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Kountoupi E, Barrios AJ, Chen Z, Müller CR, Ordomsky VV, Comas-Vives A, Fedorov A. The Impact of Oxygen Surface Coverage and Carbidic Carbon on the Activity and Selectivity of Two-Dimensional Molybdenum Carbide (2D-Mo 2C) in Fischer-Tropsch Synthesis. ACS Catal 2024; 14:1834-1845. [PMID: 38327645 PMCID: PMC10845113 DOI: 10.1021/acscatal.3c03956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 12/20/2023] [Accepted: 01/03/2024] [Indexed: 02/09/2024]
Abstract
Transformations of oxygenates (CO2, CO, H2O, etc.) via Mo2C-based catalysts are facilitated by the high oxophilicity of the material; however, this can lead to the formation of oxycarbides and complicate the identification of the (most) active catalyst state and active sites. In this context, the two-dimensional (2D) MXene molybdenum carbide Mo2CTx (Tx are passivating surface groups) contains only surface Mo sites and is therefore a highly suitable model catalyst for structure-activity studies. Here, we report that the catalytic activity of Mo2CTx in Fischer-Tropsch (FT) synthesis increases with a decreasing coverage of surface passivating groups (mostly O*). The in situ removal of Tx species and its consequence on CO conversion is highlighted by the observation of a very pronounced activation of Mo2CTx (pretreated in H2 at 400 °C) under FT conditions. This activation process is ascribed to the in situ reductive defunctionalization of Tx groups reaching a catalyst state that is close to 2D-Mo2C (i.e., a material containing no passivating surface groups). Under steady-state FT conditions, 2D-Mo2C yields higher hydrocarbons (C5+ alkanes) with 55% selectivity. Alkanes up to the kerosine range form, with value of α = 0.87, which is ca. twice higher than the α value reported for 3D-Mo2C catalysts. The steady-state productivity of 2D-Mo2C to C5+ hydrocarbons is ca. 2 orders of magnitude higher relative to a reference β-Μo2C catalyst that shows no in situ activation under identical FT conditions. The passivating Tx groups of Mo2CTx can be reductively defunctionalized also by using a higher H2 pretreatment temperature of 500 °C. Yet, this approach leads to a removal of carbidic carbon (as methane), resulting in a 2D-Mo2C1-x catalyst that converts CO to CH4 with 61% selectivity in preference to C5+ hydrocarbons that are formed with only 2% selectivity. Density functional theory (DFT) results attribute the observed selectivity of 2D-Mo2C to C5+ alkanes to a higher energy barrier for the hydrogenation of surface alkyl species relative to the energy barriers for C-C coupling. The removal of O* is the rate-determining step in the FT reaction over 2D-Mo2C, and O* is favorably removed in the form of CO2 relative to H2O, consistent with the observation of a high CO2 selectivity (ca. 50%). The absence of other carbon oxygenates is explained by the energetic favoring of the direct over the hydrogen-assisted dissociative adsorption of CO.
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Affiliation(s)
- Evgenia Kountoupi
- Department
of Mechanical and Process Engineering, ETH
Zürich, Zürich CH-8092, Switzerland
| | - Alan J. Barrios
- University
of Lille, CNRS, Centrale Lille, University of Artois, UMR 8181 −
UCCS − Unité de Catalyse et Chimie du Solide, Lille 59000, France
- Laboratory
for Chemical Technology, Department of Materials, Textiles and Chemical
Engineering, Ghent University, Ghent B-9052, Belgium
| | - Zixuan Chen
- Department
of Mechanical and Process Engineering, ETH
Zürich, Zürich CH-8092, Switzerland
| | - Christoph R. Müller
- Department
of Mechanical and Process Engineering, ETH
Zürich, Zürich CH-8092, Switzerland
| | - Vitaly V. Ordomsky
- University
of Lille, CNRS, Centrale Lille, University of Artois, UMR 8181 −
UCCS − Unité de Catalyse et Chimie du Solide, Lille 59000, France
| | - Aleix Comas-Vives
- Institute
of Materials Chemistry, Technische Universität
Wien, Vienna 1060, Austria
- Departament
de Química, Universitat Autònoma
de Barcelona, Cerdanyola del Vallès 08193, Catalonia, Spain
| | - Alexey Fedorov
- Department
of Mechanical and Process Engineering, ETH
Zürich, Zürich CH-8092, Switzerland
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2
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Adsorption and infrared spectra simulations of acrylic acid over (001) surface of molybdenum carbide. Chem Phys 2022. [DOI: 10.1016/j.chemphys.2022.111798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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3
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You KE, Ammal SC, Lin Z, Heyden A. Understanding Selective Hydrodeoxygenation of 1,2- and 1,3-Propanediols on Cu/Mo 2C via Multiscale Modeling. ACS Catal 2022. [DOI: 10.1021/acscatal.2c00261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Kyung-Eun You
- Department of Chemical Engineering, University of South Carolina, Columbia, South Carolina 29208, United States
| | - Salai C. Ammal
- Department of Chemical Engineering, University of South Carolina, Columbia, South Carolina 29208, United States
| | - Zhexi Lin
- Department of Chemical Engineering, Columbia University, New York, New York 10027, United States
| | - Andreas Heyden
- Department of Chemical Engineering, University of South Carolina, Columbia, South Carolina 29208, United States
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4
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Dehydrogenation and dehydration of formic acid over orthorhombic molybdenum carbide. Catal Today 2022; 384-386:197-208. [PMID: 35992247 PMCID: PMC9380418 DOI: 10.1016/j.cattod.2021.04.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 02/24/2021] [Accepted: 04/14/2021] [Indexed: 11/20/2022]
Abstract
Formic acid (HCOOH) adsorption on β-Mo2C is exothermic and favours a configuration parallel to the surface. Once adsorbed, thermodynamics favour cleavage of the H—COOH bond to form CO. CO bonds strongly to the surface, potentially poisoning the catalyst. Therefore, kinetics favour dehydrogenation mechanism with CO2 continuously formed.
The dehydrogenation and dehydration of formic acid is investigated on the β-Mo2C (100) catalyst surface using time independent density functional theory. The energetics of the two mechanisms are calculated, and the thermochemistry and kinetics are discussed using the transition state theory. Subsequently, microkinetic modelling of the system is conducted, considering the batch reactor model. The potential energy landscape of the reaction shows a thermodynamically favourable cleavage of H—COOH to form CO; however, the kinetics show that the dehydrogenation mechanism is faster and CO2 is continuously formed. The effect of HCOOH adsorption on the surface is also analysed, in a temperature-programmed desorption, with the conversion proceeding at under 350 K and desorption of CO2 is observed with a selectivity of about 100 %, in line with the experimental reports.
