1
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Yang H, Li G, Liu Q, Cheng H, Wang X, Cheng J, Jiang G, Zhang F, Zhang Z, Hao Z. Tailoring the Electronic Metal-Support Interactions in Supported Silver Catalysts through Al modification for Efficient Ethylene Epoxidation. Angew Chem Int Ed Engl 2024; 63:e202400627. [PMID: 38390644 DOI: 10.1002/anie.202400627] [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: 01/09/2024] [Revised: 02/11/2024] [Accepted: 02/22/2024] [Indexed: 02/24/2024]
Abstract
Metal-modified catalysts have attracted extraordinary research attention in heterogeneous catalysis due to their enhanced geometric and electronic structures and outstanding catalytic performances. Silver (Ag) possesses necessary active sites for ethylene epoxidation, but the catalyst activity is usually sacrificed to obtain high selectivity towards ethylene oxide (EO). Herein, we report that using Al can help in tailoring the unoccupied 3d state of Ag on the MnO2 support through strong electronic metal-support interactions (EMSIs), overcoming the activity-selectivity trade-off for ethylene epoxidation and resulting in a very high ethylene conversion rate (~100 %) with 90 % selectivity for EO under mild conditions (170 °C and atmospheric pressure). Structural characterization and theoretical calculations revealed that the EMSIs obtained by the Al modification tailor the unoccupied 3d state of Ag, modulating the adsorption of ethylene (C2H4) and oxygen (O2) and facilitating EO desorption, resulting in high C2H4 conversion. Meanwhile, the increased number of positively charge Ag+ lowers the energy barrier for C2H4(ads) oxidation to produce oxametallacycle (OMC), inducing the unexpectedly high EO selectivity. Such an extraordinary electronic promotion provides new promising pathways for designing advanced metal catalysts with high activity and selectivity in selective oxidation reactions.
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Affiliation(s)
- Hongling Yang
- National Engineering Laboratory for VOCs Pollution Control Material & Technology, Research Center for Environmental Material and Pollution Control Technology, University of the Chinese Academy of Sciences, Beijing, 101408, China
- Beijing Key Laboratory for VOCs Pollution Prevention and Treatment Technology and Application of Urban Air, Beijing Municipal Research Institute of Eco-Environmental Protection, Beijing, 100037, China
| | - Ganggang Li
- National Engineering Laboratory for VOCs Pollution Control Material & Technology, Research Center for Environmental Material and Pollution Control Technology, University of the Chinese Academy of Sciences, Beijing, 101408, China
| | - Qinggang Liu
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Haixia Cheng
- Material Digital R&D Center, China Iron & Steel Research Institute Group, Beijing, 100081, China
| | | | - Jie Cheng
- National Engineering Laboratory for VOCs Pollution Control Material & Technology, Research Center for Environmental Material and Pollution Control Technology, University of the Chinese Academy of Sciences, Beijing, 101408, China
| | - Guoxia Jiang
- National Engineering Laboratory for VOCs Pollution Control Material & Technology, Research Center for Environmental Material and Pollution Control Technology, University of the Chinese Academy of Sciences, Beijing, 101408, China
| | - Fenglian Zhang
- National Engineering Laboratory for VOCs Pollution Control Material & Technology, Research Center for Environmental Material and Pollution Control Technology, University of the Chinese Academy of Sciences, Beijing, 101408, China
| | - Zhongshen Zhang
- National Engineering Laboratory for VOCs Pollution Control Material & Technology, Research Center for Environmental Material and Pollution Control Technology, University of the Chinese Academy of Sciences, Beijing, 101408, China
| | - Zhengping Hao
- National Engineering Laboratory for VOCs Pollution Control Material & Technology, Research Center for Environmental Material and Pollution Control Technology, University of the Chinese Academy of Sciences, Beijing, 101408, China
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2
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Miyazaki R, Belthle KS, Tüysüz H, Foppa L, Scheffler M. Materials Genes of CO 2 Hydrogenation on Supported Cobalt Catalysts: An Artificial Intelligence Approach Integrating Theoretical and Experimental Data. J Am Chem Soc 2024; 146:5433-5444. [PMID: 38374731 PMCID: PMC10910553 DOI: 10.1021/jacs.3c12984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 02/06/2024] [Accepted: 02/08/2024] [Indexed: 02/21/2024]
Abstract
Designing materials for catalysis is challenging because the performance is governed by an intricate interplay of various multiscale phenomena, such as the chemical reactions on surfaces and the materials' restructuring during the catalytic process. In the case of supported catalysts, the role of the support material can be also crucial. Here, we address this intricacy challenge by a symbolic-regression artificial intelligence (AI) approach. We identify the key physicochemical parameters correlated with the measured performance, out of many offered candidate parameters characterizing the materials, reaction environment, and possibly relevant underlying phenomena. Importantly, these parameters are obtained by both experiments and ab initio simulations. The identified key parameters might be called "materials genes", in analogy to genes in biology: they correlate with the property or function of interest, but the explicit physical relationship is not (necessarily) known. To demonstrate the approach, we investigate the CO2 hydrogenation catalyzed by cobalt nanoparticles supported on silica. Crucially, the silica support is modified with the additive metals magnesium, calcium, titanium, aluminum, or zirconium, which results in six materials with significantly different performances. These systems mimic hydrothermal vents, which might have produced the first organic molecules on Earth. The key parameters correlated with the CH3OH selectivity reflect the reducibility of cobalt species, the adsorption strength of reaction intermediates, and the chemical nature of the additive metal. By using an AI model trained on basic elemental properties of the additive metals (e.g., ionization potential) as physicochemical parameters, new additives are suggested. The predicted CH3OH selectivity of cobalt catalysts supported on silica modified with vanadium and zinc is confirmed by new experiments.
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Affiliation(s)
- Ray Miyazaki
- The
NOMAD Laboratory at the Fritz-Haber-Institut of the Max-Planck-Gesellschaft
and IRIS-Adlershof of the Humboldt-Universität zu Berlin, Faradayweg 4-6, Berlin 14195, Germany
| | - Kendra S Belthle
- Max-Planck-Institut
für Kohlenforschung, Kaiser-Wilhelm-Platz 1, Mülheim an
der Ruhr 45470, Germany
| | - Harun Tüysüz
- Max-Planck-Institut
für Kohlenforschung, Kaiser-Wilhelm-Platz 1, Mülheim an
der Ruhr 45470, Germany
| | - Lucas Foppa
- The
NOMAD Laboratory at the Fritz-Haber-Institut of the Max-Planck-Gesellschaft
and IRIS-Adlershof of the Humboldt-Universität zu Berlin, Faradayweg 4-6, Berlin 14195, Germany
| | - Matthias Scheffler
- The
NOMAD Laboratory at the Fritz-Haber-Institut of the Max-Planck-Gesellschaft
and IRIS-Adlershof of the Humboldt-Universität zu Berlin, Faradayweg 4-6, Berlin 14195, Germany
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3
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Chen C, Jin H, Wang P, Sun X, Jaroniec M, Zheng Y, Qiao SZ. Local reaction environment in electrocatalysis. Chem Soc Rev 2024; 53:2022-2055. [PMID: 38204405 DOI: 10.1039/d3cs00669g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2024]
Abstract
Beyond conventional electrocatalyst engineering, recent studies have unveiled the effectiveness of manipulating the local reaction environment in enhancing the performance of electrocatalytic reactions. The general principles and strategies of local environmental engineering for different electrocatalytic processes have been extensively investigated. This review provides a critical appraisal of the recent advancements in local reaction environment engineering, aiming to comprehensively assess this emerging field. It presents the interactions among surface structure, ions distribution and local electric field in relation to the local reaction environment. Useful protocols such as the interfacial reactant concentration, mass transport rate, adsorption/desorption behaviors, and binding energy are in-depth discussed toward modifying the local reaction environment. Meanwhile, electrode physical structures and reaction cell configurations are viable optimization methods in engineering local reaction environments. In combination with operando investigation techniques, we conclude that rational modifications of the local reaction environment can significantly enhance various electrocatalytic processes by optimizing the thermodynamic and kinetic properties of the reaction interface. We also outline future research directions to attain a comprehensive understanding and effective modulation of the local reaction environment.
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Affiliation(s)
- Chaojie Chen
- School of Chemical Engineering, University of Adelaide, Adelaide, SA 5005, Australia.
| | - Huanyu Jin
- School of Chemical Engineering, University of Adelaide, Adelaide, SA 5005, Australia.
| | - Pengtang Wang
- School of Chemical Engineering, University of Adelaide, Adelaide, SA 5005, Australia.
| | - Xiaogang Sun
- School of Chemical Engineering, University of Adelaide, Adelaide, SA 5005, Australia.
| | - Mietek Jaroniec
- Department of Chemistry and Biochemistry & Advanced Materials and Liquid Crystal Institute, Kent State University, Kent, OH 44242, USA
| | - Yao Zheng
- School of Chemical Engineering, University of Adelaide, Adelaide, SA 5005, Australia.
| | - Shi-Zhang Qiao
- School of Chemical Engineering, University of Adelaide, Adelaide, SA 5005, Australia.
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4
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Couce PM, Madsen TK, Plaza-Mayoral E, Kristoffersen HH, Chorkendorff I, Dalby KN, van der Stam W, Rossmeisl J, Escudero-Escribano M, Sebastián-Pascual P. Tailoring the facet distribution on copper with chloride. Chem Sci 2024; 15:1714-1725. [PMID: 38303937 PMCID: PMC10829013 DOI: 10.1039/d3sc05988j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Accepted: 12/20/2023] [Indexed: 02/03/2024] Open
Abstract
Electrocatalytic reactions are sensitive to the catalyst surface structure. Therefore, finding methods to determine active surface sites with different geometry is essential to address the structure-electrocatalytic performance relationships. In this work, we propose a simple methodology to tune and quantify the surface structure on copper catalysts. We tailor the distribution and ratio of facets on copper by electrochemically oxidizing and reducing the surface in chloride-rich aqueous solutions. We then address the formation of new facets with voltammetric lead (Pb) underpotential deposition (UPD). We first record the voltammetric lead UPD on different single facets, which have intense peaks at different potential values. We use this data to decouple each facet peak-contribution in the lead (Pb) UPD curves of the tailored and multifaceted copper surfaces and determine the geometry of the active sites. We combine experiments with density functional theory (DFT) calculations to assess the ligand effect of chloride anions on the copper facet distribution during the surface oxidation/electrodeposition treatment. Our experiments and Wulff constructions suggest that chloride preferentially adsorbs on the (310) facet, reducing the number of (111) sites and inducing the growth of (310) or n(100) × (110) domains. Our work provides a tool to correlate active sites with copper geometries, which is needed to assess the structure-performance relationships in electrocatalysis. We also demonstrate an easy method for selectively tailoring the facet distribution of copper, which is essential to design a well-defined nanostructured catalyst.
