1
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Li S, Yang L, Christudasjustus J, Overman NR, Wirth BD, Sushko ML, Simonnin P, Schreiber DK, Gao F, Wang C. Selective atomic sieving across metal/oxide interface for super-oxidation resistance. Nat Commun 2024; 15:6149. [PMID: 39034317 PMCID: PMC11271475 DOI: 10.1038/s41467-024-50576-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Accepted: 07/12/2024] [Indexed: 07/23/2024] Open
Abstract
Surface passivation, a desirable natural consequence during initial oxidation of alloys, is the foundation for functioning of corrosion and oxidation resistant alloys ranging from industrial stainless steel to kitchen utensils. This initial oxidation has been long perceived to vary with crystal facet, however, the underlying mechanism remains elusive. Here, using in situ environmental transmission electron microscopy, we gain atomic details on crystal facet dependent initial oxidation behavior in a model Ni-5Cr alloy. We find the (001) surface shows higher initial oxidation resistance as compared to the (111) surface. We reveal the crystal facet dependent oxidation is related to an interfacial atomic sieving effect, wherein the oxide/metal interface selectively promotes diffusion of certain atomic species. Density functional theory calculations rationalize the oxygen diffusion across Ni(111)/NiO(111) interface, as contrasted with Ni(001)/NiO(111), is enhanced. We unveil that crystal facet with initial fast oxidation rate could conversely switch to a slow steady state oxidation.
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Affiliation(s)
- Shuang Li
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA, USA
| | - Li Yang
- Department of Nuclear Engineering, University of Tennessee, Knoxville, TN, USA
| | - Jijo Christudasjustus
- Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, WA, USA
| | - Nicole R Overman
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, WA, USA
| | - Brian D Wirth
- Department of Nuclear Engineering, University of Tennessee, Knoxville, TN, USA
| | - Maria L Sushko
- Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, WA, USA
| | - Pauline Simonnin
- Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, WA, USA
| | - Daniel K Schreiber
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, WA, USA.
| | - Fei Gao
- Department of Nuclear Engineering and Radiological Sciences, University of Michigan, Ann Arbor, MI, USA.
| | - Chongmin Wang
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA, USA.
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2
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Li X, Mitchell S, Fang Y, Li J, Perez-Ramirez J, Lu J. Advances in heterogeneous single-cluster catalysis. Nat Rev Chem 2023; 7:754-767. [PMID: 37814032 DOI: 10.1038/s41570-023-00540-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/29/2023] [Indexed: 10/11/2023]
Abstract
Heterogeneous single-cluster catalysts (SCCs) comprising atomically precise and isolated metal clusters stabilized on appropriately chosen supports offer exciting prospects for enabling novel chemical reactions owing to their broad structural diversity with unparalled opportunities for engineering their properties. Although the pioneering work revealed intriguing performance trends of size-selected metal clusters deposited on supports, synthetic and analytical challenges hindered a thorough understanding of surface chemistry under realistic conditions. This Review underscores the importance of considering the cluster environment in SCCs, encompassing the development of robust metal-support interactions, precise control over the ligand sphere, the influence of reaction media and dynamic behaviour, to uncover new reactivities. Through examples, we illustrate the criticality of tailoring the entire catalytic ensemble in SCCs to achieve stable and selective performance with practically relevant metal coverages. This expansion in application scope transcends from model reactions to complex and technically relevant reactions. Furthermore, we provide a perspective on the opportunities and future directions for SCC design within this rapidly evolving field.
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Affiliation(s)
- Xinzhe Li
- Department of Environmental Science and Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi, China
- Department of Chemistry, National University of Singapore, Singapore, Singapore
| | - Sharon Mitchell
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich, Switzerland
| | - Yiyun Fang
- Department of Chemistry, National University of Singapore, Singapore, Singapore
| | - Jun Li
- Department of Chemistry and Engineering Research Center of Advanced Rare-Earth Materials of Ministry of Education, Tsinghua University, Beijing, China.
- Department of Chemistry and Guangdong Provincial Key Laboratory of Catalytic Chemistry, Southern University of Science and Technology, Shenzhen, China.
| | - Javier Perez-Ramirez
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich, Switzerland.
| | - Jiong Lu
- Department of Chemistry, National University of Singapore, Singapore, Singapore.
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3
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Pu Y, He B, Niu Y, Liu X, Zhang B. Chemical Electron Microscopy (CEM) for Heterogeneous Catalysis at Nano: Recent Progress and Challenges. RESEARCH (WASHINGTON, D.C.) 2023; 6:0043. [PMID: 36930759 PMCID: PMC10013794 DOI: 10.34133/research.0043] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Accepted: 12/18/2022] [Indexed: 01/12/2023]
Abstract
Chemical electron microscopy (CEM), a toolbox that comprises imaging and spectroscopy techniques, provides dynamic morphological, structural, chemical, and electronic information about an object in chemical environment under conditions of observable performance. CEM has experienced a revolutionary improvement in the past years and is becoming an effective characterization method for revealing the mechanism of chemical reactions, such as catalysis. Here, we mainly address the concept of CEM for heterogeneous catalysis in the gas phase and what CEM could uniquely contribute to catalysis, and illustrate what we can know better with CEM and the challenges and future development of CEM.