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5
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Zhao J, Yin LF, Ling LX, Zhang RG, Fan MH, Wang BJ. A predicted new catalyst to replace noble metal Pd for CO oxidative coupling to DMO. Catal Sci Technol 2022. [DOI: 10.1039/d1cy01631h] [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 reaction mechanisms of CO oxidative coupling to dimethyl oxalate (DMO) on different β-Mo2C(001) based catalysts have been studied by the density functional theory (DFT) method.
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Affiliation(s)
- Juan Zhao
- College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, Shanxi, P. R. China
| | - Li-Fei Yin
- College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, Shanxi, P. R. China
| | - Li-Xia Ling
- College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, Shanxi, P. R. China
- Department of Chemical and Petroleum Engineering, University of Wyoming, 1000 E University Ave, Laramie, WY 82071, USA
| | - Ri-Guang Zhang
- State Key Laboratory of Clean and Efficient Coal Utilization, Taiyuan University of Technology, Taiyuan 030024, Shanxi, P. R. China
- State Key Laboratory of Clean and Efficient Coal Utilization, Taiyuan University of Technology, Taiyuan 030024, Shanxi, P. R. China
| | - Mao-Hong Fan
- Department of Chemical and Petroleum Engineering, University of Wyoming, 1000 E University Ave, Laramie, WY 82071, USA
| | - Bao-Jun Wang
- State Key Laboratory of Clean and Efficient Coal Utilization, Taiyuan University of Technology, Taiyuan 030024, Shanxi, P. R. China
- State Key Laboratory of Clean and Efficient Coal Utilization, Taiyuan University of Technology, Taiyuan 030024, Shanxi, P. R. China
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6
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Han W, Liu B, Chen Y, Jia Z, Wei X, Song W. Coordinatively unsaturated aluminum anchored Ru cluster for catalytic hydrogenation of benzene. J Catal 2021. [DOI: 10.1016/j.jcat.2021.05.021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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7
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A DFT study of methane conversion on Mo-terminated Mo2C carbides: Carburization vs C–C coupling. Catal Today 2021. [DOI: 10.1016/j.cattod.2020.02.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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8
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Griesser C, Li H, Wernig EM, Winkler D, Shakibi Nia N, Mairegger T, Götsch T, Schachinger T, Steiger-Thirsfeld A, Penner S, Wielend D, Egger D, Scheurer C, Reuter K, Kunze-Liebhäuser J. True Nature of the Transition-Metal Carbide/Liquid Interface Determines Its Reactivity. ACS Catal 2021; 11:4920-4928. [PMID: 33898080 PMCID: PMC8057231 DOI: 10.1021/acscatal.1c00415] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 03/17/2021] [Indexed: 01/01/2023]
Abstract
Compound materials, such as transition-metal (TM) carbides, are anticipated to be effective electrocatalysts for the carbon dioxide reduction reaction (CO2RR) to useful chemicals. This expectation is nurtured by density functional theory (DFT) predictions of a break of key adsorption energy scaling relations that limit CO2RR at parent TMs. Here, we evaluate these prospects for hexagonal Mo2C in aqueous electrolytes in a multimethod experiment and theory approach. We find that surface oxide formation completely suppresses the CO2 activation. The oxides are stable down to potentials as low as -1.9 V versus the standard hydrogen electrode, and solely the hydrogen evolution reaction (HER) is found to be active. This generally points to the absolute imperative of recognizing the true interface establishing under operando conditions in computational screening of catalyst materials. When protected from ambient air and used in nonaqueous electrolyte, Mo2C indeed shows CO2RR activity.
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Affiliation(s)
- Christoph Griesser
- Department
of Physical Chemistry, University of Innsbruck, Innrain 52c, 6020 Innsbruck, Austria
| | - Haobo Li
- Chair
of Theoretical Chemistry and Catalysis Research Center, Technische Universität München, 85748 Garching, Germany
| | - Eva-Maria Wernig
- Department
of Physical Chemistry, University of Innsbruck, Innrain 52c, 6020 Innsbruck, Austria
| | - Daniel Winkler
- Department
of Physical Chemistry, University of Innsbruck, Innrain 52c, 6020 Innsbruck, Austria
| | - Niusha Shakibi Nia
- Department
of Physical Chemistry, University of Innsbruck, Innrain 52c, 6020 Innsbruck, Austria
| | - Thomas Mairegger
- Department
of Physical Chemistry, University of Innsbruck, Innrain 52c, 6020 Innsbruck, Austria
| | - Thomas Götsch
- Department
of Physical Chemistry, University of Innsbruck, Innrain 52c, 6020 Innsbruck, Austria
- Department
of Heterogeneous Reactions, Max Planck Institute
for Chemical Energy Conversion, Stiftstraße 34-36, 45470 Mülheim an der Ruhr, Germany
- Department
of Inorganic Chemistry, Fritz-Haber-Institut
der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
| | - Thomas Schachinger
- University
Service Center for Transmission Electron Microscopy, TU Wien, 1040 Vienna, Austria
| | | | - Simon Penner
- Department
of Physical Chemistry, University of Innsbruck, Innrain 52c, 6020 Innsbruck, Austria
| | - Dominik Wielend
- Linz Institute
for Organic Solar Cells (LIOS)/Institute of Physical Chemistry, Johannes Kepler University, 4040 Linz, Austria
| | - David Egger
- Chair
of Theoretical Chemistry and Catalysis Research Center, Technische Universität München, 85748 Garching, Germany
- Fritz-Haber-Institut
der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
| | - Christoph Scheurer
- Chair
of Theoretical Chemistry and Catalysis Research Center, Technische Universität München, 85748 Garching, Germany
- Fritz-Haber-Institut
der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
| | - Karsten Reuter
- Chair
of Theoretical Chemistry and Catalysis Research Center, Technische Universität München, 85748 Garching, Germany
- Fritz-Haber-Institut
der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
| | - Julia Kunze-Liebhäuser
- Department
of Physical Chemistry, University of Innsbruck, Innrain 52c, 6020 Innsbruck, Austria
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9
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Huang X, Wang J, Gao J, Zhang Z, Gan LY, Xu H. Structural Evolution and Underlying Mechanism of Single-Atom Centers on Mo 2C(100) Support during Oxygen Reduction Reaction. ACS APPLIED MATERIALS & INTERFACES 2021; 13:17075-17084. [PMID: 33787216 DOI: 10.1021/acsami.1c01477] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The single-metal atoms coordinating with the surface atoms of the support constitute the active centers of as-prepared single-atom catalysts (SACs). However, under hash electrochemical conditions, (1) supports' surfaces may experience structural change, which turn to be distinct from those at ambient conditions; (2) during catalysis, the dynamic responses of a single atom to the attack of reaction intermediates likely change the coordination environment of a single atom. These factors could alter the performance of SACs. Herein, we investigate these issues using Mo2C(100)-supported single transition-metal (TM) atoms as model SACs toward catalyzing the oxygen reduction reaction (ORR). It is found that the Mo2C(100) surface is oxidized under ORR turnover conditions, resulting in significantly weakened bonding between single TM atoms and the Mo2C(100) surface (TM@Mo2C(100)_O* term for SAC). While the intermediate in 2 e- ORR does not change the local structures of the active centers in these SACs, the O* intermediate emerging in 4 e- ORR can damage Rh@ and Cu@Mo2C(100)_O*. Furthermore, on the basis of these findings, we propose Pt@Mo2C(100)_O* as a qualified ORR catalyst, which exhibits extraordinary 4 e- ORR activity with an overpotential of only 0.33 V, surpassing the state-of-the-art Pt(111), and thus being identified as a promising alternative to the commercial Pt/C catalyst.
