1
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Liu Q, Xu W, Huang H, Shou H, Low J, Dai Y, Gong W, Li Y, Duan D, Zhang W, Jiang Y, Zhang G, Cao D, Wei K, Long R, Chen S, Song L, Xiong Y. Spectroscopic visualization of reversible hydrogen spillover between palladium and metal-organic frameworks toward catalytic semihydrogenation. Nat Commun 2024; 15:2562. [PMID: 38519485 PMCID: PMC10959988 DOI: 10.1038/s41467-024-46923-3] [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: 05/18/2023] [Accepted: 03/12/2024] [Indexed: 03/25/2024] Open
Abstract
Hydrogen spillover widely occurs in a variety of hydrogen-involved chemical and physical processes. Recently, metal-organic frameworks have been extensively explored for their integration with noble metals toward various hydrogen-related applications, however, the hydrogen spillover in metal/MOF composite structures remains largely elusive given the challenges of collecting direct evidence due to system complexity. Here we show an elaborate strategy of modular signal amplification to decouple the behavior of hydrogen spillover in each functional regime, enabling spectroscopic visualization for interfacial dynamic processes. Remarkably, we successfully depict a full picture for dynamic replenishment of surface hydrogen atoms under interfacial hydrogen spillover by quick-scanning extended X-ray absorption fine structure, in situ surface-enhanced Raman spectroscopy and ab initio molecular dynamics calculation. With interfacial hydrogen spillover, Pd/ZIF-8 catalyst shows unique alkyne semihydrogenation activity and selectivity for alkynes molecules. The methodology demonstrated in this study also provides a basis for further exploration of interfacial species migration.
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Affiliation(s)
- Qiaoxi Liu
- Hefei National Research Center for Physical Sciences at the Microscale, Key Laboratory of Precision and Intelligent Chemistry, School of Chemistry and Materials Science, School of Nuclear Science and Technology, National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui, 230026, China
- Suzhou Institute for Advanced Research, University of Science and Technology of China, Suzhou, Jiangsu, 215123, China
| | - Wenjie Xu
- Hefei National Research Center for Physical Sciences at the Microscale, Key Laboratory of Precision and Intelligent Chemistry, School of Chemistry and Materials Science, School of Nuclear Science and Technology, National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Hao Huang
- Hefei National Research Center for Physical Sciences at the Microscale, Key Laboratory of Precision and Intelligent Chemistry, School of Chemistry and Materials Science, School of Nuclear Science and Technology, National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Hongwei Shou
- Hefei National Research Center for Physical Sciences at the Microscale, Key Laboratory of Precision and Intelligent Chemistry, School of Chemistry and Materials Science, School of Nuclear Science and Technology, National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Jingxiang Low
- Hefei National Research Center for Physical Sciences at the Microscale, Key Laboratory of Precision and Intelligent Chemistry, School of Chemistry and Materials Science, School of Nuclear Science and Technology, National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Yitao Dai
- Hefei National Research Center for Physical Sciences at the Microscale, Key Laboratory of Precision and Intelligent Chemistry, School of Chemistry and Materials Science, School of Nuclear Science and Technology, National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Wanbing Gong
- Hefei National Research Center for Physical Sciences at the Microscale, Key Laboratory of Precision and Intelligent Chemistry, School of Chemistry and Materials Science, School of Nuclear Science and Technology, National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Youyou Li
- Hefei National Research Center for Physical Sciences at the Microscale, Key Laboratory of Precision and Intelligent Chemistry, School of Chemistry and Materials Science, School of Nuclear Science and Technology, National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Delong Duan
- Hefei National Research Center for Physical Sciences at the Microscale, Key Laboratory of Precision and Intelligent Chemistry, School of Chemistry and Materials Science, School of Nuclear Science and Technology, National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Wenqing Zhang
- Hefei National Research Center for Physical Sciences at the Microscale, Key Laboratory of Precision and Intelligent Chemistry, School of Chemistry and Materials Science, School of Nuclear Science and Technology, National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Yawen Jiang
- Hefei National Research Center for Physical Sciences at the Microscale, Key Laboratory of Precision and Intelligent Chemistry, School of Chemistry and Materials Science, School of Nuclear Science and Technology, National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Guikai Zhang
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China
| | - Dengfeng Cao
- Hefei National Research Center for Physical Sciences at the Microscale, Key Laboratory of Precision and Intelligent Chemistry, School of Chemistry and Materials Science, School of Nuclear Science and Technology, National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Kecheng Wei
- Hefei National Research Center for Physical Sciences at the Microscale, Key Laboratory of Precision and Intelligent Chemistry, School of Chemistry and Materials Science, School of Nuclear Science and Technology, National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Ran Long
- Hefei National Research Center for Physical Sciences at the Microscale, Key Laboratory of Precision and Intelligent Chemistry, School of Chemistry and Materials Science, School of Nuclear Science and Technology, National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui, 230026, China.
