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Prieto MJ, Mullan T, Wan W, Tănase LC, de Souza Caldas L, Shaikhutdinov S, Sauer J, Usvyat D, Schmidt T, Cuenya BR. Plasma Functionalization of Silica Bilayer Polymorphs. ACS APPLIED MATERIALS & INTERFACES 2022; 14:48609-48618. [PMID: 36255411 PMCID: PMC9634693 DOI: 10.1021/acsami.2c11491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 09/07/2022] [Indexed: 06/16/2023]
Abstract
Ultrathin silica films are considered suitable two-dimensional model systems for the study of fundamental chemical and physical properties of all-silica zeolites and their derivatives, as well as novel supports for the stabilization of single atoms. In the present work, we report the creation of a new model catalytic support based on the surface functionalization of different silica bilayer (BL) polymorphs with well-defined atomic structures. The functionalization is carried out by means of in situ H-plasma treatments at room temperature. Low energy electron diffraction and microscopy data indicate that the atomic structure of the films remains unchanged upon treatment. Comparing the experimental results (photoemission and infrared absorption spectra) with density functional theory simulations shows that H2 is added via the heterolytic dissociation of an interlayer Si-O-Si siloxane bond and the subsequent formation of a hydroxyl and a hydride group in the top and bottom layers of the silica film, respectively. Functionalization of the silica films constitutes the first step into the development of a new type of model system of single-atom catalysts where metal atoms with different affinities for the functional groups can be anchored in the SiO2 matrix in well-established positions. In this way, synergistic and confinement effects between the active centers can be studied in a controlled manner.
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Affiliation(s)
- Mauricio J. Prieto
- Department
of Interface Science, Fritz-Haber-Institut
der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195Berlin, Germany
| | - Thomas Mullan
- Institut
für Chemie, Humboldt-Universität zu Berlin, Unter den Linden 6, 10099Berlin, Germany
| | - Weiming Wan
- Department
of Interface Science, Fritz-Haber-Institut
der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195Berlin, Germany
| | - Liviu C. Tănase
- Department
of Interface Science, Fritz-Haber-Institut
der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195Berlin, Germany
| | - Lucas de Souza Caldas
- Department
of Interface Science, Fritz-Haber-Institut
der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195Berlin, Germany
| | - Shamil Shaikhutdinov
- Department
of Interface Science, Fritz-Haber-Institut
der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195Berlin, Germany
| | - Joachim Sauer
- Institut
für Chemie, Humboldt-Universität zu Berlin, Unter den Linden 6, 10099Berlin, Germany
| | - Denis Usvyat
- Institut
für Chemie, Humboldt-Universität zu Berlin, Unter den Linden 6, 10099Berlin, Germany
| | - Thomas Schmidt
- Department
of Interface Science, Fritz-Haber-Institut
der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195Berlin, Germany
| | - Beatriz Roldan Cuenya
- Department
of Interface Science, Fritz-Haber-Institut
der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195Berlin, Germany
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2
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Abstract
Two-dimensional (2D) ultrathin silica films have the potential to reach technological importance in electronics and catalysis. Several well-defined 2D-silica structures have been synthesized so far. The silica bilayer represents a 2D material with SiO2 stoichiometry. It consists of precisely two layers of tetrahedral [SiO4] building blocks, corner connected via oxygen bridges, thus forming a self-saturated silicon dioxide sheet with a thickness of ∼0.5 nm. Inspired by recent successful preparations and characterizations of these 2D-silica model systems, scientists now can forge novel concepts for realistic systems, particularly by atomic-scale studies with the most powerful and advanced surface science techniques and density functional theory calculations. This Review provides a solid introduction to these recent developments, breakthroughs, and implications on ultrathin 2D-silica films, including their atomic/electronic structures, chemical modifications, atom/molecule adsorptions, and catalytic reactivity properties, which can help to stimulate further investigations and understandings of these fundamentally important 2D materials.
