151
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Zhao W, Li Y, Shen W. Tuning the shape and crystal phase of TiO 2 nanoparticles for catalysis. Chem Commun (Camb) 2021; 57:6838-6850. [PMID: 34137748 DOI: 10.1039/d1cc01523k] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Synthesis of TiO2 nanoparticles with tunable shape and crystal phase has attracted considerable attention for the design of highly efficient heterogeneous catalysts. Tailoring the shape of TiO2, in the crystal phases of anatase, rutile, brookite and TiO2(B), allows tuning of the atomic configurations on the dominantly exposed facets for maximizing the active sites and regulating the reaction route towards a specific channel for achieving high selectivity. Moreover, the shape and crystal phase of TiO2 nanoparticles alter their interactions with metal species, which are commonly termed as strong metal-support interactions involving interfacial strain and charge transfer. On the other hand, metal particles, clusters and single atoms interact differently with TiO2, because of the variation of the electronic structure, while the surface of TiO2 determines the interfacial bonding via a geometric effect. The dynamic behavior of the metal-titania interfaces, driven by the chemisorption of the reactive molecules at elevated temperatures, also plays a decisive role in elaborating the structure-reactivity relationship.
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Affiliation(s)
- Wenning Zhao
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China. and University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yong Li
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.
| | - Wenjie Shen
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.
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152
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Chen J, Chen H, Yu T, Li R, Wang Y, Shao Z, Song S. Recent Advances in the Understanding of the Surface Reconstruction of Oxygen Evolution Electrocatalysts and Materials Development. ELECTROCHEM ENERGY R 2021. [DOI: 10.1007/s41918-021-00104-8] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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153
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Spatial intimacy of binary active-sites for selective sequential hydrogenation-condensation of nitriles into secondary imines. Nat Commun 2021; 12:3382. [PMID: 34099687 PMCID: PMC8184996 DOI: 10.1038/s41467-021-23705-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 05/06/2021] [Indexed: 11/18/2022] Open
Abstract
Precisely controlling the spatial intimacy of multiple active sites at sub-nanoscale in heterogeneous catalysts can improve their selectivity and activity. Herein, we realize a highly selective nitrile-to-secondary imine transformation through a cascaded hydrogenation and condensation process by Pt1/CoBOx comprising the binary active sites of the single-dispersed Pt and interfacial Lewis acidic B. Atomic Pt sites with large inter-distances (>nanometers) only activate hydrogen for nitrile hydrogenation, but inhibit condensation. Both adjacent B…B on CoBOx and neighbouring Pt…B pairs with close intimacy of ~0.45 nm can satisfy the spatial prerequisites for condensation. Mechanism investigations demonstrate the energetically favorable pathway occurred on adjacent Lewis acidic B sites through the nitrile adsorption (acid-base interaction), hydrogenation via hydrogen spillover from Pt to B sites and sequential condensation. Strong intermolecular tension and steric hindrance of secondary imines on active sites lead to their effective desorption and thereby a high chemoselectivity of secondary imines. Precisely controlling the spatial intimacy of multiple active sites in heterogeneous catalysts can significantly affect the selectivity and activity. Here the authors show a binary active site of single atom Pt and Lewis acidic B with spatial intimacy enables a highly selective nitrile-to-secondary imine transformation.
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154
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Dai J, Zhang H. Recent Advances in Catalytic Confinement Effect within Micro/Meso-Porous Crystalline Materials. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2005334. [PMID: 33728734 DOI: 10.1002/smll.202005334] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Revised: 10/14/2020] [Indexed: 06/12/2023]
Abstract
Micro/meso-porous crystalline materials with a well-defined pore structure, such as zeolites, carbon nanotubes, and metal-organic frameworks, are of great significance in the development of catalytic systems for scientific and industrial demands. The confinement effect aroused by pore features of porous crystalline materials has triggered great interest in heterogeneous catalysis. Catalytic reactions in confined spaces exhibit unique behaviors compared to those observed on bulk materials. More interestingly, chemical reactivity can be modulated in different ways by the confinement effect, despite the fact that the mechanism on how the confinement effect changes the reaction remains unclear. In this review, a systematic discussion and fundamental understanding is provided concerning the concept of confinement effect, highlighting the impact of confinement effects on diffusion, adsorption/desorption, and catalytic reaction in typical micro/meso-porous crystalline materials, including zeolites, carbon nanotubes, and metal-organic frameworks. Relevant studies demonstrate that confinement effect affords not only shape selectivity against reactants/products, but also modulates surface electron distribution of active species confined within porous environments, thereby successively affecting the catalytic reactivity, selectivity, and stability. This review provides a useful guide for researchers attempting to design excellent porous crystalline catalysts based on the concept of confinement effect in heterogeneous catalysis.
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Affiliation(s)
- Jingjing Dai
- School of Materials Science and Engineering and National Institute for Advanced Materials, Tianjin Key Laboratory for Rare Earth Materials and Applications, Nankai University, Tianjin, 300350, China
| | - Hongbo Zhang
- School of Materials Science and Engineering and National Institute for Advanced Materials, Tianjin Key Laboratory for Rare Earth Materials and Applications, Nankai University, Tianjin, 300350, China
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155
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Bao X, Behrens M, Ertl G, Fu Q, Knop-Gericke A, Lunkenbein T, Muhler M, Schmidt CM, Trunschke A. A Career in Catalysis: Robert Schlögl. ACS Catal 2021. [DOI: 10.1021/acscatal.1c01165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Xinhe Bao
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences (CAS), 457 Zhongshan Road, Dalian 116023, People’s Republic of China
| | - Malte Behrens
- Institute of Inorganic Chemistry, Solid State Chemistry and Catalysis, Kiel University, Max-Eyth-Straße 2, 24118 Kiel, Germany
| | - Gerhard Ertl
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Departments of Physical Chemistry and Inorganic Chemistry, Faradayweg 4-6, 14195 Berlin, Germany
| | - Qiang Fu
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences (CAS), 457 Zhongshan Road, Dalian 116023, People’s Republic of China
| | - Axel Knop-Gericke
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Departments of Physical Chemistry and Inorganic Chemistry, Faradayweg 4-6, 14195 Berlin, Germany
- Max-Planck-Institut für Chemische Energiekonversion, Stiftstraße 34-36, 45470 Mülheim, Germany
| | - Thomas Lunkenbein
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Departments of Physical Chemistry and Inorganic Chemistry, Faradayweg 4-6, 14195 Berlin, Germany
| | - Martin Muhler
- Industrial Chemistry, Ruhr University Bochum, Universitätsstraße 150, 44780 Bochum, Germany
| | - Christoph M. Schmidt
- RWI - Leibniz-Institut für Wirtschaftsforschung, Hohenzollernstraße 1-3, 45128 Essen, Germany
| | - Annette Trunschke
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Departments of Physical Chemistry and Inorganic Chemistry, Faradayweg 4-6, 14195 Berlin, Germany
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156
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Docherty SR, Copéret C. Deciphering Metal–Oxide and Metal–Metal Interplay via Surface Organometallic Chemistry: A Case Study with CO2 Hydrogenation to Methanol. J Am Chem Soc 2021; 143:6767-6780. [DOI: 10.1021/jacs.1c02555] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Scott R. Docherty
- Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir Prelog Weg 1-5, CH-8093 Zurich, Switzerland
| | - Christophe Copéret
- Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir Prelog Weg 1-5, CH-8093 Zurich, Switzerland
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157
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Chemoselective reduction of nitroarenes, N-acetylation of arylamines, and one-pot reductive acetylation of nitroarenes using carbon-supported palladium catalytic system in water. RESEARCH ON CHEMICAL INTERMEDIATES 2021. [DOI: 10.1007/s11164-021-04469-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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158
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Yamada T, Park K, Sajiki H. Development of Solid Catalysts for Selective Reactions and their Application to Continuous-Flow Reactions. J SYN ORG CHEM JPN 2021. [DOI: 10.5059/yukigoseikyokaishi.79.472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Tsuyoshi Yamada
- Laboratory of Organic Chemistry, Gifu Pharmaceutical University
| | | | - Hironao Sajiki
- Laboratory of Organic Chemistry, Gifu Pharmaceutical University
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159
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Wen BY, Chen QQ, Radjenovic PM, Dong JC, Tian ZQ, Li JF. In Situ Surface-Enhanced Raman Spectroscopy Characterization of Electrocatalysis with Different Nanostructures. Annu Rev Phys Chem 2021; 72:331-351. [PMID: 33472380 DOI: 10.1146/annurev-physchem-090519-034645] [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] [Indexed: 11/09/2022]
Abstract
As energy demands increase, electrocatalysis serves as a vital tool in energy conversion. Elucidating electrocatalytic mechanisms using in situ spectroscopic characterization techniques can provide experimental guidance for preparing high-efficiency electrocatalysts. Surface-enhanced Raman spectroscopy (SERS) can provide rich spectral information for ultratrace surface species and is extremely well suited to studying their activity. To improve the material and morphological universalities, researchers have employed different kinds of nanostructures that have played important roles in the development of SERS technologies. Different strategies, such as so-called borrowing enhancement from shell-isolated modes and shell-isolated nanoparticle-enhanced Raman spectroscopy (SHINERS)-satellite structures, have been proposed to obtain highly effective Raman enhancement, and these methods make it possible to apply SERS to various electrocatalytic systems. Here, we discuss the development of SERS technology, focusing on its applications in different electrocatalytic reactions (such as oxygen reduction reactions) and at different nanostructure surfaces, and give a brief outlook on its development.
