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Guevara-Vela JM, Gallegos M, Rocha-Rinza T, Muñoz-Castro Á, Kessler PLR, Martín Pendás Á. New global minimum conformers for the Pt 19 and Pt 20 clusters: low symmetric species featuring different active sites. J Mol Model 2024; 30:310. [PMID: 39153076 PMCID: PMC11330413 DOI: 10.1007/s00894-024-06099-5] [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: 07/16/2024] [Accepted: 07/30/2024] [Indexed: 08/19/2024]
Abstract
CONTEXT The study of platinum (Pt) clusters and nanoparticles is essential due to their extensive range of potential technological applications, particularly in catalysis. The electronic properties that yield optimal catalytic performance at the nanoscale are significantly influenced by the size and structure of Pt clusters. This research aimed to identify the lowest-energy conformers for Pt18 , Pt19 , and Pt20 species using Density Functional Theory (DFT). We discovered new low-symmetry conformers for Pt19 and Pt20 , which are 3.0 and 1.0 kcal/mol more stable, respectively, than previously reported structures. Our study highlights the importance of using density functional approximations that incorporate moderate levels of exact Hartree-Fock exchange, alongside basis sets of at least quadruple-zeta quality. The resulting structures are asymmetric with varying active sites, as evidenced by sigma hole analysis on the electrostatic potential surface. This suggests a potential correlation between electronic structure and catalytic properties, warranting further investigation. METHODS An equivariant graph neural network interatomic potential (NequIP) within the Atomic Simulation Environment suite (ASE) was used to provide initial geometries of the aggregates under study. DFT calculations were performed with the ORCA 5 package, using functional approximations that included Generalized Gradient Approximation (PBE), meta-GGA (TPSS, M06-L), hybrid (PBE0, PBEh), meta-GGA hybrid (TPSSh), and range-separated hybrid ( ω B97x) functionals. Def2-TZVP and Def2-QZVP as well as members of the cc-pwCVXZ-PP family to check basis set convergence were used. QTAIM calculations were performed using the AIMAll suite. Structures were visualized with the AVOGADRO code.
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Affiliation(s)
- José Manuel Guevara-Vela
- Departamento de Química Física Aplicada, Universidad Autónoma de Madrid, C. Francisco Tomás y Valiente, 7, Madrid, 28049, Spain
| | - Miguel Gallegos
- Departamento de Química Física y Analítica, Universidad de Oviedo, Av. Julián Clavería, 8, Oviedo, 33006, Asturias, Spain
| | - Tomás Rocha-Rinza
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, Delegación Coyoacán, 04510, Mexico City, Mexico
| | - Álvaro Muñoz-Castro
- Facultad de Ingeniería, Arquitectura y Diseño, Universidad San Sebastián, Bellavista 7, Santiago, 8420524, RM, Chile
| | - Peter L Rodríguez Kessler
- Centro de Investigaciones en Óptica A.C., Loma del Bosque 115, Col. Lomas del Campestre, León, 37150, Guanajuato, Mexico.
| | - Ángel Martín Pendás
- Departamento de Química Física y Analítica, Universidad de Oviedo, Av. Julián Clavería, 8, Oviedo, 33006, Asturias, Spain.
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2
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Imaoka T, Antoku N, Narita Y, Nishiyama K, Takada K, Saito S, Tanaka M, Okochi M, Huda M, Tanabe M, Chun WJ, Yamamoto K. Synthesis of atom-precise supported metal clusters via solid-phase peptide synthesis. Chem Sci 2024:d4sc04400b. [PMID: 39246354 PMCID: PMC11376025 DOI: 10.1039/d4sc04400b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2024] [Accepted: 08/14/2024] [Indexed: 09/10/2024] Open
Abstract
While the utility of supported metal and alloy clusters as catalytic materials is widely recognized, their precise synthesis remains a challenge. Here, we demonstrate the precise synthesis of these clusters via metallopeptides. This technique is characterized by its ability to be automated using Merrifield's solid-phase peptide synthesis (SPPS). Metallopeptides with iron and platinum complexes in their side chains have been prepared using this SPPS. These metallopeptides were successfully transformed into the corresponding supported metal clusters by heating in a hydrogen atmosphere.