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Affiliation(s)
- Jian-Qiang Zhong
- School of Physics, Hangzhou Normal University, No. 2318, Yuhangtang Road, Hangzhou, 311121 Zhejiang, China
| | - Hans-Joachim Freund
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
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3
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Souda R, Aizawa T, Sugiyama N, Takeguchi M. Nucleation and growth of water ice on oxide surfaces: the influence of a precursor to water dissociation. Phys Chem Chem Phys 2020; 22:20515-20523. [PMID: 32966413 DOI: 10.1039/d0cp01897j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
We have investigated how nucleation and growth processes of ice are influenced by interfacial molecular interactions on some oxide surfaces, such as rutile TiO2(110), TiO2(100), MgO(100), and Al2O3(0001), based on the diffraction patterns of electrons transmitted through ice crystallites under the experimental configuration of reflection high energy electron diffraction (RHEED). The cubic ice Ic grows on the TiO2(110) surface with the epitaxial relationship of (110)Ic//(110)TiO2 and [001]Ic//[11[combining macron]0]TiO2. The epitaxial ice growth tends to be disturbed on the TiO2(110) surface under the presence of oxygen vacancies and adatoms. The result is not simply ascribable to small misfit values between TiO2 and ice Ic lattices (∼2%) because ice grains are formed randomly on TiO2(100). No template effects are identified during ice nucleation on the pristine MgO(100) and Al2O3(0001) surfaces either. The water molecules are chemisorbed weakly on these surfaces as a precursor to dissociation via the acid-base interaction. Such anchored water species act as an inhibitor of epitaxial ice growth because the orientation flexibility of physisorbed water during nucleation is hampered at the interface by the preferential formation of hydrogen bonds.
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Affiliation(s)
- Ryutaro Souda
- Transmission Electron Microscopy Station, National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan.
| | - Takashi Aizawa
- Center for Functional Sensor & Actuator, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Naoyuki Sugiyama
- Transmission Electron Microscopy Station, National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan. and Toray Research Center Inc., 3-3-7 Sonoyama, Otsu, Shiga 520-8567, Japan
| | - Masaki Takeguchi
- Transmission Electron Microscopy Station, National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan.
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Barcaro G, Fortunelli A. 2D oxides on metal materials: concepts, status, and perspectives. Phys Chem Chem Phys 2019; 21:11510-11536. [DOI: 10.1039/c9cp00972h] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two-dimensional oxide-on-metal materials: concepts, methods, and link to technological applications, with 5 subtopics: structural motifs, robustness, catalysis, ternaries, and nanopatterning.
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5
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Prieto MJ, Klemm HW, Xiong F, Gottlob DM, Menzel D, Schmidt T, Freund H. Wasserbildung unter dünnen Silika‐Filmen: Echtzeitbeobachtung einer chemischen Reaktion in einem physikalisch eingegrenzten Raum. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201802000] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Mauricio J. Prieto
- Abteilung Chemische Physik Fritz-Haber-Institut der Max-Planck-Gesellschaft Faradayweg 4–6 14195 Berlin Deutschland
| | - Hagen W. Klemm
- Abteilung Chemische Physik Fritz-Haber-Institut der Max-Planck-Gesellschaft Faradayweg 4–6 14195 Berlin Deutschland
| | - Feng Xiong
- Department of Chemical Physics University of Science and Technology of China Hefei 230026 Volksrepublik China
| | - Daniel M. Gottlob
- Abteilung Chemische Physik Fritz-Haber-Institut der Max-Planck-Gesellschaft Faradayweg 4–6 14195 Berlin Deutschland
| | - Dietrich Menzel
- Abteilung Chemische Physik Fritz-Haber-Institut der Max-Planck-Gesellschaft Faradayweg 4–6 14195 Berlin Deutschland
- Physik-Department E20 Technische Universität München 85778 Garching Deutschland
| | - Thomas Schmidt
- Abteilung Chemische Physik Fritz-Haber-Institut der Max-Planck-Gesellschaft Faradayweg 4–6 14195 Berlin Deutschland
| | - Hans‐Joachim Freund
- Abteilung Chemische Physik Fritz-Haber-Institut der Max-Planck-Gesellschaft Faradayweg 4–6 14195 Berlin Deutschland
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Prieto MJ, Klemm HW, Xiong F, Gottlob DM, Menzel D, Schmidt T, Freund H. Water Formation under Silica Thin Films: Real-Time Observation of a Chemical Reaction in a Physically Confined Space. Angew Chem Int Ed Engl 2018; 57:8749-8753. [PMID: 29663598 PMCID: PMC6055755 DOI: 10.1002/anie.201802000] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Indexed: 11/30/2022]
Abstract
Using low-energy electron microscopy and local photoelectron spectroscopy, water formation from adsorbed O and H2 on a Ru(0001) surface covered with a vitreous SiO2 bilayer (BL) was investigated and compared to the same reaction on bare Ru(0001). In both cases the reaction is characterized by moving reaction fronts. The reason for this might be related to the requirement of site release by O adatoms for further H2 -dissociative adsorption. Apparent activation energies (Eaapp ) are found for the front motion of 0.59 eV without cover and 0.27 eV under cover. We suggest that the smaller activation energy but higher reaction temperature for the reaction on the SiO2 BL covered Ru(0001) surface is due to a change of the rate-determining step. Other possible effects of the cover are discussed. Our results give the first values for Eaapp in confined space.