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Affiliation(s)
- Yinghui Pu
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China.,School of Materials Science and Engineering, University of Science and Technology of China, 72 Wenhua Road, Shenyang 110016, China
| | - Bowen He
- School of Chemistry and Chemical Engineering, In-situ Center for Physical Sciences, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yiming Niu
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China.,School of Materials Science and Engineering, University of Science and Technology of China, 72 Wenhua Road, Shenyang 110016, China
| | - Xi Liu
- School of Chemistry and Chemical Engineering, In-situ Center for Physical Sciences, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Bingsen Zhang
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China.,School of Materials Science and Engineering, University of Science and Technology of China, 72 Wenhua Road, Shenyang 110016, China
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4
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Zhang W, Guo J, Ma H, Wen J, He C. Anchoring of transition metals to CN as efficient single-atom catalysts for propane dehydrogenation. Chem Phys Lett 2022. [DOI: 10.1016/j.cplett.2022.140154] [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]
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5
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Liang X, Fu N, Yao S, Li Z, Li Y. The Progress and Outlook of Metal Single-Atom-Site Catalysis. J Am Chem Soc 2022; 144:18155-18174. [PMID: 36175359 DOI: 10.1021/jacs.1c12642] [Citation(s) in RCA: 67] [Impact Index Per Article: 33.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Single-atom-site catalysts (SASCs) featuring maximized atom utilization and isolated active sites have progressed tremendously in recent years as a highly prosperous branch of catalysis research. Varieties of SASCs have been developed that show excellent performance in many catalytic applications. The major goal of SASC research is to establish feasible synthetic strategies for the preparation of high-performance catalysts, to achieve an in-depth understanding of the active-site structures and catalytic mechanisms, and to develop practical catalysts with industrial value. This Perspective describes the up-to-date development of SASCs and related catalysts, such as dual-atom-site catalysts (DASCs) and nano-single-atom-site catalysts (NSASCs), analyzes the current challenges encountered by these catalysts for industrial applications, and proposes their possible future development path.
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Affiliation(s)
- Xiao Liang
- Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China
| | - Ninghua Fu
- Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China
| | - Shuangchao Yao
- Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China
| | - Zhi Li
- Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China.,College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China
| | - Yadong Li
- Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China.,College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China.,Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, P. R. China
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6
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Kim J, Choi S, Cho J, Kim SY, Jang HW. Toward Multicomponent Single-Atom Catalysis for Efficient Electrochemical Energy Conversion. ACS MATERIALS AU 2021; 2:1-20. [PMID: 36855696 PMCID: PMC9888646 DOI: 10.1021/acsmaterialsau.1c00041] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Single-atom catalysts (SACs) have recently emerged as the ultimate solution for overcoming the limitations of traditional catalysts by bridging the gap between homogeneous and heterogeneous catalysts. Atomically dispersed identical active sites enable a maximal atom utilization efficiency, high activity, and selectivity toward the wide range of electrochemical reactions, superior structural robustness, and stability over nanoparticles due to strong atomic covalent bonding with supports. Mononuclear active sites of SACs can be further adjusted by engineering with multicomponent elements, such as introducing dual-metal active sites or additional neighbor atoms, and SACs can be regarded as multicomponent SACs if the surroundings of the active sites or the active sites themselves consist of multiple atomic elements. Multicomponent engineering offers an increased combinational diversity in SACs and unprecedented routes to exceed the theoretical catalytic performance limitations imposed by single-component scaling relationships for adsorption and transition state energies of reactions. The precisely designed structures of multicomponent SACs are expected to be responsible for the synergistic optimization of the overall electrocatalytic performance by beneficially modulating the electronic structure, the nature of orbital filling, the binding energy of reaction intermediates, the reaction pathways, and the local structural transformations. This Review demonstrates these synergistic effects of multicomponent SACs by highlighting representative breakthroughs on electrochemical conversion reactions, which might mitigate the global energy crisis of high dependency on fossil fuels. General synthesis methods and characterization techniques for SACs are also introduced. Then, the perspective on challenges and future directions in the research of SACs is briefly summarized. We believe that careful tailoring of multicomponent active sites is one of the most promising approaches to unleash the full potential of SACs and reach the superior catalytic activity, selectivity, and stability at the same time, which makes SACs promising candidates for electrocatalysts in various energy conversion reactions.
