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Iemhoff A, Vennewald M, Palkovits R. Single-Atom Catalysts on Covalent Triazine Frameworks: at the Crossroad between Homogeneous and Heterogeneous Catalysis. Angew Chem Int Ed Engl 2023; 62:e202212015. [PMID: 36108176 PMCID: PMC10108136 DOI: 10.1002/anie.202212015] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Revised: 09/14/2022] [Accepted: 09/14/2022] [Indexed: 02/04/2023]
Abstract
Heterogeneous single-site and single-atom catalysts potentially enable combining the high catalytic activity and selectivity of molecular catalysts with the easy continuous operation and recycling of solid catalysts. In recent years, covalent triazine frameworks (CTFs) found increasing attention as support materials for particulate and isolated metal species. Bearing a high fraction of nitrogen sites, they allow coordinating molecular metal species and stabilizing particulate metal species, respectively. Dependent on synthesis method and pretreatment of CTFs, materials resembling well-defined highly crosslinked polymers or materials comparable to structurally ill-defined nitrogen-containing carbons result. Accordingly, CTFs serve as model systems elucidating the interaction of single-site, single-atom and particulate metal species with such supports. Factors influencing the transition between molecular and particulate systems are discussed to allow deriving tailored catalyst systems.
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Affiliation(s)
- Andree Iemhoff
- Institut für Technische und Makromolekulare Chemie, RWTH Aachen University, Worringerweg 2, 52074, Aachen, Germany
| | - Maurice Vennewald
- Institut für Technische und Makromolekulare Chemie, RWTH Aachen University, Worringerweg 2, 52074, Aachen, Germany
| | - Regina Palkovits
- Institut für Technische und Makromolekulare Chemie, RWTH Aachen University, Worringerweg 2, 52074, Aachen, Germany.,Max-Planck-Institute for Chemical Energy Conversion, Stiftstrasse 34, 45470, Mülheim an der Ruhr, Germany
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Formation of Ir–MgO Solid Solutions Analyzed with X-ray Absorption Spectroscopy. CATALYSIS SURVEYS FROM ASIA 2022. [DOI: 10.1007/s10563-022-09378-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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3
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Guo F, Li J, Zhang Y, Yang X. Enhanced Stability and Catalytic Performance of Active Rh Sites on Al 2O 3 Via Atomic Layer Deposited ZrO 2. J Phys Chem Lett 2022; 13:8825-8832. [PMID: 36107836 DOI: 10.1021/acs.jpclett.2c02219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Modulating the Rh active sites on surfaces of Al2O3 is crucial to developing effective three-way catalysts. Herein, an ultralow amount of ZrO2 (0.0179%) was deposited onto Al2O3 nanorods via atomic layer deposition (ALD) to form a catalyst with both thermal stability and low-temperature activity. The results demonstrate that the ALD-ZrO2 is conducive to improve the catalytic activity of the Rh site and inhibit the formation of irreducible Rh species at high temperature. The obtained catalysts show satisfactory performance for a model NO-CO reaction even after thermal aging at 1050 °C. This strategy shows that a molecularly precise synthesis can lead to the robust promotion of Rh activity under low temperature and provide a promising path toward reducing the deactivation of catalysts at high temperature.