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Affiliation(s)
- Xiang Huang
- Department of Physics, Southern University of Science and Technology, Shenzhen 518055, China
| | - Jiong Wang
- Institute of Advanced Synthesis (IAS), School of Chemistry and Chemical Engineering, Northwestern Polytechnical University (NPU), Xi'an 710072, China
- Yangtze River Delta Research Institute of NPU, Taicang Jiangsu, 215400, China
| | - Jiajian Gao
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore 637459, Singapore
| | - Zhe Zhang
- Department of Physics, Southern University of Science and Technology, Shenzhen 518055, China
| | - Li-Yong Gan
- Institute for Structure and Function and Department of Physics, Chongqing University, Chongqing 400030, China
| | - Hu Xu
- Department of Physics, Southern University of Science and Technology, Shenzhen 518055, China
- Guangdong Provincial Key Laboratory of Computational Science and Material Design, Southern University of Science and Technology, Shenzhen 518055, China
- Guangdong-Hong Kong-Macao Joint Laboratory for Photonic-Thermal-Electrical Energy Materials and Devices, Southern University of Science and Technology, Shenzhen 518055, China
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10
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Theoretical Insight on Highly Efficient Electrocatalytic CO2 Reduction Reaction of Monoatom Dispersion Catalyst (Metal-Nitrogen-Carbon). Electrocatalysis (N Y) 2021. [DOI: 10.1007/s12678-021-00662-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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11
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Ge R, Huo J, Sun M, Zhu M, Li Y, Chou S, Li W. Surface and Interface Engineering: Molybdenum Carbide-Based Nanomaterials for Electrochemical Energy Conversion. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e1903380. [PMID: 31532899 DOI: 10.1002/smll.201903380] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2019] [Revised: 08/31/2019] [Indexed: 06/10/2023]
Abstract
Molybdenum carbide (Mox C)-based nanomaterials have shown competitive performances for energy conversion applications based on their unique physicochemical properties. A large surface area and proper surface atomic configuration are essential to explore potentiality of Mox C in electrochemical applications. Although considerable efforts are made on the development of advanced Mox C-based catalysts for energy conversion with high efficiency and stability, some urgent issues, such as low electronic conductivity, low catalytic efficiency, and structural instability, have to be resolved in accordance with their application environments. Surface and interface engineering have shown bright prospects to construct highly efficient Mox C-based electrocatalysts for energy conversion including the hydrogen evolution reaction, oxygen evolution reaction, nitrogen reduction reaction, and carbon dioxide reduction reaction. In this Review, the recent progresses in terms of surface and interface engineering of Mox C-based electrocatalytic materials are summarized, including the increased number of active sites by decreasing the particle size or introducing porous or hierarchical structures and surface modification by introducing heteroatom(s), defects, carbon materials, and others electronic conductive species. Finally, the challenges and prospects for energy conversion on Mox C-based nanomaterials are discussed in terms of key performance parameters for the catalytic performance.
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Affiliation(s)
- Riyue Ge
- Institute of Materials, School of Materials Science and Engineering/Institute for Sustainable Energy, Shanghai University, Shanghai, 200444, China
| | - Juanjuan Huo
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Mingjie Sun
- Institute of Materials, School of Materials Science and Engineering/Institute for Sustainable Energy, Shanghai University, Shanghai, 200444, China
| | - Mingyuan Zhu
- Institute of Materials, School of Materials Science and Engineering/Institute for Sustainable Energy, Shanghai University, Shanghai, 200444, China
| | - Ying Li
- Institute of Materials, School of Materials Science and Engineering/Institute for Sustainable Energy, Shanghai University, Shanghai, 200444, China
| | - Shulei Chou
- Institute for Superconducting and Electronic Materials, Australian Institute for Innovative Materials, University of Wollongong, North Wollongong, New South Wales, 2522, Australia
| | - Wenxian Li
- Institute of Materials, School of Materials Science and Engineering/Institute for Sustainable Energy, Shanghai University, Shanghai, 200444, China
- Shanghai Key Laboratory of High Temperature Superconductors, Shanghai, 200444, China
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12
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Understanding Selectivity in CO2 Hydrogenation to Methanol for MoP Nanoparticle Catalysts Using In Situ Techniques. Catalysts 2021. [DOI: 10.3390/catal11010143] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Molybdenum phosphide (MoP) catalyzes the hydrogenation of CO, CO2, and their mixtures to methanol, and it is investigated as a high-activity catalyst that overcomes deactivation issues (e.g., formate poisoning) faced by conventional transition metal catalysts. MoP as a new catalyst for hydrogenating CO2 to methanol is particularly appealing for the use of CO2 as chemical feedstock. Herein, we use a colloidal synthesis technique that connects the presence of MoP to the formation of methanol from CO2, regardless of the support being used. By conducting a systematic support study, we see that zirconia (ZrO2) has the striking ability to shift the selectivity towards methanol by increasing the rate of methanol conversion by two orders of magnitude compared to other supports, at a CO2 conversion of 1.4% and methanol selectivity of 55.4%. In situ X-ray Absorption Spectroscopy (XAS) and in situ X-ray Diffraction (XRD) indicate that under reaction conditions the catalyst is pure MoP in a partially crystalline phase. Results from Diffuse Reflectance Infrared Fourier Transform Spectroscopy coupled with Temperature Programmed Surface Reaction (DRIFTS-TPSR) point towards a highly reactive monodentate formate intermediate stabilized by the strong interaction of MoP and ZrO2. This study definitively shows that the presence of a MoP phase leads to methanol formation from CO2, regardless of support and that the formate intermediate on MoP governs methanol formation rate.