| | - Shuangming Chen
- Hefei National Research Center for Physical Sciences at the Microscale, Key Laboratory of Precision and Intelligent Chemistry, School of Chemistry and Materials Science, School of Nuclear Science and Technology, National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Li Song
- Hefei National Research Center for Physical Sciences at the Microscale, Key Laboratory of Precision and Intelligent Chemistry, School of Chemistry and Materials Science, School of Nuclear Science and Technology, National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Yujie Xiong
- Hefei National Research Center for Physical Sciences at the Microscale, Key Laboratory of Precision and Intelligent Chemistry, School of Chemistry and Materials Science, School of Nuclear Science and Technology, National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui, 230026, China.
- Suzhou Institute for Advanced Research, University of Science and Technology of China, Suzhou, Jiangsu, 215123, China.
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Engineering Research Center of Carbon Neutrality, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui, 241000, China.
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2
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Xie B, Ding B, Mao P, Wang Y, Liu Y, Chen M, Zhou C, Wen HM, Xia S, Han M, Palmer RE, Wang G, Hu J. Metal Nanocluster-Metal Organic Framework-Polymer Hybrid Nanomaterials for Improved Hydrogen Detection. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2200634. [PMID: 35435324 DOI: 10.1002/smll.202200634] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 03/26/2022] [Indexed: 06/14/2023]
Abstract
The development of hydrogen sensors is of paramount importance for timely leak detection and remains a crucial unmet need. Palladium-based materials, well known as hydrogen sensors, still suffer from poisoning and deactivation. Here, a hybrid hydrogen sensor consisting of a Pd nanocluster (NC) film, a metal-organic framework (MOF), and a polymer, are proposed. The polymer coating, as a protection layer, endows the sensor with excellent H2 selectivity and CO-poisoning resistance. The MOF serves as an interface layer between the Pd NC film and the polymer layer, which alters the nature of the interaction with hydrogen and leads to significant sensing performance improvements, owing to the interfacial electronic coupling between Pd NCs and the MOF. The strategy overcomes the shortcomings of retarded response speed and degraded sensitivity induced by the polymer coating of a Pd NC film-polymer hybrid system. This is the first exhibition of a hydrogen-sensing enhancement mechanism achieved by engineering the electronic coupling between Pd and a MOF. The work establishes a deep understanding of the hydrogen-sensing enhancement mechanism at the nanoscale and provides a feasible strategy to engineer next-generation gas-sensing nanodevices with superior sensing figures of merit via hybrid material systems.