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Affiliation(s)
- Feng Guo
- Department of Chemistry, Nanchang University, Nanchang 330031, P. R. China
- Ganjiang Innovation Academy/Jiangxi Institute of Rare Earths, Chinese Academy of Sciences, Ganzhou 341000, P. R. China
| | - Jingwei Li
- College of Chemistry and Chemical Engineering, Shanxi Datong University, Datong 037009, P. R. China
| | - Yibo Zhang
- Ganjiang Innovation Academy/Jiangxi Institute of Rare Earths, Chinese Academy of Sciences, Ganzhou 341000, P. R. China
- State Key Laboratory of Rare Earth Resource Utilization, Jilin Province Key Laboratory of Green Chemistry and Process, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
- University of Science and Technology of China, Hefei 230026, Anhui, P. R. China
| | - Xiangguang Yang
- Ganjiang Innovation Academy/Jiangxi Institute of Rare Earths, Chinese Academy of Sciences, Ganzhou 341000, P. R. China
- State Key Laboratory of Rare Earth Resource Utilization, Jilin Province Key Laboratory of Green Chemistry and Process, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
- University of Science and Technology of China, Hefei 230026, Anhui, P. R. China
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Serna P, Rodríguez-Fernández A, Yacob S, Kliewer C, Moliner M, Corma A. Single-Site vs. Cluster Catalysis in High Temperature Oxidations. Angew Chem Int Ed Engl 2021; 60:15954-15962. [PMID: 33881798 DOI: 10.1002/anie.202102339] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 04/07/2021] [Indexed: 12/28/2022]
Abstract
The behavior of single Pt atoms and small Pt clusters was investigated for high-temperature oxidations. The high stability of these molecular sites in CHA is a key to intrinsic structure-performance descriptions of elemental steps such as O2 dissociation, and subsequent oxidation catalysis. Subtle changes in the atomic structure of Pt are responsible for drastic changes in performance driven by specific gas/metal/support interactions. Whereas single Pt atoms and Pt clusters (> ca. 1 nm) are unable to activate, scramble, and desorb two O2 molecules at moderate T (200 °C), clusters <1 nm do so catalytically, but undergo oxidative fragmentation. Oxidation of alkanes at high T is attributed to stable single Pt atoms, and the C-H cleavage is inferred to be rate-determining and less sensitive to changes in metal nuclearity compared to its effect on O2 scrambling. In contrast, when combustion involves CO, catalysis is dominated by metal clusters, not single Pt atoms.
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Affiliation(s)
- Pedro Serna
- ExxonMobil Research and Engineering Co., Corporate Strategic Research, Annandale, NJ, 08801, USA
| | - Aida Rodríguez-Fernández
- Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Cientificas (UPV-CSIC), Av. de los Naranjos, s/n, 46022, Valencia, Spain
| | - Sara Yacob
- ExxonMobil Research and Engineering Co., Corporate Strategic Research, Annandale, NJ, 08801, USA
| | - Christine Kliewer
- ExxonMobil Research and Engineering Co., Corporate Strategic Research, Annandale, NJ, 08801, USA
| | - Manuel Moliner
- Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Cientificas (UPV-CSIC), Av. de los Naranjos, s/n, 46022, Valencia, Spain
| | - Avelino Corma
- Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Cientificas (UPV-CSIC), Av. de los Naranjos, s/n, 46022, Valencia, Spain
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Serna P, Rodríguez‐Fernández A, Yacob S, Kliewer C, Moliner M, Corma A. Single‐Site vs. Cluster Catalysis in High Temperature Oxidations. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202102339] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Pedro Serna
- ExxonMobil Research and Engineering Co. Corporate Strategic Research Annandale NJ 08801 USA
| | - Aida Rodríguez‐Fernández
- Instituto de Tecnología Química, Universitat Politècnica de València—Consejo Superior de Investigaciones Cientificas (UPV-CSIC) Av. de los Naranjos, s/n 46022 Valencia Spain
| | - Sara Yacob
- ExxonMobil Research and Engineering Co. Corporate Strategic Research Annandale NJ 08801 USA
| | - Christine Kliewer
- ExxonMobil Research and Engineering Co. Corporate Strategic Research Annandale NJ 08801 USA
| | - Manuel Moliner
- Instituto de Tecnología Química, Universitat Politècnica de València—Consejo Superior de Investigaciones Cientificas (UPV-CSIC) Av. de los Naranjos, s/n 46022 Valencia Spain
| | - Avelino Corma
- Instituto de Tecnología Química, Universitat Politècnica de València—Consejo Superior de Investigaciones Cientificas (UPV-CSIC) Av. de los Naranjos, s/n 46022 Valencia Spain