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Affiliation(s)
- Bao-Ying Wen
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, iChEM, College of Energy, Xiamen University, Xiamen 361005, China; ,
| | - Qing-Qi Chen
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, iChEM, College of Energy, Xiamen University, Xiamen 361005, China; ,
| | - Petar M Radjenovic
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, iChEM, College of Energy, Xiamen University, Xiamen 361005, China; ,
| | - Jin-Chao Dong
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, iChEM, College of Energy, Xiamen University, Xiamen 361005, China; ,
| | - Zhong-Qun Tian
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, iChEM, College of Energy, Xiamen University, Xiamen 361005, China; ,
| | - Jian-Feng Li
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, iChEM, College of Energy, Xiamen University, Xiamen 361005, China; ,
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160
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Linnemann J, Kanokkanchana K, Tschulik K. Design Strategies for Electrocatalysts from an Electrochemist’s Perspective. ACS Catal 2021. [DOI: 10.1021/acscatal.0c04118] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Julia Linnemann
- Faculty of Chemistry and Biochemistry, Analytical Chemistry II, Ruhr University Bochum, Universitätsstr. 150, ZEMOS, 44801 Bochum, Germany
| | - Kannasoot Kanokkanchana
- Faculty of Chemistry and Biochemistry, Analytical Chemistry II, Ruhr University Bochum, Universitätsstr. 150, ZEMOS, 44801 Bochum, Germany
| | - Kristina Tschulik
- Faculty of Chemistry and Biochemistry, Analytical Chemistry II, Ruhr University Bochum, Universitätsstr. 150, ZEMOS, 44801 Bochum, Germany
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161
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Vásquez-Céspedes S, Betori RC, Cismesia MA, Kirsch JK, Yang Q. Heterogeneous Catalysis for Cross-Coupling Reactions: An Underutilized Powerful and Sustainable Tool in the Fine Chemical Industry? Org Process Res Dev 2021. [DOI: 10.1021/acs.oprd.1c00041] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Suhelen Vásquez-Céspedes
- Product & Process Technology R&D, Corteva Agriscience, 9330 Zionsville Road, Indianapolis, Indiana 46268, United States
| | - Rick C. Betori
- Product & Process Technology R&D, Corteva Agriscience, 9330 Zionsville Road, Indianapolis, Indiana 46268, United States
| | - Megan A. Cismesia
- Product & Process Technology R&D, Corteva Agriscience, 9330 Zionsville Road, Indianapolis, Indiana 46268, United States
| | - Janelle K. Kirsch
- Product & Process Technology R&D, Corteva Agriscience, 9330 Zionsville Road, Indianapolis, Indiana 46268, United States
| | - Qiang Yang
- Product & Process Technology R&D, Corteva Agriscience, 9330 Zionsville Road, Indianapolis, Indiana 46268, United States
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162
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Hu J, Yu L, Deng J, Wang Y, Cheng K, Ma C, Zhang Q, Wen W, Yu S, Pan Y, Yang J, Ma H, Qi F, Wang Y, Zheng Y, Chen M, Huang R, Zhang S, Zhao Z, Mao J, Meng X, Ji Q, Hou G, Han X, Bao X, Wang Y, Deng D. Sulfur vacancy-rich MoS2 as a catalyst for the hydrogenation of CO2 to methanol. Nat Catal 2021. [DOI: 10.1038/s41929-021-00584-3] [Citation(s) in RCA: 108] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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163
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Gürbüz MU, Koca M, Elmacı G, Ertürk AS. In situ green synthesis of MnFe
2
O
4
@EP@Ag nanocomposites using
Epilobium parviflorum
green tea extract: An efficient magnetically recyclable catalyst for the reduction of hazardous organic dyes. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6230] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Mustafa Ulvi Gürbüz
- Department of Chemistry, Faculty of Arts and Sciences Yıldız Technical University Istanbul 34220 Turkey
| | - Murat Koca
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy Adiyaman University Adiyaman 02040 Turkey
| | - Gökhan Elmacı
- Department of Chemistry, School of Technical Sciences Adıyaman University Adıyaman 02040 Turkey
| | - Ali Serol Ertürk
- Department of Analytical Chemistry, Faculty of Pharmacy Adıyaman University Adıyaman 02040 Turkey
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164
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Peng Y, Shang C, Liu ZP. The dome of gold nanolized for catalysis. Chem Sci 2021; 12:5664-5671. [PMID: 34168799 PMCID: PMC8179636 DOI: 10.1039/d0sc06502a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Accepted: 03/06/2021] [Indexed: 12/03/2022] Open
Abstract
Gold is noble in bulk but turns out to be a superior catalyst at the nanoscale when supported on oxides, in particular titania. The critical thickness for activity, namely two-layer gold particles on titania, observed two decades ago represents one of the most influential mysteries in the recent history of heterogeneous catalysis. By developing a Bayesian optimization controlled global potential energy surface exploration tool with machine learning potential, here we determine the atomic structures of gold particles within ∼2 nm on a TiO2 surface. We show that the smallest stable Au nanoparticle is Au24 which is pinned on the oxygen-rich TiO2 and exhibits an unprecedented dome architecture made by a single-layer Au sheet but with an apparent two-atomic-layer height. Importantly, this has the highest activity for CO oxidation at room temperature. The physical origin of the high activity is the outstanding electron storage ability of the nano-dome, which activates the lattice oxygen of the oxide. The determined CO oxidation mechanism, the simulated rate and the fitted apparent energy barrier are consistent with known experimental facts, providing key evidence for the presence of both the high-activity Au dome and the low-activity close-packed Au particles in real catalysts. The future direction for the preparation of active and stable Au-based catalysts is thus outlined.