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Affiliation(s)
- Bo Xie
- College of Chemical Engineering, Zhejiang University of Technology, Zhejiang, 310014, P. R. China
| | - Bosheng Ding
- College of Chemical Engineering, Zhejiang University of Technology, Zhejiang, 310014, P. R. China
| | - Peng Mao
- National Laboratory of Solid State Microstructures, Nanjing University, Nanjing, 210093, P. R. China
- Department of Physics, University of Hong Kong, Hong Kong, 999077, China
| | - Ying Wang
- College of Chemical Engineering, Zhejiang University of Technology, Zhejiang, 310014, P. R. China
| | - Yini Liu
- College of Chemical Engineering, Zhejiang University of Technology, Zhejiang, 310014, P. R. China
| | - Minrui Chen
- College of Chemical Engineering, Zhejiang University of Technology, Zhejiang, 310014, P. R. China
| | - Changjiang Zhou
- College of Chemical Engineering, Zhejiang University of Technology, Zhejiang, 310014, P. R. China
| | - Hui-Min Wen
- College of Chemical Engineering, Zhejiang University of Technology, Zhejiang, 310014, P. R. China
| | - Shengjie Xia
- College of Chemical Engineering, Zhejiang University of Technology, Zhejiang, 310014, P. R. China
| | - Min Han
- National Laboratory of Solid State Microstructures, Nanjing University, Nanjing, 210093, P. R. China
| | - Richard E Palmer
- College of Engineering, Bay Campus, Swansea University, Swansea, SA1 8EN, UK
| | - Guanghou Wang
- National Laboratory of Solid State Microstructures, Nanjing University, Nanjing, 210093, P. R. China
| | - Jun Hu
- College of Chemical Engineering, Zhejiang University of Technology, Zhejiang, 310014, P. R. China
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3
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Wu D, Kusada K, Nanba Y, Koyama M, Yamamoto T, Toriyama T, Matsumura S, Seo O, Gueye I, Kim J, Rosantha Kumara LS, Sakata O, Kawaguchi S, Kubota Y, Kitagawa H. Noble-Metal High-Entropy-Alloy Nanoparticles: Atomic-Level Insight into the Electronic Structure. J Am Chem Soc 2022; 144:3365-3369. [PMID: 35166532 DOI: 10.1021/jacs.1c13616] [Citation(s) in RCA: 48] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The compositional space of high-entropy-alloy nanoparticles (HEA NPs) significantly expands the diversity of the materials library. Every atom in HEA NPs has a different elemental coordination environment, which requires knowledge of the local electronic structure at an atomic level. However, such structure has not been disclosed experimentally or theoretically. We synthesized HEA NPs composed of all eight noble-metal-group elements (NM-HEA) for the first time. Their electronic structure was revealed by hard X-ray photoelectron spectroscopy and density function theory calculations with NP models. The NM-HEA NPs have a lower degeneracy in energy level compared with the monometallic NPs, which is a common feature of HEA NPs. The local density of states (LDOS) of every surface atom was first revealed. Some atoms of the same constituent element in HEA NPs have different LDOS profiles, whereas atoms of other elements have similar LDOS profiles. In other words, one atom in HEA loses its elemental identity and it may be possible to create an ideal LDOS by adjusting the neighboring atoms. The tendency of the electronic structure change was shown by supervised learning. The NM-HEA NPs showed 10.8-times higher intrinsic activity for hydrogen evolution reaction than commercial Pt/C, which is one of the best catalysts.
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Affiliation(s)
- Dongshuang Wu
- Division of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan
| | - Kohei Kusada
- Division of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan.,The HAKUBI Center for Advanced Research, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan.,JST-PRESTO, Honcho 4-1-8, Kawaguchi, Saitama, 332-0012 Japan
| | - Yusuke Nanba
- Research Initiative for Supra-Materials, Shinshu University, 4-17-1 Wakasato, Nagano 380-8553, Japan
| | - Michihisa Koyama
- Research Initiative for Supra-Materials, Shinshu University, 4-17-1 Wakasato, Nagano 380-8553, Japan.,Open Innovation Institute, Kyoto University, Yoshida-honmachi, Sakyo-ku, Kyoto 606-8501, Japan
| | - Tomokazu Yamamoto
- The Ultramicroscopy Research Center, Kyushu Uiversity, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Takaaki Toriyama