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Affiliation(s)
- Pedro Mazaira Couce
- Department of Chemistry, Center for High Entropy Catalysis (CHEAC), University of Copenhagen Universitetsparken 5 2100 Copenhagen Denmark
| | - Thor Kongstad Madsen
- Department of Chemistry, Center for High Entropy Catalysis (CHEAC), University of Copenhagen Universitetsparken 5 2100 Copenhagen Denmark
| | - Elena Plaza-Mayoral
- Department of Chemistry, Center for High Entropy Catalysis (CHEAC), University of Copenhagen Universitetsparken 5 2100 Copenhagen Denmark
| | - Henrik H Kristoffersen
- Department of Chemistry, Center for High Entropy Catalysis (CHEAC), University of Copenhagen Universitetsparken 5 2100 Copenhagen Denmark
| | - Ib Chorkendorff
- Department of Physics, Surface Physics and Catalysis, Technical University of Denmark Fysikvej DK-2800 Lyngby Denmark
| | | | - Ward van der Stam
- Utrecht University, Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science Netherlands
| | - Jan Rossmeisl
- Department of Chemistry, Center for High Entropy Catalysis (CHEAC), University of Copenhagen Universitetsparken 5 2100 Copenhagen Denmark
| | - María Escudero-Escribano
- Department of Chemistry, Center for High Entropy Catalysis (CHEAC), University of Copenhagen Universitetsparken 5 2100 Copenhagen Denmark
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC, Barcelona Institute of Science and Technology UAB Campus, 08193 Bellaterra Barcelona Spain
- ICREA Pg. Lluís Companys 23 08010 Barcelona Spain
| | - Paula Sebastián-Pascual
- Department of Chemistry, Center for High Entropy Catalysis (CHEAC), University of Copenhagen Universitetsparken 5 2100 Copenhagen Denmark
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5
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Bischoff B, Bekheet MF, Dal Molin E, Praetz S, Kanngießer B, Schomäcker R, Etter M, Jeppesen HS, Tayal A, Gurlo A, Gili A. In situ/operando plug-flow fixed-bed cell for synchrotron PXRD and XAFS investigations at high temperature, pressure, controlled gas atmosphere and ultra-fast heating. JOURNAL OF SYNCHROTRON RADIATION 2024; 31:77-84. [PMID: 38010796 PMCID: PMC10833430 DOI: 10.1107/s1600577523009591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Accepted: 11/02/2023] [Indexed: 11/29/2023]
Abstract
A plug-flow fixed-bed cell for synchrotron powder X-ray diffraction (PXRD) and X-ray absorption fine structure (XAFS) idoneous for the study of heterogeneous catalysts at high temperature, pressure and under gas flow is designed, constructed and demonstrated. The operating conditions up to 1000°C and 50 bar are ensured by a set of mass flow controllers, pressure regulators and two infra-red lamps that constitute a robust and ultra-fast heating and cooling method. The performance of the system and cell for carbon dioxide hydrogenation reactions under specified temperatures, gas flows and pressures is demonstrated both for PXRD and XAFS at the P02.1 (PXRD) and the P64 (XAFS) beamlines of the Deutsches Elektronen-Synchrotron (DESY).
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Affiliation(s)
- Benjamin Bischoff
- Technische Universität Berlin, Faculty III Process Sciences, Institute of Materials Science and Technology, Chair of Advanced Ceramic Materials, Straße des 17 Juni 135, 10623 Berlin, Germany
| | - Maged F. Bekheet
- Technische Universität Berlin, Faculty III Process Sciences, Institute of Materials Science and Technology, Chair of Advanced Ceramic Materials, Straße des 17 Juni 135, 10623 Berlin, Germany
| | - Emiliano Dal Molin
- Technische Universität Berlin, Faculty III Process Sciences, Institute of Materials Science and Technology, Chair of Advanced Ceramic Materials, Straße des 17 Juni 135, 10623 Berlin, Germany
| | - Sebastian Praetz
- Technische Universität Berlin, Faculty III Process Sciences, Institute for Optic and Atomic Physics, Straße des 17 Juni 135, 10623 Berlin, Germany
| | - Birgit Kanngießer
- Technische Universität Berlin, Faculty III Process Sciences, Institute for Optic and Atomic Physics, Straße des 17 Juni 135, 10623 Berlin, Germany
| | - Reinhard Schomäcker
- Technische Universität Berlin, Faculty II Mathematik und Naturwissenschaften, Institut für Chemie, Straße des 17 Juni 135, 10623 Berlin, Germany
| | - Martin Etter
- Deutsches Elektronen-Synchrotron (DESY), Notkestrasse 85, 22607 Hamburg, Germany
| | - Henrik S. Jeppesen
- Deutsches Elektronen-Synchrotron (DESY), Notkestrasse 85, 22607 Hamburg, Germany
| | - Akhil Tayal
- Deutsches Elektronen-Synchrotron (DESY), Notkestrasse 85, 22607 Hamburg, Germany
| | - Aleksander Gurlo
- Technische Universität Berlin, Faculty III Process Sciences, Institute of Materials Science and Technology, Chair of Advanced Ceramic Materials, Straße des 17 Juni 135, 10623 Berlin, Germany
| | - Albert Gili
- Technische Universität Berlin, Faculty II Mathematik und Naturwissenschaften, Institut für Chemie, Straße des 17 Juni 135, 10623 Berlin, Germany
- Helmholtz-Zentrum Berlin für Materialien und Energie, 14109 Berlin, Germany
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6
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Chee SW, Lunkenbein T, Schlögl R, Roldán Cuenya B. Operando Electron Microscopy of Catalysts: The Missing Cornerstone in Heterogeneous Catalysis Research? Chem Rev 2023; 123:13374-13418. [PMID: 37967448 PMCID: PMC10722467 DOI: 10.1021/acs.chemrev.3c00352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 10/14/2023] [Accepted: 10/20/2023] [Indexed: 11/17/2023]
Abstract
Heterogeneous catalysis in thermal gas-phase and electrochemical liquid-phase chemical conversion plays an important role in our modern energy landscape. However, many of the structural features that drive efficient chemical energy conversion are still unknown. These features are, in general, highly distinct on the local scale and lack translational symmetry, and thus, they are difficult to capture without the required spatial and temporal resolution. Correlating these structures to their function will, conversely, allow us to disentangle irrelevant and relevant features, explore the entanglement of different local structures, and provide us with the necessary understanding to tailor novel catalyst systems with improved productivity. This critical review provides a summary of the still immature field of operando electron microscopy for thermal gas-phase and electrochemical liquid-phase reactions. It focuses on the complexity of investigating catalytic reactions and catalysts, progress in the field, and analysis. The forthcoming advances are discussed in view of correlative techniques, artificial intelligence in analysis, and novel reactor designs.
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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 Interface Science, Fritz-Haber Institute
of the Max-Planck Society, 14195 Berlin, Germany
| | - Beatriz Roldán Cuenya
- Department
of Interface Science, Fritz-Haber Institute
of the Max-Planck Society, 14195 Berlin, Germany
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7
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Groppo E, Rojas-Buzo S, Bordiga S. The Role of In Situ/ Operando IR Spectroscopy in Unraveling Adsorbate-Induced Structural Changes in Heterogeneous Catalysis. Chem Rev 2023; 123:12135-12169. [PMID: 37882638 PMCID: PMC10636737 DOI: 10.1021/acs.chemrev.3c00372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Indexed: 10/27/2023]
Abstract
Heterogeneous catalysts undergo thermal- and/or adsorbate-induced dynamic changes under reaction conditions, which consequently modify their catalytic behavior. Hence, it is increasingly crucial to characterize the properties of a catalyst under reaction conditions through the so-called "operando" approach. Operando IR spectroscopy is probably one of the most ubiquitous and versatile characterization methods in the field of heterogeneous catalysis, but its potential in identifying adsorbate- and thermal-induced phenomena is often overlooked in favor of other less accessible methods, such as XAS spectroscopy and high-resolution microscopy. Without detracting from these techniques, and while aware of the enormous value of a multitechnique approach, the purpose of this Review is to show that IR spectroscopy alone can provide relevant information in this field. This is done by discussing a few selected case studies from our own research experience, which belong to the categories of both "single-site"- and nanoparticle-based catalysts.
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Affiliation(s)
- Elena Groppo
- Department of Chemistry,
NIS Centre and INSTM, University of Torino, via Giuria 7, 10125 Turin, Italy
| | - Sergio Rojas-Buzo
- Department of Chemistry,
NIS Centre and INSTM, University of Torino, via Giuria 7, 10125 Turin, Italy
| | - Silvia Bordiga
- Department of Chemistry,
NIS Centre and INSTM, University of Torino, via Giuria 7, 10125 Turin, Italy
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8
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Abstract
Electrocatalytic conversion of carbon dioxide to valuable chemicals and fuels driven by renewable energy plays a crucial role in achieving net-zero carbon emissions. Understanding the structure-activity relationship and the reaction mechanism is significant for tuning electrocatalyst selectivity. Therefore, characterizing catalyst dynamic evolution and reaction intermediates under reaction conditions is necessary but still challenging. We first summarize the most recent progress in mechanistic understanding of heterogeneous CO2/CO reduction using in situ/operando techniques, including surface-enhanced vibrational spectroscopies, X-ray- and electron-based techniques, and mass spectroscopy, along with discussing remaining limitations. We then offer insights and perspectives to accelerate the future development of in situ/operando techniques.
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Affiliation(s)
- Bjorn Hasa
- Center for Catalytic Science and Technology, Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, Delaware, USA;
| | - Yaran Zhao
- BNU-HKUST Laboratory of Green Innovation, Advanced Institute of Natural Sciences, Beijing Normal University, Zhuhai, China
| | - Feng Jiao
- Center for Catalytic Science and Technology, Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, Delaware, USA;
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9
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Monai M, Jenkinson K, Melcherts AEM, Louwen JN, Irmak EA, Van Aert S, Altantzis T, Vogt C, van der Stam W, Duchoň T, Šmíd B, Groeneveld E, Berben P, Bals S, Weckhuysen BM. Restructuring of titanium oxide overlayers over nickel nanoparticles during catalysis. Science 2023; 380:644-651. [PMID: 37167405 DOI: 10.1126/science.adf6984] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Reducible supports can affect the performance of metal catalysts by the formation of suboxide overlayers upon reduction, a process referred to as the strong metal-support interaction (SMSI). A combination of operando electron microscopy and vibrational spectroscopy revealed that thin TiOx overlayers formed on nickel/titanium dioxide catalysts during 400°C reduction were completely removed under carbon dioxide hydrogenation conditions. Conversely, after 600°C reduction, exposure to carbon dioxide hydrogenation reaction conditions led to only partial reexposure of nickel, forming interfacial sites in contact with TiOx and favoring carbon-carbon coupling by providing a carbon species reservoir. Our findings challenge the conventional understanding of SMSIs and call for more-detailed operando investigations of nanocatalysts at the single-particle level to revisit static models of structure-activity relationships.