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Affiliation(s)
- Yao Peng
- Collaborative Innovation Center of Chemistry for Energy Material, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Key Laboratory of Computational Physical Science, Department of Chemistry, Fudan University Shanghai 200433 China
| | - Cheng Shang
- Collaborative Innovation Center of Chemistry for Energy Material, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Key Laboratory of Computational Physical Science, Department of Chemistry, Fudan University Shanghai 200433 China
| | - Zhi-Pan Liu
- Collaborative Innovation Center of Chemistry for Energy Material, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Key Laboratory of Computational Physical Science, Department of Chemistry, Fudan University Shanghai 200433 China
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165
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Li R, Xu X, Zhu B, Li XY, Ning Y, Mu R, Du P, Li M, Wang H, Liang J, Chen Y, Gao Y, Yang B, Fu Q, Bao X. In situ identification of the metallic state of Ag nanoclusters in oxidative dispersion. Nat Commun 2021; 12:1406. [PMID: 33658489 PMCID: PMC7930130 DOI: 10.1038/s41467-021-21552-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Accepted: 01/12/2021] [Indexed: 11/21/2022] Open
Abstract
Oxidative dispersion has been widely used in regeneration of sintered metal catalysts and fabrication of single atom catalysts, which is attributed to an oxidation-induced dispersion mechanism. However, the interplay of gas-metal-support interaction in the dispersion processes, especially the gas-metal interaction has not been well illustrated. Here, we show dynamic dispersion of silver nanostructures on silicon nitride surface under reducing/oxidizing conditions and during carbon monoxide oxidation reaction. Utilizing environmental scanning (transmission) electron microscopy and near-ambient pressure photoelectron spectroscopy/photoemission electron microscopy, we unravel a new adsorption-induced dispersion mechanism in such a typical oxidative dispersion process. The strong gas-metal interaction achieved by chemisorption of oxygen on nearly-metallic silver nanoclusters is the internal driving force for dispersion. In situ observations show that the dispersed nearly-metallic silver nanoclusters are oxidized upon cooling in oxygen atmosphere, which could mislead to the understanding of oxidation-induced dispersion. We further understand the oxidative dispersion mechanism from the view of dynamic equilibrium taking temperature and gas pressure into account, which should be applied to many other metals such as gold, copper, palladium, etc. and other reaction conditions. Designing ultra small metal nanoclusters or single atoms with metallic state is a challenge. Here, the authors demonstrate the stabilization of ultra small silver clusters in the nearly-metallic state by oxygen adsorption at high temperature, using in situ spectroscopy and microscope technologies.
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Affiliation(s)
- Rongtan Li
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, The Chinese Academy of Sciences, Dalian, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Xiaoyan Xu
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, The Chinese Academy of Sciences, Dalian, China.,Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, The Chinese Academy of Sciences, Dalian, China
| | - Beien Zhu
- Interdisciplinary Research Center, Shanghai Advanced Research Institute, The Chinese Academy of Sciences, Shanghai, China.,Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, The Chinese Academy of Sciences, Shanghai, China
| | - Xiao-Yan Li
- University of Chinese Academy of Sciences, Beijing, China.,Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, The Chinese Academy of Sciences, Shanghai, China
| | - Yanxiao Ning
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, The Chinese Academy of Sciences, Dalian, China
| | - Rentao Mu
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, The Chinese Academy of Sciences, Dalian, China
| | - Pengfei Du
- University of Chinese Academy of Sciences, Beijing, China.,Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, The Chinese Academy of Sciences, Dalian, China
| | - Mengwei Li
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, The Chinese Academy of Sciences, Dalian, China
| | - Huike Wang
- School of Materials Science and Engineering, National Institute for Advanced Materials, Nankai University, Tianjin, China
| | - Jiajie Liang
- School of Materials Science and Engineering, National Institute for Advanced Materials, Nankai University, Tianjin, China
| | - Yongsheng Chen
- Key Laboratory of Functional Polymer Materials of Ministry of Education, College of Chemistry, Nankai University, Tianjin, China
| | - Yi Gao
- Interdisciplinary Research Center, Shanghai Advanced Research Institute, The Chinese Academy of Sciences, Shanghai, China. .,Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, The Chinese Academy of Sciences, Shanghai, China.
| | - Bing Yang
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, The Chinese Academy of Sciences, Dalian, China. .,Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, The Chinese Academy of Sciences, Dalian, China.
| | - Qiang Fu
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, The Chinese Academy of Sciences, Dalian, China. .,Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, The Chinese Academy of Sciences, Dalian, China.
| | - Xinhe Bao
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, The Chinese Academy of Sciences, Dalian, China. .,Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, The Chinese Academy of Sciences, Dalian, China.
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166
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167
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Applications of reticular diversity in metal–organic frameworks: An ever-evolving state of the art. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2020.213655] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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168
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Silver nanoparticles embedded on in-vitro biomineralized vaterite: A highly efficient catalyst with enhanced catalytic activity towards 4-Nitrophenol reduction. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2021.111433] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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169
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Zhang J, Mason AH, Motta A, Cesar LG, Kratish Y, Lohr TL, Miller JT, Gao Y, Marks TJ. Surface vs Homogeneous Organo-Hafnium Catalyst Ion-Pairing and Ligand Effects on Ethylene Homo- and Copolymerizations. ACS Catal 2021. [DOI: 10.1021/acscatal.0c04678] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Jialong Zhang
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Alexander H. Mason
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Alessandro Motta
- Dipartimento di Scienze Chimiche, Università di Roma “La Sapienza” and INSTM, UdR Roma, piazzale Aldo Moro 5, I-00185 Roma, Italy
| | - Laryssa G. Cesar
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Yosi Kratish
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Tracy L. Lohr
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Jeffrey T. Miller
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Yanshan Gao
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Tobin J. Marks
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
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170
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Chee SW, Lunkenbein T, Schlögl R, Cuenya BR. In situand operandoelectron microscopy in heterogeneous catalysis-insights into multi-scale chemical dynamics. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2021; 33:153001. [PMID: 33825698 DOI: 10.1088/1361-648x/abddfd] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Accepted: 01/20/2021] [Indexed: 06/12/2023]
Abstract
This review features state-of-the-artin situandoperandoelectron microscopy (EM) studies of heterogeneous catalysts in gas and liquid environments during reaction. Heterogeneous catalysts are important materials for the efficient production of chemicals/fuels on an industrial scale and for energy conversion applications. They also play a central role in various emerging technologies that are needed to ensure a sustainable future for our society. Currently, the rational design of catalysts has largely been hampered by our lack of insight into the working structures that exist during reaction and their associated properties. However, elucidating the working state of catalysts is not trivial, because catalysts are metastable functional materials that adapt dynamically to a specific reaction condition. The structural or morphological alterations induced by chemical reactions can also vary locally. A complete description of their morphologies requires that the microscopic studies undertaken span several length scales. EMs, especially transmission electron microscopes, are powerful tools for studying the structure of catalysts at the nanoscale because of their high spatial resolution, relatively high temporal resolution, and complementary capabilities for chemical analysis. Furthermore, recent advances have enabled the direct observation of catalysts under realistic environmental conditions using specialized reaction cells. Here, we will critically discuss the importance of spatially-resolvedoperandomeasurements and the available experimental setups that enable (1) correlated studies where EM observations are complemented by separate measurements of reaction kinetics or spectroscopic analysis of chemical species during reaction or (2) real-time studies where the dynamics of catalysts are followed with EM and the catalytic performance is extracted directly from the reaction cell that is within the EM column or chamber. Examples of current research in this field will be presented. Challenges in the experimental application of these techniques and our perspectives on the field's future directions will also be discussed.