- The Ultramicroscopy Research Center, Kyushu Uiversity, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Syo Matsumura
- The Ultramicroscopy Research Center, Kyushu Uiversity, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.,Department of Applied Quantum Physics and Nuclear Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Okkyun Seo
- Center for Synchrotron Radiation Research, Japan Synchrotron Radiation Research Institute (JASRI) SPring-8, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan.,Research Network and Facility Services Division, National Institute for Materials Science (NIMS), 1-1-1 Kouto, Sayo-cho, Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan
| | - Ibrahima Gueye
- Research Network and Facility Services Division, National Institute for Materials Science (NIMS), 1-1-1 Kouto, Sayo-cho, Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan
| | - Jaemyung Kim
- Research Network and Facility Services Division, National Institute for Materials Science (NIMS), 1-1-1 Kouto, Sayo-cho, Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan
| | - Loku Singgapulige Rosantha Kumara
- Center for Synchrotron Radiation Research, Japan Synchrotron Radiation Research Institute (JASRI) SPring-8, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan.,Research Network and Facility Services Division, National Institute for Materials Science (NIMS), 1-1-1 Kouto, Sayo-cho, Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan
| | - Osami Sakata
- Center for Synchrotron Radiation Research, Japan Synchrotron Radiation Research Institute (JASRI) SPring-8, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan.,Research Network and Facility Services Division, National Institute for Materials Science (NIMS), 1-1-1 Kouto, Sayo-cho, Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan
| | - Shogo Kawaguchi
- Center for Synchrotron Radiation Research, Japan Synchrotron Radiation Research Institute (JASRI) SPring-8, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan
| | - Yoshiki Kubota
- Department of Physical Science, Osaka Prefecture University 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan
| | - Hiroshi Kitagawa
- Division of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan
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4
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Ament K, Kobayashi H, Kusada K, Breu J, Kitagawa H. Enhancing Hydrogen Storage Capacity of Pd Nanoparticles by Sandwiching between Inorganic Nanosheets. Z Anorg Allg Chem 2022. [DOI: 10.1002/zaac.202100370] [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)
- Kevin Ament
- University of Bayreuth: Universitat Bayreuth Inorganic Chemistry Universitätsstraße 30 95440 Bayreuth GERMANY
| | - Hirokazu Kobayashi
- Kyoto University Department of Chemistry Kitashirakawa-Oiwakecho, Sakyo-ku 606-8502 Kyoto JAPAN
| | - Kohei Kusada
- Kyoto University Department of Chemistry Kitashirakawa-Oiwakecho, Sakyo-ku 606-8502 Kyoto JAPAN
| | - Josef Breu
- Universität Bayreuth Lehrstuhl für Anorganische Chemie I Universitatsstraße 30 95440 Bayreuth GERMANY
| | - Hiroshi Kitagawa
- Kyoto University Department of Chemistry Kitashirakawa-Oiwakecho, Sakyo-ku 606-8502 Kyoto JAPAN
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5
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Yuyama S, Kaneko H. Correlation between the Metal and Organic Components, Structure Property, and Gas-Adsorption Capacity of Metal-Organic Frameworks. J Chem Inf Model 2021; 61:5785-5792. [PMID: 34898202 DOI: 10.1021/acs.jcim.1c01205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Metal-organic frameworks (MOFs) are materials in which metals and organic compounds form crystalline and porous structures. Previous studies have investigated the relationships between the structure properties and physical properties of MOFs through molecular simulations, but the overall relationships in MOFs, including the relationships between the metals and organic components and the experimentally measured physical properties, have not been clarified. In this study, we developed two regression models between three elements in MOFs: the components, structure properties, and gas-adsorption capacities as physical properties. Using a nonlinear regression analysis method, we succeeded in predicting the structure properties from the components and the physical properties from the structure properties.