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Affiliation(s)
- Takane Imaoka
- Laboratory for Chemistry and Life Science, Tokyo Institute of Technology Yokohama 226-8503 Japan
- Department of Chemical Science and Engineering, Tokyo Institute of Technology Tokyo 152-8552 Japan
| | - Nanami Antoku
- Laboratory for Chemistry and Life Science, Tokyo Institute of Technology Yokohama 226-8503 Japan
- Department of Chemical Science and Engineering, Tokyo Institute of Technology Tokyo 152-8552 Japan
| | - Yusuke Narita
- Laboratory for Chemistry and Life Science, Tokyo Institute of Technology Yokohama 226-8503 Japan
- Department of Chemical Science and Engineering, Tokyo Institute of Technology Tokyo 152-8552 Japan
| | - Kazuki Nishiyama
- Laboratory for Chemistry and Life Science, Tokyo Institute of Technology Yokohama 226-8503 Japan
- Department of Chemical Science and Engineering, Tokyo Institute of Technology Tokyo 152-8552 Japan
| | - Kenji Takada
- Laboratory for Chemistry and Life Science, Tokyo Institute of Technology Yokohama 226-8503 Japan
| | - Shogo Saito
- Department of Chemical Science and Engineering, Tokyo Institute of Technology Tokyo 152-8552 Japan
| | - Masayoshi Tanaka
- Department of Chemical Science and Engineering, Tokyo Institute of Technology Tokyo 152-8552 Japan
| | - Mina Okochi
- Department of Chemical Science and Engineering, Tokyo Institute of Technology Tokyo 152-8552 Japan
| | - Miftakhul Huda
- Laboratory for Chemistry and Life Science, Tokyo Institute of Technology Yokohama 226-8503 Japan
| | - Makoto Tanabe
- Laboratory for Chemistry and Life Science, Tokyo Institute of Technology Yokohama 226-8503 Japan
| | - Wang-Jae Chun
- Graduate School of Arts and Sciences, International Christian University Mitaka Tokyo 181-8585 Japan
| | - Kimihisa Yamamoto
- Laboratory for Chemistry and Life Science, Tokyo Institute of Technology Yokohama 226-8503 Japan
- Department of Chemical Science and Engineering, Tokyo Institute of Technology Tokyo 152-8552 Japan
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3
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Wang J, Zang W, Liu X, Sun J, Xi S, Liu W, Kou Z, Shen L, Wang J. Switch Volmer-Heyrovsky to Volmer-Tafel Pathway for Efficient Acidic Electrocatalytic Hydrogen Evolution by Correlating Pt Single Atoms with Clusters. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2309427. [PMID: 38240468 DOI: 10.1002/smll.202309427] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 12/31/2023] [Indexed: 06/20/2024]
Abstract
As cost-effective catalysts, platinum (Pt) single-atom catalysts (SACs) have attracted substantial attention. However, most studies indicate that Pt SACs in acidic hydrogen evolution reaction (HER) follow the slow Volmer-Heyrovsky (VH) mechanism instead of the fast kinetic Volmer-Tafel (VT) pathway. Here, this work propose that the VH mechanism in Pt SACs can be switched to the faster VT pathway for efficient HER by correlating Pt single atoms (SAs) with Pt clusters (Cs). Our calculations reveal that the correlation between Pt SAs and Cs significantly impacts the electronic structure of exposed Pt atoms, lowering the adsorption barrier for atomic hydrogen and enabling a faster VT mechanism. To validate these findings, this work purposely synthesize three catalysts: l-Pt@MoS2, m-Pt@MoS2 and h-Pt@MoS2 with low, moderate, and high Pt-loading, having different distributions of Pt SAs and Cs. The m-Pt@MoS2 catalyst with properly correlating Pt SAs and Cs exhibits outstanding performance with an overpotential of 47 mV and Tafel slope of 32 mV dec-1. Further analysis of the Tafel values confirms that the m-Pt@MoS2 sample indeed follows the VT reaction mechanism, aligning with the theoretical findings. This study offers a deep understanding of the synergistic mechanism, paving a way for designing novel-advanced catalysts.
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Affiliation(s)
- Junhui Wang
- Department of Materials Science and Engineering, National University of Singapore, Singapore, 117574, Singapore
| | - Wenjie Zang
- Department of Materials Science and Engineering, University of California-Irvine, Irvine, CA, 92617, USA
| | - Ximeng Liu
- Department of Materials Science and Engineering, National University of Singapore, Singapore, 117574, Singapore
| | - Jianguo Sun
- Department of Materials Science and Engineering, National University of Singapore, Singapore, 117574, Singapore
| | - Shibo Xi
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE2), Agency for Science, Technology and Research (A*STAR), 1 Pesek Road Jurong Island, Singapore, 627833, Singapore
| | - Weihao Liu
- Department of Materials Science and Engineering, National University of Singapore, Singapore, 117574, Singapore
| | - Zongkui Kou
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430074, P. R. China
| | - Lei Shen
- Department of Mechanical Engineering, National University of Singapore, Singapore, 117575, Singapore
| | - John Wang
- Department of Materials Science and Engineering, National University of Singapore, Singapore, 117574, Singapore
- National University of Singapore (Chongqing) Research Institute, Chongqing, 401123, P. R. China
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4
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Tokoro M, Imamura Y, Kumagai K, Hokura A. Uptake and accumulation mechanisms of hexachloroplatinate(IV) ions in the unicellular alga, Pseudococcomyxa simplex. Metallomics 2024; 16:mfae009. [PMID: 38299782 PMCID: PMC10858386 DOI: 10.1093/mtomcs/mfae009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2023] [Accepted: 01/30/2024] [Indexed: 02/02/2024]
Abstract
Platinum uptake was examined by adding hexachloroplatinate(IV) solution to the unicellular alga Pseudococcomyxa simplex. After the addition of platinum solution ([Pt] = 100 mg/kg, pH 3.2-3.2) for a certain time, the cells were quickly frozen and subjected to μ-XRF (X-ray fluorescence) analysis using synchrotron X-rays. The beam size of approximately 1 micrometer allowed visualization of the platinum distribution within a single cell. On the other hand, we examined platinum uptake in enzyme-treated protoplasts and lyophilized cells and found that the platinum uptake concentrations in these samples were higher than in living in-vivo cells. Cell wall and cell metabolism were presumed to interfere with the uptake of hexachloroplatinate(IV) ions. All platinum ions taken up by the cells were reduced to divalent form. The effect of light on platinum addition was also investigated. When platinum was added under light conditions, some samples showed higher platinum accumulation than under shade conditions.