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13
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Insights on alkylidene formation on Mo2C: A potential overlap between direct deoxygenation and olefin metathesis. J Catal 2021. [DOI: 10.1016/j.jcat.2020.11.037] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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14
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De Zanet A, Kondrat SA. A Review of Preparation Strategies for α-MoC1-x Catalysts. JOHNSON MATTHEY TECHNOLOGY REVIEW 2021. [DOI: 10.1595/205651322x16383716226126] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Transition metal carbides are attracting growing attention as robust and affordable alternative heterogeneous catalysts to platinum group metals, for a host of contemporary and established hydrogenation, dehydrogenation, and isomerisation reactions. In particular, the metastable α-MoC1-x phase has been shown to exhibit interesting catalytic properties for low temperature processes reliant on O-H and C-H bond activation. While demonstrating exciting catalytic properties, a significant challenge exists in the application of metastable carbides, namely the challenging procedure for their preparation. In this review we will briefly discuss the properties and catalytic applications of α-MoC1-x, followed by a more detailed discussion on available synthesis methods and important parameters that influence carbide properties. Techniques are contrasted with properties of phase, surface area, morphology and Mo:C being considered. Further, we briefly relate these observations to experimental and theoretical studies of α-MoC1-x in catalytic applications. Synthetic strategies discussed are, the original temperature programmed ammonolysis followed by carburisation, alternative oxycarbide or hydrogen bronze precursor phases, heat treatment of moybdate-amide compounds and other low temperature synthetic routes. The importance of carbon removal and catalyst passivation in relation to surface and bulk properties are also discussed. Novel techniques that by-pass the apparent bottle neck of ammonolysis are reported, however a clear understanding of intermediate phases is required to be able to fully apply these techniques. Pragmatically, the scaled application of these techniques requires the pre-pyrolysis wet chemistry to be simple and scalable. Further, there is a clear opportunity to correlate observed morphologies/phases and catalytic properties with findings from computational theoretical studies. Detailed characterisation throughout the synthetic process is essential and will undoubtedly provide fundamental insights that can be used for the controllable and scalable synthesis of metastable α-MoC1-x.
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Affiliation(s)
- Andrea De Zanet
- Department of Chemistry, Loughborough University, Loughborough, LE11 3TU, UK
| | - Simon A. Kondrat
- Department of Chemistry, Loughborough University, Loughborough, LE11 3TU, UK
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15
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Lalsare AD, Khan TS, Leonard B, Vukmanovich R, Tavazohi P, Li L, Hu J. Graphene-Supported Fe/Ni, β-Mo2C Nanoparticles: Experimental and DFT Integrated Approach to Catalyst Development for Synergistic Hydrogen Production through Lignin-Rich Biomass Reforming and Reduced Shale Gas Flaring. ACS Catal 2020. [DOI: 10.1021/acscatal.0c04242] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Amoolya D. Lalsare
- Department of Chemical and Biomedical Engineering, West Virginia University, 395 Evansdale Dr., Morgantown, West Virginia 26505, United States
| | - Tuhin S. Khan
- Department of Chemical and Biomedical Engineering, West Virginia University, 395 Evansdale Dr., Morgantown, West Virginia 26505, United States
| | - Brian Leonard
- Department of Chemical and Biomedical Engineering, West Virginia University, 395 Evansdale Dr., Morgantown, West Virginia 26505, United States
| | - Roman Vukmanovich
- Department of Chemical and Biomedical Engineering, West Virginia University, 395 Evansdale Dr., Morgantown, West Virginia 26505, United States
| | - Pedram Tavazohi
- Department of Physics and Astronomy, West Virginia University, 395 Evansdale Dr., Morgantown, West Virginia 26505, United States
| | - Lili Li
- Department of Chemical and Biomedical Engineering, West Virginia University, 395 Evansdale Dr., Morgantown, West Virginia 26505, United States
- College of Life Science and Agronomy, Zhoukou Normal University, Zhoukou, Henan, China
| | - Jianli Hu
- Department of Chemical and Biomedical Engineering, West Virginia University, 395 Evansdale Dr., Morgantown, West Virginia 26505, United States
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16
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Eslava JL, Gallegos-Suárez E, Guerrero-Ruiz A, Rodríguez-Ramos I. Effect of Mo promotion on the activity and selectivity of Ru/Graphite catalysts for Fischer-Tropsch synthesis. Catal Today 2020. [DOI: 10.1016/j.cattod.2019.05.051] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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17
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Kurlov A, Deeva EB, Abdala PM, Lebedev D, Tsoukalou A, Comas-Vives A, Fedorov A, Müller CR. Exploiting two-dimensional morphology of molybdenum oxycarbide to enable efficient catalytic dry reforming of methane. Nat Commun 2020; 11:4920. [PMID: 33009379 PMCID: PMC7532431 DOI: 10.1038/s41467-020-18721-0] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 08/31/2020] [Indexed: 11/16/2022] Open
Abstract
The two-dimensional morphology of molybdenum oxycarbide (2D-Mo2COx) nanosheets dispersed on silica is found vital for imparting high stability and catalytic activity in the dry reforming of methane. Here we report that owing to the maximized metal utilization, the specific activity of 2D-Mo2COx/SiO2 exceeds that of other Mo2C catalysts by ca. 3 orders of magnitude. 2D-Mo2COx is activated by CO2, yielding a surface oxygen coverage that is optimal for its catalytic performance and a Mo oxidation state of ca. +4. According to ab initio calculations, the DRM proceeds on Mo sites of the oxycarbide nanosheet with an oxygen coverage of 0.67 monolayer. Methane activation is the rate-limiting step, while the activation of CO2 and the C-O coupling to form CO are low energy steps. The deactivation of 2D-Mo2COx/SiO2 under DRM conditions can be avoided by tuning the contact time, thereby preventing unfavourable oxygen surface coverages.
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Affiliation(s)
- Alexey Kurlov
- Department of Mechanical and Process Engineering, ETH Zürich, Leonhardstrasse 21, CH 8092, Zürich, Switzerland
| | - Evgeniya B Deeva
- Department of Mechanical and Process Engineering, ETH Zürich, Leonhardstrasse 21, CH 8092, Zürich, Switzerland
| | - Paula M Abdala
- Department of Mechanical and Process Engineering, ETH Zürich, Leonhardstrasse 21, CH 8092, Zürich, Switzerland
| | - Dmitry Lebedev
- Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1-5, CH 8093, Zürich, Switzerland
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL, 60208, USA
| | - Athanasia Tsoukalou
- Department of Mechanical and Process Engineering, ETH Zürich, Leonhardstrasse 21, CH 8092, Zürich, Switzerland
| | - Aleix Comas-Vives
- Department of Chemistry, Universitat Autònoma de Barcelona, 08193, Cerdanyola del Vallès, Catalonia, Spain.
| | - Alexey Fedorov
- Department of Mechanical and Process Engineering, ETH Zürich, Leonhardstrasse 21, CH 8092, Zürich, Switzerland.
| | - Christoph R Müller
- Department of Mechanical and Process Engineering, ETH Zürich, Leonhardstrasse 21, CH 8092, Zürich, Switzerland.