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Affiliation(s)
- Matteo Monai
- Inorganic Chemistry and Catalysis Group, Institute for Sustainable and Circular Chemistry and Debye Institute for Nanomaterials Science, Utrecht University, 3584 CG Utrecht, Netherlands
| | - Kellie Jenkinson
- EMAT and NANOlab Center of Excellence, University of Antwerp, 2020 Antwerp, Belgium
| | - Angela E M Melcherts
- Inorganic Chemistry and Catalysis Group, Institute for Sustainable and Circular Chemistry and Debye Institute for Nanomaterials Science, Utrecht University, 3584 CG Utrecht, Netherlands
| | - Jaap N Louwen
- Inorganic Chemistry and Catalysis Group, Institute for Sustainable and Circular Chemistry and Debye Institute for Nanomaterials Science, Utrecht University, 3584 CG Utrecht, Netherlands
| | - Ece A Irmak
- EMAT and NANOlab Center of Excellence, University of Antwerp, 2020 Antwerp, Belgium
| | - Sandra Van Aert
- EMAT and NANOlab Center of Excellence, University of Antwerp, 2020 Antwerp, Belgium
| | | | - Charlotte Vogt
- Inorganic Chemistry and Catalysis Group, Institute for Sustainable and Circular Chemistry and Debye Institute for Nanomaterials Science, Utrecht University, 3584 CG Utrecht, Netherlands
| | - Ward van der Stam
- Inorganic Chemistry and Catalysis Group, Institute for Sustainable and Circular Chemistry and Debye Institute for Nanomaterials Science, Utrecht University, 3584 CG Utrecht, Netherlands
| | - Tomáš Duchoň
- Peter-Grünberg-Institut 6, Forschungszentrum Jülich GmbH, 52425 Jülich, Germany
| | - Břetislav Šmíd
- Department of Surface and Plasma Science, Faculty of Mathematics and Physics, Charles University, 180 00 Prague, Czech Republic
| | | | - Peter Berben
- BASF Nederland B.V., 3454 PK De Meern, Netherlands
| | - Sara Bals
- EMAT and NANOlab Center of Excellence, University of Antwerp, 2020 Antwerp, Belgium
| | - Bert M Weckhuysen
- Inorganic Chemistry and Catalysis Group, Institute for Sustainable and Circular Chemistry and Debye Institute for Nanomaterials Science, Utrecht University, 3584 CG Utrecht, Netherlands
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10
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Taseska T, Yu W, Wilsey MK, Cox CP, Meng Z, Ngarnim SS, Müller AM. Analysis of the Scale of Global Human Needs and Opportunities for Sustainable Catalytic Technologies. Top Catal 2023; 66:338-374. [PMID: 37025115 PMCID: PMC10007685 DOI: 10.1007/s11244-023-01799-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/20/2023] [Indexed: 03/13/2023]
Abstract
AbstractWe analyzed the enormous scale of global human needs, their carbon footprint, and how they are connected to energy availability. We established that most challenges related to resource security and sustainability can be solved by providing distributed, affordable, and clean energy. Catalyzed chemical transformations powered by renewable electricity are emerging successor technologies that have the potential to replace fossil fuels without sacrificing the wellbeing of humans. We highlighted the technical, economic, and societal advantages and drawbacks of short- to medium-term decarbonization solutions to gauge their practicability, economic feasibility, and likelihood for widespread acceptance on a global scale. We detailed catalysis solutions that enhance sustainability, along with strategies for catalyst and process development, frontiers, challenges, and limitations, and emphasized the need for planetary stewardship. Electrocatalytic processes enable the production of solar fuels and commodity chemicals that address universal issues of the water, energy and food security nexus, clothing, the building sector, heating and cooling, transportation, information and communication technology, chemicals, consumer goods and services, and healthcare, toward providing global resource security and sustainability and enhancing environmental and social justice.
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Affiliation(s)
- Teona Taseska
- Department of Chemical Engineering, University of Rochester, 14627 Rochester, NY USA
| | - Wanqing Yu
- Department of Chemical Engineering, University of Rochester, 14627 Rochester, NY USA
| | | | - Connor P. Cox
- Materials Science Program, University of Rochester, 14627 Rochester, NY USA
| | - Ziyi Meng
- Materials Science Program, University of Rochester, 14627 Rochester, NY USA
| | - Soraya S. Ngarnim
- Department of Chemistry, University of Rochester, 14627 Rochester, NY USA
| | - Astrid M. Müller
- Department of Chemical Engineering, University of Rochester, 14627 Rochester, NY USA
- Materials Science Program, University of Rochester, 14627 Rochester, NY USA
- Department of Chemistry, University of Rochester, 14627 Rochester, NY USA
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11
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Wang L, Ore RM, Jayamaha PK, Wu ZP, Zhong CJ. Density functional theory based computational investigations on the stability of highly active trimetallic PtPdCu nanoalloys for electrochemical oxygen reduction. Faraday Discuss 2023; 242:429-442. [PMID: 36173024 DOI: 10.1039/d2fd00101b] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Activity, cost, and durability are the trinity of catalysis research for the electrochemical oxygen reduction reaction (ORR). While studies towards increasing activity and reducing cost of ORR catalysts have been carried out extensively, much effort is needed in durability investigation of highly active ORR catalysts. In this work, we examined the stability of a trimetallic PtPdCu catalyst that has demonstrated high activity and incredible durability during ORR using density functional theory (DFT) based computations. Specifically, we studied the processes of dissolution/deposition and diffusion between the surface and inner layer of Cu species of Pt20Pd20Cu60 catalysts at electrode potentials up to 1.2 V to understand their role towards stabilizing Pt20Pd20Cu60 catalysts. The results show there is a dynamic Cu surface composition range that is dictated by the interplay of the four processes, dissolution, deposition, diffusion from the surface to inner layer, and diffusion from the inner layer to the surface of Cu species, in the stability and observed oscillation of lattice constants of Cu-rich PtPdCu nanoalloys.
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Affiliation(s)
- Lichang Wang
- School of Chemical and Biomolecular Sciences and the Materials Technology Center, Southern Illinois University, Carbondale, IL 62901, USA.
| | - Rotimi M Ore
- School of Chemical and Biomolecular Sciences and the Materials Technology Center, Southern Illinois University, Carbondale, IL 62901, USA.
| | - Peshala K Jayamaha
- School of Chemical and Biomolecular Sciences and the Materials Technology Center, Southern Illinois University, Carbondale, IL 62901, USA.
| | - Zhi-Peng Wu
- Department of Chemistry, State University of New York at Binghamton, Binghamton, NY 13902, USA
| | - Chuan-Jian Zhong
- Department of Chemistry, State University of New York at Binghamton, Binghamton, NY 13902, USA
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12
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Sterk E, Nieuwelink AE, Monai M, Louwen JN, Vogt ETC, Filot IAW, Weckhuysen BM. Structure Sensitivity of CO 2 Conversion over Nickel Metal Nanoparticles Explained by Micro-Kinetics Simulations. JACS AU 2022; 2:2714-2730. [PMID: 36590272 PMCID: PMC9795468 DOI: 10.1021/jacsau.2c00430] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 09/24/2022] [Accepted: 09/27/2022] [Indexed: 05/21/2023]
Abstract
Nickel metal nanoparticles are intensively researched for the catalytic conversion of carbon dioxide. They are commercially explored in the so-called power-to-methane application in which renewably resourced H2 reacts with CO2 to produce CH4, which is better known as the Sabatier reaction. Previous work has shown that this reaction is structure-sensitive. For instance, Ni/SiO2 catalysts reveal a maximum performance when nickel metal nanoparticles of ∼2-3 nm are used. Particularly important to a better understanding of the structure sensitivity of the Sabatier reaction over nickel-based catalysts is to understand all relevant elementary reaction steps over various nickel metal facets because this will tell as to which type of nickel facets and which elementary reaction steps are crucial for designing an efficient nickel-based methanation catalyst. In this work, we have determined by density functional theory (DFT) calculations and micro-kinetics modeling (MKM) simulations that the two terrace facets Ni(111) and Ni(100) and the stepped facet Ni(211) barely show any activity in CO2 methanation. The stepped facet Ni(110) turned out to be the most effective in CO2 methanation. Herein, it was found that the dominant kinetic route corresponds to a combination of the carbide and formate reaction pathways. It was found that the dissociation of H2CO* toward CH2* and O* is the most critical elementary reaction step on this Ni(110) facet. The calculated activity of a range of Wulff-constructed nickel metal nanoparticles, accounting for varying ratios of the different facets and undercoordinated atoms exposed, reveals the same trend of activity-versus-nanoparticle size, as was observed in previous experimental work from our research group, thereby providing an explanation for the structure-sensitive nature of the Sabatier reaction.
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Affiliation(s)
- Ellen
B. Sterk
- Inorganic
Chemistry and Catalysis Group, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CGUtrecht, The Netherlands
| | - Anne-Eva Nieuwelink
- Inorganic
Chemistry and Catalysis Group, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CGUtrecht, The Netherlands
| | - Matteo Monai
- Inorganic
Chemistry and Catalysis Group, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CGUtrecht, The Netherlands
| | - Jaap N. Louwen
- Inorganic
Chemistry and Catalysis Group, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CGUtrecht, The Netherlands
| | - Eelco T. C. Vogt
- Inorganic
Chemistry and Catalysis Group, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CGUtrecht, The Netherlands
| | - Ivo A. W. Filot
- Schuit
Institute of Catalysis, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MBEindhoven, The Netherlands
| | - Bert M. Weckhuysen
- Inorganic
Chemistry and Catalysis Group, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CGUtrecht, The Netherlands
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13
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Single Metal Atoms Embedded in the Surface of Pt Nanocatalysts: The Effect of Temperature and Hydrogen Pressure. Catalysts 2022. [DOI: 10.3390/catal12121669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Embedding energetically stable single metal atoms in the surface of Pt nanocatalysts exposed to varied temperature (T) and hydrogen pressure (P) could open up new possibilities in selective and dynamical engineering of alloyed Pt catalysts, particularly interesting for hydrogenation reactions. In this work, an environmental segregation energy model is developed to predict the stability and the surface composition evolution of 24 Metal M-promoted Pt surfaces (with M: Cu, Ag, Au, Ni, Pd, Co, Rh and Ir) under varied T and P. Counterintuitive to expectations, the results show that the more reactive alloy component (i.e., the one forming the strongest chemical bond with the hydrogen) is not the one that segregates to the surface. Moreover, using DFT-based Multi-Scaled Reconstruction (MSR) method and by extrapolation of M-promoted Pt nanoparticles (NPs), the shape dynamics of M-Pt are investigated under the same ranges of T and P. The results show that under low hydrogen pressure and high temperature ranges, Ag and Au—single atoms (and Cu to a less extent) are energetically stable on the surface of truncated octahedral and/or cuboctahedral shaped NPs. This indicated that coinage single-atoms might be used to tune the catalytic properties of Pt surface under hydrogen media. In contrast, bulk stability within wide range of temperature and pressure is predicted for all other M-single atoms, which might act as bulk promoters. This work provides insightful guides and understandings of M-promoted Pt NPs by predicting both the evolution of the shape and the surface compositions under reaction gas condition.