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Affiliation(s)
- Jaehyun Kim
- Department
of Materials Science and Engineering, Research Institute of Advanced
Materials, Seoul National University, Seoul 08826, Republic of Korea
| | - Sungkyun Choi
- Department
of Materials Science and Engineering, Research Institute of Advanced
Materials, Seoul National University, Seoul 08826, Republic of Korea
| | - Jinhyuk Cho
- Department
of Materials Science and Engineering, Korea
University, Seoul 02841, Republic of Korea
| | - Soo Young Kim
- Department
of Materials Science and Engineering, Korea
University, Seoul 02841, Republic of Korea,
| | - Ho Won Jang
- Department
of Materials Science and Engineering, Research Institute of Advanced
Materials, Seoul National University, Seoul 08826, Republic of Korea,Advanced
Institute of Convergence Technology, Seoul
National University, Suwon 16229, Republic of Korea,
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7
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Affiliation(s)
- Xiang Tan
- State Key Laboratory Breeding Base of Green Pesticide & Agricultural Bioengineering Key Laboratory of Green Pesticide & Agricultural Bioengineering Ministry of Education State-Local Joint Laboratory for Comprehensive Utilization of Biomass Center for R&D of Fine Chemicals Guizhou University Guiyang 550025 P. R. China
- The Key Laboratory of Environmental Pollution Monitoring and Disease Control Ministry of Education School of Public Health Guizhou Medical University Guiyang 550025 P. R. China
| | - Hu Li
- State Key Laboratory Breeding Base of Green Pesticide & Agricultural Bioengineering Key Laboratory of Green Pesticide & Agricultural Bioengineering Ministry of Education State-Local Joint Laboratory for Comprehensive Utilization of Biomass Center for R&D of Fine Chemicals Guizhou University Guiyang 550025 P. R. China
| | - Song Yang
- State Key Laboratory Breeding Base of Green Pesticide & Agricultural Bioengineering Key Laboratory of Green Pesticide & Agricultural Bioengineering Ministry of Education State-Local Joint Laboratory for Comprehensive Utilization of Biomass Center for R&D of Fine Chemicals Guizhou University Guiyang 550025 P. R. China
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8
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Miller BK, Crozier PA. Linking Changes in Reaction Kinetics and Atomic-Level Surface Structures on a Supported Ru Catalyst for CO Oxidation. ACS Catal 2021. [DOI: 10.1021/acscatal.0c03789] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Benjamin K. Miller
- School for Engineering of Matter, Transport and Energy, Arizona State University, Tempe, Arizona 85287-6106, United States
| | - Peter A. Crozier
- School for Engineering of Matter, Transport and Energy, Arizona State University, Tempe, Arizona 85287-6106, United States
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9
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Shang Y, Xu X, Gao B, Wang S, Duan X. Single-atom catalysis in advanced oxidation processes for environmental remediation. Chem Soc Rev 2021; 50:5281-5322. [DOI: 10.1039/d0cs01032d] [Citation(s) in RCA: 240] [Impact Index Per Article: 80.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
This review presents the recent advances in synthetic strategies, characterisation, and computations of carbon-based single-atom catalysts, as well as their innovative applications and mechanisms in advanced oxidation technologies.
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Affiliation(s)
- Yanan Shang
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse
- School of Environmental Science and Engineering
- Shandong University
- Jinan 250100
- P. R. China
| | - Xing Xu
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse
- School of Environmental Science and Engineering
- Shandong University
- Jinan 250100
- P. R. China
| | - Baoyu Gao
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse
- School of Environmental Science and Engineering
- Shandong University
- Jinan 250100
- P. R. China
| | - Shaobin Wang
- School of Chemical Engineering and Advanced Materials
- The University of Adelaide
- Adelaide
- Australia
| | - Xiaoguang Duan
- School of Chemical Engineering and Advanced Materials
- The University of Adelaide
- Adelaide
- Australia
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10
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Choi JIJ, Kim TS, Kim D, Lee SW, Park JY. Operando Surface Characterization on Catalytic and Energy Materials from Single Crystals to Nanoparticles. ACS NANO 2020; 14:16392-16413. [PMID: 33210917 DOI: 10.1021/acsnano.0c07549] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Modern surface science faces two major challenges, a materials gap and a pressure gap. While studies on single crystal surface in ultrahigh vacuum have uncovered the atomic and electronic structures of the surface, the materials and environmental conditions of commercial catalysis are much more complicated, both in the structure of the materials and in the accessible pressure range of analysis instruments. Model systems and operando surface techniques have been developed to bridge these gaps. In this Review, we highlight the current trends in the development of the surface characterization techniques and methodologies in more realistic environments, with emphasis on recent research efforts at the Korea Advanced Institute of Science and Technology. We show principles and applications of the microscopic and spectroscopic surface techniques at ambient pressure that were used for the characterization of atomic structure, electronic structure, charge transport, and the mechanical properties of catalytic and energy materials. Ambient pressure scanning tunneling microscopy and X-ray photoelectron spectroscopy allow us to observe the surface restructuring that occurs during oxidation, reduction, and catalytic processes. In addition, we introduce the ambient pressure atomic force microscopy that revealed the morphological, mechanical, and charge transport properties that occur during the catalytic and energy conversion processes. Hot electron detection enables the monitoring of catalytic reactions and electronic excitations on the surface. Overall, the information on the nature of catalytic reactions obtained with operando spectroscopic and microscopic techniques may bring breakthroughs in some of the global energy and environmental problems the world is facing.
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Affiliation(s)
- Joong Il Jake Choi
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science (IBS), Daejeon 34141, South Korea
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, South Korea
| | - Taek-Seung Kim
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science (IBS), Daejeon 34141, South Korea
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, South Korea
| | - Daeho Kim
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science (IBS), Daejeon 34141, South Korea
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, South Korea
| | - Si Woo Lee
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science (IBS), Daejeon 34141, South Korea
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, South Korea
| | - Jeong Young Park
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science (IBS), Daejeon 34141, South Korea
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, South Korea
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11
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Martin TE, Mitchell RW, Boyes ED, Gai PL. Atom-by-atom analysis of sintering dynamics and stability of Pt nanoparticle catalysts in chemical reactions. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2020; 378:20190597. [PMID: 33100157 PMCID: PMC7661282 DOI: 10.1098/rsta.2019.0597] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Accepted: 06/29/2020] [Indexed: 06/11/2023]
Abstract
Supported Pt nanoparticles are used extensively in chemical processes, including for fuel cells, fuels, pollution control and hydrogenation reactions. Atomic-level deactivation mechanisms play a critical role in the loss of performance. In this original research paper, we introduce real-time in-situ visualization and quantitative analysis of dynamic atom-by-atom sintering and stability of model Pt nanoparticles on a carbon support, under controlled chemical reaction conditions of temperature and continuously flowing gas. We use a novel environmental scanning transmission electron microscope with single-atom resolution, to understand the mechanisms. Our results track the areal density of dynamic single atoms on the support between nanoparticles and attached to them; both as migrating species in performance degradation and as potential new independent active species. We demonstrate that the decay of smaller nanoparticles is initiated by a local lack of single atoms; while a post decay increase in single-atom density suggests anchoring sites on the substrate before aggregation to larger particles. The analyses reveal a relationship between the density and mobility of single atoms, particle sizes and their nature in the immediate neighbourhood. The results are combined with practical catalysts important in technological processes. The findings illustrate the complex nature of sintering and deactivation. They are used to generate new fundamental insights into nanoparticle sintering dynamics at the single-atom level, important in the development of efficient supported nanoparticle systems for improved chemical processes and novel single-atom catalysis. This article is part of a discussion meeting issue 'Dynamic in situ microscopy relating structure and function'.