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18
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Li H, Reuter K. Active-Site Computational Screening: Role of Structural and Compositional Diversity for the Electrochemical CO2 Reduction at Mo Carbide Catalysts. ACS Catal 2020. [DOI: 10.1021/acscatal.0c03249] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Haobo Li
- Chair for Theoretical Chemistry and Catalysis Research Center, Technische Universität München, Lichtenbergstr. 4, 85747 Garching, Germany
| | - Karsten Reuter
- Chair for Theoretical Chemistry and Catalysis Research Center, Technische Universität München, Lichtenbergstr. 4, 85747 Garching, Germany
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
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19
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Huang X, Wang J, Bing Tao H, Tian H, Zhang Z, Xu H. Unraveling the oxide layer on Mo2C as the active center for hydrogen evolution reaction. J Catal 2020. [DOI: 10.1016/j.jcat.2020.06.020] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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20
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You KE, Ammal SC, Lin Z, Wan W, Chen JG, Heyden A. Understanding the effect of Mo2C support on the activity of Cu for the hydrodeoxygenation of glycerol. J Catal 2020. [DOI: 10.1016/j.jcat.2020.05.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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21
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Fang Z, Wang LC, Wang Y, Sikorski E, Tan S, Li-Oakey KD, Li L, Yablonsky G, Dixon DA, Fushimi R. Pt-Assisted Carbon Remediation of Mo 2C Materials for CO Disproportionation. ACS Catal 2020. [DOI: 10.1021/acscatal.9b05225] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Zongtang Fang
- Biological and Chemical Science and Technology, Idaho National Laboratory, Idaho Falls, Idaho 83401, United States
| | - Lu-Cun Wang
- Biological and Chemical Science and Technology, Idaho National Laboratory, Idaho Falls, Idaho 83401, United States
| | - Yixiao Wang
- Biological and Chemical Science and Technology, Idaho National Laboratory, Idaho Falls, Idaho 83401, United States
| | - Ember Sikorski
- Micron School of Materials Science and Engineering, Boise State University, Boise, Idaho 83725, United States
- Center for Advanced Energy Studies, Idaho Falls, Idaho 83401, United States
| | - Shuai Tan
- Center for Advanced Energy Studies, Idaho Falls, Idaho 83401, United States
- Department of Chemical Engineering, University of Wyoming, Laramie, Wyoming 82071, United States
| | - Katie Dongmei Li-Oakey
- Center for Advanced Energy Studies, Idaho Falls, Idaho 83401, United States
- Department of Chemical Engineering, University of Wyoming, Laramie, Wyoming 82071, United States
| | - Lan Li
- Micron School of Materials Science and Engineering, Boise State University, Boise, Idaho 83725, United States
- Center for Advanced Energy Studies, Idaho Falls, Idaho 83401, United States
| | - Gregory Yablonsky
- Department of Energy, Environment and Chemical Engineering, Washington University in Saint Louis, Saint Louis, Missouri 63103, United States
| | - David A. Dixon
- Department of Chemistry, The University of Alabama, Tuscaloosa, Alabama 35487-0336, United States
| | - Rebecca Fushimi
- Biological and Chemical Science and Technology, Idaho National Laboratory, Idaho Falls, Idaho 83401, United States
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22
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Alexopoulos K, Wang Y, Vlachos DG. First-Principles Kinetic and Spectroscopic Insights into Single-Atom Catalysis. ACS Catal 2019. [DOI: 10.1021/acscatal.9b00179] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Konstantinos Alexopoulos
- Department of Chemical and Biomolecular Engineering and Catalysis Center for Energy Innovation, University of Delaware, 221 Academy Street, Newark, Delaware 19716, United States
| | - Yifan Wang
- Department of Chemical and Biomolecular Engineering and Catalysis Center for Energy Innovation, University of Delaware, 221 Academy Street, Newark, Delaware 19716, United States
| | - Dionisios G. Vlachos
- Department of Chemical and Biomolecular Engineering and Catalysis Center for Energy Innovation, University of Delaware, 221 Academy Street, Newark, Delaware 19716, United States
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23
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Oxygen content as a variable to control product selectivity in hydrodeoxygenation reactions on molybdenum carbide catalysts. Chem Eng Sci 2019. [DOI: 10.1016/j.ces.2018.12.027] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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24
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Single-phase mixed molybdenum-tungsten carbides: Synthesis, characterization and catalytic activity for toluene conversion. Catal Today 2019. [DOI: 10.1016/j.cattod.2018.06.037] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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25
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Lu Q, Zhou MX, Li WT, Wang X, Cui MS, Yang YP. Catalytic fast pyrolysis of biomass with noble metal-like catalysts to produce high-grade bio-oil: Analytical Py-GC/MS study. Catal Today 2018. [DOI: 10.1016/j.cattod.2017.08.029] [Citation(s) in RCA: 85] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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26
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Kumar A, Phadke S, Bhan A. Acetic acid hydrodeoxygenation on molybdenum carbide catalysts. Catal Sci Technol 2018. [DOI: 10.1039/c8cy00358k] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Kinetics and site requirements of acetic acid hydrodeoxygenation on molybdenum carbide – a stable and selective catalyst under atmospheric hydrogen pressure.
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Affiliation(s)
- Anurag Kumar
- Department of Chemical Engineering and Materials Science
- University of Minnesota-Twin Cities
- Minneapolis
- USA
| | - Sohan Phadke
- Department of Chemical Engineering and Materials Science
- University of Minnesota-Twin Cities
- Minneapolis
- USA
| | - Aditya Bhan
- Department of Chemical Engineering and Materials Science
- University of Minnesota-Twin Cities
- Minneapolis
- USA
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27
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Demirtas M, Ustunel H, Toffoli D. Effect of Platinum, Gold, and Potassium Additives on the Surface Chemistry of CdI 2-Antitype Mo 2C. ACS OMEGA 2017; 2:7976-7984. [PMID: 31457348 PMCID: PMC6645302 DOI: 10.1021/acsomega.7b01044] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Accepted: 11/03/2017] [Indexed: 06/10/2023]
Abstract
Transition metal carbides are versatile materials for diverse industrial applications including catalysis, where their relatively low cost is very attractive. In this work, we present a rather extensive density functional theory study on the energetics of adsorption of a selection of atomic and molecular species on two Mo terminations of the CdI2 antitype phase of Mo2C. Moreover, the coadsorption of CO in the presence of preadsorbed metal atoms and its dissociative adsorption in the absence and presence of preadsorbed Pt and K were investigated. By using CO as a probe to understand the structural/electronic effects of the preadsorption of the metal atoms on the Mo2C(001) surface, we showed that K further enhances CO adsorption/activation on the surface, in contrast to the precious metals considered. Moreover, it was observed that the presence of both Pt and K stabilizes the transition state for the C-O bond dissociation, lowering the activation barrier for the dissociation of the C-O bond by about 0.3 and 0.4 eV, respectively.
