1
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Zhang X, Blackman C, Palgrave RG, Ashraf S, Dey A, Blunt MO, Zhang X, Liu T, Sun S, Zhu L, Guan J, Lu Y, Keal TW, Buckeridge J, Catlow CRA, Sokol AA. Environment-Driven Variability in Absolute Band Edge Positions and Work Functions of Reduced Ceria. J Am Chem Soc 2024; 146:16814-16829. [PMID: 38837941 PMCID: PMC11191696 DOI: 10.1021/jacs.4c05053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Revised: 05/22/2024] [Accepted: 05/22/2024] [Indexed: 06/07/2024]
Abstract
The absolute band edge positions and work function (Φ) are the key electronic properties of metal oxides that determine their performance in electronic devices and photocatalysis. However, experimental measurements of these properties often show notable variations, and the mechanisms underlying these discrepancies remain inadequately understood. In this work, we focus on ceria (CeO2), a material renowned for its outstanding oxygen storage capacity, and combine theoretical and experimental techniques to demonstrate environmental modifications of its ionization potential (IP) and Φ. Under O-deficient conditions, reduced ceria exhibits a decreased IP and Φ with significant sensitivity to defect distributions. In contrast, the IP and Φ are elevated in O-rich conditions due to the formation of surface peroxide species. Surface adsorbates and impurities can further augment these variabilities under realistic conditions. We rationalize the shifts in energy levels by separating the individual contributions from bulk and surface factors, using hybrid quantum mechanical/molecular mechanical (QM/MM) embedded-cluster and periodic density functional theory (DFT) calculations supported by interatomic-potential-based electrostatic analyses. Our results highlight the critical role of on-site electrostatic potentials in determining the absolute energy levels in metal oxides, implying a dynamic evolution of band edges under catalytic conditions.
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Affiliation(s)
- Xingfan Zhang
- Kathleen
Lonsdale Materials Chemistry, Department of Chemistry, University College London, London WC1H 0AJ, U.K.
| | - Christopher Blackman
- Department
of Chemistry, University College London, Christopher Ingold Building, 20
Gordon Street, London WC1H
0AJ, U.K.
| | - Robert G. Palgrave
- Department
of Chemistry, University College London, Christopher Ingold Building, 20
Gordon Street, London WC1H
0AJ, U.K.
| | - Sobia Ashraf
- Department
of Chemistry, University College London, Christopher Ingold Building, 20
Gordon Street, London WC1H
0AJ, U.K.
| | - Avishek Dey
- Department
of Chemistry, University College London, Christopher Ingold Building, 20
Gordon Street, London WC1H
0AJ, U.K.
| | - Matthew O. Blunt
- Department
of Chemistry, University College London, Christopher Ingold Building, 20
Gordon Street, London WC1H
0AJ, U.K.
| | - Xu Zhang
- Kathleen
Lonsdale Materials Chemistry, Department of Chemistry, University College London, London WC1H 0AJ, U.K.
- School of
Chemical Engineering and Technology, Tianjin
University, Tianjin 300350, P. R. China
| | - Taifeng Liu
- Kathleen
Lonsdale Materials Chemistry, Department of Chemistry, University College London, London WC1H 0AJ, U.K.
- National
& Local Joint Engineering Research Center for Applied Technology
of Hybrid Nanomaterials, Henan University, Kaifeng 475004, China
| | - Shijia Sun
- Kathleen
Lonsdale Materials Chemistry, Department of Chemistry, University College London, London WC1H 0AJ, U.K.
| | - Lei Zhu
- Kathleen
Lonsdale Materials Chemistry, Department of Chemistry, University College London, London WC1H 0AJ, U.K.
| | - Jingcheng Guan
- Kathleen
Lonsdale Materials Chemistry, Department of Chemistry, University College London, London WC1H 0AJ, U.K.
| | - You Lu
- Scientific
Computing Department, STFC Daresbury Laboratory, Warrington WA4 4AD, Cheshire, U.K.
| | - Thomas W. Keal
- Scientific
Computing Department, STFC Daresbury Laboratory, Warrington WA4 4AD, Cheshire, U.K.
| | - John Buckeridge
- School
of Engineering, London South Bank University, London SE1 OAA, U.K.
| | - C. Richard A. Catlow
- Kathleen
Lonsdale Materials Chemistry, Department of Chemistry, University College London, London WC1H 0AJ, U.K.
- School
of Chemistry, Cardiff University, Park Place, Cardiff CF10 1AT, U.K.
| | - Alexey A. Sokol
- Kathleen
Lonsdale Materials Chemistry, Department of Chemistry, University College London, London WC1H 0AJ, U.K.
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2
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Yang C, Ma S, Liu Y, Wang L, Yuan D, Shao WP, Zhang L, Yang F, Lin T, Ding H, He H, Liu ZP, Cao Y, Zhu Y, Bao X. Homolytic H 2 dissociation for enhanced hydrogenation catalysis on oxides. Nat Commun 2024; 15:540. [PMID: 38225230 PMCID: PMC10789776 DOI: 10.1038/s41467-024-44711-7] [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: 07/20/2023] [Accepted: 01/02/2024] [Indexed: 01/17/2024] Open
Abstract
The limited surface coverage and activity of active hydrides on oxide surfaces pose challenges for efficient hydrogenation reactions. Herein, we quantitatively distinguish the long-puzzling homolytic dissociation of hydrogen from the heterolytic pathway on Ga2O3, that is useful for enhancing hydrogenation ability of oxides. By combining transient kinetic analysis with infrared and mass spectroscopies, we identify the catalytic role of coordinatively unsaturated Ga3+ in homolytic H2 dissociation, which is formed in-situ during the initial heterolytic dissociation. This site facilitates easy hydrogen dissociation at low temperatures, resulting in a high hydride coverage on Ga2O3 (H/surface Ga3+ ratio of 1.6 and H/OH ratio of 5.6). The effectiveness of homolytic dissociation is governed by the Ga-Ga distance, which is strongly influenced by the initial coordination of Ga3+. Consequently, by tuning the coordination of active Ga3+ species as well as the coverage and activity of hydrides, we achieve enhanced hydrogenation of CO2 to CO, methanol or light olefins by 4-6 times.
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Affiliation(s)
- Chengsheng Yang
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai, 200438, China
| | - Sicong Ma
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, 200032, China.
| | - Yongmei Liu
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai, 200438, China
| | - Lihua Wang
- Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201204, China
| | - Desheng Yuan
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai, 200438, China
| | - Wei-Peng Shao
- School of Physical Science and Technology, Shanghai Tech University, Shanghai, 201210, China
| | - Lunjia Zhang
- School of Physical Science and Technology, Shanghai Tech University, Shanghai, 201210, China
| | - Fan Yang
- School of Physical Science and Technology, Shanghai Tech University, Shanghai, 201210, China
| | - Tiejun Lin
- Key Laboratory of Low-Carbon Conversion Science and Engineering, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201210, China
| | - Hongxin Ding
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai, 200438, China
| | - Heyong He
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai, 200438, China
| | - Zhi-Pan Liu
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai, 200438, China
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, 200032, China
| | - Yong Cao
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai, 200438, China
| | - Yifeng Zhu
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai, 200438, China.
| | - Xinhe Bao
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai, 200438, China.
- State Key Laboratory of Catalysis, National Laboratory for Clean Energy, Collaborative Innovation Center of Chemistry for Energy Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China.
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3
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Samudrala K, Conley MP. A Supported Ziegler-Type Organohafnium Site Metabolizes Polypropylene. J Am Chem Soc 2023; 145. [PMID: 37921588 PMCID: PMC10655186 DOI: 10.1021/jacs.3c05940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 10/26/2023] [Accepted: 10/30/2023] [Indexed: 11/04/2023]
Abstract
Cp2Hf(CH3)2 reacts with silica containing strong aluminum Lewis sites to form Cp2Hf-13CH3+ paired with aluminate anions. Solid-state NMR studies show that this reaction also forms neutral organohafnium and hafnium sites lacking methyl groups. Cp2Hf-13CH3+ reacts with isotatic polypropylene (iPP, Mn = 13.3 kDa; Đ = 2.4; mmmm = 94%; ∼110 C3H6/Hf) and H2 to form oils with moderate molecular weights (Mn = 290-1200 Da) in good yields. The aliphatic oils show characteristic 13C{1H} NMR properties consistent with complete loss of diastereoselectivity and formation of regioirregular errors under 1 atm H2. These results show that a Ziegler-Natta-type active site is compatible in a common reaction used to digest waste plastic into smaller aliphatic fragments.
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Affiliation(s)
| | - Matthew P. Conley
- Department of Chemistry, University of California, Riverside, California 92521, United States
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4
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Chen K, Wang F, Wang Y, Zhang F, Huang X, Kang J, Zhang Q, Wang Y. Relay Catalysis for Highly Selective Conversion of Methanol to Ethylene in Syngas. JACS AU 2023; 3:2894-2904. [PMID: 37885567 PMCID: PMC10598826 DOI: 10.1021/jacsau.3c00463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 09/26/2023] [Accepted: 09/28/2023] [Indexed: 10/28/2023]
Abstract
The precise C-C coupling is a challenging goal in C1 chemistry. The conversion of methanol, a cheap and easily available C1 feedstock, into value-added and largely demanded olefins has been playing a game-changing role in the production of olefins. The current methanol-to-olefin (MTO) process, however, suffers from limited selectivity to a specific olefin. Here, we present a relay-catalysis route for the high-selective conversion of methanol to ethylene in syngas (H2/CO) typically used for methanol synthesis. A bifunctional catalyst composed of selectively dealuminated H-MOR zeolite and ZnO-TiO2, which implemented methanol carbonylation with CO to acetic acid and selective acetic acid hydrogenation to ethylene in tandem, offered ethylene selectivity of 85% at complete methanol conversion at 583 K. The selective removal of Brønsted acid sites in the 12-membered ring channel of H-MOR favors the selectivity of acetic acid in CH3OH carbonylation. The high capabilities of ZnO-TiO2 in the adsorption of acetic acid and the activation of H2 play key roles in selective hydrogenation of acetic acid to ethylene. Our work provides a promising relay-catalysis strategy for precise C-C coupling of C1 to C2 molecules.