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Affiliation(s)
- Shunsuke Yuyama
- Department of Applied Chemistry, School of Science and Technology, Meiji University, 1-1-1 Higashi-Mita, Tama-ku, Kawasaki, Kanagawa 214-8571, Japan
| | - Hiromasa Kaneko
- Department of Applied Chemistry, School of Science and Technology, Meiji University, 1-1-1 Higashi-Mita, Tama-ku, Kawasaki, Kanagawa 214-8571, Japan
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6
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Ament K, Köwitsch N, Hou D, Götsch T, Kröhnert J, Heard CJ, Trunschke A, Lunkenbein T, Armbrüster M, Breu J. Nanoparticles Supported on Sub-Nanometer Oxide Films: Scaling Model Systems to Bulk Materials. Angew Chem Int Ed Engl 2021; 60:5890-5897. [PMID: 33289925 PMCID: PMC7986867 DOI: 10.1002/anie.202015138] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Indexed: 11/07/2022]
Abstract
Ultrathin layers of oxides deposited on atomically flat metal surfaces have been shown to significantly influence the electronic structure of the underlying metal, which in turn alters the catalytic performance. Upscaling of the specifically designed architectures as required for technical utilization of the effect has yet not been achieved. Here, we apply liquid crystalline phases of fluorohectorite nanosheets to fabricate such architectures in bulk. Synthetic sodium fluorohectorite, a layered silicate, when immersed into water spontaneously and repulsively swells to produce nematic suspensions of individual negatively charged nanosheets separated to more than 60 nm, while retaining parallel orientation. Into these galleries oppositely charged palladium nanoparticles were intercalated whereupon the galleries collapse. Individual and separated Pd nanoparticles were thus captured and sandwiched between nanosheets. As suggested by the model systems, the resulting catalyst performed better in the oxidation of carbon monoxide than the same Pd nanoparticles supported on external surfaces of hectorite or on a conventional Al2 O3 support. XPS confirmed a shift of Pd 3d electrons to higher energies upon coverage of Pd nanoparticles with nanosheets to which we attribute the improved catalytic performance. DFT calculations showed increasing positive charge on Pd weakened CO adsorption and this way damped CO poisoning.
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Affiliation(s)
- Kevin Ament
- Bavarian Polymer Institute and Department of ChemistryUniversity of BayreuthUniversitätsstraße 3095447BayreuthGermany
| | - Nicolas Köwitsch
- Faculty of Natural SciencesInstitute of ChemistryMaterials for Innovative Energy ConceptsChemnitz University of TechnologyStraße der Nationen 6209111ChemnitzGermany
| | - Dianwei Hou
- Department of Physical and Macromolecular ChemistryCharles UniversityHlavova 8128 00Prague 2Czech Republic
| | - Thomas Götsch
- Department of Inorganic ChemistryFritz-Haber-Institut der Max-Planck-GesellschaftFaradayweg 4–614195BerlinGermany
| | - Jutta Kröhnert
- Department of Inorganic ChemistryFritz-Haber-Institut der Max-Planck-GesellschaftFaradayweg 4–614195BerlinGermany
| | - Christopher J. Heard
- Department of Physical and Macromolecular ChemistryCharles UniversityHlavova 8128 00Prague 2Czech Republic
| | - Annette Trunschke
- Department of Inorganic ChemistryFritz-Haber-Institut der Max-Planck-GesellschaftFaradayweg 4–614195BerlinGermany
| | - Thomas Lunkenbein
- Department of Inorganic ChemistryFritz-Haber-Institut der Max-Planck-GesellschaftFaradayweg 4–614195BerlinGermany
| | - Marc Armbrüster
- Faculty of Natural SciencesInstitute of ChemistryMaterials for Innovative Energy ConceptsChemnitz University of TechnologyStraße der Nationen 6209111ChemnitzGermany
| | - Josef Breu
- Bavarian Polymer Institute and Department of ChemistryUniversity of BayreuthUniversitätsstraße 3095447BayreuthGermany
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7
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Ament K, Köwitsch N, Hou D, Götsch T, Kröhnert J, Heard CJ, Trunschke A, Lunkenbein T, Armbrüster M, Breu J. Nanopartikel auf subnanometer dünnen oxidischen Filmen: Skalierung von Modellsystemen. ANGEWANDTE CHEMIE (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 133:5954-5961. [PMID: 38505494 PMCID: PMC10946923 DOI: 10.1002/ange.202015138] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Indexed: 03/21/2024]