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Affiliation(s)
- Merve Demirtas
- Department
of Physics, Middle East Technical University, Dumlupinar Bulvari 1, 06800 Ankara, Turkey
| | - Hande Ustunel
- Department
of Physics, Middle East Technical University, Dumlupinar Bulvari 1, 06800 Ankara, Turkey
| | - Daniele Toffoli
- Dipartimento
di Scienze Chimiche e Farmaceutiche, Università
degli Studi di Trieste, Via L. Giorgieri 1, I-34127 Trieste, Italy
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28
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Lu M, Du H, Wei B, Zhu J, Li M, Shan Y, Shen J, Song C. Hydrodeoxygenation of Guaiacol on Ru Catalysts: Influence of TiO2–ZrO2 Composite Oxide Supports. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.7b02569] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mohong Lu
- Jiangsu
Key Laboratory of Advanced Catalytic Materials and Technology and
Advanced Catalysis and Green Manufacturing Collaborative Innovation
Center, Changzhou University, Changzhou, 213164, P. R. China
- Clean Fuels and Catalysis Program, EMS Energy Institute, Department of Energy & Mineral Engineering and Department of Chemical Engineering, Pennsylvania State University, 209 Academic Projects Building, University Park, Pennsylvania 16802, United States
| | - Hu Du
- Jiangsu
Key Laboratory of Advanced Catalytic Materials and Technology and
Advanced Catalysis and Green Manufacturing Collaborative Innovation
Center, Changzhou University, Changzhou, 213164, P. R. China
| | - Bin Wei
- Jiangsu
Key Laboratory of Advanced Catalytic Materials and Technology and
Advanced Catalysis and Green Manufacturing Collaborative Innovation
Center, Changzhou University, Changzhou, 213164, P. R. China
| | - Jie Zhu
- Jiangsu
Key Laboratory of Advanced Catalytic Materials and Technology and
Advanced Catalysis and Green Manufacturing Collaborative Innovation
Center, Changzhou University, Changzhou, 213164, P. R. China
| | - Mingshi Li
- Jiangsu
Key Laboratory of Advanced Catalytic Materials and Technology and
Advanced Catalysis and Green Manufacturing Collaborative Innovation
Center, Changzhou University, Changzhou, 213164, P. R. China
| | - Yuhua Shan
- Jiangsu
Key Laboratory of Advanced Catalytic Materials and Technology and
Advanced Catalysis and Green Manufacturing Collaborative Innovation
Center, Changzhou University, Changzhou, 213164, P. R. China
| | - Jianyi Shen
- Laboratory
of Mesoscopic Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, China
| | - Chunshan Song
- Clean Fuels and Catalysis Program, EMS Energy Institute, Department of Energy & Mineral Engineering and Department of Chemical Engineering, Pennsylvania State University, 209 Academic Projects Building, University Park, Pennsylvania 16802, United States
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29
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Affiliation(s)
- Megan M. Moyer
- Department of Chemistry Colorado School of Mines 1500 Illinois St. Golden CO 80401 USA
| | - Canan Karakaya
- Mechanical Engineering Colorado School of Mines 1500 Illinois St. Golden CO 80401 USA
| | - Robert J. Kee
- Mechanical Engineering Colorado School of Mines 1500 Illinois St. Golden CO 80401 USA
| | - Brian G. Trewyn
- Department of Chemistry Colorado School of Mines 1500 Illinois St. Golden CO 80401 USA
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30
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Mehdad A, Jentoft RE, Jentoft FC. Single-phase mixed molybdenum-niobium carbides: Synthesis, characterization and multifunctional catalytic behavior in toluene conversion. J Catal 2017. [DOI: 10.1016/j.jcat.2017.04.022] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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31
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Porosoff MD, Baldwin JW, Peng X, Mpourmpakis G, Willauer HD. Potassium-Promoted Molybdenum Carbide as a Highly Active and Selective Catalyst for CO 2 Conversion to CO. CHEMSUSCHEM 2017; 10:2408-2415. [PMID: 28426923 DOI: 10.1002/cssc.201700412] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Revised: 04/14/2017] [Indexed: 06/07/2023]
Abstract
The high concentration of CO2 bound in seawater represents a significant opportunity to extract and use this CO2 as a C1 feedstock for synthetic fuels. Using an existing process, CO2 and H2 can be concurrently extracted from seawater and then catalytically reacted to produce synthetic fuel. Hydrogenating CO2 directly into liquid hydrocarbons is exceptionally difficult, but by first identifying a catalyst for selective CO production through the reverse water-gas shift (RWGS) reaction, CO can then be hydrogenated to fuel through Fischer-Tropsch (FT) synthesis. Results of this study demonstrate that potassium-promoted molybdenum carbide supported on γ-Al2 O3 (K-Mo2 C/γ-Al2 O3 ) is a low-cost, stable, and highly selective catalyst for RWGS over a wide range of conversions. These findings are supported by X-ray diffraction, scanning electron microscopy with energy-dispersive X-ray spectroscopy, X-ray photoelectron spectroscopy, and density functional theory calculations.