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Affiliation(s)
- Kuo Chen
- State Key Laboratory of Physical
Chemistry of Solid Surfaces, Innovation Laboratory for Sciences and
Technologies of Energy Materials of Fujian Province (IKKEM), National
Engineering Laboratory for Green Chemical Productions of Alcohols,
Ethers and Esters, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
| | - Fenfang Wang
- State Key Laboratory of Physical
Chemistry of Solid Surfaces, Innovation Laboratory for Sciences and
Technologies of Energy Materials of Fujian Province (IKKEM), National
Engineering Laboratory for Green Chemical Productions of Alcohols,
Ethers and Esters, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
| | - Yu Wang
- State Key Laboratory of Physical
Chemistry of Solid Surfaces, Innovation Laboratory for Sciences and
Technologies of Energy Materials of Fujian Province (IKKEM), National
Engineering Laboratory for Green Chemical Productions of Alcohols,
Ethers and Esters, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
| | - Fuyong Zhang
- State Key Laboratory of Physical
Chemistry of Solid Surfaces, Innovation Laboratory for Sciences and
Technologies of Energy Materials of Fujian Province (IKKEM), National
Engineering Laboratory for Green Chemical Productions of Alcohols,
Ethers and Esters, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
| | - Xinyu Huang
- State Key Laboratory of Physical
Chemistry of Solid Surfaces, Innovation Laboratory for Sciences and
Technologies of Energy Materials of Fujian Province (IKKEM), National
Engineering Laboratory for Green Chemical Productions of Alcohols,
Ethers and Esters, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
| | - Jincan Kang
- State Key Laboratory of Physical
Chemistry of Solid Surfaces, Innovation Laboratory for Sciences and
Technologies of Energy Materials of Fujian Province (IKKEM), National
Engineering Laboratory for Green Chemical Productions of Alcohols,
Ethers and Esters, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
| | - Qinghong Zhang
- State Key Laboratory of Physical
Chemistry of Solid Surfaces, Innovation Laboratory for Sciences and
Technologies of Energy Materials of Fujian Province (IKKEM), National
Engineering Laboratory for Green Chemical Productions of Alcohols,
Ethers and Esters, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
| | - Ye Wang
- State Key Laboratory of Physical
Chemistry of Solid Surfaces, Innovation Laboratory for Sciences and
Technologies of Energy Materials of Fujian Province (IKKEM), National
Engineering Laboratory for Green Chemical Productions of Alcohols,
Ethers and Esters, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
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5
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Ling Y, Luo J, Ran Y, Liu Z, Li WX, Yang F. Atomic-Scale Visualization of Heterolytic H 2 Dissociation and CO x Hydrogenation on ZnO under Ambient Conditions. J Am Chem Soc 2023; 145:22697-22707. [PMID: 37801691 DOI: 10.1021/jacs.3c08085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/08/2023]
Abstract
Studying catalytic hydrogenation reactions on oxide surfaces at the atomic scale has been challenging because of the typical occurrence of these processes at ambient or elevated pressures, rendering them less accessible to atomic-scale techniques. Here, we report an atomic-scale study on H2 dissociation and the hydrogenation of CO and CO2 on ZnO using ambient pressure scanning tunneling microscopy, ambient pressure X-ray photoelectron spectroscopy, and density functional theory (DFT) calculations. We directly visualized the heterolytic dissociation of H2 on ZnO(101̅0) under ambient pressure and found that dissociation reaction does not require the assistance of surface defects. The presence of CO or CO2 on ZnO at 300 K does not impede the availability of surface sites for H2 dissociation; instead, CO can even enhance the stability of coadsorbed hydride species, thereby facilitating their dissociative adsorption. Our results show that hydride is the active species for hydrogenation, while hydroxyl cannot hydrogenate CO/CO2 on ZnO. Both AP studies and DFT calculations showed that the hydrogenation of CO2 on ZnO is thermodynamically and kinetically more favorable compared to that of CO hydrogenation. Our results point toward a two-step mechanism for CO hydrogenation, involving initial oxidation to CO2 at step sites on ZnO followed by reaction with hydride to form formate. These findings provide molecular insights into the hydrogenation of CO/CO2 on ZnO and deepen our understanding of syngas conversion and oxide catalysis in general.
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Affiliation(s)
- Yunjian Ling
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- School of Physical Science and Technology, Center for Transformative Science, ShanghaiTech University, Shanghai 201210, China
- University of Chinese Academy of Sciences, Beijing 100039, China
| | - Jie Luo
- Hefei National Research Center for Physical Science at the Microscale, University of Science and Technology of China, Hefei 230026, China
| | - Yihua Ran
- School of Physical Science and Technology, Center for Transformative Science, ShanghaiTech University, Shanghai 201210, China
| | - Zhi Liu
- School of Physical Science and Technology, Center for Transformative Science, ShanghaiTech University, Shanghai 201210, China
| | - Wei-Xue Li
- Key Laboratory of Precision and Intelligent Chemistry, School of Chemistry and Materials Science, iChEM, University of Science and Technology of China, Hefei 230026, China
- Hefei National Laboratory, University of Science and Technology of China, Hefei, Anhui 230088, China
| | - Fan Yang
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- School of Physical Science and Technology, Center for Transformative Science, ShanghaiTech University, Shanghai 201210, China
- Shanghai Key Laboratory of High-Resolution Electron Microscopy, ShanghaiTech University, Shanghai 201210, China
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6
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Fernando-López O, Trujillo-Hernández K, Moreno-Martínez VA, Martínez-Otero D, Bernabé-Pablo E, Huerta-Lavorie R, Jancik V. Molecular Alumo- and Gallosilicate Hydrides Functionalized with Terminal M(NR 2) 3 and Bridging M(NR 2) 2 (M = Ti, Zr, Hf; R = Me, Et) Moieties. Inorg Chem 2023; 62:14533-14545. [PMID: 37642323 DOI: 10.1021/acs.inorgchem.3c01413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Abstract
A general synthetic strategy for the systematic synthesis of group 4 MIV heterometallic complexes LMIII(H)(μ-O)Si(μ-O)(OtBu)2}nMIV(NR2)4-n (L = {[HC{C(Me)N(2,6-iPr2C6H3)}2; MIII = Al or Ga; n = 1 or 2; MIV = Ti, Zr, Hf; R = Me, Et), based on alumo- or gallosilicate hydride ligands bearing a Si-OH moiety, is presented. The challenging isolation of these metalloligands involved two strategies. On the one hand, the acid-base reaction of LAlH2 with (HO)2Si(OtBu)2 yielded LAlH(μ-O)Si(OH)(OtBu)2 (1), while on the other hand, the oxidative addition of (HO)2Si(OtBu)2 to LGa produced the gallium analog (2). These metalloligands successfully stabilized two hydrogen atoms with different acid-base properties (MIII-H and SiO-H) in the same molecule. Reactivity studies between 1 and 2 and group 4 amides MIV(NR2)4 (MIV = Ti, Zr, Hf; R = Me, Et) and tuning the reactions conditions and stoichiometry led to isolation and structural characterization of heterometallic complexes 3-11 with a 1:1 or 2:1 metalloligand/MIV ratio. Notably, some of these molecular heterometallic silicate complexes stabilize for the first time terminal (O3Si-O-)MIV(NR2)3 moieties known from single-site silica-grafted species. Furthermore, the aluminum-containing heterometallic complexes possess Al-H vibrational energies similar to those reported for modified alumina surfaces, which makes them potentially suitable models for the proposed MIV species grafted onto silica/alumina surfaces with hydride and dihydride architectures.