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Affiliation(s)
- Thomas E. Martin
- Department of Physics, University of York, York YO10 5DD, UK
- York Nanocentre, University of York, York YO10 5DD, UK
| | - Robert W. Mitchell
- Department of Physics, University of York, York YO10 5DD, UK
- York Nanocentre, University of York, York YO10 5DD, UK
| | - Edward D. Boyes
- Department of Physics, University of York, York YO10 5DD, UK
- Department of Electronic Engineering, University of York, York YO10 5DD, UK
- York Nanocentre, University of York, York YO10 5DD, UK
| | - Pratibha L. Gai
- Department of Physics, University of York, York YO10 5DD, UK
- Department of Chemistry, University of York, York YO10 5DD, UK
- York Nanocentre, University of York, York YO10 5DD, UK
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12
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Boyes ED, LaGrow AP, Ward MR, Martin TE, Gai PL. Visualizing single atom dynamics in heterogeneous catalysis using analytical in situ environmental scanning transmission electron microscopy. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2020; 378:20190605. [PMID: 33100164 PMCID: PMC7661277 DOI: 10.1098/rsta.2019.0605] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Progress is reported in analytical in situ environmental scanning transmission electron microscopy (ESTEM) for visualizing and analysing in real-time dynamic gas-solid catalyst reactions at the single-atom level under controlled reaction conditions of gas environment and temperature. The recent development of the ESTEM advances the capability of the established ETEM with the detection of fundamental single atoms, and the associated atomic structure of selected solid-state heterogeneous catalysts, in catalytic reactions in their working state. The new data provide improved understanding of dynamic atomic processes and reaction mechanisms, in activity and deactivation, at the fundamental level; and in the chemistry underpinning important technological processes. The benefits of atomic resolution-E(S)TEM to science and technology include new knowledge leading to improved technological processes, reductions in energy requirements and better management of environmental waste. This article is part of a discussion meeting issue 'Dynamic in situ microscopy relating structure and function'.
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Affiliation(s)
- Edward D. Boyes
- The York Nanocentre, University of York, York YO10 5DD, UK
- Department of Physics, University of York, York YO10 5DD, UK
- Department of Electronic Engineering, University of York, York YO10 5DD, UK
- e-mail:
| | - Alec P. LaGrow
- International Iberian Nanotechnology Laboratory, Braga 4715-330, Portugal
| | - Michael R. Ward
- The York Nanocentre, University of York, York YO10 5DD, UK
- Department of Physics, University of York, York YO10 5DD, UK
| | - Thomas E. Martin
- The York Nanocentre, University of York, York YO10 5DD, UK
- Department of Physics, University of York, York YO10 5DD, UK
| | - Pratibha L. Gai
- The York Nanocentre, University of York, York YO10 5DD, UK
- Department of Physics, University of York, York YO10 5DD, UK
- Department of Chemistry, University of York, York YO10 5DD, UK
- e-mail:
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13
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Wang K, Wang X, Liang X. Synthesis of High Metal Loading Single Atom Catalysts and Exploration of the Active Center Structure. ChemCatChem 2020. [DOI: 10.1002/cctc.202001255] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Kaiying Wang
- Department of Chemical and Biochemical Engineering Missouri University of Science and Technology Rolla MO 65409 USA
| | - Xiaofeng Wang
- College of Environmental Science and Engineering Dalian Maritime University Dalian 116026 P.R. China
| | - Xinhua Liang
- Department of Chemical and Biochemical Engineering Missouri University of Science and Technology Rolla MO 65409 USA
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14
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Lang R, Du X, Huang Y, Jiang X, Zhang Q, Guo Y, Liu K, Qiao B, Wang A, Zhang T. Single-Atom Catalysts Based on the Metal–Oxide Interaction. Chem Rev 2020; 120:11986-12043. [DOI: 10.1021/acs.chemrev.0c00797] [Citation(s) in RCA: 203] [Impact Index Per Article: 50.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Rui Lang
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, P. R. China
| | - Xiaorui Du
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Yike Huang
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xunzhu Jiang
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Qian Zhang
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yalin Guo
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Kaipeng Liu
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Botao Qiao
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Aiqin Wang
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Tao Zhang
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
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15
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Kaiser SK, Chen Z, Faust Akl D, Mitchell S, Pérez-Ramírez J. Single-Atom Catalysts across the Periodic Table. Chem Rev 2020; 120:11703-11809. [PMID: 33085890 DOI: 10.1021/acs.chemrev.0c00576] [Citation(s) in RCA: 329] [Impact Index Per Article: 82.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Isolated atoms featuring unique reactivity are at the heart of enzymatic and homogeneous catalysts. In contrast, although the concept has long existed, single-atom heterogeneous catalysts (SACs) have only recently gained prominence. Host materials have similar functions to ligands in homogeneous catalysts, determining the stability, local environment, and electronic properties of isolated atoms and thus providing a platform for tailoring heterogeneous catalysts for targeted applications. Within just a decade, we have witnessed many examples of SACs both disrupting diverse fields of heterogeneous catalysis with their distinctive reactivity and substantially enriching our understanding of molecular processes on surfaces. To date, the term SAC mostly refers to late transition metal-based systems, but numerous examples exist in which isolated atoms of other elements play key catalytic roles. This review provides a compositional encyclopedia of SACs, celebrating the 10th anniversary of the introduction of this term. By defining single-atom catalysis in the broadest sense, we explore the full elemental diversity, joining different areas across the whole periodic table, and discussing historical milestones and recent developments. In particular, we examine the coordination structures and associated properties accessed through distinct single-atom-host combinations and relate them to their main applications in thermo-, electro-, and photocatalysis, revealing trends in element-specific evolution, host design, and uses. Finally, we highlight frontiers in the field, including multimetallic SACs, atom proximity control, and possible applications for multistep and cascade reactions, identifying challenges, and propose directions for future development in this flourishing field.