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Affiliation(s)
- See Wee Chee
- Department of Interface Science, Fritz Haber Institute of the Max Planck Society, 14195 Berlin, Germany
| | - Thomas Lunkenbein
- Department of Inorganic Chemistry, Fritz Haber Institute of the Max Planck Society, 14195 Berlin, Germany
| | - Robert Schlögl
- Department of Inorganic Chemistry, Fritz Haber Institute of the Max Planck Society, 14195 Berlin, Germany
- Department of Heterogeneous Reactions, Max Planck Institute for Chemical Energy Conversion, 45413 Mülheim an der Ruhr, Germany
| | - Beatriz Roldan Cuenya
- Department of Interface Science, Fritz Haber Institute of the Max Planck Society, 14195 Berlin, Germany
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171
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Ishikawa A, Tateyama Y. A First-Principles Microkinetics for Homogeneous–Heterogeneous Reactions: Application to Oxidative Coupling of Methane Catalyzed by Magnesium Oxide. ACS Catal 2021. [DOI: 10.1021/acscatal.0c04104] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Atsushi Ishikawa
- PRESTO, Japan Science and Technology Agency (JST), 4-1-8 Honcho, Kawaguchi, Saitama 333-0012, Japan
- Elements Strategy Initiative for Catalysts & Batteries (ESICB), Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Yoshitaka Tateyama
- Elements Strategy Initiative for Catalysts & Batteries (ESICB), Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
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172
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Chen F, Zhang P, Xiao L, Liang J, Zhang B, Zhao H, Kosol R, Ma Q, Chen J, Peng X, Yang G, Tsubaki N. Structure-Performance Correlations over Cu/ZnO Interface for Low-Temperature Methanol Synthesis from Syngas Containing CO 2. ACS APPLIED MATERIALS & INTERFACES 2021; 13:8191-8205. [PMID: 33560820 DOI: 10.1021/acsami.0c18600] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Cu/ZnO catalysts with varied Cu/(Cu + Zn) molar ratios were prepared by a facile solid-state method. The Cu/(Cu + Zn) molar ratio displayed a significant effect on the oxygen vacancy formation of the calcined catalysts, thereby influencing the CuO-ZnO interaction and the reducibility of CuO. The Cu/(Cu + Zn) molar ratio also exhibited a significant effect on Cu0 surface area, oxygen vacancy, the ratio of ZnO(002) plane to ZnO(100) plane, as well as the basicity and acidity of the reduced catalysts, thereby affecting the catalytic performance for low-temperature methanol synthesis from syngas containing CO2. The correlations of methanol space time yield (STY) versus the physicochemical characteristics of Cu/ZnO catalysts were studied. The catalyst with equal amounts of Cu and Zn displayed the best catalytic activity owing to higher Cu0 surface area, more oxygen vacancy and ZnO(002) plane, as well as more moderately basic sites.
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Affiliation(s)
- Fei Chen
- Department of Applied Chemistry, School of Engineering, University of Toyama, Gofuku 3190, Toyama 930-8555, Japan
| | - Peipei Zhang
- Department of Applied Chemistry, School of Engineering, University of Toyama, Gofuku 3190, Toyama 930-8555, Japan
| | - Liwei Xiao
- Department of Applied Chemistry, School of Engineering, University of Toyama, Gofuku 3190, Toyama 930-8555, Japan
| | - Jiaming Liang
- Department of Applied Chemistry, School of Engineering, University of Toyama, Gofuku 3190, Toyama 930-8555, Japan
| | - Baizhang Zhang
- Department of Applied Chemistry, School of Engineering, University of Toyama, Gofuku 3190, Toyama 930-8555, Japan
| | - Heng Zhao
- Department of Applied Chemistry, School of Engineering, University of Toyama, Gofuku 3190, Toyama 930-8555, Japan
| | - Rungtiwa Kosol
- Department of Applied Chemistry, School of Engineering, University of Toyama, Gofuku 3190, Toyama 930-8555, Japan
| | - Qingxiang Ma
- State Key Laboratory of High-Efficiency Utilization of Coal and Green Chemical Engineering, Ningxia University, Yinchuan 750021, P. R. China
| | - Jienan Chen
- Ministry of Forestry Bioethanol Research Center, Central South University of Forestry and Technology, Changsha 410004, P. R. China
| | - Xiaobo Peng
- Department of Applied Chemistry, School of Engineering, University of Toyama, Gofuku 3190, Toyama 930-8555, Japan
| | - Guohui Yang
- Department of Applied Chemistry, School of Engineering, University of Toyama, Gofuku 3190, Toyama 930-8555, Japan
| | - Noritatsu Tsubaki
- Department of Applied Chemistry, School of Engineering, University of Toyama, Gofuku 3190, Toyama 930-8555, Japan
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173
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Reece C, Madix RJ. Moving from Fundamental Knowledge of Kinetics and Mechanisms on Surfaces to Prediction of Catalyst Performance in Reactors. ACS Catal 2021. [DOI: 10.1021/acscatal.0c05173] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Christian Reece
- Rowland Institute at Harvard, Harvard University, Cambridge, Massachusetts 02142, United States
| | - Robert J. Madix
- School of Engineering and Applied Science, Harvard University, Cambridge, Massachusetts 02134, United States
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174
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Miura H, Shishido T. Concerted Catalysis of Pd and Au on Alloy Nanoparticles for Efficient Heterogeneous Molecular Transformations. CHEM LETT 2021. [DOI: 10.1246/cl.200713] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Hiroki Miura
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
| | - Tetsuya Shishido
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
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175
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Zhang C, Cao C, Zhang Y, Liu X, Xu J, Zhu M, Tu W, Han YF. Unraveling the Role of Zinc on Bimetallic Fe 5C 2–ZnO Catalysts for Highly Selective Carbon Dioxide Hydrogenation to High Carbon α-Olefins. ACS Catal 2021. [DOI: 10.1021/acscatal.0c04627] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Chao Zhang
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Chenxi Cao
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Yulong Zhang
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Xianglin Liu
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Jing Xu
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Minghui Zhu
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Weifeng Tu
- Engineering Research Center of Advanced Functional Material Manufacturing of Ministry of Education, Zhengzhou University, Zhengzhou, Henan 450001, China
| | - Yi-Fan Han
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
- Engineering Research Center of Advanced Functional Material Manufacturing of Ministry of Education, Zhengzhou University, Zhengzhou, Henan 450001, China
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176
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Ghoshal S, Pramanik A, Sarkar P. Towards H 2O catalyzed N 2-fixation over TiO 2 doped Ru n clusters ( n = 5, 6): a mechanistic and kinetic approach. Phys Chem Chem Phys 2021; 23:1527-1538. [PMID: 33403379 DOI: 10.1039/d0cp03507f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
H2O driven N2 fixation is known as the best alternative pathway to synthesise NH3 under ambient conditions. The thermodynamic non-spontaneous reaction can be accomplished by a photocatalytic water splitting reaction over a TiO2 supported surface with oxygen vacancies. Previous experiments have also shown N2 activation over a neutral Ru cluster whose catalytic activity was remarkably enhanced by TiO2 doping. In this article, we have investigated the detailed mechanism and kinetics of the H2O catalyzed nitrogen reduction reaction (NRR) over bare and TiO2 doped Ru5 clusters in conjunction with DFT and TST calculations. The lack of photochemical activity of the small model cluster provoked us to explore an alternative route of NH3 formation via H2O catalysis. For this, we have considered H2 as co-reactant. The partial reduction of N2 into NH3 or N2H4 could be achieved by a H2O oxidation reaction, however, catalytic regeneration requires additional H2 which effectively makes the overall reaction catalyzed by H2O. Above all, the present investigation suggests that NH3 is most favorably produced through the distal mechanism. Analysis of the rate constants demonstrates that the doping with TiO2 accelerates the kinetics of NRR by a few orders of magnitude. Furthermore, an increase of the size of the metal cluster would not significantly enhance the overall performance of NRR.
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Affiliation(s)
- Sourav Ghoshal
- Department of Chemistry, Visva-Bharati University, Santiniketan - 731235, India.
| | - Anup Pramanik
- Department of Chemistry, Visva-Bharati University, Santiniketan - 731235, India. and Department of Chemistry, Sidho-Kanho-Birsha University, Purulia - 723104, India
| | - Pranab Sarkar
- Department of Chemistry, Visva-Bharati University, Santiniketan - 731235, India.