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14
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Zhao H, Zhu Y, Ye H, He Y, Li H, Sun Y, Yang F, Wang R. Atomic-Scale Structure Dynamics of Nanocrystals Revealed By In Situ and Environmental Transmission Electron Microscopy. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022:e2206911. [PMID: 36153832 DOI: 10.1002/adma.202206911] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 09/05/2022] [Indexed: 06/16/2023]
Abstract
Nanocrystals are of great importance in material sciences and industry. Engineering nanocrystals with desired structures and properties is no doubt one of the most important challenges in the field, which requires deep insight into atomic-scale dynamics of nanocrystals during the process. The rapid developments of in situ transmission electron microscopy (TEM), especially environmental TEM, reveal insights into nanocrystals to digest. According to the considerable progress based on in situ electron microscopy, a comprehensive review on nanocrystal dynamics from three aspects: nucleation and growth, structure evolution, and dynamics in reaction conditions are given. In the nucleation and growth part, existing nucleation theories and growth pathways are organized based on liquid and gas-solid phases. In the structure evolution part, the focus is on in-depth mechanistic understanding of the evolution, including defects, phase, and disorder/order transitions. In the part of dynamics in reaction conditions, solid-solid and gas-solid interfaces of nanocrystals in atmosphere are discussed and the structure-property relationship is correlated. Even though impressive progress is made, additional efforts are required to develop the integrated and operando TEM methodologies for unveiling nanocrystal dynamics with high spatial, energy, and temporal resolutions.
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Affiliation(s)
- Haofei Zhao
- Beijing Advanced Innovation Center for Materials Genome Engineering, University of Science and Technology Beijing, Beijing, 100083, China
- Beijing Key Laboratory for Magneto-Photoelectrical Composite and Interface Science, School of Mathematics and Physics, University of Science and Technology Beijing, Beijing, 100083, China
| | - Yuchen Zhu
- Beijing Advanced Innovation Center for Materials Genome Engineering, University of Science and Technology Beijing, Beijing, 100083, China
- Beijing Key Laboratory for Magneto-Photoelectrical Composite and Interface Science, School of Mathematics and Physics, University of Science and Technology Beijing, Beijing, 100083, China
| | - Huanyu Ye
- Beijing Advanced Innovation Center for Materials Genome Engineering, University of Science and Technology Beijing, Beijing, 100083, China
- Beijing Key Laboratory for Magneto-Photoelectrical Composite and Interface Science, School of Mathematics and Physics, University of Science and Technology Beijing, Beijing, 100083, China
| | - Yang He
- Beijing Advanced Innovation Center for Materials Genome Engineering, University of Science and Technology Beijing, Beijing, 100083, China
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Hao Li
- Beijing Advanced Innovation Center for Materials Genome Engineering, University of Science and Technology Beijing, Beijing, 100083, China
- Beijing Key Laboratory for Magneto-Photoelectrical Composite and Interface Science, School of Mathematics and Physics, University of Science and Technology Beijing, Beijing, 100083, China
| | - Yifei Sun
- Beijing Advanced Innovation Center for Materials Genome Engineering, University of Science and Technology Beijing, Beijing, 100083, China
- Beijing Key Laboratory for Magneto-Photoelectrical Composite and Interface Science, School of Mathematics and Physics, University of Science and Technology Beijing, Beijing, 100083, China
| | - Feng Yang
- Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Rongming Wang
- Beijing Advanced Innovation Center for Materials Genome Engineering, University of Science and Technology Beijing, Beijing, 100083, China
- Beijing Key Laboratory for Magneto-Photoelectrical Composite and Interface Science, School of Mathematics and Physics, University of Science and Technology Beijing, Beijing, 100083, China
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15
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Cao X, Han YF, Peng C, Zhu M. A Review on the Water‐Gas Shift Reaction over Nickel‐Based Catalysts. ChemCatChem 2022. [DOI: 10.1002/cctc.202200190] [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)
- Xinyu Cao
- East China University of Science and Technology School of Chemical Engineering CHINA
| | - Yi-Fan Han
- East China University of Science and Technology School of Chemical Engineering CHINA
| | - Chong Peng
- Sinopec: China Petrochemical Corporation School of Chemical Engineering CHINA
| | - Minghui Zhu
- East China University of Science and Technology Department of Chemical Engineering 130 Meilong Road 200237 Shanghai CHINA
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16
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Poths P, Alexandrova AN. Theoretical Perspective on Operando Spectroscopy of Fluxional Nanocatalysts. J Phys Chem Lett 2022; 13:4321-4334. [PMID: 35536346 DOI: 10.1021/acs.jpclett.2c00628] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Improvements in operando spectroscopy have enabled the catalysis community to investigate the dynamic nature of catalysts under operating conditions with increasing detail. Still, the highly dynamic nature of some catalysts, such as fluxional supported subnano clusters, presents a formidable challenge even for the most state-of-the-art techniques. The reason is that such fluxional catalytic interfaces contain a variety of thermally accessible states. Operando spectroscopies used in catalysis generally fall into two categories: ensemble-based techniques, which provide spectra containing the signals of the entire ensemble of states of the catalyst and are not necessarily dominated by the most active species, and localized techniques, which provide atomistic-level information about the dynamics of active sites in a very small area, which might not include the most active species. Combining many different kinds of techniques can provide detailed insight; however, we propose that effective utilization of specific computational techniques and approaches within the fluxionality paradigm can fill the gap and enable atomistic characterization of the most relevant catalytic sites.
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Affiliation(s)
- Patricia Poths
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, California 90095-1569, United States
| | - Anastassia N Alexandrova
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, California 90095-1569, United States
- California NanoSystems Institute, Los Angeles, California 90095, United States
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17
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Electrochemical synthesis of catalytic materials for energy catalysis. CHINESE JOURNAL OF CATALYSIS 2022. [DOI: 10.1016/s1872-2067(21)63940-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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18
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Wiegmann T, Pacheco I, Reikowski F, Stettner J, Qiu C, Bouvier M, Bertram M, Faisal F, Brummel O, Libuda J, Drnec J, Allongue P, Maroun F, Magnussen OM. Operando Identification of the Reversible Skin Layer on Co 3O 4 as a Three-Dimensional Reaction Zone for Oxygen Evolution. ACS Catal 2022; 12:3256-3268. [PMID: 35359579 PMCID: PMC8939430 DOI: 10.1021/acscatal.1c05169] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 01/06/2022] [Indexed: 01/19/2023]
Abstract
![]()
Co oxides and oxyhydroxides
have been studied extensively in the
past as promising electrocatalysts for the oxygen evolution reaction
(OER) in neutral to alkaline media. Earlier studies showed the formation
of an ultrathin CoOx(OH)y skin layer on Co3O4 at potentials
above 1.15 V vs reversible hydrogen electrode (RHE), but the precise
influence of this skin layer on the OER reactivity is still under
debate. We present here a systematic study of epitaxial spinel-type
Co3O4 films with defined (111) orientation,
prepared on different substrates by electrodeposition or physical
vapor deposition. The OER overpotential of these samples may vary
up to 120 mV, corresponding to two orders of magnitude differences
in current density, which cannot be accounted for by differences in
the electrochemically active surface area. We demonstrate by a careful
analysis of operando surface X-ray diffraction measurements
that these differences are clearly correlated with the average thickness
of the skin layer. The OER reactivity increases with the amount of
formed skin layer, indicating that the entire three-dimensional skin
layer is an OER-active interphase. Furthermore, a scaling relationship
between the reaction centers in the skin layer and the OER activity
is established. It suggests that two lattice sites are involved in
the OER mechanism.
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Affiliation(s)
- Tim Wiegmann
- Institute of Experimental and Applied Physics, Kiel University, 24118 Kiel, Germany
| | - Ivan Pacheco
- Laboratoire de Physique de la Matière Condensée (PMC), CNRS, Ecole Polytechnique, Institut Polytechnique de Paris, 91120 Palaiseau, France
| | - Finn Reikowski
- Institute of Experimental and Applied Physics, Kiel University, 24118 Kiel, Germany
| | - Jochim Stettner
- Institute of Experimental and Applied Physics, Kiel University, 24118 Kiel, Germany
| | - Canrong Qiu
- Institute of Experimental and Applied Physics, Kiel University, 24118 Kiel, Germany
| | - Mathilde Bouvier
- Laboratoire de Physique de la Matière Condensée (PMC), CNRS, Ecole Polytechnique, Institut Polytechnique de Paris, 91120 Palaiseau, France
| | - Manon Bertram
- Interface Research and Catalysis, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Firas Faisal
- Interface Research and Catalysis, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Olaf Brummel
- Interface Research and Catalysis, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Jörg Libuda
- Interface Research and Catalysis, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Jakub Drnec
- European Synchrotron Radiation Facility, 38000 Grenoble, France
| | - Philippe Allongue
- Laboratoire de Physique de la Matière Condensée (PMC), CNRS, Ecole Polytechnique, Institut Polytechnique de Paris, 91120 Palaiseau, France
| | - Fouad Maroun
- Laboratoire de Physique de la Matière Condensée (PMC), CNRS, Ecole Polytechnique, Institut Polytechnique de Paris, 91120 Palaiseau, France
| | - Olaf M. Magnussen
- Institute of Experimental and Applied Physics, Kiel University, 24118 Kiel, Germany
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19
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Wang Z, Ke X, Sui M. Recent Progress on Revealing 3D Structure of Electrocatalysts Using Advanced 3D Electron Tomography: A Mini Review. Front Chem 2022; 10:872117. [PMID: 35355785 PMCID: PMC8959462 DOI: 10.3389/fchem.2022.872117] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 02/21/2022] [Indexed: 11/13/2022] Open
Abstract
Electrocatalysis plays a key role in clean energy innovation. In order to design more efficient, durable and selective electrocatalysts, a thorough understanding of the unique link between 3D structures and properties is essential yet challenging. Advanced 3D electron tomography offers an effective approach to reveal 3D structures by transmission electron microscopy. This mini-review summarizes recent progress on revealing 3D structures of electrocatalysts using 3D electron tomography. 3D electron tomography at nanoscale and atomic scale are discussed, respectively, where morphology, composition, porous structure, surface crystallography and atomic distribution can be revealed and correlated to the performance of electrocatalysts. (Quasi) in-situ 3D electron tomography is further discussed with particular focus on its impact on electrocatalysts’ durability investigation and post-treatment. Finally, perspectives on future developments of 3D electron tomography for eletrocatalysis is discussed.
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Affiliation(s)
| | - Xiaoxing Ke
- *Correspondence: Xiaoxing Ke, ; Manling Sui,
| | - Manling Sui
- *Correspondence: Xiaoxing Ke, ; Manling Sui,
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20
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Deep learning detection of nanoparticles and multiple object tracking of their dynamic evolution during in situ ETEM studies. Sci Rep 2022; 12:2484. [PMID: 35169206 PMCID: PMC8847623 DOI: 10.1038/s41598-022-06308-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Accepted: 01/24/2022] [Indexed: 11/08/2022] Open
Abstract
In situ transmission electron microscopy (TEM) studies of dynamic events produce large quantities of data especially under the form of images. In the important case of heterogeneous catalysis, environmental TEM (ETEM) under gas and temperature allows to follow a large population of supported nanoparticles (NPs) evolving under reactive conditions. Interpreting properly large image sequences gives precious information on the catalytic properties of the active phase by identifying causes for its deactivation. To perform a quantitative, objective and robust treatment, we propose an automatic procedure to track nanoparticles observed in Scanning ETEM (STEM in ETEM). Our approach involves deep learning and computer vision developments in multiple object tracking. At first, a registration step corrects the image displacements and misalignment inherent to the in situ acquisition. Then, a deep learning approach detects the nanoparticles on all frames of video sequences. Finally, an iterative tracking algorithm reconstructs their trajectories. This treatment allows to deduce quantitative and statistical features about their evolution or motion, such as a Brownian behavior and merging or crossing events. We treat the case of in situ calcination of palladium (oxide) / delta-alumina, where the present approach allows a discussion of operating processes such as Ostwald ripening or NP aggregative coalescence.