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Affiliation(s)
- Selina K Kaiser
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, 8093 Zurich, Switzerland
| | - Zupeng Chen
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, 8093 Zurich, Switzerland
| | - Dario Faust Akl
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, 8093 Zurich, Switzerland
| | - Sharon Mitchell
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, 8093 Zurich, Switzerland
| | - Javier Pérez-Ramírez
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, 8093 Zurich, Switzerland
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16
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Abstract
Many heterogeneous chemical reactions involve gases catalyzed over solid surfaces at elevated temperatures and play a critical role in the production of energy, healthcare, pollution control, industrial products, and food. These catalytic reactions take place at the atomic level, with active structures forming under reaction conditions. A fundamental understanding of catalysis at the single atom resolution is therefore a major advance in a rational framework upon which future catalytic processes can be built. Visualization and analysis of gas-catalyst chemical reactions at the atomic level under controlled reaction conditions are key to understanding the catalyst structural evolution and atomic scale reaction mechanisms crucial to the performance and the development of improved catalysts and chemical processes. Increasingly, dynamic single atoms and atom clusters are believed to lead to enhanced catalyst performance, but despite considerable efforts, reaction mechanisms at the single atom level under reaction conditions of gas and temperature are not well understood. The development of the atomic lattice resolution environmental transmission electron microscope (ETEM) by the authors is widely used to visualize gas-solid catalyst reactions at this atomic level. It has recently been advanced to the environmental scanning TEM (ESTEM) with single atom resolution and full analytical capabilities. The ESTEM employs high-angle annular dark-field imaging where intensity is approximately proportional to the square of the atomic number (Z). In this Account, we highlight the ESTEM development also introduced by the authors for real time in situ studies to reliably discern metal atoms on lighter supports in gas and high temperature environments, evolving oxide/metal interfaces, and atomic level reaction mechanisms in heterogeneous catalysts more generally and informatively, with utilizing the wider body of literature. The highlights include platinum/carbon systems of interest in fuel cells to meet energy demands and reduce environmental pollution, in reduction/oxidation (redox) mechanisms of copper and nickel nanoparticles extensively employed in catalysis, electronics, and sensors, and in the activation of supported cobalt catalysts in Fischer-Tropsch (FT) synthesis to produce fuels. By following the dynamic reduction process at operating temperature, we investigate Pt atom migrations from irregular nanoparticles in a carbon supported platinum catalyst and the resulting faceting. We outline the factors that govern the mechanism involved, with the discovery of single atom interactions which indicate that a primary role of the nanoparticles is to act as reservoirs of low coordination atoms and clusters. This has important implications in supported nanoparticle catalysis and nanoparticle science. In copper and nickel systems, we track the oxidation front at the atomic level as it proceeds across a nanoparticle, by directly monitoring Z-contrast changes with time and temperature. Regeneration of deactivated catalysts is key to prolong catalyst life. We discuss and review analyses of dynamic redox cycles for the redispersion of nickel nanoparticles with single atom resolution. In the FT process, pretreatment of practical cobalt/silica catalysts reveals higher low-coordination Co0 active sites for CO adsorption. Collectively, the ESTEM findings generate structural insights into catalyst dynamics important in the development of efficient catalysts and processes.