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Affiliation(s)
- Oscar Fernando-López
- Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM, Carr. Toluca-Atlacomulco km. 14.5, Toluca, Estado de México 50200, México
- Universidad Nacional Autónoma de México, Instituto de Química, Ciudad Universitaria, Ciudad de México 04510, México
| | - Karla Trujillo-Hernández
- Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM, Carr. Toluca-Atlacomulco km. 14.5, Toluca, Estado de México 50200, México
| | - Víctor Augusto Moreno-Martínez
- Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM, Carr. Toluca-Atlacomulco km. 14.5, Toluca, Estado de México 50200, México
- Universidad Nacional Autónoma de México, Instituto de Química, Ciudad Universitaria, Ciudad de México 04510, México
| | - Diego Martínez-Otero
- Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM, Carr. Toluca-Atlacomulco km. 14.5, Toluca, Estado de México 50200, México
- Universidad Nacional Autónoma de México, Instituto de Química, Ciudad Universitaria, Ciudad de México 04510, México
| | - Erandi Bernabé-Pablo
- Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM, Carr. Toluca-Atlacomulco km. 14.5, Toluca, Estado de México 50200, México
- Universidad Nacional Autónoma de México, Instituto de Química, Ciudad Universitaria, Ciudad de México 04510, México
| | - Raúl Huerta-Lavorie
- Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM, Carr. Toluca-Atlacomulco km. 14.5, Toluca, Estado de México 50200, México
- Universidad Nacional Autónoma de México, Instituto de Química, Ciudad Universitaria, Ciudad de México 04510, México
| | - Vojtech Jancik
- Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM, Carr. Toluca-Atlacomulco km. 14.5, Toluca, Estado de México 50200, México
- Universidad Nacional Autónoma de México, Instituto de Química, Ciudad Universitaria, Ciudad de México 04510, México
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7
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Ben Yaacov A, Falling LJ, Ben David R, Attia S, Andrés MA, Nemšák S, Eren B. Oxidation and Reduction of Polycrystalline Cerium Oxide Thin Films in Hydrogen. J Phys Chem Lett 2023; 14:7354-7360. [PMID: 37561999 PMCID: PMC10461297 DOI: 10.1021/acs.jpclett.3c01662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Accepted: 08/04/2023] [Indexed: 08/12/2023]
Abstract
This study investigates the oxidation state of ceria thin films' surface and subsurface under 100 mTorr hydrogen using ambient pressure X-ray photoelectron spectroscopy. We examine the influence of the initial oxidation state and sample temperature (25-450 °C) on the interaction with hydrogen. Our findings reveal that the oxidation state during hydrogen interaction involves a complex interplay between oxidizing hydride formation, reducing thermal reduction, and reducing formation of hydroxyls followed by water desorption. In all studied conditions, the subsurface exhibits a higher degree of oxidation compared to the surface, with a more subtle difference for the reduced sample. The reduced samples are significantly hydroxylated and covered with molecular water at 25 °C. We also investigate the impact of water vapor impurities in hydrogen. We find that although 1 × 10-6 Torr water vapor oxidizes ceria, it is probably not the primary driver behind the oxidation of reduced ceria in the presence of hydrogen.
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Affiliation(s)
- Adva Ben Yaacov
- Department
of Chemical and Biological Physics, Weizmann
Institute of Science, 234 Herzl Street, 76100 Rehovot, Israel
| | - Lorenz J. Falling
- Advanced
Light Source, Lawrence Berkeley National
Laboratory, Berkeley, California 94720, United States
- Materials
Science Division, Lawrence Berkeley National
Laboratory, Berkeley, California 94720, United States
| | - Roey Ben David
- Department
of Chemical and Biological Physics, Weizmann
Institute of Science, 234 Herzl Street, 76100 Rehovot, Israel
| | - Smadar Attia
- Nuclear
Research Centre—Negev, Beer-Sheva 84190, Israel
| | - Miguel A. Andrés
- Department
of Chemical and Biological Physics, Weizmann
Institute of Science, 234 Herzl Street, 76100 Rehovot, Israel
| | - Slavomír Nemšák
- Advanced
Light Source, Lawrence Berkeley National
Laboratory, Berkeley, California 94720, United States
- Department
of Physics and Astronomy, University of
California, Davis, California 95616, United States
| | - Baran Eren
- Department
of Chemical and Biological Physics, Weizmann
Institute of Science, 234 Herzl Street, 76100 Rehovot, Israel
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8
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Yasumura S, Kamachi T, Toyao T, Shimizu KI, Hinuma Y. Prediction of Stable Surfaces of Metal Oxides through the Unsaturated Coordination Index. ACS OMEGA 2023; 8:29779-29788. [PMID: 37599947 PMCID: PMC10433516 DOI: 10.1021/acsomega.3c04253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 07/10/2023] [Indexed: 08/22/2023]
Abstract
This study proposes the unsaturated coordination index, σ, as a potential descriptor of the stability of metal-oxide surfaces cleaved from bulk. The value of σ, the number of missing bonds per unit area, can be obtained very quickly using only crystallographic data, namely, the bulk geometry. The surface energies of various binary oxides, with and without atom relaxation, were calculated. Their correlations with σ had good coefficients of determination (R2) values, particularly in high-symmetry crystals. The proposed descriptor is very useful for an initial evaluation of stable metal-oxide surfaces without conducting any surface model calculations.
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Affiliation(s)
- Shunsaku Yasumura
- Institute
of Industrial Science, The University of
Tokyo, Komaba 4-6-1, Meguro, Tokyo 153-8505, Japan
| | - Takashi Kamachi
- Department
of Life, Environment and Applied Chemistry, Fukuoka Institute of Technology, 3-30-1 Wajiro-Higashi, Higashi-ku, Fukuoka 811-0295, Japan
| | - Takashi Toyao
- Institute
for Catalysis, Hokkaido University, N-21, W-10, Kita, Sapporo 001-0021, Hokkaido, Japan
| | - Ken-ichi Shimizu
- Institute
for Catalysis, Hokkaido University, N-21, W-10, Kita, Sapporo 001-0021, Hokkaido, Japan
| | - Yoyo Hinuma
- Department
of Energy and Environment, National Institute
of Advanced Industrial Science and Technology (AIST), 1-8-31, Midorigaoka, Ikeda 563-8577, Osaka, Japan
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9
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Yu X, Cheng Y, Li Y, Polo-Garzon F, Liu J, Mamontov E, Li M, Lennon D, Parker SF, Ramirez-Cuesta AJ, Wu Z. Neutron Scattering Studies of Heterogeneous Catalysis. Chem Rev 2023. [PMID: 37315192 DOI: 10.1021/acs.chemrev.3c00101] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Understanding the structural dynamics/evolution of catalysts and the related surface chemistry is essential for establishing structure-catalysis relationships, where spectroscopic and scattering tools play a crucial role. Among many such tools, neutron scattering, though less-known, has a unique power for investigating catalytic phenomena. Since neutrons interact with the nuclei of matter, the neutron-nucleon interaction provides unique information on light elements (mainly hydrogen), neighboring elements, and isotopes, which are complementary to X-ray and photon-based techniques. Neutron vibrational spectroscopy has been the most utilized neutron scattering approach for heterogeneous catalysis research by providing chemical information on surface/bulk species (mostly H-containing) and reaction chemistry. Neutron diffraction and quasielastic neutron scattering can also supply important information on catalyst structures and dynamics of surface species. Other neutron approaches, such as small angle neutron scattering and neutron imaging, have been much less used but still give distinctive catalytic information. This review provides a comprehensive overview of recent advances in neutron scattering investigations of heterogeneous catalysis, focusing on surface adsorbates, reaction mechanisms, and catalyst structural changes revealed by neutron spectroscopy, diffraction, quasielastic neutron scattering, and other neutron techniques. Perspectives are also provided on the challenges and future opportunities in neutron scattering studies of heterogeneous catalysis.
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Affiliation(s)
- Xinbin Yu
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37381, United States
| | - Yongqiang Cheng
- Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Yuanyuan Li
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37381, United States
| | - Felipe Polo-Garzon
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37381, United States
| | - Jue Liu
- Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Eugene Mamontov
- Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Meijun Li
- Manufacturing Science Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - David Lennon
- School of Chemistry, Joseph Black Building, University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - Stewart F Parker
- ISIS Pulsed Neutron and Muon Facility, STFC Rutherford Appleton Laboratory, Chilton, Didcot, Oxon OX11 0QX, United Kingdom
| | - Anibal J Ramirez-Cuesta
- Neutron Technologies Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Zili Wu
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37381, United States
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
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10
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Li Z, Chen L, Wu Z, Jia A, Shi S, Zhang H, Wang J, Liu Z, Shao WP, Yang F, Wu XP, Gong XQ, Huang W. Surface Oxygen Vacancy and Hydride Species on Ceria Are Detrimental to Acetylene Semihydrogenation Reaction. ACS Catal 2023. [DOI: 10.1021/acscatal.3c00248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
Affiliation(s)
- Zhaorui Li
- Key Laboratory of Precise and Intelligent Chemistry, iChEM, Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China
| | - Lu Chen
- Key Laboratory for Advanced Materials and Joint International Research Laboratory for Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Centre for Computational Chemistry and Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Zongfang Wu
- Hefei National Research Center for Physical Science at the Microscale, Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, University of Science and Technology of China, Hefei 230026, China
| | - AiPing Jia
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua 321004, China
| | - Shucheng Shi
- School of Physical Science and Technology, Shanghai Tech University, Shanghai 201210, China
| | - Hui Zhang
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China
| | - Jia Wang
- Key Laboratory for Advanced Materials and Joint International Research Laboratory for Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Centre for Computational Chemistry and Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Zhi Liu
- School of Physical Science and Technology, Shanghai Tech University, Shanghai 201210, China
| | - Wei-Peng Shao
- School of Physical Science and Technology, Shanghai Tech University, Shanghai 201210, China
| | - Fan Yang
- School of Physical Science and Technology, Shanghai Tech University, Shanghai 201210, China
| | - Xin-Ping Wu
- Key Laboratory for Advanced Materials and Joint International Research Laboratory for Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Centre for Computational Chemistry and Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Xue-Qing Gong
- Key Laboratory for Advanced Materials and Joint International Research Laboratory for Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Centre for Computational Chemistry and Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Weixin Huang
- Key Laboratory of Precise and Intelligent Chemistry, iChEM, Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China
- Dalian National Laboratory for Clean Energy, Chinese Academy of Sciences, Dalian 116023, China
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11
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Samudrala KK, Conley MP. Effects of surface acidity on the structure of organometallics supported on oxide surfaces. Chem Commun (Camb) 2023; 59:4115-4127. [PMID: 36912586 DOI: 10.1039/d3cc00047h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
Abstract
Well-defined organometallics supported on high surface area oxides are promising heterogeneous catalysts. An important design factor in these materials is how the metal interacts with the functionalities on an oxide support, commonly anionic X-type ligands derived from the reaction of an organometallic M-R with an -OH site on the oxide. The metal can either form a covalent M-O bond or form an electrostatic M+⋯-O ion-pair, which impacts how well-defined organometallics will interact with substrates in catalytic reactions. A less common reaction pathway involves the reaction of a Lewis site on the oxide with the organometallic, resulting in abstraction to form an ion-pair, which is relevant to industrial olefin polymerization catalysts. This Feature Article views the spectrum of reactivity between an organometallic and an oxide through the prism of Brønsted and/or Lewis acidity of surface sites and draws analogies to the molecular frame where Lewis and Brønsted acids are known to form reactive ion-pairs. Applications of the well-defined sites developed in this article are also discussed.
