites; (ii) the structure of adsorption complexes and (iii) gas-solid interaction energy is reviewed. The main focus is placed on the potential use of zeolites for gas separation, purification and transport, but possible extension to the field of heterogeneous catalysis is also envisaged. A critical comparison with classical IR spectroscopy and adsorption calorimetry shows that the main merits of VTIR spectroscopy are (i) its ability to provide simultaneously the spectroscopic signature of the adsorption complex and the standard enthalpy change involved in the adsorption process; and (ii) the enhanced potential of VTIR to be site specific in favorable cases.
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Affiliation(s)
- Edoardo Garrone
- Politecnico di Torino, The Department of Applied Science And Technology and INSTM Unit of Torino-Politecnico, Corso Duca degli Abruzzi 24, 10129 Turin, Italy.
| | - Montserrat R Delgado
- Department of Chemistry, University of the Balearic Islands, E-07122 Palma, Spain.
| | - Barbara Bonelli
- Politecnico di Torino, The Department of Applied Science And Technology and INSTM Unit of Torino-Politecnico, Corso Duca degli Abruzzi 24, 10129 Turin, Italy.
| | - Carlos O Arean
- Department of Chemistry, University of the Balearic Islands, E-07122 Palma, Spain.
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Gehrig JC, Penedo M, Parschau M, Schwenk J, Marioni MA, Hudson EW, Hug HJ. Surface single-molecule dynamics controlled by entropy at low temperatures. Nat Commun 2017; 8:14404. [PMID: 28181501 PMCID: PMC5309842 DOI: 10.1038/ncomms14404] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Accepted: 12/23/2016] [Indexed: 11/29/2022] Open
Abstract
Configuration transitions of individual molecules and atoms on surfaces are traditionally described using an Arrhenius equation with energy barrier and pre-exponential factor (attempt rate) parameters. Characteristic parameters can vary even for identical systems, and pre-exponential factors sometimes differ by orders of magnitude. Using low-temperature scanning tunnelling microscopy (STM) to measure an individual dibutyl sulfide molecule on Au(111), we show that the differences arise when the relative position of tip apex and molecule changes by a fraction of the molecule size. Altering the tip position on that scale modifies the transition's barrier and attempt rate in a highly correlated fashion, which results in a single-molecular enthalpy-entropy compensation. Conversely, appropriately positioning the STM tip allows selecting the operating point on the compensation line and modifying the transition rates. The results highlight the need to consider entropy in transition rates of single molecules, even at low temperatures. STM is capable of imaging the configurations of molecules on surfaces and measuring the rate of transitions between them. Here the authors demonstrate that, controlled by the STM tip position, the entropic and conservative forces on the molecule can modify the rate by orders of magnitude.
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Affiliation(s)
- J C Gehrig
- Empa, Swiss Federal Laboratories for Materials Science and Technology, CH-8600 Dübendorf, Switzerland
| | - M Penedo
- Empa, Swiss Federal Laboratories for Materials Science and Technology, CH-8600 Dübendorf, Switzerland
| | - M Parschau
- Empa, Swiss Federal Laboratories for Materials Science and Technology, CH-8600 Dübendorf, Switzerland
| | - J Schwenk
- Empa, Swiss Federal Laboratories for Materials Science and Technology, CH-8600 Dübendorf, Switzerland
| | - M A Marioni
- Empa, Swiss Federal Laboratories for Materials Science and Technology, CH-8600 Dübendorf, Switzerland
| | - E W Hudson
- Empa, Swiss Federal Laboratories for Materials Science and Technology, CH-8600 Dübendorf, Switzerland.,Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - H J Hug
- Empa, Swiss Federal Laboratories for Materials Science and Technology, CH-8600 Dübendorf, Switzerland.,Department of Physics, University of Basel, CH-4056 Basel, Switzerland
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45
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Bond GC, Garcia JJ. Hydrogenolysis of alkanes: reactions of n-butane on Ru/zeolite catalysts. Catal Sci Technol 2017. [DOI: 10.1039/c7cy00677b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ru/13X zeolite catalysts containing 0.6, 2 and 5.7% Ru prepared by reduction or decomposition of the hexammine complex are active and stable for n-butane hydrogenolysis between 400 and 460 K; oxidation leads to greatly increased activity.