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17
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Li X, Yang X, Zhang J, Huang Y, Liu B. In Situ/Operando Techniques for Characterization of Single-Atom Catalysts. ACS Catal 2019. [DOI: 10.1021/acscatal.8b04937] [Citation(s) in RCA: 194] [Impact Index Per Article: 38.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Xuning Li
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore 637459, Singapore
| | - Xiaofeng Yang
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Junming Zhang
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore 637459, Singapore
| | - Yanqiang Huang
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Bin Liu
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore 637459, Singapore
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18
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19
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Mitchell RW, Lloyd DC, van de Water LGA, Ellis PR, Metcalfe KA, Sibbald C, Davies LH, Enache DI, Kelly GJ, Boyes ED, Gai PL. Effect of Pretreatment Method on the Nanostructure and Performance of Supported Co Catalysts in Fischer–Tropsch Synthesis. ACS Catal 2018. [DOI: 10.1021/acscatal.8b02320] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | | | - Leon G. A. van de Water
- Johnson Matthey Technology Centre, Belasis Avenue, Stockton-on-Tees, Billingham TS23 1LH, U.K
| | - Peter R. Ellis
- Johnson Matthey Technology Centre, Blounts Court, Sonning Common RG4 9NH, U.K
| | - Kirsty A. Metcalfe
- Johnson Matthey, Belasis Avenue, Stockton-on-Tees, Billingham TS23 1LH, U.K
| | - Connor Sibbald
- Johnson Matthey, Belasis Avenue, Stockton-on-Tees, Billingham TS23 1LH, U.K
| | - Laura H. Davies
- Johnson Matthey, Belasis Avenue, Stockton-on-Tees, Billingham TS23 1LH, U.K
| | - Dan I. Enache
- Johnson Matthey, Belasis Avenue, Stockton-on-Tees, Billingham TS23 1LH, U.K
| | - Gordon J. Kelly
- Johnson Matthey, Belasis Avenue, Stockton-on-Tees, Billingham TS23 1LH, U.K
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20
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Nguyen L, Tao PP, Liu H, Al-Hada M, Amati M, Sezen H, Gregoratti L, Tang Y, House SD, Tao FF. X-ray Photoelectron Spectroscopy Studies of Nanoparticles Dispersed in Static Liquid. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:9606-9616. [PMID: 29786441 DOI: 10.1021/acs.langmuir.8b00806] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
For nanoparticles active for chemical and energy transformations in static liquid environment, chemistries of surface or near-surface regions of these catalyst nanoparticles in liquid are crucial for fundamentally understanding their catalytic performances at a molecular level. Compared to catalysis at a solid-gas interface, there is very limited information on the surface of these catalyst nanoparticles under a working condition or during catalysis in liquid. Photoelectron spectroscopy is a surface-sensitive technique; however, it is challenging to study the surfaces of catalyst nanoparticles dispersed in static liquid because of the short inelastic mean free path of photoelectrons traveling in liquid. Here, we report a method for tracking the surface of nanoparticles dispersed in static liquid by employing graphene layers as an electron-transparent membrane to separate the static liquid containing a solvent, catalyst nanoparticles, and reactants from the high-vacuum environment of photoelectron spectrometers. The surfaces of Ag nanoparticles dispersed in static liquid sealed in such a graphene membrane liquid cell were successfully characterized using a photoelectron spectrometer equipped with a high vacuum energy analyzer. With this method, the surface of catalyst nanoparticles dispersed in liquid during catalysis at a relatively high temperature up to 150 °C can be tracked with photoelectron spectroscopy.
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Affiliation(s)
- Luan Nguyen
- Department of Chemical and Petroleum Engineering , University of Kansas , Lawrence , Kansas 66045 , United States
| | - Paul Pengcheng Tao
- Department of Chemical and Petroleum Engineering , University of Kansas , Lawrence , Kansas 66045 , United States
| | - Huimin Liu
- Department of Chemical and Petroleum Engineering , University of Kansas , Lawrence , Kansas 66045 , United States
| | | | - Matteo Amati
- Elettra-Sincrotrone Trieste ScPA , Trieste 34012 , Italy
| | - Hikmet Sezen
- Elettra-Sincrotrone Trieste ScPA , Trieste 34012 , Italy
| | | | - Yu Tang
- Department of Chemical and Petroleum Engineering , University of Kansas , Lawrence , Kansas 66045 , United States
| | - Stephen D House
- Department of Chemical and Petroleum Engineering , University of Pittsburgh , Pittsburgh , Pennsylvania 15261 , United States
| | - Franklin Feng Tao
- Department of Chemical and Petroleum Engineering , University of Kansas , Lawrence , Kansas 66045 , United States
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21
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Luo L, Su M, Yan P, Zou L, Schreiber DK, Baer DR, Zhu Z, Zhou G, Wang Y, Bruemmer SM, Xu Z, Wang C. Atomic origins of water-vapour-promoted alloy oxidation. NATURE MATERIALS 2018; 17:514-518. [PMID: 29736001 DOI: 10.1038/s41563-018-0078-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2016] [Accepted: 04/12/2018] [Indexed: 06/08/2023]
Abstract
The presence of water vapour, intentional or unavoidable, is crucial to many materials applications, such as in steam generators, turbine engines, fuel cells, catalysts and corrosion1-4. Phenomenologically, water vapour has been noted to accelerate oxidation of metals and alloys5,6. However, the atomistic mechanisms behind such oxidation remain elusive. Through direct in situ atomic-scale transmission electron microscopy observations and density functional theory calculations, we reveal that water-vapour-enhanced oxidation of a nickel-chromium alloy is associated with proton-dissolution-promoted formation, migration, and clustering of both cation and anion vacancies. Protons derived from water dissociation can occupy interstitial positions in the oxide lattice, consequently lowering vacancy formation energy and decreasing the diffusion barrier of both cations and anions, which leads to enhanced oxidation in moist environments at elevated temperatures. This work provides insights into water-vapour-enhanced alloy oxidation and has significant implications in other material and chemical processes involving water vapour, such as corrosion, heterogeneous catalysis and ionic conduction.