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Affiliation(s)
| | - Matthew P Conley
- Department of Chemistry, University of California, Riverside, California 92521, USA.
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12
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Gao J, Zhu L, Conley MP. Cationic Tantalum Hydrides Catalyze Hydrogenolysis and Alkane Metathesis Reactions of Paraffins and Polyethylene. J Am Chem Soc 2023; 145:4964-4968. [PMID: 36827508 DOI: 10.1021/jacs.2c13610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
Abstract
Sulfated aluminum oxide (SAO), a high surface area material containing sulfate anions that behave like weakly coordinating anions, reacts with Ta(═CHtBu)(CH2tBu)3 to form [Ta(CH2tBu)2(O-)2][SAO] (1). Subsequent treatment with H2 forms Ta-H+ sites supported on SAO that are active in hydrogenolysis and alkane metathesis reactions. In both reactions Ta-H+ is more active than related neutral Ta-H sites supported on silica. This reaction chemistry extends to melts of high-density polyethylene (HDPE), where Ta-H+ converts 30% of a low molecular weight HDPE (Mn = 2.5 kg mol-1; Đ = 3.6) to low molecular weight paraffins under hydrogenolysis conditions. Under alkane metathesis conditions Ta-H+ converts this HDPE to a high MW fraction (Mn = 6.2 kDa; Đ = 2.3) and low molecular weight alkane products (C13-C32). These results show that incorporating charge as a design element in supported d0 metal hydrides is a viable strategy to increase the reaction rate in challenging reactions involving reorganization of C-C bonds in alkanes.
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Affiliation(s)
- Jiaxin Gao
- Department of Chemistry, University of California, Riverside, California 92521, United States
| | - Lingchao Zhu
- Department of Chemistry, University of California, Riverside, California 92521, United States
| | - Matthew P Conley
- Department of Chemistry, University of California, Riverside, California 92521, United States
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13
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Struijs JJC, Muravev V, Verheijen MA, Hensen EJM, Kosinov N. Ceria-Supported Cobalt Catalyst for Low-Temperature Methanation at Low Partial Pressures of CO 2. Angew Chem Int Ed Engl 2023; 62:e202214864. [PMID: 36464648 PMCID: PMC10107782 DOI: 10.1002/anie.202214864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Revised: 11/15/2022] [Accepted: 12/02/2022] [Indexed: 12/12/2022]
Abstract
The direct catalytic conversion of atmospheric CO2 to valuable chemicals is a promising solution to avert negative consequences of rising CO2 concentration. However, heterogeneous catalysts efficient at low partial pressures of CO2 still need to be developed. Here, we explore Co/CeO2 as a catalyst for the methanation of diluted CO2 streams. This material displays an excellent performance at reaction temperatures as low as 175 °C and CO2 partial pressures as low as 0.4 mbar (the atmospheric CO2 concentration). To gain mechanistic understanding of this unusual activity, we employed in situ X-ray photoelectron spectroscopy and operando infrared spectroscopy. The higher surface concentration and reactivity of formates and carbonyls-key reaction intermediates-explain the superior activity of Co/CeO2 as compared to a conventional Co/SiO2 catalyst. This work emphasizes the catalytic role of the cobalt-ceria interface and will aid in developing more efficient CO2 hydrogenation catalysts.
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Affiliation(s)
- Job J C Struijs
- Laboratory of Inorganic Materials and Catalysis, Department of Chemical Engineering and Chemistry Eindhoven University of Technology, P.O. Box 513, 5600MB, Eindhoven, The Netherlands
| | - Valery Muravev
- Laboratory of Inorganic Materials and Catalysis, Department of Chemical Engineering and Chemistry Eindhoven University of Technology, P.O. Box 513, 5600MB, Eindhoven, The Netherlands
| | - Marcel A Verheijen
- Department of Applied Physics Eindhoven University of Technology, P.O. Box 513, 5600MB Eindhoven, The Netherlands.,Eurofins Material Science Netherlands BV, 5656AE, Eindhoven, The Netherlands
| | - Emiel J M Hensen
- Laboratory of Inorganic Materials and Catalysis, Department of Chemical Engineering and Chemistry Eindhoven University of Technology, P.O. Box 513, 5600MB, Eindhoven, The Netherlands
| | - Nikolay Kosinov
- Laboratory of Inorganic Materials and Catalysis, Department of Chemical Engineering and Chemistry Eindhoven University of Technology, P.O. Box 513, 5600MB, Eindhoven, The Netherlands
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14
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The role of lanthanum hydride species in La2O3 supported Ru cluster catalyst for ammonia synthesis. J Catal 2022. [DOI: 10.1016/j.jcat.2022.12.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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15
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Prieto MJ, Mullan T, Wan W, Tănase LC, de Souza Caldas L, Shaikhutdinov S, Sauer J, Usvyat D, Schmidt T, Cuenya BR. Plasma Functionalization of Silica Bilayer Polymorphs. ACS APPLIED MATERIALS & INTERFACES 2022; 14:48609-48618. [PMID: 36255411 PMCID: PMC9634693 DOI: 10.1021/acsami.2c11491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 09/07/2022] [Indexed: 06/16/2023]
Abstract
Ultrathin silica films are considered suitable two-dimensional model systems for the study of fundamental chemical and physical properties of all-silica zeolites and their derivatives, as well as novel supports for the stabilization of single atoms. In the present work, we report the creation of a new model catalytic support based on the surface functionalization of different silica bilayer (BL) polymorphs with well-defined atomic structures. The functionalization is carried out by means of in situ H-plasma treatments at room temperature. Low energy electron diffraction and microscopy data indicate that the atomic structure of the films remains unchanged upon treatment. Comparing the experimental results (photoemission and infrared absorption spectra) with density functional theory simulations shows that H2 is added via the heterolytic dissociation of an interlayer Si-O-Si siloxane bond and the subsequent formation of a hydroxyl and a hydride group in the top and bottom layers of the silica film, respectively. Functionalization of the silica films constitutes the first step into the development of a new type of model system of single-atom catalysts where metal atoms with different affinities for the functional groups can be anchored in the SiO2 matrix in well-established positions. In this way, synergistic and confinement effects between the active centers can be studied in a controlled manner.
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Affiliation(s)
- Mauricio J. Prieto
- Department
of Interface Science, Fritz-Haber-Institut
der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195Berlin, Germany
| | - Thomas Mullan
- Institut
für Chemie, Humboldt-Universität zu Berlin, Unter den Linden 6, 10099Berlin, Germany
| | - Weiming Wan
- Department
of Interface Science, Fritz-Haber-Institut
der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195Berlin, Germany
| | - Liviu C. Tănase
- Department
of Interface Science, Fritz-Haber-Institut
der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195Berlin, Germany
| | - Lucas de Souza Caldas
- Department
of Interface Science, Fritz-Haber-Institut
der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195Berlin, Germany
| | - Shamil Shaikhutdinov
- Department
of Interface Science, Fritz-Haber-Institut
der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195Berlin, Germany
| | - Joachim Sauer
- Institut
für Chemie, Humboldt-Universität zu Berlin, Unter den Linden 6, 10099Berlin, Germany
| | - Denis Usvyat
- Institut
für Chemie, Humboldt-Universität zu Berlin, Unter den Linden 6, 10099Berlin, Germany
| | - Thomas Schmidt
- Department
of Interface Science, Fritz-Haber-Institut
der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195Berlin, Germany
| | - Beatriz Roldan Cuenya
- Department
of Interface Science, Fritz-Haber-Institut
der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195Berlin, Germany
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16
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Chen H, Gao P, Liu Z, Liang L, Han Q, Wang Z, Chen K, Zhao Z, Guo M, Liu X, Han X, Bao X, Hou G. Direct Detection of Reactive Gallium-Hydride Species on the Ga 2O 3 Surface via Solid-State NMR Spectroscopy. J Am Chem Soc 2022; 144:17365-17375. [DOI: 10.1021/jacs.2c01005] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Hongyu Chen
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, 2011-Collaborative Innovation Center of Chemistry for Energy Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Pan Gao
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, 2011-Collaborative Innovation Center of Chemistry for Energy Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Zhengmao Liu
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, 2011-Collaborative Innovation Center of Chemistry for Energy Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lixin Liang
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, 2011-Collaborative Innovation Center of Chemistry for Energy Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Qiao Han
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, 2011-Collaborative Innovation Center of Chemistry for Energy Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhili Wang
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, 2011-Collaborative Innovation Center of Chemistry for Energy Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Kuizhi Chen
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, 2011-Collaborative Innovation Center of Chemistry for Energy Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Zhenchao Zhao
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, 2011-Collaborative Innovation Center of Chemistry for Energy Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Meiling Guo
- Energy Innovation Laboratory, BP (China) Dalian Office, Dalian 116023, China
| | - Xuebin Liu
- Energy Innovation Laboratory, BP (China) Dalian Office, Dalian 116023, China
| | - Xiuwen Han
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, 2011-Collaborative Innovation Center of Chemistry for Energy Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Xinhe Bao
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, 2011-Collaborative Innovation Center of Chemistry for Energy Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Guangjin Hou
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, 2011-Collaborative Innovation Center of Chemistry for Energy Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
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17
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Kita Y, Kuwabara M, Kamata K, Hara M. Heterogeneous Low-Valent Mn Catalysts for α-Alkylation of Ketones with Alcohols through Borrowing Hydrogen Methodology. ACS Catal 2022. [DOI: 10.1021/acscatal.2c03085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yusuke Kita
- Laboratory for Materials and Structures, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226-8503, Japan
| | - Midori Kuwabara
- Laboratory for Materials and Structures, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226-8503, Japan
| | - Keigo Kamata
- Laboratory for Materials and Structures, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226-8503, Japan
| | - Michikazu Hara
- Laboratory for Materials and Structures, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226-8503, Japan
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18
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Sheng H, Fang Y, Huang Y, Huang Z, Shen W, Xu H. Highly Active Cu-CeZrO x/ZSM-5@Si Catalyst for Direct Conversion of Syngas to Aromatics. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c01422] [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)
- Haibing Sheng
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials and Laboratory of Advanced Materials, Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai 200433, P.R. China
| | - Yue Fang
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials and Laboratory of Advanced Materials, Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai 200433, P.R. China
| | - Yijia Huang
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials and Laboratory of Advanced Materials, Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai 200433, P.R. China
| | - Zhen Huang
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials and Laboratory of Advanced Materials, Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai 200433, P.R. China
| | - Wei Shen
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials and Laboratory of Advanced Materials, Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai 200433, P.R. China
| | - Hualong Xu
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials and Laboratory of Advanced Materials, Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai 200433, P.R. China
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19
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Hydride Generation on the Cu-Doped CeO2(111) Surface and Its Role in CO2 Hydrogenation Reactions. Catalysts 2022. [DOI: 10.3390/catal12090963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Ceria-based catalysts exhibit great activity in catalyzing selective hydrogenation of CO2 to methanol. However, the underlying mechanism of this reaction, especially the generation of active H species, remains unclear. In this work, we performed extensive density functional theory calculations corrected by on-site Coulomb interaction (DFT + U) to investigate the H2 dissociation and the reaction between the active H species and CO2 on the pristine and Cu-doped CeO2(111) (denoted as Cu/CeO2(111)) surfaces. Our calculations evidenced that the heterolytic H2 dissociation for hydride generation can more readily occur on the Cu/CeO2(111) surface than on the pristine CeO2(111) surface. We also found that the Cu dopant can facilitate the formation of surface oxygen vacancies, further promoting the generation of hydride species. Moreover, the adsorption of CO2 and the hydrogenation of CO2 to HCOO* can be greatly promoted on the Cu/CeO2(111) surface with hydride species, which can lead to the high activity and selectivity toward CO2 hydrogenation to methanol.