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Yuan W, Zhang D, Ou Y, Fang K, Zhu B, Yang H, Hansen TW, Wagner JB, Zhang Z, Gao Y, Wang Y. Direct In Situ TEM Visualization and Insight into the Facet‐Dependent Sintering Behaviors of Gold on TiO
2. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201811933] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Wentao Yuan
- State Key Laboratory of Silicon MaterialsSchool of Materials Science and EngineeringZhejiang University Hangzhou 310027 China
| | - Dawei Zhang
- Division of Interfacial Water and Key Laboratory of Interfacial Physics and TechnologyShanghai Institute of Applied PhysicsChinese Academy of Sciences Shanghai 201800 China
| | - Yang Ou
- State Key Laboratory of Silicon MaterialsSchool of Materials Science and EngineeringZhejiang University Hangzhou 310027 China
| | - Ke Fang
- State Key Laboratory of Silicon MaterialsSchool of Materials Science and EngineeringZhejiang University Hangzhou 310027 China
| | - Beien Zhu
- Division of Interfacial Water and Key Laboratory of Interfacial Physics and TechnologyShanghai Institute of Applied PhysicsChinese Academy of Sciences Shanghai 201800 China
| | - Hangsheng Yang
- State Key Laboratory of Silicon MaterialsSchool of Materials Science and EngineeringZhejiang University Hangzhou 310027 China
| | - Thomas W. Hansen
- Center for Electron NanoscopyTechnical University of Denmark 2800 Kgs. Lyngby Denmark
| | - Jakob B. Wagner
- Center for Electron NanoscopyTechnical University of Denmark 2800 Kgs. Lyngby Denmark
| | - Ze Zhang
- State Key Laboratory of Silicon MaterialsSchool of Materials Science and EngineeringZhejiang University Hangzhou 310027 China
| | - Yi Gao
- Division of Interfacial Water and Key Laboratory of Interfacial Physics and TechnologyShanghai Institute of Applied PhysicsChinese Academy of Sciences Shanghai 201800 China
| | - Yong Wang
- State Key Laboratory of Silicon MaterialsSchool of Materials Science and EngineeringZhejiang University Hangzhou 310027 China
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Yuan W, Zhang D, Ou Y, Fang K, Zhu B, Yang H, Hansen TW, Wagner JB, Zhang Z, Gao Y, Wang Y. Direct In Situ TEM Visualization and Insight into the Facet-Dependent Sintering Behaviors of Gold on TiO 2. Angew Chem Int Ed Engl 2018; 57:16827-16831. [PMID: 30397982 DOI: 10.1002/anie.201811933] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Indexed: 11/09/2022]
Abstract
Preventing sintering of supported nanocatalysts is an important issue in nanocatalysis. A feasible way is to choose a suitable support. However, whether the metal-support interactions promote or prevent the sintering has not been fully identified. Now, completely different sintering behaviors of Au nanoparticles on distinct anatase TiO2 surfaces have been determined by in situ TEM. The full in situ sintering processes of Au nanoparticles were visualized on TiO2 (101) surface, which coupled the Ostwald ripening and particle migration coalescence. In contrast, no sintering of Au on TiO2 anatase (001) surface was observed under the same conditions. This facet-dependent sintering mechanism is fully explained by the density function theory calculations. This work not only offers direct evidence of the important role of supports in the sintering process, but also provides insightful information for the design of sintering-resistant nanocatalysts.
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Affiliation(s)
- Wentao Yuan
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Dawei Zhang
- Division of Interfacial Water and Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, China
| | - Yang Ou
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Ke Fang
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Beien Zhu
- Division of Interfacial Water and Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, China
| | - Hangsheng Yang
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Thomas W Hansen
- Center for Electron Nanoscopy, Technical University of Denmark, 2800 Kgs., Lyngby, Denmark
| | - Jakob B Wagner
- Center for Electron Nanoscopy, Technical University of Denmark, 2800 Kgs., Lyngby, Denmark
| | - Ze Zhang
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Yi Gao
- Division of Interfacial Water and Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, China
| | - Yong Wang
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
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Koizumi K, Nobusada K, Boero M. Simple but Efficient Method for Inhibiting Sintering and Aggregation of Catalytic Pt Nanoclusters on Metal-Oxide Supports. Chemistry 2016; 23:1531-1538. [DOI: 10.1002/chem.201604188] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2016] [Indexed: 01/08/2023]