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177
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Zhang Y, Ettelaie R, Binks BP, Yang H. Highly Selective Catalysis at the Liquid–Liquid Interface Microregion. ACS Catal 2021. [DOI: 10.1021/acscatal.0c04604] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Yabin Zhang
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China
| | - Rammile Ettelaie
- Food Colloids Group, School of Food Science and Nutrition, University of Leeds, Leeds LS2 9JT, U.K
| | | | - Hengquan Yang
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China
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178
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Han Y, Zhang H, Yu Y, Liu Z. In Situ Characterization of Catalysis and Electrocatalysis Using APXPS. ACS Catal 2021. [DOI: 10.1021/acscatal.0c04251] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yong Han
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
- Center for Transformative Science, ShanghaiTech 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
| | - Yi Yu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
- Center for Transformative Science, ShanghaiTech University, Shanghai 201210, China
| | - Zhi Liu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China
- Center for Transformative Science, ShanghaiTech University, Shanghai 201210, China
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179
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Li X, Paier W, Paier J. Machine Learning in Computational Surface Science and Catalysis: Case Studies on Water and Metal-Oxide Interfaces. Front Chem 2021; 8:601029. [PMID: 33425857 PMCID: PMC7793815 DOI: 10.3389/fchem.2020.601029] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 10/27/2020] [Indexed: 11/13/2022] Open
Abstract
The goal of many computational physicists and chemists is the ability to bridge the gap between atomistic length scales of about a few multiples of an Ångström (Å), i. e., 10−10 m, and meso- or macroscopic length scales by virtue of simulations. The same applies to timescales. Machine learning techniques appear to bring this goal into reach. This work applies the recently published on-the-fly machine-learned force field techniques using a variant of the Gaussian approximation potentials combined with Bayesian regression and molecular dynamics as efficiently implemented in the Vienna ab initio simulation package, VASP. The generation of these force fields follows active-learning schemes. We apply these force fields to simple oxides such as MgO and more complex reducible oxides such as iron oxide, examine their generalizability, and further increase complexity by studying water adsorption on these metal oxide surfaces. We successfully examined surface properties of pristine and reconstructed MgO and Fe3O4 surfaces. However, the accurate description of water–oxide interfaces by machine-learned force fields, especially for iron oxides, remains a field offering plenty of research opportunities.
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Affiliation(s)
- Xiaoke Li
- Institut für Chemie, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Wolfgang Paier
- Fraunhofer Institute for Telecommunications, Heinrich Hertz Institute HHI, Berlin, Germany
| | - Joachim Paier
- Institut für Chemie, Humboldt-Universität zu Berlin, Berlin, Germany
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180
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Heravi MM, Mohammadi P. Layered double hydroxides as heterogeneous catalyst systems in the cross-coupling reactions: an overview. Mol Divers 2021; 26:569-587. [PMID: 33392966 DOI: 10.1007/s11030-020-10170-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 12/04/2020] [Indexed: 11/26/2022]
Abstract
Layered double hydroxides (LDHs) are recognized as two-dimensional (2D) clay materials, which comprise the interlayer anions and host layers with a positive charge (brucite-like M(OH)6 octahedral). They have been used as effective and eco-friendly heterogeneous catalytic systems in cross-coupling reactions. In this review, we try to underscore the applications of (LDHs) as an efficient and green catalyst in some important name reactions, namely Suzuki, Heck, Sonogashira, and Ullmann cross-coupling reactions leading to carbon-carbon bond formations.
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Affiliation(s)
- Majid M Heravi
- Department of Chemistry, School of Science, Alzahra University, Vanak, P.O. Box 1993891176, Tehran, Iran.
| | - Pourya Mohammadi
- Department of Chemistry, School of Science, Alzahra University, Vanak, P.O. Box 1993891176, Tehran, Iran
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181
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Liu R, Tan KT, Gong Y, Chen Y, Li Z, Xie S, He T, Lu Z, Yang H, Jiang D. Covalent organic frameworks: an ideal platform for designing ordered materials and advanced applications. Chem Soc Rev 2021; 50:120-242. [DOI: 10.1039/d0cs00620c] [Citation(s) in RCA: 206] [Impact Index Per Article: 68.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Covalent organic frameworks offer a molecular platform for integrating organic units into periodically ordered yet extended 2D and 3D polymers to create topologically well-defined polygonal lattices and built-in discrete micropores and/or mesopores.
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182
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Laldinpuii ZT, Lalmuanpuia C, Lalhmangaihzuala S, Khiangte V, Pachuau Z, Vanlaldinpuia K. Biomass waste-derived recyclable heterogeneous catalyst for aqueous aldol reaction and depolymerization of PET waste. NEW J CHEM 2021. [DOI: 10.1039/d1nj03225a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Eco-friendly biomass waste-derived recyclable heterogeneous catalyst for aldol reaction in water and for methanolysis of PET waste.
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Affiliation(s)
- Z. T. Laldinpuii
- Department of Chemistry, Mizoram University, Pachhunga University College Campus, Aizawl, Mizoram 796001, India
- Department of Chemistry, Mizoram University, Aizawl, Mizoram 796004, India
| | - Chhakchhuak Lalmuanpuia
- Department of Chemistry, Mizoram University, Pachhunga University College Campus, Aizawl, Mizoram 796001, India
- Department of Chemistry, Mizoram University, Aizawl, Mizoram 796004, India
| | - Samson Lalhmangaihzuala
- Department of Chemistry, Mizoram University, Pachhunga University College Campus, Aizawl, Mizoram 796001, India
- Department of Chemistry, Mizoram University, Aizawl, Mizoram 796004, India
| | - Vanlalngaihawma Khiangte
- Department of Chemistry, Mizoram University, Pachhunga University College Campus, Aizawl, Mizoram 796001, India
- Department of Chemistry, Mizoram University, Aizawl, Mizoram 796004, India
| | - Zodinpuia Pachuau
- Department of Chemistry, Mizoram University, Aizawl, Mizoram 796004, India
| | - Khiangte Vanlaldinpuia
- Department of Chemistry, Mizoram University, Pachhunga University College Campus, Aizawl, Mizoram 796001, India
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183
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Lacerda de Oliveira Campos B, Herrera Delgado K, Wild S, Studt F, Pitter S, Sauer J. Surface reaction kinetics of the methanol synthesis and the water gas shift reaction on Cu/ZnO/Al2O3. REACT CHEM ENG 2021. [DOI: 10.1039/d1re00040c] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Detailed modeling of the methanol synthesis combining theoretical surface kinetics, catalyst structural changes, and a broad experimental validation.
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Affiliation(s)
- Bruno Lacerda de Oliveira Campos
- Institute for Catalysis Research and Technology (IKFT)
- Karlsruhe Institute of Technology (KIT)
- 76344 Eggenstein-Leopoldshafen
- Germany
| | - Karla Herrera Delgado
- Institute for Catalysis Research and Technology (IKFT)
- Karlsruhe Institute of Technology (KIT)
- 76344 Eggenstein-Leopoldshafen
- Germany
| | - Stefan Wild
- Institute for Catalysis Research and Technology (IKFT)
- Karlsruhe Institute of Technology (KIT)
- 76344 Eggenstein-Leopoldshafen
- Germany
| | - Felix Studt
- Institute for Catalysis Research and Technology (IKFT)
- Karlsruhe Institute of Technology (KIT)
- 76344 Eggenstein-Leopoldshafen
- Germany
- Institute for Chemical Technology and Polymer Chemistry (ITCP)
| | - Stephan Pitter
- Institute for Catalysis Research and Technology (IKFT)
- Karlsruhe Institute of Technology (KIT)
- 76344 Eggenstein-Leopoldshafen
- Germany
| | - Jörg Sauer
- Institute for Catalysis Research and Technology (IKFT)
- Karlsruhe Institute of Technology (KIT)
- 76344 Eggenstein-Leopoldshafen
- Germany
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184
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Liang Z, Wang HY, Zheng H, Zhang W, Cao R. Porphyrin-based frameworks for oxygen electrocatalysis and catalytic reduction of carbon dioxide. Chem Soc Rev 2021; 50:2540-2581. [DOI: 10.1039/d0cs01482f] [Citation(s) in RCA: 125] [Impact Index Per Article: 41.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The recent progress made on porphyrin-based frameworks and their applications in energy-related conversion technologies (e.g., ORR, OER and CO2RR) and storage technologies (e.g., Zn–air batteries).