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20
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Huang M, Maeno Z, Toyao T, Shimizu KI. Ga speciation and ethane dehydrogenation catalysis of Ga-CHA and MOR: Comparative investigation with Ga-MFI. Catal Today 2022. [DOI: 10.1016/j.cattod.2022.06.039] [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]
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21
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Song S, Yang K, Zhang P, Wu Z, Li J, Su H, Dai S, Xu C, Li Z, Liu J, Song W. Silicalite-1 Stabilizes Zn-Hydride Species for Efficient Propane Dehydrogenation. ACS Catal 2022. [DOI: 10.1021/acscatal.2c00928] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Shaojia Song
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum (Beijing), Beijing 102249, China
| | - Kun Yang
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum (Beijing), Beijing 102249, China
| | - Peng Zhang
- Petrochemical Research Institute, PetroChina Company Limited, Beijing 102206, China
| | - Zhijie Wu
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum (Beijing), Beijing 102249, China
| | - Jun Li
- Beijing National Laboratory for Condensed Matter Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - Hui Su
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum (Beijing), Beijing 102249, China
| | - Sheng Dai
- Department of Chemistry, University of Tennessee−Knoxville, Knoxville, Tennessee 37996-1600, United States
| | - Chunming Xu
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum (Beijing), Beijing 102249, China
| | - Zhenxing Li
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum (Beijing), Beijing 102249, China
| | - Jian Liu
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum (Beijing), Beijing 102249, China
| | - Weiyu Song
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum (Beijing), Beijing 102249, China
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22
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Hu ZP, Han J, Wei Y, Liu Z. Dynamic Evolution of Zeolite Framework and Metal-Zeolite Interface. ACS Catal 2022. [DOI: 10.1021/acscatal.2c01233] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Zhong-Pan Hu
- National Engineering Laboratory for Methanol to Olefins, Dalian National Laboratory for Clean Energy, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
| | - Jingfeng Han
- National Engineering Laboratory for Methanol to Olefins, Dalian National Laboratory for Clean Energy, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
| | - Yingxu Wei
- National Engineering Laboratory for Methanol to Olefins, Dalian National Laboratory for Clean Energy, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
| | - Zhongmin Liu
- National Engineering Laboratory for Methanol to Olefins, Dalian National Laboratory for Clean Energy, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
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23
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Affiliation(s)
- Divakar R. Aireddy
- Department of Chemical Engineering, Louisiana State University, Baton Rouge, Louisiana 70803, United States
| | - Kunlun Ding
- Department of Chemical Engineering, Louisiana State University, Baton Rouge, Louisiana 70803, United States
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24
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Li C, Zhang Z, Zheng Y, Fang B, Ni J, Lin J, Lin B, Wang X, Jiang L. Titanium modified Ru/CeO2 catalysts for ammonia synthesis. Chem Eng Sci 2022. [DOI: 10.1016/j.ces.2022.117434] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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25
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Castro-Fernández P, Mance D, Liu C, Abdala PM, Willinger E, Rossinelli A, Serykh AI, Pidko EA, Copéret C, Fedorov A, Müller CR. Bulk and Surface Transformations of Ga2O3 Nanoparticle Catalysts for Propane Dehydrogenation Induced by a H2 Treatment. J Catal 2022. [DOI: 10.1016/j.jcat.2022.02.025] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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26
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Tsoukalou A, Serykh AI, Willinger E, Kierzkowska A, Abdala PM, Fedorov A, Müller CR. Hydrogen dissociation sites on indium-based ZrO2-supported catalysts for hydrogenation of CO2 to methanol. Catal Today 2022. [DOI: 10.1016/j.cattod.2021.04.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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27
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Zhang X, Liu L, Wu A, Zhu J, Si R, Guo J, Chen R, Jiang Q, Ju X, Feng J, Xiong Z, He T, Chen P. Synergizing Surface Hydride Species and Ru Clusters on Sm2O3 for Efficient Ammonia Synthesis. ACS Catal 2022. [DOI: 10.1021/acscatal.1c05985] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xilun Zhang
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lin Liu
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Anan Wu
- Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Junfa Zhu
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230026, China
| | - Rui Si
- Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201204, China
| | - Jianping Guo
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Ruting Chen
- Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Qike Jiang
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Xiaohua Ju
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Ji Feng
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhitao Xiong
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Teng He
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Ping Chen
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
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28
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Yasumura S, Wen Y, Toyao T, Kanda Y, Shimizu KI, Maeno Z. Propane Dehydrogenation Catalysis of Titanium Hydrides: Positive Effect of Hydrogen Co-feeding. CHEM LETT 2022. [DOI: 10.1246/cl.210577] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Shunsaku Yasumura
- Institute for Catalysis, Hokkaido University, N-21, W-10, Sapporo, Hokkaido 001-0021, Japan
| | - Yuxiang Wen
- Institute for Catalysis, Hokkaido University, N-21, W-10, Sapporo, Hokkaido 001-0021, Japan
| | - Takashi Toyao
- Institute for Catalysis, Hokkaido University, N-21, W-10, Sapporo, Hokkaido 001-0021, Japan
- Elements Strategy Initiative for Catalysts and Batteries, Kyoto University, Katsura, Kyoto 615-8520, Japan
| | - Yasuharu Kanda
- Applied Chemistry Research Unit, College of Information and Systems, Graduate School of Engineering, Muroran Institute of Technology, 27-1 Mizumoto, Muroran, Hokkaido 050-8585, Japan
| | - Ken-ichi Shimizu
- Institute for Catalysis, Hokkaido University, N-21, W-10, Sapporo, Hokkaido 001-0021, Japan
- Elements Strategy Initiative for Catalysts and Batteries, Kyoto University, Katsura, Kyoto 615-8520, Japan
| | - Zen Maeno
- Institute for Catalysis, Hokkaido University, N-21, W-10, Sapporo, Hokkaido 001-0021, Japan
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29
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Mine S, Toyao T, Hinuma Y, Shimizu KI. Understanding and controlling the formation of surface anion vacancies for catalytic applications. Catal Sci Technol 2022. [DOI: 10.1039/d2cy00014h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Systematic computational efforts aimed at calculating surface anion vacancy formation energies as important descriptors of catalytic performance are summarized.
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Affiliation(s)
- Shinya Mine
- Institute for Catalysis, Hokkaido University, N-21, W-10, 1-5, Sapporo 001-0021, Japan
| | - Takashi Toyao
- Institute for Catalysis, Hokkaido University, N-21, W-10, 1-5, Sapporo 001-0021, Japan
- Elements Strategy Initiative for Catalysts and Batteries, Kyoto University, Katsura, Nishigyo, Kyoto 615-8520, Japan
| | - Yoyo Hinuma
- Department of Energy and Environment, National Institute of Advanced Industrial Science and Technology (AIST), 1-8-31, Midorigaoka, Ikeda 563-8577, Japan
| | - Ken-ichi Shimizu
- Institute for Catalysis, Hokkaido University, N-21, W-10, 1-5, Sapporo 001-0021, Japan
- Elements Strategy Initiative for Catalysts and Batteries, Kyoto University, Katsura, Nishigyo, Kyoto 615-8520, Japan
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30
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Babón JC, Esteruelas MA, López AM. Homogeneous catalysis with polyhydride complexes. Chem Soc Rev 2022; 51:9717-9758. [DOI: 10.1039/d2cs00399f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
This review analyzes the role of transition metal polyhydrides as homogeneous catalysts for organic reactions. Discussed reactions involve nearly every main organic functional group.