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Affiliation(s)
- Mauricio J. Prieto
- Department of Chemical PhysicsFritz-Haber Institute of the Max-Planck SocietyFaradayweg 4–614195-BerlinGermany
| | - Hagen W. Klemm
- Department of Chemical PhysicsFritz-Haber Institute of the Max-Planck SocietyFaradayweg 4–614195-BerlinGermany
| | - Feng Xiong
- Department of Chemical PhysicsUniversity of Science and Technology of ChinaHefei230026P. R. China
| | - Daniel M. Gottlob
- Department of Chemical PhysicsFritz-Haber Institute of the Max-Planck SocietyFaradayweg 4–614195-BerlinGermany
| | - Dietrich Menzel
- Department of Chemical PhysicsFritz-Haber Institute of the Max-Planck SocietyFaradayweg 4–614195-BerlinGermany
- Physik-Department E20Technical University München85778GarchingGermany
| | - Thomas Schmidt
- Department of Chemical PhysicsFritz-Haber Institute of the Max-Planck SocietyFaradayweg 4–614195-BerlinGermany
| | - Hans‐Joachim Freund
- Department of Chemical PhysicsFritz-Haber Institute of the Max-Planck SocietyFaradayweg 4–614195-BerlinGermany
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7
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Usvyat D, Maschio L, Schütz M. Periodic and fragment models based on the local correlation approach. WILEY INTERDISCIPLINARY REVIEWS-COMPUTATIONAL MOLECULAR SCIENCE 2018. [DOI: 10.1002/wcms.1357] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Denis Usvyat
- Institut für ChemieHumboldt‐Universität zu BerlinBerlinGermany
| | - Lorenzo Maschio
- Dipartimento di Chimica and NIS (Nanostructured Interfaces and Surfaces) CentreUniversità di TorinoTorinoItaly
| | - Martin Schütz
- Institut für ChemieHumboldt‐Universität zu BerlinBerlinGermany
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8
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Pacchioni G, Freund HJ. Controlling the charge state of supported nanoparticles in catalysis: lessons from model systems. Chem Soc Rev 2018; 47:8474-8502. [DOI: 10.1039/c8cs00152a] [Citation(s) in RCA: 110] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Model systems are very important to identify the working principles of real catalysts, and to develop concepts that can be used in the design of new catalytic materials.
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Affiliation(s)
| | - Hans-Joachim Freund
- Fritz-Haber-Institut der Max-Planck-Gesellschaft
- Department of Chemical Physics
- 14195 Berlin
- Germany
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9
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Pan Q, Li L, Shaikhutdinov S, Freund HJ. Planar model system of the Phillips (Cr/SiO2) catalyst based on a well-defined thin silicate film. J Catal 2018. [DOI: 10.1016/j.jcat.2017.10.026] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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10
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Pan Q, Li L, Shaikhutdinov S, Fujimori Y, Hollerer M, Sterrer M, Freund HJ. Model systems in heterogeneous catalysis: towards the design and understanding of structure and electronic properties. Faraday Discuss 2018; 208:307-323. [DOI: 10.1039/c7fd00209b] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We discuss in this paper two case studies related to nano-particle catalyst systems: one concerns a model system for the Cr/SiO2 Phillips catalyst for ethylene polymerization and the other provides additional information on Au nano-particles supported on ultrathin MgO(100)/Ag(100) films.