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Affiliation(s)
- Zuozhong Liang
- Key Laboratory of Applied Surface and Colloid Chemistry
- Ministry of Education, School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi’an 710119
- China
| | - Hong-Yan Wang
- Key Laboratory of Applied Surface and Colloid Chemistry
- Ministry of Education, School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi’an 710119
- China
| | - Haoquan Zheng
- Key Laboratory of Applied Surface and Colloid Chemistry
- Ministry of Education, School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi’an 710119
- China
| | - Wei Zhang
- Key Laboratory of Applied Surface and Colloid Chemistry
- Ministry of Education, School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi’an 710119
- China
| | - Rui Cao
- Key Laboratory of Applied Surface and Colloid Chemistry
- Ministry of Education, School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi’an 710119
- China
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185
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Wang Z, Khalid O, Wang W, Wang Y, Weber T, Spriewald Luciano A, Zhan W, Smarsly BM, Over H. Comparison study of the effect of CeO 2-based carrier materials on the total oxidation of CO, methane, and propane over RuO 2. Catal Sci Technol 2021. [DOI: 10.1039/d1cy01277k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
While activity and kinetics of catalytic CO and propane combustion over RuO2 depends sensitively on the carrier material, methane combustion on RuO2 is hardly affected by the carrier.
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Affiliation(s)
- Zheng Wang
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, PR China
- Physikalisch-Chemisches Institut, Justus Liebig University, Heinrich-Buff-Ring 17, D-35392 Giessen, Germany
| | - Omeir Khalid
- Physikalisch-Chemisches Institut, Justus Liebig University, Heinrich-Buff-Ring 17, D-35392 Giessen, Germany
| | - Wei Wang
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, PR China
- Physikalisch-Chemisches Institut, Justus Liebig University, Heinrich-Buff-Ring 17, D-35392 Giessen, Germany
| | - Yu Wang
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, PR China
| | - Tim Weber
- Physikalisch-Chemisches Institut, Justus Liebig University, Heinrich-Buff-Ring 17, D-35392 Giessen, Germany
| | | | - Wangcheng Zhan
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, PR China
| | - Bernd M. Smarsly
- Physikalisch-Chemisches Institut, Justus Liebig University, Heinrich-Buff-Ring 17, D-35392 Giessen, Germany
| | - Herbert Over
- Physikalisch-Chemisches Institut, Justus Liebig University, Heinrich-Buff-Ring 17, D-35392 Giessen, Germany
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186
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Al-Sharabi M, Markl D, Vivacqua V, Bawuah P, MacLean N, Bentley M, York AP, Marigo M, Huang K, Zeitler JA. Terahertz pulsed imaging as a new method for investigating the liquid transport kinetics of α-alumina powder compacts. Chem Eng Res Des 2021. [DOI: 10.1016/j.cherd.2020.11.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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187
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Arkhipova DM, Ermolaev VV, Miluykov VA, Gubaidullin AT, Islamov DR, Kataeva ON, Ananikov VP. Sterically Hindered Phosphonium Salts: Structure, Properties and Palladium Nanoparticle Stabilization. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E2457. [PMID: 33316907 PMCID: PMC7763823 DOI: 10.3390/nano10122457] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 12/01/2020] [Accepted: 12/04/2020] [Indexed: 01/06/2023]
Abstract
A new family of sterically hindered alkyl(tri-tert-butyl) phosphonium salts (n-CnH2n+1 with n = 2, 4, 6, 8, 10, 12, 14, 16, 18, 20) was synthesized and evaluated as stabilizers for the formation of palladium nanoparticles (PdNPs), and the prepared PdNPs, stabilized by a series of phosphonium salts, were applied as catalysts of the Suzuki cross-coupling reaction. All investigated phosphonium salts were found to be excellent stabilizers of metal nanoparticles of small catalytically active size with a narrow size distribution. In addition, palladium nanoparticles exhibited exceptional stability: the presence of phosphonium salts prevented agglomeration and precipitation during the catalytic reaction.
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Affiliation(s)
- Daria M Arkhipova
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect, 47, 119991 Moscow, Russia
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, Arbusov Street 8, 420088 Kazan, Russia
| | - Vadim V Ermolaev
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, Arbusov Street 8, 420088 Kazan, Russia
| | - Vasily A Miluykov
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, Arbusov Street 8, 420088 Kazan, Russia
| | - Aidar T Gubaidullin
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, Arbusov Street 8, 420088 Kazan, Russia
| | - Daut R Islamov
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, Arbusov Street 8, 420088 Kazan, Russia
| | - Olga N Kataeva
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, Arbusov Street 8, 420088 Kazan, Russia
| | - Valentine P Ananikov
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect, 47, 119991 Moscow, Russia
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188
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Qian K, You R, Guan Y, Wen W, Tian Y, Pan Y, Huang W. Single-Site Catalysis of Li-MgO Catalysts for Oxidative Coupling of Methane Reaction. ACS Catal 2020. [DOI: 10.1021/acscatal.0c03896] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Kun Qian
- Hefei National Laboratory for Physical Sciences at Microscale, Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, CAS Key Laboratory of Materials for Energy Conversion and Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China
| | - Rui You
- Hefei National Laboratory for Physical Sciences at Microscale, Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, CAS Key Laboratory of Materials for Energy Conversion and Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China
| | - Yong Guan
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, China
| | - Wu Wen
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, China
| | - Yangchao Tian
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, China
| | - Yang Pan
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, China
| | - Weixin Huang
- Hefei National Laboratory for Physical Sciences at Microscale, Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, CAS Key Laboratory of Materials for Energy Conversion and Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China
- Dalian National Laboratory for Clean Energy, Dalian 116023, China
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189
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Gordeychuk DI, Sorokoumov VN, Mikhaylov VN, Panov MS, Khairullina EM, Melnik MV, Kochemirovsky VA, Balova IA. Copper-based nanocatalysts produced via laser-induced ex situ generation for homo- and cross-coupling reactions. Chem Eng Sci 2020. [DOI: 10.1016/j.ces.2020.115940] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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190
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Kuklja MM, Tsyshevsky R, Zverev AS, Mitrofanov A, Ilyakova N, Nurmukhametov DR, Rashkeev SN. Achieving tunable chemical reactivity through photo-initiation of energetic materials at metal oxide surfaces. Phys Chem Chem Phys 2020; 22:25284-25296. [PMID: 33136098 DOI: 10.1039/d0cp04069j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Known applications of high energy density materials are impressively vast. Despite this, we argue that energetic materials are still underutilized for common energy purposes due to our inability to control explosive chemical reactions releasing energy from these materials. The situation appears paradoxical as energetic materials (EM) possess massive amounts of energy and, hence, should be most appropriate for applications in many energy-intensive processes. Here, we discover how chemical decomposition reactions can be stimulated with laser excitation and therefore, highly controlled by selectively designing energetic material - metal oxide interfaces with an example of pentaerythritol tetranitrate (PETN)-MgO and trinitrotoluene (TNT)-MgO composite samples. Density functional theory and embedded cluster method calculations were combined with measurements of the optical absorption spectra and laser initiation experiments. We found that the first (1064 nm, 1.17 eV), second (532 nm, 2.33 eV), and third (355 nm, 3.49 eV) laser harmonics, to all of which pure energetic materials are transparent, can be effectively used to trigger explosive reactions in the PETN-MgO samples. We propose a consistent electronic mechanism that explains how specific sub-band optical transitions initiate decomposition chemistry. Also, this selectivity reveals a fundamental difference between materials chemistry at interfaces as we show on examples of PETN and TNT energetic materials.
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Affiliation(s)
- Maija M Kuklja
- Department of Materials Science and Engineering, University of Maryland, College Park, MD 20742, USA.