Abstract
AbstractDurch die Abscheidung von ultradünnen Oxidschichten auf atomar‐flachen Metalloberflächen konnte die elektronische Struktur des Metalls und hierdurch dessen katalytische Aktivität beeinflusst werden. Die Skalierung dieser Architekturen für eine technische Nutzbarkeit war bisher aber kaum möglich. Durch die Verwendung einer flüssigkristallinen Phase aus Fluorhectorit‐Nanoschichten, können wir solche Architekturen in skalierbarem Maßstab imitieren. Synthetischer Natriumfluorhectorit (NaHec) quillt spontan und repulsiv in Wasser zu einer nematischen flüssigkristallinen Phase aus individuellen Nanoschichten. Diese tragen eine permanente negative Schichtladung, sodass selbst bei einer Separation von über 60 nm eine parallele Anordnung der Schichten behalten wird. Zwischen diesen Nanoschichten können Palladium‐Nanopartikel mit entgegengesetzter Ladung eingelagert werden, wodurch die nematische Phase kollabiert und separierte Nanopartikel zwischen den Schichten fixiert werden. Die Aktivität zur CO‐Oxidation des so entstandenen Katalysators war höher als z. B. die der gleichen Nanopartikel auf konventionellem Al2O3 oder der externen Oberfläche von NaHec. Durch Röntgenphotoelektronenspektroskopie konnte eine Verschiebung der Pd‐3d‐Elektronen zu höheren Bindungsenergien beobachtet werden, womit die erhöhte Aktivität erklärt werden kann. Berechnungen zeigten, dass mit erhöhter positiver Ladung des Pd die Adsorptionsstärke von CO erniedrigt und damit auch die Vergiftung durch CO vermindert wird.
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Affiliation(s)
- Kevin Ament
- Bavarian Polymer Institute and Department of ChemistryUniversity of BayreuthUniversitätsstraße 3095447BayreuthDeutschland
| | - Nicolas Köwitsch
- Faculty of Natural SciencesInstitute of ChemistryMaterials for Innovative Energy ConceptsChemnitz University of TechnologyStraße der Nationen 6209111ChemnitzDeutschland
| | - Dianwei Hou
- Department of Physical and Macromolecular ChemistryCharles UniversityHlavova 8128 00Prague 2Czech Republic
| | - Thomas Götsch
- Department of Inorganic ChemistryFritz-Haber-Institut der Max-Planck-GesellschaftFaradayweg 4–614195BerlinDeutschland
| | - Jutta Kröhnert
- Department of Inorganic ChemistryFritz-Haber-Institut der Max-Planck-GesellschaftFaradayweg 4–614195BerlinDeutschland
| | - Christopher J. Heard
- Department of Physical and Macromolecular ChemistryCharles UniversityHlavova 8128 00Prague 2Czech Republic
| | - Annette Trunschke
- Department of Inorganic ChemistryFritz-Haber-Institut der Max-Planck-GesellschaftFaradayweg 4–614195BerlinDeutschland
| | - Thomas Lunkenbein
- Department of Inorganic ChemistryFritz-Haber-Institut der Max-Planck-GesellschaftFaradayweg 4–614195BerlinDeutschland
| | - Marc Armbrüster
- Faculty of Natural SciencesInstitute of ChemistryMaterials for Innovative Energy ConceptsChemnitz University of TechnologyStraße der Nationen 6209111ChemnitzDeutschland
| | - Josef Breu
- Bavarian Polymer Institute and Department of ChemistryUniversity of BayreuthUniversitätsstraße 3095447BayreuthDeutschland
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8
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Sutar P, Bakuru VR, Yadav P, Laha S, Kalidindi SB, Maji TK. Nanocomposite Hydrogel of Pd@ZIF‐8 and Laponite
®
: Size‐Selective Hydrogenation Catalyst under Mild Conditions. Chemistry 2021; 27:3268-3272. [DOI: 10.1002/chem.202004345] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Indexed: 11/12/2022]
Affiliation(s)
- Papri Sutar
- Molecular Materials Laboratory Chemistry and Physics of Materials Unit School of Advanced Materials (SAMat) Jawaharlal Nehru Centre for Advanced Scientific Research Jakkur Bangalore 560064 India
| | - Vasudeva Rao Bakuru
- Molecular Materials Laboratory Chemistry and Physics of Materials Unit School of Advanced Materials (SAMat) Jawaharlal Nehru Centre for Advanced Scientific Research Jakkur Bangalore 560064 India
- Materials Science Division Poornaprajna Institute of Scientific Research Devanahalli Bangalore Rural 562164 India