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21
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Liu X, Chen L, Wu Y, Zhang X, Chambaud G, Han Y, Meng C. Pd Speciation on Black Phosphorene in CO and C2H4 Atmosphere: A First-principles Investigation. Phys Chem Chem Phys 2022; 24:14284-14293. [DOI: 10.1039/d2cp01726a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Deposited transition metal clusters and nanoparticles are widely used as catalysts and have long been thought stable in reaction conditions. We investigated the electronic structure and stability of freestanding and...
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22
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He W, Xiang Y, Xin M, Qiu L, Dong W, Zhao W, Diao Y, Zheng A, Xu G. Investigation of multiple commercial electrocatalysts and electrocatalyst degradation for fuel cells in real vehicles. RSC Adv 2022; 12:32374-32382. [DOI: 10.1039/d2ra05682h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Accepted: 10/30/2022] [Indexed: 11/13/2022] Open
Abstract
The coalescence of Pt nanoparticles during operation in a real vehicle is considered to be the main reason to weaken the ORR. The trajectories of oriented attachment were disclosed by observing the coalescence events of Pt NPs using in situ TEM.
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Affiliation(s)
- Wenhui He
- SINOPEC Research Institute of Petroleum Processing Co., Ltd., Beijing 100083, China
| | - Yanjuan Xiang
- SINOPEC Research Institute of Petroleum Processing Co., Ltd., Beijing 100083, China
| | - Mudi Xin
- SINOPEC Research Institute of Petroleum Processing Co., Ltd., Beijing 100083, China
| | - Limei Qiu
- SINOPEC Research Institute of Petroleum Processing Co., Ltd., Beijing 100083, China
| | - Wenyan Dong
- SINOPEC Research Institute of Petroleum Processing Co., Ltd., Beijing 100083, China
| | - Wenhui Zhao
- SINOPEC Research Institute of Petroleum Processing Co., Ltd., Beijing 100083, China
| | - Yuxia Diao
- SINOPEC Research Institute of Petroleum Processing Co., Ltd., Beijing 100083, China
| | - Aiguo Zheng
- SINOPEC Research Institute of Petroleum Processing Co., Ltd., Beijing 100083, China
| | - Guangtong Xu
- SINOPEC Research Institute of Petroleum Processing Co., Ltd., Beijing 100083, China
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23
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Lavroff RH, Morgan HWT, Zhang Z, Poths P, Alexandrova AN. Ensemble representation of catalytic interfaces: soloists, orchestras, and everything in-between. Chem Sci 2022; 13:8003-8016. [PMID: 35919426 PMCID: PMC9278157 DOI: 10.1039/d2sc01367c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Accepted: 05/23/2022] [Indexed: 11/21/2022] Open
Abstract
Catalytic systems are complex and dynamic, exploring vast chemical spaces on multiple timescales. In this perspective, we discuss the dynamic behavior of fluxional, heterogeneous thermal and electrocatalysts and the ensembles of many isomers which govern their behavior. We develop a new paradigm in catalysis theory in which highly fluxional systems, namely sub-nano clusters, isomerize on a much shorter timescale than that of the catalyzed reaction, so macroscopic properties arise from the thermal ensemble of isomers, not just the ground state. Accurate chemical predictions can only be reached through a many-structure picture of the catalyst, and we explain the breakdown of conventional methods such as linear scaling relations and size-selected prevention of sintering. We capitalize on the forward-looking discussion of the means of controlling the size of these dynamic ensembles. This control, such that the most effective or selective isomers can dominate the system, is essential for the fluxional catalyst to be practicable, and their targeted synthesis to be possible. It will also provide a fundamental lever of catalyst design. Finally, we discuss computational tools and experimental methods for probing ensembles and the role of specific isomers. We hope that catalyst optimization using chemically informed descriptors of ensemble nature and size will become a new norm in the field of catalysis and have broad impacts in sustainable energy, efficient chemical production, and more. Catalytic systems are complex and dynamic, exploring vast chemical spaces on multiple timescales.![]()
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Affiliation(s)
- Robert H Lavroff
- Department of Chemistry and Biochemistry, University of California, Los Angeles Los Angeles California 90095-1569 USA
| | - Harry W T Morgan
- Department of Chemistry and Biochemistry, University of California, Los Angeles Los Angeles California 90095-1569 USA
| | - Zisheng Zhang
- Department of Chemistry and Biochemistry, University of California, Los Angeles Los Angeles California 90095-1569 USA
| | - Patricia Poths
- Department of Chemistry and Biochemistry, University of California, Los Angeles Los Angeles California 90095-1569 USA
| | - Anastassia N Alexandrova
- Department of Chemistry and Biochemistry, University of California, Los Angeles Los Angeles California 90095-1569 USA
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24
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Tracking the phase changes in micelle-based NiGa nanocatalysts for methanol synthesis under activation and working conditions. J Catal 2022. [DOI: 10.1016/j.jcat.2021.11.024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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25
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26
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Chattot R, Martens I, Mirolo M, Ronovsky M, Russello F, Isern H, Braesch G, Hornberger E, Strasser P, Sibert E, Chatenet M, Honkimäki V, Drnec J. Electrochemical Strain Dynamics in Noble Metal Nanocatalysts. J Am Chem Soc 2021; 143:17068-17078. [PMID: 34623136 DOI: 10.1021/jacs.1c06780] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
The theoretical design of effective metal electrocatalysts for energy conversion and storage devices relies greatly on supposed unilateral effects of catalysts structure on electrocatalyzed reactions. Here, by using high-energy X-ray diffraction from the new Extremely Brilliant Source of the European Synchrotron Radiation Facility (ESRF-EBS) on device-relevant Pd and Pt nanocatalysts during cyclic voltammetry experiments in liquid electrolytes, we reveal the near ubiquitous feedback from various electrochemical processes on nanocatalyst strain. Beyond challenging and extending the current understanding of practical nanocatalysts behavior in electrochemical environment, the reported electrochemical strain provides experimental access to nanocatalysts absorption and adsorption trends (i.e., reactivity and stability descriptors) operando. The ease and power in monitoring such key catalyst properties at new and future beamlines is foreseen to provide a discovery platform toward the study of nanocatalysts encompassing a large variety of applications, from model environments to the device level.
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Affiliation(s)
- Raphaël Chattot
- European Synchrotron Radiation Facility, ID 31 Beamline, BP 220, 38043 Grenoble, France
| | - Isaac Martens
- European Synchrotron Radiation Facility, ID 31 Beamline, BP 220, 38043 Grenoble, France
| | - Marta Mirolo
- European Synchrotron Radiation Facility, ID 31 Beamline, BP 220, 38043 Grenoble, France
| | - Michal Ronovsky
- European Synchrotron Radiation Facility, ID 31 Beamline, BP 220, 38043 Grenoble, France
| | - Florian Russello
- European Synchrotron Radiation Facility, ID 31 Beamline, BP 220, 38043 Grenoble, France
| | - Helena Isern
- European Synchrotron Radiation Facility, ID 31 Beamline, BP 220, 38043 Grenoble, France
| | - Guillaume Braesch
- Univ. Grenoble Alpes, Univ. Savoie Mont Blanc, CNRS, Grenoble INP, LEPMI, 38000 Grenoble, France
| | - Elisabeth Hornberger
- Electrochemical Energy, Catalysis and Material Science Laboratory, Department of Chemistry, Technische Universität Berlin, 10623 Berlin, Germany
| | - Peter Strasser
- Electrochemical Energy, Catalysis and Material Science Laboratory, Department of Chemistry, Technische Universität Berlin, 10623 Berlin, Germany
| | - Eric Sibert
- Univ. Grenoble Alpes, Univ. Savoie Mont Blanc, CNRS, Grenoble INP, LEPMI, 38000 Grenoble, France
| | - Marian Chatenet
- Univ. Grenoble Alpes, Univ. Savoie Mont Blanc, CNRS, Grenoble INP, LEPMI, 38000 Grenoble, France
| | - Veijo Honkimäki
- European Synchrotron Radiation Facility, ID 31 Beamline, BP 220, 38043 Grenoble, France
| | - Jakub Drnec
- European Synchrotron Radiation Facility, ID 31 Beamline, BP 220, 38043 Grenoble, France
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27
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Lisitsyn AS, Kadtsyna AS. Strong response of Pt clusters to the environment and conditions, formation of metastable states, and simple methods to trace the reversible changes. Phys Chem Chem Phys 2021; 23:22718-22732. [PMID: 34605497 DOI: 10.1039/d1cp01484f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Subnanometric metal particles, the so-called "clusters", are known to be responsive to their surroundings, but the detection of occurring changes, understanding the causes, and predicting the consequences are still extremely difficult for such small particles. Our study was aimed at estimating the potential of adsorption-based methods for these purposes. Using carbon monoxide as a probing molecule, which readily adsorbs on both bare and H-covered Pt surface, we have probed the adsorption properties of highly dispersed Pt/γ-Al2O3 samples after treatments under different atmospheres and temperatures (H2 or inert gas, 25-500 °C). The combined results of CO-chemisorption measurements, CO TPD, CO TPO, H2-by-CO displacement, and H2 TPD suggest that the system shuttles between two states: one with oxygen vacancies in the support and the other one with redox-active oxygen near the Pt clusters. These extreme states can be reversibly created and deleted, giving rise to innumerable intermediate structures that differ in the amount, binding strength, and/or reactivity of adsorbed species. Two adsorbates could act cooperatively, resulting in hydrogen spillover onto the support and making the adsorbate-metal-support interactions even more complex. Implications for better understanding the dynamic behavior of oxide-supported clusters and nanoparticles are discussed.