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Affiliation(s)
- Juan C. Babón
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
| | - Miguel A. Esteruelas
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
| | - Ana M. López
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
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31
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Huang M, Yasumura S, Li L, Toyao T, Maeno Z, Shimizu KI. High-loading Ga-exchanged MFI zeolites as selective and coke-resistant catalysts for nonoxidative ethane dehydrogenation. Catal Sci Technol 2022. [DOI: 10.1039/d1cy01799c] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A high-loading Ga-exchanged MFI zeolite was developed for efficient ethane dehydrogenation. Its high catalytic performance is ascribed to both the low amount of Brønsted acid sites and the major formation of [GaH2]+ ions among isolated Ga hydrides.
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Affiliation(s)
- Mengwen Huang
- Institute for Catalysis, Hokkaido University, N-21, W-10, Sapporo 001-0021, Japan
| | - Shunsaku Yasumura
- Institute for Catalysis, Hokkaido University, N-21, W-10, Sapporo 001-0021, Japan
| | - Lingcong Li
- Institute for Catalysis, Hokkaido University, N-21, W-10, Sapporo 001-0021, Japan
| | - Takashi Toyao
- Institute for Catalysis, Hokkaido University, N-21, W-10, Sapporo 001-0021, Japan
- Elements Strategy Initiative for Catalysts and Batteries, Kyoto University, Katsura, Kyoto, 615-8520, Japan
| | - Zen Maeno
- Institute for Catalysis, Hokkaido University, N-21, W-10, Sapporo 001-0021, Japan
| | - Ken-ichi Shimizu
- Institute for Catalysis, Hokkaido University, N-21, W-10, Sapporo 001-0021, Japan
- Elements Strategy Initiative for Catalysts and Batteries, Kyoto University, Katsura, Kyoto, 615-8520, Japan
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32
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Wang ZQ, Chu DR, Zhou H, Wu XP, Gong XQ. Role of Low-Coordinated Ce in Hydride Formation and Selective Hydrogenation Reactions on CeO2 Surfaces. ACS Catal 2021. [DOI: 10.1021/acscatal.1c04856] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Zhi-Qiang Wang
- Key Laboratory for Advanced Materials and Joint International Research Laboratory for Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Centre for Computational Chemistry and Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - De-Ren Chu
- Key Laboratory for Advanced Materials and Joint International Research Laboratory for Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Centre for Computational Chemistry and Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
- Shanghai Research Institute of Chemical Industry, Co., Ltd., 345 Yunling Road(E), Shanghai 200062, China
| | - Hui Zhou
- Key Laboratory for Advanced Materials and Joint International Research Laboratory for Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Centre for Computational Chemistry and Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Xin-Ping Wu
- Key Laboratory for Advanced Materials and Joint International Research Laboratory for Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Centre for Computational Chemistry and Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Xue-Qing Gong
- Key Laboratory for Advanced Materials and Joint International Research Laboratory for Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Centre for Computational Chemistry and Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
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33
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Guo Q, Chen R, Guo J, Qin C, Xiong Z, Yan H, Gao W, Pei Q, Wu A, Chen P. Enabling Semihydrogenation of Alkynes to Alkenes by Using a Calcium Palladium Complex Hydride. J Am Chem Soc 2021; 143:20891-20897. [PMID: 34854674 DOI: 10.1021/jacs.1c09489] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Selective hydrogenation of alkynes to alkenes requires a catalytic site with suitable electronic properties for modulating the adsorption and conversion of alkyne, alkene as well as dihydrogen. Here, we report a complex palladium hydride, CaPdH2, featured by electron-rich [PdH2]δ- sites that are surrounded by Ca cations that interacts with C2H2 and C2H4 via σ-bonding to Pd and unusual cation-π interaction with Ca, resulting in a much weaker chemisorption than those of Pd metal catalysts. Concomitantly, the dissociation of H2 and hydrogenation of C2Hx (x = 2-4) species experience significant energy barriers over CaPdH2, which is fundamentally different from those reported Pd-based catalysts. Such a unique catalytic environment enables CaPdH2, the very first complex transition-metal hydride catalyst, to afford a high alkene selectivity for the semihydrogenation of alkynes.
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Affiliation(s)
- Qing Guo
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ruting Chen
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Jianping Guo
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Chao Qin
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Zhitao Xiong
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Hanxue Yan
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Wenbo Gao
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Qijun Pei
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Anan Wu
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Ping Chen
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.,University of Chinese Academy of Sciences, Beijing 100049, China
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34
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Zhizhko PA, Bushkov NS, Pichugov AV, Zarubin DN. Oxo/imido heterometathesis: From molecular stoichiometric studies to well-defined heterogeneous catalysts. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.214112] [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]
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35
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Praveen CS, Comas-Vives A. Activity Trends in the Propane Dehydrogenation Reaction Catalyzed by MIII Sites on an Amorphous SiO2 Model: A Theoretical Perspective. Top Catal 2021. [DOI: 10.1007/s11244-021-01535-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
AbstractOne class of particularly active catalysts for the Propane Dehydrogenation (PDH) reaction are well-defined M(III) sites on amorphous SiO2. In the present work, we focus on evaluating the catalytic trends of the PDH for four M(III) single-sites (Cr, Mo, Ga and In) on a realistic amorphous model of SiO2 using density functional theory-based calculations and the energetic span model. We considered a catalytic pathway spanned by three reaction steps taking place on selected MIII–O pair of the SiO2 model: σ-bond metathesis of propane on a MIII–O bond to form M-propyl and O–H group, a β-H transfer step forming M–H and propene, and the H–H coupling step producing H2 and regenerating the initial M–O bond. With the application of the energetic span model, we found that the calculated catalytic activity for Ga and Cr is comparable to the ones reported at the experimental level, enabling us to benchmark the model and the methodology used. Furthermore, results suggest that both In(III) and Mo(III) on SiO2 are potential active catalysts for PDH, provided they can be synthesized and are stable under PDH reaction conditions.
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36
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38
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Li Z, Huang W. Hydride species on oxide catalysts. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2021; 33:433001. [PMID: 34311453 DOI: 10.1088/1361-648x/ac17ad] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Accepted: 07/26/2021] [Indexed: 06/13/2023]
Abstract
Hydride species on oxide catalysts are widely involved in oxide-catalyzed reactions, and relevant fundamental understanding is important to establish reaction mechanisms and structure-performance relations of oxide catalysts. In this topical review, recent progresses on the formation and reactivity of hydride species on the surface or in the bulk of oxides are briefly summarized. Firstly, characterization techniques for hydride species are introduced. Secondly, formation of hydride species on the surface or in the bulk of various oxides and their reactivity in oxide-catalyzed hydrogenation and dehydrogenation reactions are reviewed. Finally, short summary and outlook are given.
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Affiliation(s)
- Zhaorui Li
- Hefei National Laboratory for Physical Sciences at the Microscale, Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, and Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, People's Republic of China
| | - Weixin Huang
- Hefei National Laboratory for Physical Sciences at the Microscale, Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, and Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, People's Republic of China
- Dalian National Laboratory for Clean Energy, Dalian 116023, People's Republic of China
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39
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Matsuda S, Masuda S, Takano S, Ichikuni N, Tsukuda T. Synergistic Effect in Ir- or Pt-Doped Ru Nanoparticles: Catalytic Hydrogenation of Carbonyl Compounds under Ambient Temperature and H 2 Pressure. ACS Catal 2021. [DOI: 10.1021/acscatal.1c02703] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Shotaro Matsuda
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Shinya Masuda
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Shinjiro Takano
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Nobuyuki Ichikuni
- Department of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University, Yayoicho 1-33, Inage-ku, Chiba 263-8522, Japan
| | - Tatsuya Tsukuda
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
- Elements Strategy Initiative for Catalysts and Batteries (ESICB), Kyoto University, Katsura, Kyoto 615-8520, Japan
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40
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Mörsdorf JM, Wadepohl H, Ballmann J. Reductive Hydrogenation under Single-Site Control: Generation and Reactivity of a Transient NHC-Stabilized Tantalum(III) Alkoxide. Inorg Chem 2021; 60:9785-9795. [PMID: 34111351 DOI: 10.1021/acs.inorgchem.1c01075] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
One of the most attractive routes for the preparation of reactive tantalum(III) species relies on the efficient salt-free hydrogenolysis of tantalum(V) alkyls or tantalum(V) alkylidenes, a process known as reductive hydrogenation. For silica-crafted tantalum alkyls and alkylidenes, this process necessarily proceeds at well-separated tantalum centers, while related reductive hydrogenations in homogeneous solution commonly involve dimeric complexes. Herein, an NHC scaffold was coordinated to a novel tri(alkoxido)tantalum(V) alkylidene to circumvent the formation of dimers during reductive hydrogenation. Employing this new model system, a key intermediate of the process, namely a hydrido-tantalum alkyl, was isolated for the first time and shown to exhibit a bidirectional reactivity. Upon being heated, the latter complex was found to undergo either an α-elimination or a reductive alkane elimination. In the (overall unproductive) α-elimination step, H2 and the parent alkylidene were regenerated, while the sought-after transient d2-configured tantalum(III) derivative was produced along the reaction coordinate of the reductive alkane elimination. The reactive low-valence metal center was found to rapidly attack one of the NHC substituents via an oxidative C-H activation, which led to the formation of a cyclometalated tantalum(V) hydride. The proposed elemental steps are in line with kinetic data, deuterium labeling experiments, and density functional theory (DFT) modeling studies. DFT calculations also indicated that the S = 0 spin ground state of the Ta(III) center plays a crucial role in the cyclometalation reaction. The cyclometalated Ta(V) hydride was further investigated and reacted with several alkenes and alkynes. In addition to a rich insertion and isomerization chemistry, these studies also revealed that the former hydride may undergo a formal cycloreversion and thus serve as a tantalum(III) synthon, although the original tantalum(III) intermediate is not involved in this process. The latter reactivity was observed upon reaction with internal alkynes and led to the corresponding η2-alkyne derivatives via vinyl intermediates, which rearrange via a remarkable, hitherto unprecedented, hydrogen shift reaction.