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Affiliation(s)
- Marc D Porosoff
- Materials Science and Technology Division, Naval Research Laboratory, 4555 Overlook Avenue, Washington DC, 20375, USA
| | - Jeffrey W Baldwin
- Acoustics Division, Naval Research Laboratory, 4555 Overlook Avenue, Washington DC, 20375, USA
| | - Xi Peng
- Department of Chemical and Petroleum Engineering, University of Pittsburgh, 3700 O'Hara Street, Pittsburgh, PA, 15261, USA
| | - Giannis Mpourmpakis
- Department of Chemical and Petroleum Engineering, University of Pittsburgh, 3700 O'Hara Street, Pittsburgh, PA, 15261, USA
| | - Heather D Willauer
- Materials Science and Technology Division, Naval Research Laboratory, 4555 Overlook Avenue, Washington DC, 20375, USA
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32
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Liu X, Kunkel C, Ramírez de la Piscina P, Homs N, Viñes F, Illas F. Effective and Highly Selective CO Generation from CO2 Using a Polycrystalline α-Mo2C Catalyst. ACS Catal 2017. [DOI: 10.1021/acscatal.7b00735] [Citation(s) in RCA: 82] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Xianyun Liu
- Departament de Química Inorgànica i Orgànica, secció de Química Inorgànica, & Institut de Nanociència i Nanotecnologia (IN2UB), Universitat de Barcelona, Martí i Franquès 1, 08028 Barcelona, Spain
- Catalonia Institute for Energy Research (IREC), Jardins de les Dones de Negre 1, 08930 Barcelona, Spain
| | - Christian Kunkel
- Departament de Ciència de Materials i Química Fisica & Institut de Química Teòrica i Computacional (IQTCUB), Universitat de Barcelona, Martí i Franqués 1, 08028 Barcelona, Spain
| | - Pilar Ramírez de la Piscina
- Departament de Química Inorgànica i Orgànica, secció de Química Inorgànica, & Institut de Nanociència i Nanotecnologia (IN2UB), Universitat de Barcelona, Martí i Franquès 1, 08028 Barcelona, Spain
| | - Narcís Homs
- Departament de Química Inorgànica i Orgànica, secció de Química Inorgànica, & Institut de Nanociència i Nanotecnologia (IN2UB), Universitat de Barcelona, Martí i Franquès 1, 08028 Barcelona, Spain
- Catalonia Institute for Energy Research (IREC), Jardins de les Dones de Negre 1, 08930 Barcelona, Spain
| | - Francesc Viñes
- Departament de Ciència de Materials i Química Fisica & Institut de Química Teòrica i Computacional (IQTCUB), Universitat de Barcelona, Martí i Franqués 1, 08028 Barcelona, Spain
| | - Francesc Illas
- Departament de Ciència de Materials i Química Fisica & Institut de Química Teòrica i Computacional (IQTCUB), Universitat de Barcelona, Martí i Franqués 1, 08028 Barcelona, Spain
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33
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Michalsky R, Steinfeld A. Computational screening of perovskite redox materials for solar thermochemical ammonia synthesis from N 2 and H 2 O. Catal Today 2017. [DOI: 10.1016/j.cattod.2016.09.023] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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34
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Passivation agents and conditions for Mo2C and W2C: Effect on catalytic activity for toluene hydrogenation. J Catal 2017. [DOI: 10.1016/j.jcat.2017.01.002] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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35
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Reuter K, Plaisance CP, Oberhofer H, Andersen M. Perspective: On the active site model in computational catalyst screening. J Chem Phys 2017; 146:040901. [DOI: 10.1063/1.4974931] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Karsten Reuter
- Chair for Theoretical Chemistry and Catalysis Research Center, Technische Universität München, Lichtenbergstr. 4, D-85747 Garching,
Germany
| | - Craig P. Plaisance
- Chair for Theoretical Chemistry and Catalysis Research Center, Technische Universität München, Lichtenbergstr. 4, D-85747 Garching,
Germany
| | - Harald Oberhofer
- Chair for Theoretical Chemistry and Catalysis Research Center, Technische Universität München, Lichtenbergstr. 4, D-85747 Garching,
Germany
| | - Mie Andersen
- Chair for Theoretical Chemistry and Catalysis Research Center, Technische Universität München, Lichtenbergstr. 4, D-85747 Garching,
Germany
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36
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Tian X, Wang T, Jiao H. Oxidation of the hexagonal Mo2C(101) surface by H2O dissociative adsorption. Catal Sci Technol 2017. [DOI: 10.1039/c7cy00728k] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Oxidation of the hexagonal Mo2C(101) surface by H2O dissociative adsorption was investigated using periodic density functional theory.
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Affiliation(s)
- Xinxin Tian
- Key Laboratory of Materials for Energy Conversion and Storage of Shanxi Province
- Institute of Molecular Science
- Shanxi University
- Taiyuan 030006
- China
| | - Tao Wang
- Laboratoire de Chimie
- Université Claude Bernard Lyon 1
- CNRS UMR 5182
- Ens de Lyon
- Univ Lyon
| | - Haijun Jiao
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock
- 18059 Rostock
- Germany
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37
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Kim SK, Zhang YJ, Bergstrom H, Michalsky R, Peterson A. Understanding the Low-Overpotential Production of CH4 from CO2 on Mo2C Catalysts. ACS Catal 2016. [DOI: 10.1021/acscatal.5b02424] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Seok Ki Kim
- School of Engineering and ‡Department of
Chemistry, Brown University, Providence, Rhode Island 02912, United States
| | - Yin-Jia Zhang
- School of Engineering and ‡Department of
Chemistry, Brown University, Providence, Rhode Island 02912, United States
| | - Helen Bergstrom
- School of Engineering and ‡Department of
Chemistry, Brown University, Providence, Rhode Island 02912, United States
| | - Ronald Michalsky
- School of Engineering and ‡Department of
Chemistry, Brown University, Providence, Rhode Island 02912, United States
| | - Andrew Peterson
- School of Engineering and ‡Department of
Chemistry, Brown University, Providence, Rhode Island 02912, United States
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38
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Chen Y, Choi S, Thompson LT. Ethyl formate hydrogenolysis over Mo2C-based catalysts: Towards low temperature CO and CO2 hydrogenation to methanol. Catal Today 2016. [DOI: 10.1016/j.cattod.2015.08.021] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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39
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Sullivan MM, Chen CJ, Bhan A. Catalytic deoxygenation on transition metal carbide catalysts. Catal Sci Technol 2016. [DOI: 10.1039/c5cy01665g] [Citation(s) in RCA: 95] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We highlight the evolution and tunability of catalytic function of transition metal carbides under oxidative and reductive environments for selective deoxygenation reactions.
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Affiliation(s)
- Mark M. Sullivan
- Department of Chemical Engineering and Materials Science
- University of Minnesota - Twin Cities
- Minneapolis
- USA
| | - Cha-Jung Chen
- Department of Chemical Engineering and Materials Science
- University of Minnesota - Twin Cities
- Minneapolis
- USA
| | - Aditya Bhan
- Department of Chemical Engineering and Materials Science
- University of Minnesota - Twin Cities
- Minneapolis
- USA
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40
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Posada-Pérez S, Ramírez PJ, Gutiérrez RA, Stacchiola DJ, Viñes F, Liu P, Illas F, Rodriguez JA. The conversion of CO2 to methanol on orthorhombic β-Mo2C and Cu/β-Mo2C catalysts: mechanism for admetal induced change in the selectivity and activity. Catal Sci Technol 2016. [DOI: 10.1039/c5cy02143j] [Citation(s) in RCA: 80] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Cu clusters supported on β-Mo2C improve the selectivity towards methanol decreasing the amount of methane.
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Affiliation(s)
- Sergio Posada-Pérez
- Departament de Química Física & Institut de Química Teòrica i Computacional (IQTCUB)
- Universitat de Barcelona
- 08028 Barcelona
- Spain
| | - Pedro J. Ramírez
- Facultad de Ciencias
- Universidad Central de Venezuela
- Caracas 1020-A
- Venezuela
| | - Ramón A. Gutiérrez
- Facultad de Ciencias
- Universidad Central de Venezuela
- Caracas 1020-A
- Venezuela
| | | | - Francesc Viñes
- Departament de Química Física & Institut de Química Teòrica i Computacional (IQTCUB)
- Universitat de Barcelona
- 08028 Barcelona
- Spain
| | - Ping Liu
- Chemistry Department
- Brookhaven National Laboratory
- Upton
- USA
| | - Francesc Illas
- Departament de Química Física & Institut de Química Teòrica i Computacional (IQTCUB)
- Universitat de Barcelona
- 08028 Barcelona
- Spain
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41
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Brush A, Mullen GM, Dupré R, Kota S, Mullins CB. Evidence of methane adsorption over Mo2C involving single C–H bond dissociation instead of facile carbon exchange. REACT CHEM ENG 2016. [DOI: 10.1039/c6re00141f] [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
Methane adsorption on Mo2C involves a single C–H bond dissociation instead of facile carbon exchange as has been previously reported.