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Barlocco I, Capelli S, Lu X, Bellomi S, Huang X, Wang D, Prati L, Dimitratos N, Roldan A, Villa A. Disclosing the Role of Gold on Palladium – Gold Alloyed Supported Catalysts in Formic Acid Decomposition. ChemCatChem 2021. [DOI: 10.1002/cctc.202100886] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ilaria Barlocco
- Dipartimento di Chimica Università degli Studi di Milano Via Golgi 19 20133 Milano Italy
| | - Sofia Capelli
- Dipartimento di Chimica Università degli Studi di Milano Via Golgi 19 20133 Milano Italy
| | - Xiuyuan Lu
- Cardiff Catalysis Institute School of Chemistry Cardiff University Main Building, Park Place CF10 3AT Cardiff United Kingdom
| | - Silvio Bellomi
- Dipartimento di Chimica Università degli Studi di Milano Via Golgi 19 20133 Milano Italy
| | - Xiaohui Huang
- Institute of Nanotechnology Karlsruhe Institute of Technology Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
| | - Di Wang
- Institute of Nanotechnology Karlsruhe Institute of Technology Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
- Karlsruhe Nano Micro Facility (KNMF) Karlsruhe Institute of Technology Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
| | - Laura Prati
- Dipartimento di Chimica Università degli Studi di Milano Via Golgi 19 20133 Milano Italy
| | - Nikolaos Dimitratos
- Dipartimento di Chimica Industriale e dei Materiali ALMA MATER STUDIORUM Università di Bologna Viale Risorgimento 4 40136 Bologna Italy
| | - Alberto Roldan
- Cardiff Catalysis Institute School of Chemistry Cardiff University Main Building, Park Place CF10 3AT Cardiff United Kingdom
| | - Alberto Villa
- Dipartimento di Chimica Università degli Studi di Milano Via Golgi 19 20133 Milano Italy
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Devadas B, Periasamy AP, Bouzek K. A review on poly(amidoamine) dendrimer encapsulated nanoparticles synthesis and usage in energy conversion and storage applications. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.214062] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Alizadehfanaloo S, Garrevoet J, Seyrich M, Murzin V, Becher J, Doronkin DE, Sheppard TL, Grunwaldt JD, Schroer CG, Schropp A. Tracking dynamic structural changes in catalysis by rapid 2D-XANES microscopy. JOURNAL OF SYNCHROTRON RADIATION 2021; 28:1518-1527. [PMID: 34475299 PMCID: PMC8415324 DOI: 10.1107/s1600577521007074] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 07/09/2021] [Indexed: 05/22/2023]
Abstract
Many processes and materials in heterogeneous catalysis undergo dynamic structural changes depending on their chemical environment. Monitoring such dynamic changes can be challenging using conventional spectroscopic characterization tools, due to the high time resolution required. Here, a high-resolution 2D X-ray camera operating at 50 Hz full-frame rate was synchronized with a QEXAFS monochromator, enabling rapid spectro-microscopic imaging with chemical contrast over individual pixels. This was used to monitor chemical gradients within a model Pt/Al2O3 catalyst during catalytic partial oxidation of methane to synthesis gas. The transition from methane combustion (partly oxidized Pt) to combustion-reforming and partial oxidation (fully reduced Pt) was observed by a characteristic reduction front, which progressed from the end of the catalyst bed towards its beginning on the second time scale. The full-field QEXAFS imaging method applied here allows acquisition of entire XANES spectra `on the fly' in a rapid and spatially resolved manner. The combination of high spatial and temporal resolution with spectroscopic data offers new opportunities for observing dynamic processes in catalysts and other functional materials at work. The methodology is flexible and can be applied at beamlines equipped with a QEXAFS or other fast-scanning monochromators and a suitable sample environment for gas phase analytics to allow for catalytic studies at the same time.
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Affiliation(s)
- Saba Alizadehfanaloo
- CXNS - Center for X-ray and Nano Science, Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, DE-22607 Hamburg, Germany
| | - Jan Garrevoet
- Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, DE-22607 Hamburg, Germany
| | - Martin Seyrich
- CXNS - Center for X-ray and Nano Science, Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, DE-22607 Hamburg, Germany
| | - Vadim Murzin
- Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, DE-22607 Hamburg, Germany
| | - Johannes Becher
- Institute for Chemical Technology and Polymer Chemistry, Karlsruhe Institute of Technology, Engesserstraße 20, DE-76131 Karlsruhe, Germany
| | - Dmitry E Doronkin
- Institute for Chemical Technology and Polymer Chemistry, Karlsruhe Institute of Technology, Engesserstraße 20, DE-76131 Karlsruhe, Germany
| | - Thomas L Sheppard
- Institute for Chemical Technology and Polymer Chemistry, Karlsruhe Institute of Technology, Engesserstraße 20, DE-76131 Karlsruhe, Germany
| | - Jan Dierk Grunwaldt
- Institute for Chemical Technology and Polymer Chemistry, Karlsruhe Institute of Technology, Engesserstraße 20, DE-76131 Karlsruhe, Germany
| | - Christian G Schroer
- CXNS - Center for X-ray and Nano Science, Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, DE-22607 Hamburg, Germany
| | - Andreas Schropp
- CXNS - Center for X-ray and Nano Science, Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, DE-22607 Hamburg, Germany
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Bogar M, Yakovlev Y, Sandbeck DJS, Cherevko S, Matolínová I, Amenitsch H, Khalakhan I. Interplay Among Dealloying, Ostwald Ripening, and Coalescence in Pt XNi 100–X Bimetallic Alloys under Fuel-Cell-Related Conditions. ACS Catal 2021. [DOI: 10.1021/acscatal.1c01111] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Marco Bogar
- CERIC-ERIC c/o Elettra Synchrotron, S.S. 14 Km 163.5, 34149 Trieste, Italy
- Graz University of Technology, Institute for Inorganic Chemistry, Stremayrgasse 9, 8010 Graz, Austria
| | - Yurii Yakovlev
- Charles University, Faculty of Mathematics and Physics, Department of Surface and Plasma Science, 18000 Prague 8, Czech Republic
| | - Daniel John Seale Sandbeck
- Helmholtz-Institute Erlangen-Nürnberg for Renewable Energy (IEK-11), Forschungszentrum Jülich GmbH, Egerlandstr. 3, 91058 Erlangen, Germany
- Department of Chemical and Biological Engineering, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91058 Erlangen, Germany
| | - Serhiy Cherevko
- Helmholtz-Institute Erlangen-Nürnberg for Renewable Energy (IEK-11), Forschungszentrum Jülich GmbH, Egerlandstr. 3, 91058 Erlangen, Germany
| | - Iva Matolínová
- Charles University, Faculty of Mathematics and Physics, Department of Surface and Plasma Science, 18000 Prague 8, Czech Republic
| | - Heinz Amenitsch
- Graz University of Technology, Institute for Inorganic Chemistry, Stremayrgasse 9, 8010 Graz, Austria
| | - Ivan Khalakhan
- Charles University, Faculty of Mathematics and Physics, Department of Surface and Plasma Science, 18000 Prague 8, Czech Republic
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Yoon J, Cao Z, Raju RK, Wang Y, Burnley R, Gellman AJ, Barati Farimani A, Ulissi ZW. Deep reinforcement learning for predicting kinetic pathways to surface reconstruction in a ternary alloy. MACHINE LEARNING: SCIENCE AND TECHNOLOGY 2021. [DOI: 10.1088/2632-2153/ac191c] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Abstract
The majority of computational catalyst design focuses on the screening of material components and alloy composition to optimize selectivity and activity for a given reaction. However, predicting the metastability of the alloy catalyst surface at realistic operating conditions requires an extensive sampling of possible surface reconstructions and their associated kinetic pathways. We present CatGym, a deep reinforcement learning (DRL) environment for predicting the thermal surface reconstruction pathways and their associated kinetic barriers in crystalline solids under reaction conditions. The DRL agent iteratively changes the positions of atoms in the near-surface region to generate kinetic pathways to accessible local minima involving changes in the surface compositions. We showcase our agent by predicting the surface reconstruction pathways of a ternary Ni3Pd3Au2(111) alloy catalyst. Our results show that the DRL agent can not only explore more diverse surface compositions than the conventional minima hopping method, but also generate the kinetic surface reconstruction pathways. We further demonstrate that the kinetic pathway to a global minimum energy surface composition and its associated transition state predicted by our agent is in good agreement with the minimum energy path predicted by nudged elastic band calculations.
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Piccolo L. Restructuring effects of the chemical environment in metal nanocatalysis and single-atom catalysis. Catal Today 2021. [DOI: 10.1016/j.cattod.2020.03.052] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Dery S, Mehlman H, Hale L, Carmiel-Kostan M, Yemini R, Ben-Tzvi T, Noked M, Toste FD, Gross E. Site-Independent Hydrogenation Reactions on Oxide-Supported Au Nanoparticles Facilitated by Intraparticle Hydrogen Atom Diffusion. ACS Catal 2021; 11:9875-9884. [PMID: 35756326 PMCID: PMC9223368 DOI: 10.1021/acscatal.1c01987] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Revised: 07/07/2021] [Indexed: 12/14/2022]
Affiliation(s)
- Shahar Dery
- Institute of Chemistry, The Hebrew University, Jerusalem 91904, Israel
- The Center for Nanoscience and Nanotechnology, The Hebrew University, Jerusalem 91904, Israel
| | - Hillel Mehlman
- Institute of Chemistry, The Hebrew University, Jerusalem 91904, Israel
- The Center for Nanoscience and Nanotechnology, The Hebrew University, Jerusalem 91904, Israel
| | - Lillian Hale
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Mazal Carmiel-Kostan
- Institute of Chemistry, The Hebrew University, Jerusalem 91904, Israel
- The Center for Nanoscience and Nanotechnology, The Hebrew University, Jerusalem 91904, Israel
| | - Reut Yemini
- Department of Chemistry, Bar Ilan University, Ramat Gan 5290002, Israel
- Bar-Ilan Institute of Nanotechnology and Advanced Materials, Ramat Gan 5290002, Israel
| | - Tzipora Ben-Tzvi
- Institute of Chemistry, The Hebrew University, Jerusalem 91904, Israel
- The Center for Nanoscience and Nanotechnology, The Hebrew University, Jerusalem 91904, Israel
| | - Malachi Noked
- Department of Chemistry, Bar Ilan University, Ramat Gan 5290002, Israel
- Bar-Ilan Institute of Nanotechnology and Advanced Materials, Ramat Gan 5290002, Israel
| | - F. Dean Toste
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Elad Gross
- Institute of Chemistry, The Hebrew University, Jerusalem 91904, Israel
- The Center for Nanoscience and Nanotechnology, The Hebrew University, Jerusalem 91904, Israel
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Strasser JW, Hersbach TJP, Liu J, Lapp AS, Frenkel AI, Crooks RM. Electrochemical Cleaning Stability and Oxygen Reduction Reaction Activity of 1‐2 nm Dendrimer‐Encapsulated Au Nanoparticles. ChemElectroChem 2021. [DOI: 10.1002/celc.202100549] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Juliette W. Strasser
- Department of Chemistry and Texas Materials Institute The University of Texas at Austin 2506 Speedway, Stop A5300 Austin TX 78712-1224, U.S.A