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191
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Boniface M, Plodinec M, Schlögl R, Lunkenbein T. Quo Vadis Micro-Electro-Mechanical Systems for the Study of Heterogeneous Catalysts Inside the Electron Microscope? Top Catal 2020. [DOI: 10.1007/s11244-020-01398-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
AbstractDuring the last decade, modern micro-electro-mechanical systems (MEMS) technology has been used to create cells that can act as catalytic nanoreactors and fit into the sample holders of transmission electron microscopes. These nanoreactors can maintain atmospheric or higher pressures inside the cells as they seal gases or liquids from the vacuum of the TEM column and can reach temperatures exceeding 1000 °C. This has led to a paradigm shift in electron microscopy, which facilitates the local characterization of structural and morphological changes of solid catalysts under working conditions. In this review, we outline the development of state-of-the-art nanoreactor setups that are commercially available and are currently applied to study catalytic reactions in situ or operando in gaseous or liquid environments. We also discuss challenges that are associated with the use of environmental cells. In catalysis studies, one of the major challenge is the interpretation of the results while considering the discrepancies in kinetics between MEMS based gas cells and fixed bed reactors, the interactions of the electron beam with the sample, as well as support effects. Finally, we critically analyze the general role of MEMS based nanoreactors in electron microscopy and catalysis communities and present possible future directions.
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192
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Nanostructured Anodic Copper Oxides as Catalysts in Electrochemical and Photoelectrochemical Reactions. Catalysts 2020. [DOI: 10.3390/catal10111338] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Recently, nanostructured copper oxides formed via anodizing have been intensively researched due to their potential catalytic applications in emerging issues. The anodic Cu2O and CuO nanowires or nanoneedles are attractive photo- and electrocatalysts since they show wide array of desired electronic and morphological features, such as highly-developed surface area. In CO2 electrochemical reduction reaction (CO2RR) copper and copper-based nanostructures indicate unique adsorption properties to crucial reaction intermediates. Furthermore, anodized copper-based materials enable formation of C2+ hydrocarbons and alcohols with enhanced selectivity. Moreover, anodic copper oxides provide outstanding turnover frequencies in electrochemical methanol oxidation at lowered overpotentials. Therefore, they can be considered as precious metals electrodes substituents in direct methanol fuel cells. Additionally, due to the presence of Cu(III)/Cu(II) redox couple, these materials find application as electrodes for non-enzymatic glucose sensors. In photoelectrochemistry, Cu2O-CuO heterostructures of anodic copper oxides with highly-developed surface area are attractive for water splitting. All the above-mentioned aspects of anodic copper oxides derived catalysts with state-of-the-art background have been reviewed within this paper.
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193
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Seifert M, Marschall MS, Gille T, Jonscher C, Royla P, Busse O, Reschetilowski W, Weigand JJ. Ethanol to Aromatics on Modified H-ZSM-5 Part II: An Unexpected Low Coking. Chem Asian J 2020; 15:3878-3885. [PMID: 33006826 PMCID: PMC7756217 DOI: 10.1002/asia.202000961] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 09/10/2020] [Indexed: 12/04/2022]
Abstract
In this study a commercial H‐ZSM‐5 zeolite (Si/Al=11) was post‐synthetically modified by a combined dealumination procedure to adjust its catalytic properties for the selective formation of aromatics from ethanol. The solid‐state properties of original and modified zeolites are determined by structural, textural and acidity analysis. The formation of aromatics and durability of the zeolites were investigated depending on space velocity or contact time in the catalyst bed. In particular, the formation rate and desorption of aromatics from solid‐state surface as well as their tendency to form coke precursors by consecutive build‐up reactions determine the formation of coke. Therefore, the rate of build‐up and finished aromatization by hydride transfer (pre‐determined by the kind, location and geometric arrangement of surface acid sites) and the statistical number of reaction events until final desorption at the specific contact time have to be harmonized to increase aromatics yield and to decrease catalyst decay by coke simultaneously.
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Affiliation(s)
- Markus Seifert
- TU Dresden, Faculty of Chemistry and Food Chemistry, Chair of Inorganic Molecular Chemistry, Mommsenstraße 4, 01069, Dresden, Germany
| | - Mathias S Marschall
- TU Dresden, Faculty of Chemistry and Food Chemistry, Chair of Inorganic Molecular Chemistry, Mommsenstraße 4, 01069, Dresden, Germany
| | - Torsten Gille
- TU Dresden, Faculty of Chemistry and Food Chemistry, Chair of Inorganic Molecular Chemistry, Mommsenstraße 4, 01069, Dresden, Germany
| | - Clemens Jonscher
- TU Dresden, Faculty of Chemistry and Food Chemistry, Chair of Inorganic Molecular Chemistry, Mommsenstraße 4, 01069, Dresden, Germany
| | - Philipp Royla
- TU Dresden, Faculty of Chemistry and Food Chemistry, Chair of Inorganic Molecular Chemistry, Mommsenstraße 4, 01069, Dresden, Germany
| | - Oliver Busse
- TU Dresden, Faculty of Chemistry and Food Chemistry, Chair of Inorganic Molecular Chemistry, Mommsenstraße 4, 01069, Dresden, Germany
| | - Wladimir Reschetilowski
- TU Dresden, Faculty of Chemistry and Food Chemistry, Mommsenstraße 4, 01069, Dresden, Germany
| | - Jan J Weigand
- TU Dresden, Faculty of Chemistry and Food Chemistry, Chair of Inorganic Molecular Chemistry, Mommsenstraße 4, 01069, Dresden, Germany
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194
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Sun Y, Hess F, Djerdj I, Wang Z, Weber T, Guo Y, Smarsly BM, Over H. sReactivation of CeO
2
‐based Catalysts in the HCl Oxidation Reaction:
In situ
Quantification of the Degree of Chlorination and Kinetic Modeling. ChemCatChem 2020. [DOI: 10.1002/cctc.202000907] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Yu Sun
- Key Laboratory for Advanced Materials Research Institute of Industrial Catalysis East China University of Science and Technology Shanghai 200237 P.R. China
- Physikalisch-Chemisches Institut Justus Liebig Universität Heinrich-Buff-Ring 17 35392 GießenGiessen Germany
| | - Franziska Hess
- Institute of Physical Chemistry RWTH Aachen Landoltweg 2 52074 Aachen Germany
- Institut für Chemie Technische Universitaet Berlin Strasse des 17. Juni 124 10623 Berlin Germany
| | - Igor Djerdj
- Department of Chemistry J. J. Strossmayer University of Osijek Ulica cara Hadrijana 8/a HR-31000 Osijek Croatia
| | - Zheng Wang
- Key Laboratory for Advanced Materials Research Institute of Industrial Catalysis East China University of Science and Technology Shanghai 200237 P.R. China
- Physikalisch-Chemisches Institut Justus Liebig Universität Heinrich-Buff-Ring 17 35392 GießenGiessen Germany
| | - Tim Weber
- Physikalisch-Chemisches Institut Justus Liebig Universität Heinrich-Buff-Ring 17 35392 GießenGiessen Germany
- Zentrum für Materialforschung Justus Liebig Universität Heinrich-Buff-Ring 16 35392 Giessen Germany
| | - Yanglong Guo
- Key Laboratory for Advanced Materials Research Institute of Industrial Catalysis East China University of Science and Technology Shanghai 200237 P.R. China
| | - Bernd M. Smarsly
- Physikalisch-Chemisches Institut Justus Liebig Universität Heinrich-Buff-Ring 17 35392 GießenGiessen Germany
- Zentrum für Materialforschung Justus Liebig Universität Heinrich-Buff-Ring 16 35392 Giessen Germany
| | - Herbert Over
- Physikalisch-Chemisches Institut Justus Liebig Universität Heinrich-Buff-Ring 17 35392 GießenGiessen Germany
- Zentrum für Materialforschung Justus Liebig Universität Heinrich-Buff-Ring 16 35392 Giessen Germany
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195
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Kaur P, Chopra HK. Exploring the Potential of Supported Ionic Liquids as Building Block Systems in Catalysis. ChemistrySelect 2020. [DOI: 10.1002/slct.202002826] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Pawanpreet Kaur
- Department of Chemistry Sant Longowal Institute of Engineering and Technology Longowal 148106, Distt. Sangrur (Punjab) India
| | - Harish K. Chopra
- Department of Chemistry Sant Longowal Institute of Engineering and Technology Longowal 148106, Distt. Sangrur (Punjab) India
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196
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Abstract
AbstractThe “Seven Pillars” of oxidation catalysis proposed by Robert K. Grasselli represent an early example of phenomenological descriptors in the field of heterogeneous catalysis. Major advances in the theoretical description of catalytic reactions have been achieved in recent years and new catalysts are predicted today by using computational methods. To tackle the immense complexity of high-performance systems in reactions where selectivity is a major issue, analysis of scientific data by artificial intelligence and data science provides new opportunities for achieving improved understanding. Modern data analytics require data of highest quality and sufficient diversity. Existing data, however, frequently do not comply with these constraints. Therefore, new concepts of data generation and management are needed. Herein we present a basic approach in defining best practice procedures of measuring consistent data sets in heterogeneous catalysis using “handbooks”. Selective oxidation of short-chain alkanes over mixed metal oxide catalysts was selected as an example.