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Affiliation(s)
| | - Juan J. Garcia
- Department of Chemistry
- Brunel University
- Uxbridge UB8 3PH
- UK
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46
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Zhou H, Lou H, Lu W. Improving the catalytic efficiency of carbon-based active sites by trace oxide promoters for highly productive olefin synthesis. Catal Sci Technol 2017. [DOI: 10.1039/c6cy02562e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The catalytic ODH activation energy on CNTs significantly decreased by the introduction of metal oxides. The propane turn-over efficiency of each original carbon-based active site consequently increased exponentially.
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Affiliation(s)
- Hang Zhou
- Department of Chemistry
- Institute of Catalysis
- Zhejiang University
- Hangzhou 310028
- PR China
| | - Hui Lou
- Department of Chemistry
- Institute of Catalysis
- Zhejiang University
- Hangzhou 310028
- PR China
| | - Weimin Lu
- Department of Chemistry
- Institute of Catalysis
- Zhejiang University
- Hangzhou 310028
- PR China
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47
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Pera-Titus M. Direct inference of site strength in basic solids upon CO2 adsorption: enthalpy-entropy compensation effects. Phys Chem Chem Phys 2016; 18:22548-56. [PMID: 27468818 DOI: 10.1039/c6cp03941c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The adsorption of CO2 coupled to calorimetry is a state-of-the-art technique for characterizing the basic properties of solids. In this paper, we show that the differential heat and entropy curves measured upon CO2 adsorption on a basic solid can be reasonably estimated from a single CO2 isotherm with no need for any independent heat (calorimetric) measurement. Our method relies on two important observations: (1) formulation of generalized F-H-TS thermodynamic isotherms, the former (F) being directly generated from the raw CO2 isotherms, and (2) the presence of unexpected enthalpy-entropy compensation effects upon CO2 adsorption linking the integral enthalpy and entropy of adsorption until saturation for different solids. Our thermodynamic method has been validated using a broad library of basic solids with variable site strength and heterogeneity. Finally, a new scale of basicity is proposed using the parameters fitted from the thermodynamic isotherm (free energy basis) as descriptors of basic strength. This method opens an avenue to the inference of site strength of basic solids without the need for expensive calorimeters.
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Affiliation(s)
- M Pera-Titus
- Eco-Efficient Products and Processes Laboratory (E2P2L), UMI 3464 CNRS-Solvay, 3966 Jin Du Road, Xin Zhuang Ind. Zone, 201108 Shanghai, China.
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48
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Janda A, Vlaisavljevich B, Lin LC, Smit B, Bell AT. Effects of Zeolite Structural Confinement on Adsorption Thermodynamics and Reaction Kinetics for Monomolecular Cracking and Dehydrogenation of n-Butane. J Am Chem Soc 2016; 138:4739-56. [DOI: 10.1021/jacs.5b11355] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Amber Janda
- Department
of Chemical and Biomolecular Engineering, University of California—Berkeley, Berkeley, California 94720, United States
| | - Bess Vlaisavljevich
- Department
of Chemical and Biomolecular Engineering, University of California—Berkeley, Berkeley, California 94720, United States
| | - Li-Chiang Lin
- Department
of Process and Energy, Delft University of Technology, Leeghwaterstraat
39, 2628CB Delft, The Netherlands
| | - Berend Smit
- Department
of Chemical and Biomolecular Engineering, University of California—Berkeley, Berkeley, California 94720, United States
- Institute
of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne, Rue de l’Industrie 17, CH-1951 Sion, Switzerland
| | - Alexis T. Bell
- Department
of Chemical and Biomolecular Engineering, University of California—Berkeley, Berkeley, California 94720, United States
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49
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Kinetic compensation effects: a long term mystery and the reality. A simple kinetic consideration. REACTION KINETICS MECHANISMS AND CATALYSIS 2016. [DOI: 10.1007/s11144-016-1005-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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50
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Marakatti VS, Peter SC. Nickel–antimony nanoparticles confined in SBA-15 as highly efficient catalysts for the hydrogenation of nitroarenes. NEW J CHEM 2016. [DOI: 10.1039/c5nj03479e] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Nickel–antimony nanoparticles confined in SBA-15 are found to be highly efficient catalysts for nitroarene reduction reactions.
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Affiliation(s)
- Vijaykumar S. Marakatti
- New Chemistry Unit
- Jawaharlal Nehru Centre for Advanced Scientific Research
- Bangalore-560064
- India
| | - Sebastian C. Peter
- New Chemistry Unit
- Jawaharlal Nehru Centre for Advanced Scientific Research
- Bangalore-560064
- India
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