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Affiliation(s)
- Q. Pan
- Fritz-Haber-Institute of the Max-Planck Society
- Department of Chemical Physics
- 14195 Berlin
- Germany
| | - L. Li
- Fritz-Haber-Institute of the Max-Planck Society
- Department of Chemical Physics
- 14195 Berlin
- Germany
| | - S. Shaikhutdinov
- Fritz-Haber-Institute of the Max-Planck Society
- Department of Chemical Physics
- 14195 Berlin
- Germany
| | - Y. Fujimori
- Fritz-Haber-Institute of the Max-Planck Society
- Department of Chemical Physics
- 14195 Berlin
- Germany
| | - M. Hollerer
- University of Graz
- Institute of Physics
- NAWI Graz
- Universitätsplatz 5
- 8010 Graz
| | - M. Sterrer
- University of Graz
- Institute of Physics
- NAWI Graz
- Universitätsplatz 5
- 8010 Graz
| | - H.-J. Freund
- Fritz-Haber-Institute of the Max-Planck Society
- Department of Chemical Physics
- 14195 Berlin
- Germany
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11
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Goldsmith BR, Peters B, Johnson JK, Gates BC, Scott SL. Beyond Ordered Materials: Understanding Catalytic Sites on Amorphous Solids. ACS Catal 2017. [DOI: 10.1021/acscatal.7b01767] [Citation(s) in RCA: 99] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Bryan R. Goldsmith
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, D-14195 Berlin, Germany
- Department
of Chemical Engineering, University of Michigan, Ann Arbor, Michigan 48105, United States
| | - Baron Peters
- Department
of Chemical Engineering, University of California, Santa Barbara, California 93106, United States
- Department of Chemistry & Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - J. Karl Johnson
- Department
of Chemical and Petroleum Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, United States
| | - Bruce C. Gates
- Department
of Chemical Engineering, University of California, Davis, California 95616, United States
| | - Susannah L. Scott
- Department
of Chemical Engineering, University of California, Santa Barbara, California 93106, United States
- Department of Chemistry & Biochemistry, University of California, Santa Barbara, California 93106, United States
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12
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Abstract
Hydroxylation and dissolution of well-structured silica bilayer films grown on a ruthenium single-crystal support (SiO2/Ru(0001)) was studied by temperature programmed desorption and X-ray photoelectron spectroscopy (XPS). Water desorption signals from SiO2/Ru(0001) hydroxylated by electron-bombardment of adsorbed ice at 100 K were found to be comparable to those of hydroxylated bulk silica samples and attributed to adsorbed molecular water and silanol groups (vicinal and terminal). Isotopic exchange between 18O-labeled SiO2 and 16O-labeled water suggests the occurrence of dynamic siloxane bond cleavage and re-formation during electron bombardment. Together with the observed strong dependence of hydroxylation activity on ice coverage, which is found to increase with increasing thickness of the ice layer, a hydroxylation mechanism based on the activation of siloxane bonds by water radiolysis products (e.g. hydroxyls) and subsequent water dissociation is proposed. Dissolution rates obtained from the attenuation of Si 2p and O 1s XPS signal intensities upon exposure of bilayer SiO2/Ru(0001) to alkaline conditions at various temperatures are in agreement with the proposed rate model for bulk silica dissolution by OH− attack and provide further corroboration of the proposed hydroxylation mechanism.
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Affiliation(s)
- William E. Kaden
- Department of Chemical Physics, Fritz Haber Institute of the Max Planck Society, Faradayweg 4-6, 14195 Berlin, Germany
- Present Address: Department of Physics, University of Central Florida, 4111 Libra Drive, Physical Sciences Building 308, Orlando, FL 32816 USA
| | - Sascha Pomp
- Department of Chemical Physics, Fritz Haber Institute of the Max Planck Society, Faradayweg 4-6, 14195 Berlin, Germany
- Institute of Physics, University of Graz, Universitätsplatz 5, 8010 Graz, Austria
| | - Martin Sterrer
- Department of Chemical Physics, Fritz Haber Institute of the Max Planck Society, Faradayweg 4-6, 14195 Berlin, Germany
- Institute of Physics, University of Graz, Universitätsplatz 5, 8010 Graz, Austria
| | - Hans-Joachim Freund
- Department of Chemical Physics, Fritz Haber Institute of the Max Planck Society, Faradayweg 4-6, 14195 Berlin, Germany
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13
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Büchner C, Wang ZJ, Burson KM, Willinger MG, Heyde M, Schlögl R, Freund HJ. A Large-Area Transferable Wide Band Gap 2D Silicon Dioxide Layer. ACS NANO 2016; 10:7982-7989. [PMID: 27421042 DOI: 10.1021/acsnano.6b03929] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
An atomically smooth silica bilayer is transferred from the growth substrate to a new support via mechanical exfoliation at millimeter scale. The atomic structure and morphology are maintained perfectly throughout the process. A simple heating treatment results in complete removal of the transfer medium. Low-energy electron diffraction, Auger electron spectroscopy, scanning tunneling microscopy, and environmental scanning electron microscopy show the success of the transfer steps. Excellent chemical and thermal stability result from the absence of dangling bonds in the film structure. By adding this wide band gap oxide to the toolbox of 2D materials, possibilities for van der Waals heterostructures will be broadened significantly.