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Affiliation(s)
- Adrianna Brush
- McKetta Department of Chemical Engineering
- University of Texas at Austin
- C0400 Austin
- USA
| | - Gregory M. Mullen
- McKetta Department of Chemical Engineering
- University of Texas at Austin
- C0400 Austin
- USA
| | - Robin Dupré
- Department of Chemistry
- University of Texas at Austin
- C0400 Austin
- USA
| | - Shruti Kota
- McKetta Department of Chemical Engineering
- University of Texas at Austin
- C0400 Austin
- USA
| | - C. Buddie Mullins
- McKetta Department of Chemical Engineering
- University of Texas at Austin
- C0400 Austin
- USA
- Department of Chemistry
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42
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Posada-Pérez S, Viñes F, Rodríguez JA, Illas F. Structure and electronic properties of Cu nanoclusters supported on Mo2C(001) and MoC(001) surfaces. J Chem Phys 2015; 143:114704. [DOI: 10.1063/1.4930538] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Affiliation(s)
- Sergio Posada-Pérez
- Departament de Química Física & Institut de Química Teòrica i Computacional (IQTCUB), Universitat de Barcelona, c/ Martí i Franquès 1, 08028 Barcelona, Spain
| | - Francesc Viñes
- Departament de Química Física & Institut de Química Teòrica i Computacional (IQTCUB), Universitat de Barcelona, c/ Martí i Franquès 1, 08028 Barcelona, Spain
| | - José A. Rodríguez
- Chemistry Department, Brookhaven National Laboratory, Bldg. 555, Upton, New York 11973, USA
| | - Francesc Illas
- Departament de Química Física & Institut de Química Teòrica i Computacional (IQTCUB), Universitat de Barcelona, c/ Martí i Franquès 1, 08028 Barcelona, Spain
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43
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Schaidle JA, Thompson LT. Fischer–Tropsch synthesis over early transition metal carbides and nitrides: CO activation and chain growth. J Catal 2015. [DOI: 10.1016/j.jcat.2015.05.020] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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44
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Li L, Sholl DS. Computational Identification of Descriptors for Selectivity in Syngas Reactions on a Mo2C Catalyst. ACS Catal 2015. [DOI: 10.1021/acscatal.5b00419] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Liwei Li
- School
of Chemical and Biomolecular
Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0100, United States
| | - David S. Sholl
- School
of Chemical and Biomolecular
Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0100, United States
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Mortensen PM, de Carvalho HW, Grunwaldt JD, Jensen PA, Jensen AD. Activity and stability of Mo2C/ZrO2 as catalyst for hydrodeoxygenation of mixtures of phenol and 1-octanol. J Catal 2015. [DOI: 10.1016/j.jcat.2015.02.002] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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46
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Some Attempts in the Rational Design of Heterogeneous Catalysts Using Density Functional Theory Calculations. Top Catal 2015. [DOI: 10.1007/s11244-015-0406-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Michalsky R, Botu V, Hargus CM, Peterson AA, Steinfeld A. Design Principles for Metal Oxide Redox Materials for Solar-Driven Isothermal Fuel Production. ADVANCED ENERGY MATERIALS 2015; 5:1401082. [PMID: 26855639 PMCID: PMC4730922 DOI: 10.1002/aenm.201401082] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2014] [Indexed: 05/03/2023]
Abstract
The performance of metal oxides as redox materials is limited by their oxygen conductivity and thermochemical stability. Predicting these properties from the electronic structure can support the screening of advanced metal oxides and accelerate their development for clean energy applications. Specifically, reducible metal oxide catalysts and potential redox materials for the solar-thermochemical splitting of CO2 and H2O via an isothermal redox cycle are examined. A volcano-type correlation is developed from available experimental data and density functional theory. It is found that the energy of the oxygen-vacancy formation at the most stable surfaces of TiO2, Ti2O3, Cu2O, ZnO, ZrO2, MoO3, Ag2O, CeO2, yttria-stabilized zirconia, and three perovskites scales with the Gibbs free energy of formation of the bulk oxides. Analogously, the experimental oxygen self-diffusion constants correlate with the transition-state energy of oxygen conduction. A simple descriptor is derived for rapid screening of oxygen-diffusion trends across a large set of metal oxide compositions. These general trends are rationalized with the electronic charge localized at the lattice oxygen and can be utilized to predict the surface activity, the free energy of complex bulk metal oxides, and their oxygen conductivity.
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Affiliation(s)
- Ronald Michalsky
- Department of Mechanical and Process Engineering, ETH Zürich8092, Zürich, Switzerland
| | - Venkatesh Botu
- Department of Chemical, Materials, and Biomolecular Engineering, University of ConnecticutStorrs, CT, 06269, USA
| | - Cory M Hargus
- School of Engineering, Brown UniversityProvidence, RI, 02912, USA
| | | | - Aldo Steinfeld
- Department of Mechanical and Process Engineering, ETH Zürich8092, Zürich, Switzerland
- Solar Technology Laboratory, Paul Scherrer Institute5232, Villigen, Switzerland
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48
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Wang T, Tian X, Yang Y, Li YW, Wang J, Beller M, Jiao H. Coverage dependent adsorption and co-adsorption of CO and H2 on the CdI2-antitype metallic Mo2C(001) surface. Phys Chem Chem Phys 2015; 17:1907-17. [DOI: 10.1039/c4cp04331f] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The adsorption and co-adsorption of CO and H2 at different coverage on the CdI2-antitype metallic Mo2C(001) surface termination have been systematically computed at the level of periodic density functional theory.
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Affiliation(s)
- Tao Wang
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock
- 18059 Rostock
- Germany
| | - Xinxin Tian
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan
- PR China
| | - Yong Yang
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan
- PR China
| | - Yong-Wang Li
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan
- PR China
| | - Jianguo Wang
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan
- PR China
| | - Matthias Beller
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock
- 18059 Rostock
- Germany
| | - Haijun Jiao
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock
- 18059 Rostock
- Germany
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
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49
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Yates JLR, Spikes GH, Jones G. Platinum–carbide interactions: core–shells for catalytic use. Phys Chem Chem Phys 2015; 17:4250-8. [DOI: 10.1039/c4cp04974h] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A selection of carbides were modelled using DFT to assess their suitability as core–shell components for the oxygen reduction reaction.
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Affiliation(s)
- J. L. R. Yates
- Department of Chemistry
- University College London
- London
- UK
| | | | - G. Jones
- Department of Chemistry
- University College London
- London
- UK
- Johnson Matthey Technology Centre-Pretoria
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