| | - Pooja Yadav
- Molecular Materials Laboratory Chemistry and Physics of Materials Unit School of Advanced Materials (SAMat) Jawaharlal Nehru Centre for Advanced Scientific Research Jakkur Bangalore 560064 India
| | - Subhajit Laha
- Molecular Materials Laboratory Chemistry and Physics of Materials Unit School of Advanced Materials (SAMat) Jawaharlal Nehru Centre for Advanced Scientific Research Jakkur Bangalore 560064 India
| | - Suresh Babu Kalidindi
- Inorganic and Analytical Chemistry Department School of Chemistry Andhra University Visakhapatnam 530003 India
| | - Tapas Kumar Maji
- Molecular Materials Laboratory Chemistry and Physics of Materials Unit School of Advanced Materials (SAMat) Jawaharlal Nehru Centre for Advanced Scientific Research Jakkur Bangalore 560064 India
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9
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Rivera-Torrente M, Mandemaker LDB, Filez M, Delen G, Seoane B, Meirer F, Weckhuysen BM. Spectroscopy, microscopy, diffraction and scattering of archetypal MOFs: formation, metal sites in catalysis and thin films. Chem Soc Rev 2020; 49:6694-6732. [DOI: 10.1039/d0cs00635a] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A comprehensive overview of characterization tools for the analysis of well-known metal–organic frameworks and physico-chemical phenomena associated to their applications.
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Affiliation(s)
- Miguel Rivera-Torrente
- Inorganic Chemistry and Catalysis
- Debye Institute for Nanomaterials Science
- Utrecht University
- 3584 CG Utrecht
- The Netherlands
| | - Laurens D. B. Mandemaker
- Inorganic Chemistry and Catalysis
- Debye Institute for Nanomaterials Science
- Utrecht University
- 3584 CG Utrecht
- The Netherlands
| | - Matthias Filez
- Inorganic Chemistry and Catalysis
- Debye Institute for Nanomaterials Science
- Utrecht University
- 3584 CG Utrecht
- The Netherlands
| | - Guusje Delen
- Inorganic Chemistry and Catalysis
- Debye Institute for Nanomaterials Science
- Utrecht University
- 3584 CG Utrecht
- The Netherlands
| | - Beatriz Seoane
- Inorganic Chemistry and Catalysis
- Debye Institute for Nanomaterials Science
- Utrecht University
- 3584 CG Utrecht
- The Netherlands
| | - Florian Meirer
- Inorganic Chemistry and Catalysis
- Debye Institute for Nanomaterials Science
- Utrecht University
- 3584 CG Utrecht
- The Netherlands
| | - Bert M. Weckhuysen
- Inorganic Chemistry and Catalysis
- Debye Institute for Nanomaterials Science
- Utrecht University
- 3584 CG Utrecht
- The Netherlands
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10
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Dekura S, Kobayashi H, Kusada K, Kitagawa H. Hydrogen in Palladium and Storage Properties of Related Nanomaterials: Size, Shape, Alloying, and Metal-Organic Framework Coating Effects. Chemphyschem 2019; 20:1158-1176. [PMID: 30887646 DOI: 10.1002/cphc.201900109] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Indexed: 11/07/2022]
Abstract
One of the key issues for an upcoming hydrogen energy-based society is to develop highly efficient hydrogen-storage materials. Among the many hydrogen-storage materials reported, transition-metal hydrides can reversibly absorb and desorb hydrogen, and have thus attracted much interest from fundamental science to applications. In particular, the Pd-H system is a simple and classical metal-hydrogen system, providing a platform suitable for a thorough understanding of ways of controlling the hydrogen-storage properties of materials. By contrast, metal nanoparticles have been recently studied for hydrogen storage because of their unique properties and the degrees of freedom which cannot be observed in bulk, i. e., the size, shape, alloying, and surface coating. In this review, we overview the effects of such degrees of freedom on the hydrogen-storage properties of Pd-related nanomaterials, based on the fundamental science of bulk Pd-H. We shall show that sufficiently understanding the nature of the interaction between hydrogen and host materials enables us to control the hydrogen-storage properties though the electronic-structure control of materials.