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Affiliation(s)
- Jean-Marc Mörsdorf
- Anorganisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, D-69120 Heidelberg, Germany
| | - Hubert Wadepohl
- Anorganisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, D-69120 Heidelberg, Germany
| | - Joachim Ballmann
- Anorganisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, D-69120 Heidelberg, Germany
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41
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Maier S, Cronin SP, Vu Dinh MA, Li Z, Dyballa M, Nowakowski M, Bauer M, Estes DP. Immobilized Platinum Hydride Species as Catalysts for Olefin Isomerizations and Enyne Cycloisomerizations. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00216] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Sarah Maier
- Institute of Technical Chemistry, University of Stuttgart, Pfaffenwaldring 55, Stuttgart D-70569, Germany
| | - Steve P. Cronin
- Institute of Technical Chemistry, University of Stuttgart, Pfaffenwaldring 55, Stuttgart D-70569, Germany
| | - Manh-Anh Vu Dinh
- Institute of Technical Chemistry, University of Stuttgart, Pfaffenwaldring 55, Stuttgart D-70569, Germany
| | - Zheng Li
- Institute of Technical Chemistry, University of Stuttgart, Pfaffenwaldring 55, Stuttgart D-70569, Germany
| | - Michael Dyballa
- Institute of Technical Chemistry, University of Stuttgart, Pfaffenwaldring 55, Stuttgart D-70569, Germany
| | - Michal Nowakowski
- Department of Chemistry, University of Paderborn, Warburger Straße 100, Paderborn D-33098, Germany
| | - Matthias Bauer
- Department of Chemistry, University of Paderborn, Warburger Straße 100, Paderborn D-33098, Germany
| | - Deven P. Estes
- Institute of Technical Chemistry, University of Stuttgart, Pfaffenwaldring 55, Stuttgart D-70569, Germany
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42
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Praveen CS, Borosy AP, Copéret C, Comas-Vives A. Strain in Silica-Supported Ga(III) Sites: Neither Too Much nor Too Little for Propane Dehydrogenation Catalytic Activity. Inorg Chem 2021; 60:6865-6874. [PMID: 33545002 PMCID: PMC8483445 DOI: 10.1021/acs.inorgchem.0c03135] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Well-defined Ga(III) sites on SiO2 are highly active, selective, and stable catalysts in the propane dehydrogenation (PDH) reaction. In this contribution, we evaluate the catalytic activity toward PDH of tricoordinated and tetracoordinated Ga(III) sites on SiO2 by means of first-principles calculations using realistic amorphous periodic SiO2 models. We evaluated the three reaction steps in PDH, namely, the C-H activation of propane to form propyl, the β-hydride (β-H) transfer to form propene and a gallium hydride, and the H-H coupling to release H2, regenerating the initial Ga-O bond and closing the catalytic cycle. Our work shows how Brønsted-Evans-Polanyi relationships are followed to a certain extent for these three reaction steps on Ga(III) sites on SiO2 and highlights the role of the strain of the reactive Ga-O pairs on such sites of realistic amorphous SiO2 models. It also shows how transition-state scaling holds very well for the β-H transfer step. While highly strained sites are very reactive sites for the initial C-H activation, they are more difficult to regenerate. The corresponding less strained sites are not reactive enough, pointing to the need for the right balance in strain to be an effective site for PDH. Overall, our work provides an understanding of the intrinsic activity of acidic Ga single sites toward the PDH reaction and paves the way toward the design and prediction of better single-site catalysts on SiO2 for the PDH reaction.
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Affiliation(s)
- C S Praveen
- Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir Prelog-Weg 1-5, CH-8093 Zürich, Switzerland
| | - A P Borosy
- Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir Prelog-Weg 1-5, CH-8093 Zürich, Switzerland
| | - C Copéret
- Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir Prelog-Weg 1-5, CH-8093 Zürich, Switzerland
| | - A Comas-Vives
- Department of Chemistry, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Catalonia, Spain
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43
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Czerny F, Searles K, Šot P, Teichert JF, Menezes PW, Copéret C, Driess M. Well-Defined, Silica-Supported Homobimetallic Nickel Hydride Hydrogenation Catalyst. Inorg Chem 2021; 60:5483-5487. [PMID: 33797227 DOI: 10.1021/acs.inorgchem.0c03188] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
There is an increasing interest to replace precious metal-based catalysts by earth-abundant nonprecious metals due to higher costs, toxicity, and declining availability of the former. Here, the synthesis of a well-defined supported nickel hydrogenation catalyst prepared by surface organometallic chemistry is reported. For this purpose, [LNi(μ-H)]2 (L = HC(CMeNC6H3(iPr)2)2) was grafted on partially dehydroxylated silica to give a homobimetallic H- and O(silica)-bridged Ni2 complex. The structure of the latter was confirmed by infrared spectroscopy, X-ray absorption near-edge structure, and extended X-ray absorption fine structure analyses as well as hydride titration studies. The immobilized catalyst was capable of hydrogenating alkenes and alkynes at low temperatures without prior activation. As an example, ethene can be hydrogenated with an initial turnover frequency of 25.5 min-1 at room temperature.
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Affiliation(s)
- Frank Czerny
- Department of Chemistry: Metalorganics and Inorganic Materials, Technische Universität Berlin, 10623 Berlin, Germany
| | - Keith Searles
- Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611, United States
| | - Petr Šot
- Department of Chemistry and Applied Biosciences, ETH Zürich, 8093 Zürich, Switzerland
| | - Johannes F Teichert
- Department of Chemistry, Sustainable Synthetic Methods, Technische Universität Berlin, 10623 Berlin, Germany
| | - Prashanth W Menezes
- Department of Chemistry: Metalorganics and Inorganic Materials, Technische Universität Berlin, 10623 Berlin, Germany
| | - Christophe Copéret
- Department of Chemistry and Applied Biosciences, ETH Zürich, 8093 Zürich, Switzerland
| | - Matthias Driess
- Department of Chemistry: Metalorganics and Inorganic Materials, Technische Universität Berlin, 10623 Berlin, Germany
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44
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Feng WH, Yu MM, Wang LJ, Miao YT, Shakouri M, Ran J, Hu Y, Li Z, Huang R, Lu YL, Gao D, Wu JF. Insights into Bimetallic Oxide Synergy during Carbon Dioxide Hydrogenation to Methanol and Dimethyl Ether over GaZrO x Oxide Catalysts. ACS Catal 2021. [DOI: 10.1021/acscatal.0c05410] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Wen-Hua Feng
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, Advanced Catalysis Center, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Ming-Ming Yu
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, Advanced Catalysis Center, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Li-Jun Wang
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, Advanced Catalysis Center, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Yu-Ting Miao
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, Advanced Catalysis Center, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Mohsen Shakouri
- Canadian Light Source, Saskatoon, Saskatchewan S7N 2V3, Canada
| | - Jiaqi Ran
- Key Laboratory for Magnetism and Magnetic Materials of MOE, Key Laboratory of Special Function Materials and Structure Design of MOE, Lanzhou University, Lanzhou 730000, P. R. China
| | - Yongfeng Hu
- Canadian Light Source, Saskatoon, Saskatchewan S7N 2V3, Canada
| | - Zhiyun Li
- Vacuum Interconnected Nanotech Workstation, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences (CAS), Suzhou 215123, P. R. China
| | - Rong Huang
- Vacuum Interconnected Nanotech Workstation, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences (CAS), Suzhou 215123, P. R. China
| | - Yi-Lin Lu
- Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, P. R. China
| | - Daqiang Gao
- Key Laboratory for Magnetism and Magnetic Materials of MOE, Key Laboratory of Special Function Materials and Structure Design of MOE, Lanzhou University, Lanzhou 730000, P. R. China
| | - Jian-Feng Wu
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, Advanced Catalysis Center, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
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Li Z, Werner K, Chen L, Jia A, Qian K, Zhong J, You R, Wu L, Zhang L, Pan H, Wu X, Gong X, Shaikhutdinov S, Huang W, Freund H. Interaction of Hydrogen with Ceria: Hydroxylation, Reduction, and Hydride Formation on the Surface and in the Bulk. Chemistry 2021; 27:5268-5276. [PMID: 33355967 PMCID: PMC8048454 DOI: 10.1002/chem.202005374] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Indexed: 11/11/2022]
Abstract
The study reports the first attempt to address the interplay between surface and bulk in hydride formation in ceria (CeO2 ) by combining experiment, using surface sensitive and bulk sensitive spectroscopic techniques on the two sample systems, i.e., CeO2 (111) thin films and CeO2 powders, and theoretical calculations of CeO2 (111) surfaces with oxygen vacancies (Ov ) at the surface and in the bulk. We show that, on a stoichiometric CeO2 (111) surface, H2 dissociates and forms surface hydroxyls (OH). On the pre-reduced CeO2-x samples, both films and powders, hydroxyls and hydrides (Ce-H) are formed on the surface as well as in the bulk, accompanied by the Ce3+ ↔ Ce4+ redox reaction. As the Ov concentration increases, hydroxyl is destabilized and hydride becomes more stable. Surface hydroxyl is more stable than bulk hydroxyl, whereas bulk hydride is more stable than surface hydride. The surface hydride formation is the kinetically favorable process at relatively low temperatures, and the resulting surface hydride may diffuse into the bulk region and be stabilized therein. At higher temperatures, surface hydroxyls can react to produce water and create additional oxygen vacancies, increasing its concentration, which controls the H2 /CeO2 interaction. The results demonstrate a large diversity of reaction pathways, which have to be taken into account for better understanding of reactivity of ceria-based catalysts in a hydrogen-rich atmosphere.