Affiliation(s)
- Kenichi Koizumi
- Department of Theoretical and Computational Molecular Science; Institute for Molecular Science, Myodaiji; Okazaki 444-8585 Japan
- Elements Strategy Initiative for Catalysts and Batteries (ESICB); Kyoto University, Katsura; Kyoto 615-8520 Japan
| | - Katsuyuki Nobusada
- Department of Theoretical and Computational Molecular Science; Institute for Molecular Science, Myodaiji; Okazaki 444-8585 Japan
- Elements Strategy Initiative for Catalysts and Batteries (ESICB); Kyoto University, Katsura; Kyoto 615-8520 Japan
| | - Mauro Boero
- Institut de Physique et Chimie des Matériaux de Strasbourg UMR 7504; University of Strasbourg and CNRS; 23 rue du Loess 67034 Strasbourg France
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Gao X, Liu H, Hidajat K, Kawi S. Anti-Coking Ni/SiO2Catalyst for Dry Reforming of Methane: Role of Oleylamine/Oleic Acid Organic Pair. ChemCatChem 2015. [DOI: 10.1002/cctc.201500787] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Xingyuan Gao
- Department of Chemical and Biomolecular Engineering; National University of Singapore; 4 Engineering Drive 4 Singapore 117585 Singapore
| | - Hejun Liu
- Department of Chemical and Biomolecular Engineering; National University of Singapore; 4 Engineering Drive 4 Singapore 117585 Singapore
| | - Kus Hidajat
- Department of Chemical and Biomolecular Engineering; National University of Singapore; 4 Engineering Drive 4 Singapore 117585 Singapore
| | - Sibudjing Kawi
- Department of Chemical and Biomolecular Engineering; National University of Singapore; 4 Engineering Drive 4 Singapore 117585 Singapore
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11
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Saw ET, Oemar U, Ang ML, Hidajat K, Kawi S. Highly Active and Stable Bimetallic Nickel-Copper Core-Ceria Shell Catalyst for High-Temperature Water-Gas Shift Reaction. ChemCatChem 2015. [DOI: 10.1002/cctc.201500481] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Eng Toon Saw
- Department of Chemical and Biomolecular Engineering; National University of Singapore; 4 Engineering Drive 4 119260 Singapore, Fax: (+65) 67791936
| | - Usman Oemar
- Department of Chemical and Biomolecular Engineering; National University of Singapore; 4 Engineering Drive 4 119260 Singapore, Fax: (+65) 67791936
| | - Ming Li Ang
- Department of Chemical and Biomolecular Engineering; National University of Singapore; 4 Engineering Drive 4 119260 Singapore, Fax: (+65) 67791936
| | - Kus Hidajat
- Department of Chemical and Biomolecular Engineering; National University of Singapore; 4 Engineering Drive 4 119260 Singapore, Fax: (+65) 67791936
| | - Sibudjing Kawi
- Department of Chemical and Biomolecular Engineering; National University of Singapore; 4 Engineering Drive 4 119260 Singapore, Fax: (+65) 67791936
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Lothschütz C, Szlachetko J, van Bokhoven JA. Heterogenized Gold(I)-Carbene as a Single-Site Catalyst in Continuous Flow. ChemCatChem 2014. [DOI: 10.1002/cctc.201300997] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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13
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Aydin C, Kulkarni A, Chi M, Browning ND, Gates BC. Three-Dimensional Structural Analysis of MgO-Supported Osmium Clusters by Electron Microscopy with Single-Atom Sensitivity. Angew Chem Int Ed Engl 2013; 52:5262-5. [DOI: 10.1002/anie.201300238] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2013] [Indexed: 11/05/2022]
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Aydin C, Kulkarni A, Chi M, Browning ND, Gates BC. Three-Dimensional Structural Analysis of MgO-Supported Osmium Clusters by Electron Microscopy with Single-Atom Sensitivity. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201300238] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Browning ND, Aydin C, Lu J, Kulkarni A, Okamoto NL, Ortalan V, Reed BW, Uzun A, Gates BC. QuantitativeZ-Contrast Imaging of Supported Metal Complexes and Clusters-A Gateway to Understanding Catalysis on the Atomic Scale. ChemCatChem 2013. [DOI: 10.1002/cctc.201200872] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Zhang B, Zhang W, Shao L, Su DS. Optimum Energy-Dispersive X-Ray Spectroscopy Elemental Mapping for Advanced Catalytic Materials. ChemCatChem 2013. [DOI: 10.1002/cctc.201200654] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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