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Affiliation(s)
- Langli Luo
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA, USA
| | - Mao Su
- Computational Mathematics Group, Pacific Northwest National Laboratory, Richland, Washington, USA
- CAS Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing, China
- School of Physical Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Pengfei Yan
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA, USA
| | - Lianfeng Zou
- Department of Mechanical Engineering & Multidisciplinary Program in Materials Science and Engineering, State University of New York, Binghamton, NY, USA
| | - Daniel K Schreiber
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, WA, USA
| | - Donald R Baer
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA, USA
| | - Zihua Zhu
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA, USA
| | - Guangwen Zhou
- Department of Mechanical Engineering & Multidisciplinary Program in Materials Science and Engineering, State University of New York, Binghamton, NY, USA
| | - Yanting Wang
- CAS Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing, China
- School of Physical Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Stephen M Bruemmer
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, WA, USA
| | - Zhijie Xu
- Computational Mathematics Group, Pacific Northwest National Laboratory, Richland, Washington, USA.
| | - Chongmin Wang
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA, USA.
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22
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Furnival T, Leary RK, Tyo EC, Vajda S, Ramasse QM, Thomas JM, Bristowe PD, Midgley PA. Anomalous diffusion of single metal atoms on a graphene oxide support. Chem Phys Lett 2017. [DOI: 10.1016/j.cplett.2017.04.071] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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23
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Liu J. Aberration-corrected scanning transmission electron microscopy in single-atom catalysis: Probing the catalytically active centers. CHINESE JOURNAL OF CATALYSIS 2017. [DOI: 10.1016/s1872-2067(17)62900-0] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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24
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Zhu Y, Browning ND. The Role of Gas in Determining Image Quality and Resolution During In Situ Scanning Transmission Electron Microscopy Experiments. ChemCatChem 2017. [DOI: 10.1002/cctc.201700474] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yuanyuan Zhu
- Physical & Computational Science Directorate Pacific Northwest National Laboratory Richland WA 99352 USA
| | - Nigel D. Browning
- Physical & Computational Science Directorate Pacific Northwest National Laboratory Richland WA 99352 USA
- Department of Materials Science and Engineering University of Washington Seattle WA 98195 USA
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25
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Ward MR, Theobald B, Sharman J, Boyes ED, Gai PL. Direct observations of dynamic PtCo interactions in fuel cell catalyst precursors at the atomic level using E(S)TEM. J Microsc 2017; 269:143-150. [PMID: 28682468 DOI: 10.1111/jmi.12600] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Revised: 05/16/2017] [Accepted: 06/13/2017] [Indexed: 11/30/2022]
Abstract
Reduction reactions in practical bimetallic platinum-cobalt electrode catalyst precursors containing platinum, cobalt and cobalt oxides in hydrogen at 200, 450 and 700 °C for 6 h have been studied in situ using an aberration corrected environmental (scanning) transmission electron microscope (AC E(S)TEM). Little difference was observed in reduction at 200 °C but during and after reduction at 450 °C, small nanoparticles less than 3 nm in diameter with tetragonal PtCo structures were observed and limited Pt3 Co ordering could be seen on the surfaces of larger nanoparticles. During and after reduction at 700 °C, fully ordered Pt3 Co and PtCo nanoparticles larger than 4 nm were produced and the average nanoparticle size almost trebled relative to the fresh precursor. After reduction at 450 and 700 °C, most nanoparticles were disordered platinum/cobalt alloys with fcc structure. After reduction at 700 °C many of the smallest nanoparticles disappeared suggesting Ostwald ripening had occurred. Mechanisms concerning the thermal transformation of mixed cobalt and platinum species are discussed, offering new insights into the creation of bimetallic platinum-cobalt nanoparticles in fuel cell catalysts.
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Affiliation(s)
- M R Ward
- York Nanocentre, Department of Physics, University of York, Heslington, York, UK
| | - B Theobald
- Johnson Matthey Technology Centre, Sonning Common, Reading, UK
| | - J Sharman
- Johnson Matthey Technology Centre, Sonning Common, Reading, UK
| | - E D Boyes
- York Nanocentre, Department of Physics, University of York, Heslington, York, UK.,York Nanocentre, Department of Electronics, University of York, Heslington, York, UK
| | - P L Gai
- York Nanocentre, Department of Physics, University of York, Heslington, York, UK.,York Nanocentre, Department of Chemistry, University of York, Heslington, York, UK
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26
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Nilsson Pingel T, Fouladvand S, Heggen M, Dunin-Borkowski RE, Jäger W, Westenberger P, Phifer D, McNeil J, Skoglundh M, Grönbeck H, Olsson E. Three-Dimensional Probing of Catalyst Ageing on Different Length Scales: A Case Study of Changes in Microstructure and Activity for CO Oxidation of a Pt-Pd/Al2
O3
Catalyst. ChemCatChem 2017. [DOI: 10.1002/cctc.201700479] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Torben Nilsson Pingel
- Competence Centre for Catalysis, Department of Physics; Chalmers University of Technology; 41296 Gothenburg Sweden
| | - Sheedeh Fouladvand
- Competence Centre for Catalysis, Department of Chemistry and Chemical Engineering; Chalmers University of Technology; 41296 Gothenburg Sweden
| | - Marc Heggen
- Ernst Ruska-Centre for Microscopy and Spectroscopy with Electrons and Peter Grünberg Institute; Jülich Research Centre; 52425 Jülich Germany