| | - Thomas J. P. Hersbach
- Department of Chemistry and Texas Materials Institute The University of Texas at Austin 2506 Speedway, Stop A5300 Austin TX 78712-1224, U.S.A
| | - Jing Liu
- Department of Physics Manhattan College Riverdale NY 10471 USA
| | - Aliya S. Lapp
- Department of Chemistry and Texas Materials Institute The University of Texas at Austin 2506 Speedway, Stop A5300 Austin TX 78712-1224, U.S.A
| | - Anatoly I. Frenkel
- Department of Materials Science and Chemical Engineering Stony Brook University Stony Brook NY 11794 USA
- Division of Chemistry Brookhaven National Laboratory Upton NY 11973 USA
| | - Richard M. Crooks
- Department of Chemistry and Texas Materials Institute The University of Texas at Austin 2506 Speedway, Stop A5300 Austin TX 78712-1224, U.S.A
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36
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Kim J, Choi H, Kim D, Park JY. Operando Surface Studies on Metal-Oxide Interfaces of Bimetal and Mixed Catalysts. ACS Catal 2021. [DOI: 10.1021/acscatal.1c02340] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Jeongjin Kim
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
| | - Hanseul Choi
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Daeho Kim
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Jeong Young Park
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
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Preikschas P, Plodinec M, Bauer J, Kraehnert R, Naumann d’Alnoncourt R, Schlögl R, Driess M, Rosowski F. Tuning the Rh–FeO x Interface in Ethanol Synthesis through Formation Phase Studies at High Pressures of Synthesis Gas. ACS Catal 2021. [DOI: 10.1021/acscatal.0c05365] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Phil Preikschas
- BasCat, UniCat BASF JointLab, Technische Universität Berlin, Hardenbergstraße 36, Sekr. EW-K01, 10623 Berlin, Germany
| | - Milivoj Plodinec
- Department of Inorganic Chemistry, Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
| | - Julia Bauer
- BasCat, UniCat BASF JointLab, Technische Universität Berlin, Hardenbergstraße 36, Sekr. EW-K01, 10623 Berlin, Germany
| | - Ralph Kraehnert
- BasCat, UniCat BASF JointLab, Technische Universität Berlin, Hardenbergstraße 36, Sekr. EW-K01, 10623 Berlin, Germany
| | - Raoul Naumann d’Alnoncourt
- BasCat, UniCat BASF JointLab, Technische Universität Berlin, Hardenbergstraße 36, Sekr. EW-K01, 10623 Berlin, Germany
| | - Robert Schlögl
- BasCat, UniCat BASF JointLab, Technische Universität Berlin, Hardenbergstraße 36, Sekr. EW-K01, 10623 Berlin, Germany
- Department of Inorganic Chemistry, Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
| | - Matthias Driess
- BasCat, UniCat BASF JointLab, Technische Universität Berlin, Hardenbergstraße 36, Sekr. EW-K01, 10623 Berlin, Germany
- Metalorganic Chemistry and Inorganic Materials, Department of Chemistry, Technische Universität Berlin, Straße des 17. Juni 135, Sekr. C2, 10623 Berlin, Germany
| | - Frank Rosowski
- BasCat, UniCat BASF JointLab, Technische Universität Berlin, Hardenbergstraße 36, Sekr. EW-K01, 10623 Berlin, Germany
- BASF SE, Process Research and Chemical Engineering, Heterogeneous Catalysis, Carl-Bosch-Straße 38, 67056 Ludwigshafen, Germany
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Shiratori T, Yamane I, Nodo S, Ota R, Yanase T, Nagahama T, Yamamoto Y, Shimada T. Synthesis of Boron Nitride Nanotubes Using Plasma-Assisted CVD Catalyzed by Cu Nanoparticles and Oxygen. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:651. [PMID: 33800144 PMCID: PMC8001056 DOI: 10.3390/nano11030651] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 02/28/2021] [Accepted: 03/05/2021] [Indexed: 02/05/2023]
Abstract
We found that oxidized Cu nanoparticles can catalyze the growth of boron nitride nanotubes from borazine via plasma-assisted chemical vapor deposition. The Raman spectra suggest that the formation of thin-walled nanotubes show a radial breathing mode vibration. The presence of oxygen in the plasma environment was necessary for the growth of the nanotubes, and a part of the nanotubes had a core shell structure with a cupper species inside it. In atomic resolution transmission electron microscope (TEM) images, Cu2O was found at the interface between the Cu-core and turbostratic BN-shell. The growth mechanism seemed different from that of carbon nanotube core-shell structures. Therefore, we pointed out the important role of the dynamic morphological change in the Cu2O-Cu system.
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Affiliation(s)
- Tatsuya Shiratori
- Graduate School of Chemical Science and Engineering, Hokkaido University, Kita 13 Nishi 8, Sapporo 060-8628, Japan; (T.S.); (I.Y.); (S.N.); (T.Y.); (T.N.); (Y.Y.)
| | - Ichiro Yamane
- Graduate School of Chemical Science and Engineering, Hokkaido University, Kita 13 Nishi 8, Sapporo 060-8628, Japan; (T.S.); (I.Y.); (S.N.); (T.Y.); (T.N.); (Y.Y.)
| | - Shoto Nodo
- Graduate School of Chemical Science and Engineering, Hokkaido University, Kita 13 Nishi 8, Sapporo 060-8628, Japan; (T.S.); (I.Y.); (S.N.); (T.Y.); (T.N.); (Y.Y.)
| | - Ryo Ota
- Center for Advanced Research of Energy and Materials, Faculty of Engineering, Hokkaido University, Kita 13 Nishi 8, Sapporo 060-8628, Japan;
| | - Takashi Yanase
- Graduate School of Chemical Science and Engineering, Hokkaido University, Kita 13 Nishi 8, Sapporo 060-8628, Japan; (T.S.); (I.Y.); (S.N.); (T.Y.); (T.N.); (Y.Y.)
- Division of Applied Chemistry, Faculty of Engineering, Hokkaido University, Kita 13 Nishi 8, Sapporo 060-8628, Japan
| | - Taro Nagahama
- Graduate School of Chemical Science and Engineering, Hokkaido University, Kita 13 Nishi 8, Sapporo 060-8628, Japan; (T.S.); (I.Y.); (S.N.); (T.Y.); (T.N.); (Y.Y.)
- Division of Applied Chemistry, Faculty of Engineering, Hokkaido University, Kita 13 Nishi 8, Sapporo 060-8628, Japan
| | - Yasunori Yamamoto
- Graduate School of Chemical Science and Engineering, Hokkaido University, Kita 13 Nishi 8, Sapporo 060-8628, Japan; (T.S.); (I.Y.); (S.N.); (T.Y.); (T.N.); (Y.Y.)
- Division of Applied Chemistry, Faculty of Engineering, Hokkaido University, Kita 13 Nishi 8, Sapporo 060-8628, Japan
| | - Toshihiro Shimada
- Graduate School of Chemical Science and Engineering, Hokkaido University, Kita 13 Nishi 8, Sapporo 060-8628, Japan; (T.S.); (I.Y.); (S.N.); (T.Y.); (T.N.); (Y.Y.)
- Division of Applied Chemistry, Faculty of Engineering, Hokkaido University, Kita 13 Nishi 8, Sapporo 060-8628, Japan
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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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41
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Liu L, Corma A. Structural transformations of solid electrocatalysts and photocatalysts. Nat Rev Chem 2021; 5:256-276. [PMID: 37117283 DOI: 10.1038/s41570-021-00255-8] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/15/2021] [Indexed: 01/13/2023]
Abstract
Heterogeneous catalysts often undergo structural transformations when they operate under thermal reaction conditions. These transformations are reflected in their evolving catalytic activity, and a fundamental understanding of the changing nature of active sites is vital for the rational design of solid materials for applications. Beyond thermal catalysis, both photocatalysis and electrocatalysis are topical because they can harness renewable energy to drive uphill reactions that afford commodity chemicals and fuels. Although structural transformations of photocatalysts and electrocatalysts have been observed in operando, the resulting implications for catalytic behaviour are not fully understood. In this Review, we summarize and compare the structural evolution of solid thermal catalysts, electrocatalysts and photocatalysts. We suggest that well-established knowledge of thermal catalysis offers a good basis to understand emerging photocatalysis and electrocatalysis research.
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Wang X, Klingan K, Klingenhof M, Möller T, Ferreira de Araújo J, Martens I, Bagger A, Jiang S, Rossmeisl J, Dau H, Strasser P. Morphology and mechanism of highly selective Cu(II) oxide nanosheet catalysts for carbon dioxide electroreduction. Nat Commun 2021; 12:794. [PMID: 33542208 PMCID: PMC7862240 DOI: 10.1038/s41467-021-20961-7] [Citation(s) in RCA: 88] [Impact Index Per Article: 29.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 01/03/2021] [Indexed: 11/18/2022] Open
Abstract
Cu oxides catalyze the electrochemical carbon dioxide reduction reaction (CO2RR) to hydrocarbons and oxygenates with favorable selectivity. Among them, the shape-controlled Cu oxide cubes have been most widely studied. In contrast, we report on novel 2-dimensional (2D) Cu(II) oxide nanosheet (CuO NS) catalysts with high C2+ products, selectivities (> 400 mA cm-2) in gas diffusion electrodes (GDE) at industrially relevant currents and neutral pH. Under applied bias, the (001)-orientated CuO NS slowly evolve into highly branched, metallic Cu0 dendrites that appear as a general dominant morphology under electrolyte flow conditions, as attested by operando X-ray absorption spectroscopy and in situ electrochemical transmission electron microscopy (TEM). Millisecond-resolved differential electrochemical mass spectrometry (DEMS) track a previously unavailable set of product onset potentials. While the close mechanistic relation between CO and C2H4 was thereby confirmed, the DEMS data help uncover an unexpected mechanistic link between CH4 and ethanol. We demonstrate evidence that adsorbed methyl species, *CH3, serve as common intermediates of both CH3H and CH3CH2OH and possibly of other CH3-R products via a previously overlooked pathway at (110) steps adjacent to (100) terraces at larger overpotentials. Our mechanistic conclusions challenge and refine our current mechanistic understanding of the CO2 electrolysis on Cu catalysts.
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Affiliation(s)
- Xingli Wang
- Department of Chemistry, Chemical Engineering Division, Technical University Berlin, Straße des 17. June 124, 10623, Berlin, Germany
| | - Katharina Klingan
- Department of Physics, Free University of Berlin, Arnimallee 14, 14195, Berlin, Germany
| | - Malte Klingenhof
- Department of Chemistry, Chemical Engineering Division, Technical University Berlin, Straße des 17. June 124, 10623, Berlin, Germany
| | - Tim Möller
- Department of Chemistry, Chemical Engineering Division, Technical University Berlin, Straße des 17. June 124, 10623, Berlin, Germany
| | - Jorge Ferreira de Araújo
- Department of Chemistry, Chemical Engineering Division, Technical University Berlin, Straße des 17. June 124, 10623, Berlin, Germany
| | - Isaac Martens
- European Synchrotron Radiation Facility (ESRF), 38000, Grenoble, France
| | - Alexander Bagger
- Department of Chemistry, University of Copenhagen, Copenhagen, 2100, Denmark
| | - Shan Jiang
- Department of Physics, Free University of Berlin, Arnimallee 14, 14195, Berlin, Germany
| | - Jan Rossmeisl
- Department of Chemistry, University of Copenhagen, Copenhagen, 2100, Denmark
| | - Holger Dau
- Department of Physics, Free University of Berlin, Arnimallee 14, 14195, Berlin, Germany
| | - Peter Strasser
- Department of Chemistry, Chemical Engineering Division, Technical University Berlin, Straße des 17. June 124, 10623, Berlin, Germany.