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Affiliation(s)
- Shun Dekura
- Division of Chemistry, Graduate School of Science, Kyoto University Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto, 606-8502, Japan.,Current address: Institute for Solid State Physics, The University of Tokyo 5-1-5 Kashiwanoha, Kashiwa, Chiba, 277-8581, Japan
| | - Hirokazu Kobayashi
- Division of Chemistry, Graduate School of Science, Kyoto University Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto, 606-8502, Japan.,Precursory Research for Embryonic Science and Technology (PRESTO), Japan Science and Technology Agency (JST) Honcho 4-1-8, Kawaguchi, Saitama, 332-0012, Japan
| | - Kohei Kusada
- Division of Chemistry, Graduate School of Science, Kyoto University Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Hiroshi Kitagawa
- Division of Chemistry, Graduate School of Science, Kyoto University Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto, 606-8502, Japan.,Inamori Frontier Research Center, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan.,Institute for Integrated Cell-Material Sciences (iCeMS), Kyoto University, Yoshida, Sakyo-ku, Kyoto, 606-8501, Japan
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11
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Bakuru VR, DMello ME, Kalidindi SB. Metal-Organic Frameworks for Hydrogen Energy Applications: Advances and Challenges. Chemphyschem 2019; 20:1177-1215. [PMID: 30768752 DOI: 10.1002/cphc.201801147] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2018] [Revised: 02/09/2019] [Indexed: 12/19/2022]
Abstract
Hydrogen is in limelight as an environmental benign alternative to fossil fuels from few decades. To bring the concept of hydrogen economy from academic labs to real world certain challenges need to be addressed in the areas of hydrogen production, storage, and its use in fuel cells. Crystalline metal-organic frameworks (MOFs) with unprecedented surface areas are considered as potential materials for addressing the challenges in each of these three areas. MOFs combine the diverse chemistry of molecular linkers with their ability to coordinate to metal ions and clusters. The unabated flurry of research using MOFs in the context of hydrogen energy related activities in the past decade demonstrates the versatility of this class of materials. In the present review, we discuss major strategical advances that have taken place in the field of "hydrogen economy and MOFs" and point out issues requiring further attention.
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Affiliation(s)
- Vasudeva Rao Bakuru
- Materials science division, Poornaprajna Institute of Scientific Research Devanahalli, Bangalore Rural, 576164, India
| | - Marilyn Esclance DMello
- Materials science division, Poornaprajna Institute of Scientific Research Devanahalli, Bangalore Rural, 576164, India
| | - Suresh Babu Kalidindi
- Materials science division, Poornaprajna Institute of Scientific Research Devanahalli, Bangalore Rural, 576164, India
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12
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Bakuru VR, Davis D, Kalidindi SB. Cooperative catalysis at the metal–MOF interface: hydrodeoxygenation of vanillin over Pd nanoparticles covered with a UiO-66(Hf) MOF. Dalton Trans 2019; 48:8573-8577. [DOI: 10.1039/c9dt01371g] [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
Cooperative catalysis has been demonstrated over metal–MOF hybrids for the conversion of vanillin (biomass based platform molecules) into value-added 2-methoxy-4-methylphenol.
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Affiliation(s)
- Vasudeva Rao Bakuru
- Materials Science Division
- Poornaprajna Institute of Scientific Research
- Bangalore Rural-562164
- India
- Manipal Academy of Higher Education
| | - Deljo Davis
- Materials Science Division
- Poornaprajna Institute of Scientific Research
- Bangalore Rural-562164
- India
| | - Suresh Babu Kalidindi
- Materials Science Division
- Poornaprajna Institute of Scientific Research
- Bangalore Rural-562164
- India
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