| | - Rafal E. Dunin-Borkowski
- Ernst Ruska-Centre for Microscopy and Spectroscopy with Electrons and Peter Grünberg Institute; Jülich Research Centre; 52425 Jülich Germany
| | - Wolfgang Jäger
- Competence Centre for Catalysis, Department of Physics; Chalmers University of Technology; 41296 Gothenburg Sweden
| | | | - Daniel Phifer
- FEI-Science Group; 5651 GG Eindhoven The Netherlands
| | | | - Magnus Skoglundh
- Competence Centre for Catalysis, Department of Chemistry and Chemical Engineering; Chalmers University of Technology; 41296 Gothenburg Sweden
| | - Henrik Grönbeck
- Competence Centre for Catalysis, Department of Physics; Chalmers University of Technology; 41296 Gothenburg Sweden
| | - Eva Olsson
- Competence Centre for Catalysis, Department of Physics; Chalmers University of Technology; 41296 Gothenburg Sweden
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27
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Tao F(F, Crozier PA. Atomic-Scale Observations of Catalyst Structures under Reaction Conditions and during Catalysis. Chem Rev 2016; 116:3487-539. [DOI: 10.1021/cr5002657] [Citation(s) in RCA: 203] [Impact Index Per Article: 25.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Franklin (Feng) Tao
- Department
of Chemical and Petroleum Engineering, University of Kansas, Lawrence, Kansas 66045, United States
- Department
of Chemistry, University of Kansas, Lawrence, Kansas 66045, United States
| | - Peter A. Crozier
- School
of Engineering of Matter, Transport and Energy, Arizona State University, Tempe, Arizona 85287, United States
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28
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Cremons DR, Flannigan DJ. Direct in situ thermometry: Variations in reciprocal-lattice vectors and challenges with the Debye–Waller effect. Ultramicroscopy 2016; 161:10-16. [DOI: 10.1016/j.ultramic.2015.10.022] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2015] [Accepted: 10/24/2015] [Indexed: 11/28/2022]
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29
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Gai PL, Yoshida K, Ward MR, Walsh M, Baker RT, van de Water L, Watson MJ, Boyes ED. Visualisation of single atom dynamics in water gas shift reaction for hydrogen generation. Catal Sci Technol 2016. [DOI: 10.1039/c5cy01154j] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In situ real time single atom resolution observations of dynamic water gas shift catalysts in CO + water (WGS) environments.
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Affiliation(s)
- Pratibha L. Gai
- The York Nanocentre
- University of York
- , UK
- Department of Chemistry
- University of York
| | - Kenta Yoshida
- The York Nanocentre
- University of York
- , UK
- Institute for Advanced Research
- Nagoya University
| | - Michael R. Ward
- The York Nanocentre
- University of York
- , UK
- Department of Physics
- University of York
| | - Michael Walsh
- The York Nanocentre
- University of York
- , UK
- Department of Physics
- University of York
| | | | | | | | - Edward D. Boyes
- The York Nanocentre
- University of York
- , UK
- Department of Physics
- University of York
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30
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Pennycook SJ, Zhou W, Pantelides ST. Watching Atoms Work: Nanocluster Structure and Dynamics. ACS NANO 2015; 9:9437-9440. [PMID: 26407002 DOI: 10.1021/acsnano.5b05510] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
In the space of little more than a decade, the resolution of the electron microscope has improved to provide clear views of the atomic world. Not only can atomic arrangements be imaged, but with a little gentle provocation from the electron beam, atoms can be energized and their dynamics can also be revealed. In this issue of ACS Nano, Chen et al. image Si atoms growing under the beam into cubic crystalline arrangements.
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Affiliation(s)
- Stephen J Pennycook
- Department of Materials Science and Engineering, National University of Singapore , Singapore, Singapore
- Department of Materials Science and Engineering, University of Tennessee , Knoxville, Tennessee 37996, United States
- Department of Physics and Astronomy, Vanderbilt University , Nashville, Tennessee 37235, United States
| | - Wu Zhou
- Materials Science and Technology Division, Oak Ridge National Laboratory , Oak Ridge, Tennessee 37831, United States
| | - Sokrates T Pantelides
- Department of Physics and Astronomy, Vanderbilt University , Nashville, Tennessee 37235, United States
- Materials Science and Technology Division, Oak Ridge National Laboratory , Oak Ridge, Tennessee 37831, United States
- Department of Electrical Engineering and Computer Science, Vanderbilt University , Nashville, Tennessee 37235, United States
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31
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Martin TE, Gai PL, Boyes ED. Dynamic Imaging of Ostwald Ripening by Environmental Scanning Transmission Electron Microscopy. ChemCatChem 2015. [DOI: 10.1002/cctc.201500830] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Thomas E. Martin
- The York Nanocentre and Department of Physics; University of York; Heslington York YO10 5DD UK
| | - Pratibha L. Gai
- The York Nanocentre and Department of Physics; University of York; Heslington York YO10 5DD UK
- Department of Chemistry; University of York; Heslington York YO10 5DD UK
| | - Edward D. Boyes
- The York Nanocentre and Department of Physics; University of York; Heslington York YO10 5DD UK
- Department of Electronics; University of York; Heslington York YO10 5DD UK
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32
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Helveg S, Kisielowski C, Jinschek J, Specht P, Yuan G, Frei H. Observing gas-catalyst dynamics at atomic resolution and single-atom sensitivity. Micron 2015; 68:176-185. [DOI: 10.1016/j.micron.2014.07.009] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2014] [Revised: 07/24/2014] [Accepted: 07/25/2014] [Indexed: 12/20/2022]
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