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Affiliation(s)
- Christin Büchner
- Fritz-Haber-Institut der Max-Planck-Gesellschaft Faradayweg 4-6, 14195 Berlin, Germany
| | - Zhu-Jun Wang
- Fritz-Haber-Institut der Max-Planck-Gesellschaft Faradayweg 4-6, 14195 Berlin, Germany
| | - Kristen M Burson
- Fritz-Haber-Institut der Max-Planck-Gesellschaft Faradayweg 4-6, 14195 Berlin, Germany
| | - Marc-Georg Willinger
- Fritz-Haber-Institut der Max-Planck-Gesellschaft Faradayweg 4-6, 14195 Berlin, Germany
| | - Markus Heyde
- Fritz-Haber-Institut der Max-Planck-Gesellschaft Faradayweg 4-6, 14195 Berlin, Germany
| | - Robert Schlögl
- Fritz-Haber-Institut der Max-Planck-Gesellschaft Faradayweg 4-6, 14195 Berlin, Germany
| | - Hans-Joachim Freund
- Fritz-Haber-Institut der Max-Planck-Gesellschaft Faradayweg 4-6, 14195 Berlin, Germany
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14
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Freund HJ. Models for heterogeneous catalysts: studies at the atomic level. RENDICONTI LINCEI-SCIENZE FISICHE E NATURALI 2016. [DOI: 10.1007/s12210-016-0560-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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15
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Freund HJ. The Surface Science of Catalysis and More, Using Ultrathin Oxide Films as Templates: A Perspective. J Am Chem Soc 2016; 138:8985-96. [PMID: 27380426 DOI: 10.1021/jacs.6b05565] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Surface science has had a major influence on the understanding of processes at surfaces relevant to catalysis. Real catalysts are complex materials, and in order to approach an understanding at the atomic level, it is necessary in a first step to drastically reduce complexity and then systematically increase it again in order to capture the various structural and electronic factors important for the function of the real catalytic material. The use of thin oxide films as templates to mimic three-dimensional supports as such or for metal particles as well as to model charge barriers turns out to be appropriate to approach an understanding of metal-support interactions. Thin oxide films also exhibit properties in their own right that turn out to be relevant in catalysis. Thin oxide film formation may also be used to create unique two-dimensional materials. The present perspective introduces the subject using case studies and indicates possible routes to further apply this approach successfully.
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Affiliation(s)
- Hans-Joachim Freund
- Fritz-Haber-Institut der Max-Planck Gesellschaft , Department of Chemical Physics, Faradayweg 4-6, 14195 Berlin, Germany
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16
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Paier J. Hybrid Density Functionals Applied to Complex Solid Catalysts: Successes, Limitations, and Prospects. Catal Letters 2016. [DOI: 10.1007/s10562-016-1735-4] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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17
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Tissot H, Li L, Shaikhutdinov S, Freund HJ. Preparation and structure of Fe-containing aluminosilicate thin films. Phys Chem Chem Phys 2016; 18:25027-25035. [PMID: 27711438 DOI: 10.1039/c6cp03460h] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Fe-containing aluminosilicate thin films exhibit a phase separation, which makes the formation of in-frame Fe in aluminosilicates (zeolites) unfavourable.
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Affiliation(s)
- Héloïse Tissot
- Department of Chemical Physics
- Fritz Haber Institute
- 14195 Berlin
- Germany
| | - Linfei Li
- Department of Chemical Physics
- Fritz Haber Institute
- 14195 Berlin
- Germany
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