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197
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TVSPV SG, Gangu KK, Maddila S, Jonnalagadda SB. Excellent catalytic activity of ethylenediamine stabilised oxalate ligated aluminium coordination complex for synthesis of novel benzoquinolines. Polyhedron 2020. [DOI: 10.1016/j.poly.2020.114734] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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198
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von Boehn B, Imbihl R. Dynamics of Ultrathin Vanadium Oxide Layers on Rh(111) and Rh(110) Surfaces During Catalytic Reactions. Front Chem 2020; 8:707. [PMID: 32974277 PMCID: PMC7472780 DOI: 10.3389/fchem.2020.00707] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 07/09/2020] [Indexed: 11/13/2022] Open
Abstract
Over the past 35 years rate oscillations and chemical wave patterns have been extensively studied on metal surfaces, while little is known about the dynamics of catalytic oxide surfaces under reaction conditions. Here we report on the behavior of ultrathin V oxide layers epitaxially grown on Rh(111) and Rh(110) single crystal surfaces during catalytic methanol oxidation. We use photoemission electron microscopy and low-energy electron microscopy to study the surface dynamics in the 10-6 to 10-2 mbar range. On VO x /Rh(111) we find a ripening mechanism in which VO x islands of macroscopic size move toward each other and coalesce under reaction conditions. A polymerization/depolymerization mechanism of VO x that is sensitive to gradients in the oxygen coverage explains this behavior. The existence of a substructure in VO x islands gives rise to an instability, in which a VO x island shrinks and expands around a critical radius in an oscillatory manner. At 10-2 mbar the VO x islands are no longer stable but they disintegrate, leading to turbulent redistribution dynamics of VO x . On the more open and thermodynamically less stable Rh(110) surface the behavior of VO x is much more complex than on Rh(111), as V can also populate subsurface sites. At low V coverage, one finds traveling interface pulses in the bistable range. A state-dependent anisotropy of the surface is presumably responsible for intriguing chemical wave patterns: wave fragments traveling along certain crystallographic directions, and coexisting different front geometries in the range of dynamic bistability. Annealing to 1000 K causes the formation of macroscopic VO x islands. Under more reducing conditions dendritic growth of a VO x overlayer is observed.
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Affiliation(s)
- Bernhard von Boehn
- Institut für Physikalische Chemie und Elektrochemie, Leibniz Universität Hannover, Hanover, Germany
| | - Ronald Imbihl
- Institut für Physikalische Chemie und Elektrochemie, Leibniz Universität Hannover, Hanover, Germany
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199
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Recent Advancement of Ullmann Condensation Coupling Reaction in the Formation of Aryl-Oxygen (C-O) Bonding by Copper-Mediated Catalyst. Catalysts 2020. [DOI: 10.3390/catal10101103] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Transition metal-catalyzed chemical transformation of organic electrophiles and organometallic reagents belong to the most important cross coupling reaction in organic synthesis. The biaryl ether division is not only popular in natural products and synthetic pharmaceuticals but also widely found in many pesticides, polymers, and ligands. Copper catalyst has received great attention owing to the low toxicity and low cost. However, traditional Ullmann-type couplings suffer from limited substrate scopes and harsh reaction conditions. The introduction of homogeneous copper catalyst with presence of bidentate ligands over the past two decades has totally changed this situation as these ligands enable the reaction promoted in mild condition. The reaction scope has also been greatly expanded, rendering this copper-based cross-coupling attractive for both academia and industry. In this review, we will highlight the latest progress in the development of useful homogeneous copper catalyst with presence of ligand and heterogeneous copper catalyst in Ullmann type C-O cross-coupling reaction. Additionally, the application of Ullmann type C-O cross coupling reaction will be discussed.
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200
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Nahalka I, Zwaschka G, Campen RK, Marchioro A, Roke S. Mapping Electrochemical Heterogeneity at Gold Surfaces: A Second Harmonic Imaging Study. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2020; 124:20021-20034. [PMID: 35693431 PMCID: PMC9182208 DOI: 10.1021/acs.jpcc.0c02740] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Revised: 07/31/2020] [Indexed: 05/25/2023]
Abstract
Designing efficient catalysts requires correlating surface structure and local chemical composition with reactivity on length scales from nanometers to tens of microns. While much work has been done on this structure/function correlation on single crystals, comparatively little has been done for catalysts of relevance in applications. Such materials are typically highly heterogeneous and thus require methods that allow mapping of the structure/function relationship during electrochemical conversion. Here, we use optical second harmonic imaging combined with cyclic voltammetry to map the surface of gold nanocrystalline and polycrystalline electrodes during electrooxidation and to quantify the spatial extent of surface reconstruction during potential cycling. The wide-field configuration of our microscope allows for real-time imaging of an area ∼100 μm in diameter with submicron resolution. By analyzing the voltage dependence of each pixel, we uncover the heterogeneity of the second harmonic signal and quantify the fraction of domains where it follows a positive quadratic dependence with increasing bias. There, the second harmonic intensity is mainly ascribed to electronic polarization contributions at the metal/electrolyte interface. Additionally, we locate areas where the second harmonic signal follows a negative quadratic dependence with increasing bias, which also show the largest changes during successive cyclic voltammetry sweeps as determined by an additional correlation coefficient analysis. We assign these areas to domains of higher roughness that are prone to potential-induced surface restructuring and where anion adsorption occurs at lower potentials than expected based on the cyclic voltammetry.
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Affiliation(s)
- Igor Nahalka
- Laboratory
for fundamental BioPhotonics (LBP), Institute of Bio-engineering (IBI),
and Institute of Materials Science (IMX), School of Engineering (STI),
and Lausanne Centre for Ultrafast Science (LACUS), École Polytechnique Fédérale de Lausanne (EPFL), CH-1015, Lausanne, Switzerland
| | - Gregor Zwaschka
- Fritz
Haber Institute of the Max Planck Society, Faradayweg 4-6, 14195 Berlin, Germany
| | - R. Kramer Campen
- Fritz
Haber Institute of the Max Planck Society, Faradayweg 4-6, 14195 Berlin, Germany
- Faculty
of Physics, University of Duisburg-Essen, Lotharstraße 1, 47057 Duisburg, Germany
| | - Arianna Marchioro
- Laboratory
for fundamental BioPhotonics (LBP), Institute of Bio-engineering (IBI),
and Institute of Materials Science (IMX), School of Engineering (STI),
and Lausanne Centre for Ultrafast Science (LACUS), École Polytechnique Fédérale de Lausanne (EPFL), CH-1015, Lausanne, Switzerland
| | - Sylvie Roke
- Laboratory
for fundamental BioPhotonics (LBP), Institute of Bio-engineering (IBI),
and Institute of Materials Science (IMX), School of Engineering (STI),
and Lausanne Centre for Ultrafast Science (LACUS), École Polytechnique Fédérale de Lausanne (EPFL), CH-1015, Lausanne, Switzerland
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