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Affiliation(s)
- Zhaorui Li
- Hefei National Laboratory for Physical Sciences at MicroscaleKey Laboratory of Surface and Interface Chemistry and Energy Catalysis, of Anhui Higher Education InstitutesCAS Key Laboratory of Materials, for Energy Conversion and Department of Chemical PhysicsUniversity of Science and Technology of ChinaHefei230026P. R. China
| | - Kristin Werner
- Fritz-Haber-Institut der Max-Planck GesellschaftFaradayweg 4–6Berlin14195Germany
| | - Lu Chen
- Key Laboratory for Advanced Materials and Joint International Research, Laboratory for Precision Chemistry and Molecular EngineeringFeringa, Nobel Prize Scientist Joint Research CenterCentre for Computational, Chemistry and Research Institute of Industrial CatalysisSchool of, Chemistry and Molecular EngineeringEast China University of Science, and Technology130 Meilong RoadShanghai200237P. R. China
| | - Aiping Jia
- Hefei National Laboratory for Physical Sciences at MicroscaleKey Laboratory of Surface and Interface Chemistry and Energy Catalysis, of Anhui Higher Education InstitutesCAS Key Laboratory of Materials, for Energy Conversion and Department of Chemical PhysicsUniversity of Science and Technology of ChinaHefei230026P. R. China
- Key Laboratory of the Ministry of Education for Advanced Catalysis, MaterialsInstitute of Physical ChemistryZhejiang Normal UniversityJinhua321004P. R. China
| | - Kun Qian
- Hefei National Laboratory for Physical Sciences at MicroscaleKey Laboratory of Surface and Interface Chemistry and Energy Catalysis, of Anhui Higher Education InstitutesCAS Key Laboratory of Materials, for Energy Conversion and Department of Chemical PhysicsUniversity of Science and Technology of ChinaHefei230026P. R. China
| | - Jian‐Qiang Zhong
- Fritz-Haber-Institut der Max-Planck GesellschaftFaradayweg 4–6Berlin14195Germany
| | - Rui You
- Hefei National Laboratory for Physical Sciences at MicroscaleKey Laboratory of Surface and Interface Chemistry and Energy Catalysis, of Anhui Higher Education InstitutesCAS Key Laboratory of Materials, for Energy Conversion and Department of Chemical PhysicsUniversity of Science and Technology of ChinaHefei230026P. R. China
| | - Lihui Wu
- National Synchrotron Radiation LaboratoryUniversity of, Science and Technology of ChinaHefei230029P. R. China
| | - Liyuan Zhang
- Hefei National Laboratory for Physical Sciences at MicroscaleKey Laboratory of Surface and Interface Chemistry and Energy Catalysis, of Anhui Higher Education InstitutesCAS Key Laboratory of Materials, for Energy Conversion and Department of Chemical PhysicsUniversity of Science and Technology of ChinaHefei230026P. R. China
| | - Haibin Pan
- National Synchrotron Radiation LaboratoryUniversity of, Science and Technology of ChinaHefei230029P. R. China
| | - Xin‐Ping Wu
- Key Laboratory for Advanced Materials and Joint International Research, Laboratory for Precision Chemistry and Molecular EngineeringFeringa, Nobel Prize Scientist Joint Research CenterCentre for Computational, Chemistry and Research Institute of Industrial CatalysisSchool of, Chemistry and Molecular EngineeringEast China University of Science, and Technology130 Meilong RoadShanghai200237P. R. China
| | - Xue‐Qing Gong
- Key Laboratory for Advanced Materials and Joint International Research, Laboratory for Precision Chemistry and Molecular EngineeringFeringa, Nobel Prize Scientist Joint Research CenterCentre for Computational, Chemistry and Research Institute of Industrial CatalysisSchool of, Chemistry and Molecular EngineeringEast China University of Science, and Technology130 Meilong RoadShanghai200237P. R. China
| | - Shamil Shaikhutdinov
- Fritz-Haber-Institut der Max-Planck GesellschaftFaradayweg 4–6Berlin14195Germany
| | - Weixin Huang
- Hefei National Laboratory for Physical Sciences at MicroscaleKey Laboratory of Surface and Interface Chemistry and Energy Catalysis, of Anhui Higher Education InstitutesCAS Key Laboratory of Materials, for Energy Conversion and Department of Chemical PhysicsUniversity of Science and Technology of ChinaHefei230026P. R. China
- Dalian National Laboratory for Clean EnergyDalian116023P. R. China
| | - Hans‐Joachim Freund
- Fritz-Haber-Institut der Max-Planck GesellschaftFaradayweg 4–6Berlin14195Germany
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Agarwal RG, Kim HJ, Mayer JM. Nanoparticle O-H Bond Dissociation Free Energies from Equilibrium Measurements of Cerium Oxide Colloids. J Am Chem Soc 2021; 143:2896-2907. [PMID: 33565871 DOI: 10.1021/jacs.0c12799] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A novel equilibrium strategy for measuring the hydrogen atom affinity of colloidal metal oxide nanoparticles is presented. Reactions between oleate-capped cerium oxide nanoparticle colloids (nanoceria) and organic proton-coupled electron transfer (PCET) reagents are used as a model system. Nanoceria redox changes, or hydrogen loadings, and overall reaction stoichiometries were followed by both 1H NMR and X-ray absorption near-edge spectroscopies. These investigations revealed that, in many cases, reactions between nanoceria and PCET reagents reach equilibrium states with good mass balance. Each equilibrium state is a direct measure of the bond strength, or bond dissociation free energy (BDFE), between nanoceria and hydrogen. Further studies, including those with larger nanoceria, indicated that the relevant bond is a surface O-H. Thus, we have measured surface O-H BDFEs for nanoceria-the first experimental BDFEs for any nanoscale metal oxide. Remarkably, the measured CeO-H BDFEs span 13 kcal mol-1 (0.56 eV) with changes in the average redox state of the nanoceria colloid. Possible chemical models for this strong dependence are discussed. We propose that the tunability of ceria BDFEs may be important in explaining its effectiveness in catalysis. More generally, metal oxide BDFEs have been used as predictors of catalyst efficacy that, traditionally, have only been accessible by computational methods. These results provide important experimental benchmarks for metal oxide BDFEs and demonstrate that the concepts of molecular bond strength thermochemistry can be applied to nanoscale materials.
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Affiliation(s)
- Rishi G Agarwal
- Department of Chemistry, Yale University, New Haven, Connecticut 06520-8107, United States
| | - Hyun-Jo Kim
- Department of Chemistry, Yale University, New Haven, Connecticut 06520-8107, United States
| | - James M Mayer
- Department of Chemistry, Yale University, New Haven, Connecticut 06520-8107, United States
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Bettahar MM. Role of H and OH surface species in the reduction of the C O double bond. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2020.111338] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Hinuma Y, Mine S, Toyao T, Maeno Z, Shimizu KI. Surface activation by electron scavenger metal nanorod adsorption on TiH 2, TiC, TiN, and Ti 2O 3. Phys Chem Chem Phys 2021; 23:16577-16593. [PMID: 34320045 DOI: 10.1039/d1cp02068d] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Metal/oxide support perimeter sites are known to provide unique properties because the nearby metal changes the local environment on the support surface. In particular, the electron scavenger effect reduces the energy necessary for surface anion desorption, and thereby contributes to activation of the (reverse) Mars-van Krevelen mechanism. This study investigated the possibility of such activation in hydrides, carbides, nitrides, and sulfides. The work functions (WFs) of known hydrides, carbides, nitrides, oxides, and sulfides with group 3, 4, or 5 cations (Sc, Y, La, Ti, Zr, Hf, V, Nb, and Ta) were calculated. The WFs of most hydrides, carbides, and nitrides are smaller than the WF of Ag, implying that the electron scavenger effect may occur when late transition metal nanoparticles are adsorbed on the surface. The WF of oxides and sulfides decreases when reduced. The surface anion vacancy formation energy correlates well with the bulk formation energy in carbides and nitrides, while almost no correlation is found in hydrides because of the small range of surface hydrogen vacancy formation energy values. The electron scavenger effect is explicitly observed in nanorods adsorbed on TiH2 and Ti2O3; the surface vacancy formation energy decreases at anion sites near the nanorod, and charge transfer to the nanorod happens when an anion is removed at such sites. Activation of hydrides, carbides, and nitrides by nanorod adsorption and screening support materials through WF calculation are expected to open up a new category of supported catalysts.
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Affiliation(s)
- Yoyo Hinuma
- Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, 226-8502, Japan
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