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Hou Y, Kovács N, Xu H, Sun C, Erni R, Gálvez-Vázquez MDJ, Rieder A, Hu H, Kong Y, Liu M, Wiley BJ, Vesztergom S, Broekmann P. Limitations of identical location SEM as a method of degradation studies on surfactant capped nanoparticle electrocatalysts. J Catal 2021. [DOI: 10.1016/j.jcat.2020.12.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Simon GH, Kley CS, Roldan Cuenya B. Potential-Dependent Morphology of Copper Catalysts During CO 2 Electroreduction Revealed by In Situ Atomic Force Microscopy. Angew Chem Int Ed Engl 2021; 60:2561-2568. [PMID: 33035401 PMCID: PMC7898873 DOI: 10.1002/anie.202010449] [Citation(s) in RCA: 77] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 09/17/2020] [Indexed: 12/28/2022]
Abstract
Electrochemical AFM is a powerful tool for the real-space characterization of catalysts under realistic electrochemical CO2 reduction (CO2 RR) conditions. The evolution of structural features ranging from the micrometer to the atomic scale could be resolved during CO2 RR. Using Cu(100) as model surface, distinct nanoscale surface morphologies and their potential-dependent transformations from granular to smoothly curved mound-pit surfaces or structures with rectangular terraces are revealed during CO2 RR in 0.1 m KHCO3 . The density of undercoordinated copper sites during CO2 RR is shown to increase with decreasing potential. In situ atomic-scale imaging reveals specific adsorption occurring at distinct cathodic potentials impacting the observed catalyst structure. These results show the complex interrelation of the morphology, structure, defect density, applied potential, and electrolyte in copper CO2 RR catalysts.
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Affiliation(s)
- Georg H. Simon
- Department of Interface ScienceFritz Haber Institute of the Max Planck Society14195BerlinGermany
| | - Christopher S. Kley
- Department of Interface ScienceFritz Haber Institute of the Max Planck Society14195BerlinGermany
- Young Investigator Group Nanoscale Operando CO2 Photo-ElectrocatalysisHelmholtz-Zentrum Berlin für Materialien und Energie GmbH14109BerlinGermany
| | - Beatriz Roldan Cuenya
- Department of Interface ScienceFritz Haber Institute of the Max Planck Society14195BerlinGermany
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Fast operando spectroscopy tracking in situ generation of rich defects in silver nanocrystals for highly selective electrochemical CO 2 reduction. Nat Commun 2021; 12:660. [PMID: 33510153 PMCID: PMC7844229 DOI: 10.1038/s41467-021-20960-8] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 01/05/2021] [Indexed: 01/31/2023] Open
Abstract
Electrochemical CO2 reduction (ECR) is highly attractive to curb global warming. The knowledge on the evolution of catalysts and identification of active sites during the reaction is important, but still limited. Here, we report an efficient catalyst (Ag-D) with suitable defect concentration operando formed during ECR within several minutes. Utilizing the powerful fast operando X-ray absorption spectroscopy, the evolving electronic and crystal structures are unraveled under ECR condition. The catalyst exhibits a ~100% faradaic efficiency and negligible performance degradation over a 120-hour test at a moderate overpotential of 0.7 V in an H-cell reactor and a current density of ~180 mA cm-2 at -1.0 V vs. reversible hydrogen electrode in a flow-cell reactor. Density functional theory calculations indicate that the adsorption of intermediate COOH could be enhanced and the free energy of the reaction pathways could be optimized by an appropriate defect concentration, rationalizing the experimental observation.
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Timoshenko J, Roldan Cuenya B. In Situ/ Operando Electrocatalyst Characterization by X-ray Absorption Spectroscopy. Chem Rev 2021; 121:882-961. [PMID: 32986414 PMCID: PMC7844833 DOI: 10.1021/acs.chemrev.0c00396] [Citation(s) in RCA: 184] [Impact Index Per Article: 61.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Indexed: 12/18/2022]
Abstract
During the last decades, X-ray absorption spectroscopy (XAS) has become an indispensable method for probing the structure and composition of heterogeneous catalysts, revealing the nature of the active sites and establishing links between structural motifs in a catalyst, local electronic structure, and catalytic properties. Here we discuss the fundamental principles of the XAS method and describe the progress in the instrumentation and data analysis approaches undertaken for deciphering X-ray absorption near edge structure (XANES) and extended X-ray absorption fine structure (EXAFS) spectra. Recent usages of XAS in the field of heterogeneous catalysis, with emphasis on examples concerning electrocatalysis, will be presented. The latter is a rapidly developing field with immense industrial applications but also unique challenges in terms of the experimental characterization restrictions and advanced modeling approaches required. This review will highlight the new insight that can be gained with XAS on complex real-world electrocatalysts including their working mechanisms and the dynamic processes taking place in the course of a chemical reaction. More specifically, we will discuss applications of in situ and operando XAS to probe the catalyst's interactions with the environment (support, electrolyte, ligands, adsorbates, reaction products, and intermediates) and its structural, chemical, and electronic transformations as it adapts to the reaction conditions.
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Affiliation(s)
- Janis Timoshenko
- Department of Interface Science, Fritz-Haber Institute of the Max-Planck Society, 14195 Berlin, Germany
| | - Beatriz Roldan Cuenya
- Department of Interface Science, Fritz-Haber Institute of the Max-Planck Society, 14195 Berlin, Germany
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47
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Sun G, Fuller JT, Alexandrova AN, Sautet P. Global Activity Search Uncovers Reaction Induced Concomitant Catalyst Restructuring for Alkane Dissociation on Model Pt Catalysts. ACS Catal 2021. [DOI: 10.1021/acscatal.0c05421] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Geng Sun
- Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, Los Angeles, California 90095, United States
| | - Jack T. Fuller
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, California 90095, United States
| | - Anastassia N. Alexandrova
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, California 90095, United States
- California Nano Systems Institute, Los Angeles, California 90095-1569, United States
| | - Philippe Sautet
- Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, Los Angeles, California 90095, United States
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, California 90095, United States
- California Nano Systems Institute, Los Angeles, California 90095-1569, United States
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48
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Mallavarapu A, Ajay P, Barrera C, Sreenivasan SV. Ruthenium-Assisted Chemical Etching of Silicon: Enabling CMOS-Compatible 3D Semiconductor Device Nanofabrication. ACS APPLIED MATERIALS & INTERFACES 2021; 13:1169-1177. [PMID: 33348977 DOI: 10.1021/acsami.0c17011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The semiconductor industry's transition to three-dimensional (3D) logic and memory devices has revealed the limitations of plasma etching in reliable creation of vertical high aspect ratio (HAR) nanostructures. Metal-assisted chemical etch (MacEtch) can create ultra-HAR, taper-free nanostructures in silicon, but the catalyst used for reliable MacEtch-gold-is not CMOS (complementary metal-oxide-semiconductor)-compatible and therefore cannot be used in the semiconductor industry. Here, for the first time, we report a ruthenium MacEtch process that is comparable in quality to gold MacEtch. We introduce new process variables-catalyst plasma pretreatment and surface area-to achieve this result. Ruthenium is particularly desirable as it is not only CMOS-compatible but has also been introduced in semiconductor fabrication as an interconnect material. The results presented here remove a significant barrier to adoption of MacEtch for scalable fabrication of 3D semiconductor devices, sensors, and biodevices that can benefit from production in CMOS foundries.
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Affiliation(s)
- Akhila Mallavarapu
- NASCENT Engineering Research Center, University of Texas at Austin, Austin, Texas 78758, United States
| | - Paras Ajay
- NASCENT Engineering Research Center, University of Texas at Austin, Austin, Texas 78758, United States
| | - Crystal Barrera
- NASCENT Engineering Research Center, University of Texas at Austin, Austin, Texas 78758, United States
| | - S V Sreenivasan
- NASCENT Engineering Research Center, University of Texas at Austin, Austin, Texas 78758, United States
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Zhang M, Zou S, Mo S, Zhong J, Chen D, Ren Q, Fu M, Chen P, Ye D. Enhancement of catalytic toluene combustion over Pt-Co 3O 4 catalyst through in-situ metal-organic template conversion. CHEMOSPHERE 2021; 262:127738. [PMID: 32763575 DOI: 10.1016/j.chemosphere.2020.127738] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Revised: 07/14/2020] [Accepted: 07/16/2020] [Indexed: 06/11/2023]
Abstract
A Pt-Co3O4 catalyst named Pt-Co(OH)2-O was prepared by metal-organic templates (MOTs) conversion and used for catalytic oxidation of toluene. Through the conversion, the morphology of catalysts transformed from rhombic dodecahedron to nanosheet and the coated Pt nanoparticles (NPs) were more exposed. The Binding energy shift in XPS test indicates that the strong metal-support strong interaction (SMSI) has enhanced, and the physicochemical changes caused by it are characterized by other techniques. At the same time, Pt-Co(OH)2-O showed the best catalytic performance (T50 = 157 °C, T90 = 167 °C, Ea = 40.85 kJ mol-1, TOFPt = 2.68 × 10-3 s-1) and good stability. In addition, the in situ Diffuse Reflectance Infrared Fourier Transform Spectroscopy (DRIFTS) studies have shown that because SMSI weakened the Co-O bond, the introduction of Pt NPs can make the migration of oxygen in the catalyst easier. The change of binding energy change and the content of various species in the quasi in situ XPS experiment further confirmed that the Pt-Co(OH)2-O catalyst has stronger SMSI, resulting in its stronger electron transfer ability and oxygen migration ability, which is conducive to catalytic reactions. This work provides new ideas for the development of supported catalysts and provides a theoretical reference for the relevant verification of SMSI.
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Affiliation(s)
- Mingyuan Zhang
- School of Environment and Energy, South China University of Technology, 510006 Guangzhou, China
| | - Sibei Zou
- School of Environment and Energy, South China University of Technology, 510006 Guangzhou, China
| | - Shengpeng Mo
- School of Environment and Energy, South China University of Technology, 510006 Guangzhou, China
| | - Jinping Zhong
- School of Environment and Energy, South China University of Technology, 510006 Guangzhou, China
| | - Dongdong Chen
- School of Environment and Energy, South China University of Technology, 510006 Guangzhou, China
| | - Quanming Ren
- School of Environment and Energy, South China University of Technology, 510006 Guangzhou, China
| | - Mingli Fu
- School of Environment and Energy, South China University of Technology, 510006 Guangzhou, China; National Engineering Laboratory for VOCs Pollution Control Technology and Equipment (SCUT), 510006 Guangzhou, China; Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control (SCUT), 510006 Guangzhou, China; Guangdong Provincial Engineering and Technology Research Centre for Environmental Risk Prevention and Emergency Disposal (SCUT), 510006 Guangzhou, China
| | - Peirong Chen
- School of Environment and Energy, South China University of Technology, 510006 Guangzhou, China; National Engineering Laboratory for VOCs Pollution Control Technology and Equipment (SCUT), 510006 Guangzhou, China; Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control (SCUT), 510006 Guangzhou, China; Guangdong Provincial Engineering and Technology Research Centre for Environmental Risk Prevention and Emergency Disposal (SCUT), 510006 Guangzhou, China
| | - Daiqi Ye
- School of Environment and Energy, South China University of Technology, 510006 Guangzhou, China; National Engineering Laboratory for VOCs Pollution Control Technology and Equipment (SCUT), 510006 Guangzhou, China; Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control (SCUT), 510006 Guangzhou, China; Guangdong Provincial Engineering and Technology Research Centre for Environmental Risk Prevention and Emergency Disposal (SCUT), 510006 Guangzhou, China.
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50
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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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