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Affiliation(s)
- Masato Tokoro
- Graduate School of Engineering, Tokyo Denki University, 5 Senju-Asahicho, Adachi, Tokyo 120-8551, Japan
| | - Yu Imamura
- Graduate School of Engineering, Tokyo Denki University, 5 Senju-Asahicho, Adachi, Tokyo 120-8551, Japan
| | - Kazuhiro Kumagai
- Nanodimensional Standards Group, Research Institute for Material and Chemical Measurement National Metrology Institute of Japan (NMIJ), National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5, 1-1-1 Higashi Tsukuba, Ibaraki 305-8565
| | - Akiko Hokura
- Department of Applied Chemistry, School of Engineering, Tokyo Denki University, 5 Senju-Asahicho, Adachi, Tokyo 120-8551, Japan
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5
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Guevara-Vela JM, Rocha-Rinza T, Rodríguez-Kessler PL, Muñoz-Castro A. On the structure and electronic properties of Pt n clusters: new most stable structures for n = 16-17. Phys Chem Chem Phys 2023; 25:28835-28840. [PMID: 37853760 DOI: 10.1039/d3cp04455f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2023]
Abstract
The lowest energy structures and electronic properties of Ptn clusters up to n = 17 are investigated by using a genetic algorithm in combination with density functional theory calculations. There are several putative global minimum structures for platinum clusters which have been reported by using different approaches, but a comprehensive study for n = 15-17 has not been carried out so far. Herein, we perform a consensus using GGA (PBE), meta-GGA (TPSS) and hybrid (B3PW91, PBE0, PBEh-3c, M06-L) functionals in conjunction with the Def2-TZVP basis set. New most stable structures are found for Pt16 and Pt17, which are slightly lower in energy than the previously reported global minima. Molecular dynamics simulations show that the clusters are rigid at room temperature. We analyze the structural, electronic, energy and vibrational data of the investigated clusters in detail.
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Affiliation(s)
| | - Tomás Rocha-Rinza
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, Delegación Coyoacán, México City C.P. 04510, Mexico
| | - Peter L Rodríguez-Kessler
- Centro de Investigaciones en Óptica A.C., Loma del Bosque 115, Col. Lomas del Campestre, León, Guanajuato, Mexico.
| | - Alvaro Muñoz-Castro
- Facultad de Ingeniería, Arquitectura y Diseño, Universidad San Sebastián, Bellavista 7, Santiago, 8420524, Chile.
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6
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Hashimoto N, Mori K, Matsuzaki S, Iwama K, Kitaura R, Kamiuchi N, Yoshida H, Yamashita H. Sub-nanometric High-Entropy Alloy Cluster: Hydrogen Spillover Driven Synthesis on CeO 2 and Structural Reversibility. JACS AU 2023; 3:2131-2143. [PMID: 37654591 PMCID: PMC10466320 DOI: 10.1021/jacsau.3c00210] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Revised: 07/05/2023] [Accepted: 07/06/2023] [Indexed: 09/02/2023]
Abstract
High-entropy alloy (HEA) nanoparticles (NPs) have attracted significant attention as promising catalysts owing to the various unique synergistic effects originating from the nanometer-scale, near-equimolar mixing of five or more components to produce single-phase solid solutions. However, the study of sub-nanometer HEA clusters having sizes of less than 1 nm remains incomplete despite the possibility of novel functions related to borderline molecular states with discrete quantum energy levels. The present work demonstrates the synthesis of CeO2 nanorods (CeO2-NRs) on which sub-nanometer CoNiCuZnPd HEA clusters were formed with the aid of a pronounced hydrogen spillover effect on readily reducible CeO2 (110) facets. The CoNiCuZnPd HEA sub-nanoclusters exhibited higher activity during the reduction of NO by H2 even at low temperatures compared with the corresponding monometallic catalysts. These clusters also showed a unique structural reversibility in response to repeated exposure to oxidative/reductive conditions, based on the sacrificial oxidation of the non-noble metals. Both experimental and theoretical analyses established that multielement mixing in quantum-sized regions endowed the HEA clusters with entirely novel catalytic properties.
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Affiliation(s)
- Naoki Hashimoto
- Division
of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Kohsuke Mori
- Division
of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan
- Innovative
Catalysis Science Division, Institute for Open and Transdisciplinary
Research Initiatives (ICS-OTRI), Osaka University, Suita, Osaka 565-0871, Japan
| | - Shuichiro Matsuzaki
- Division
of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Kazuki Iwama
- Division
of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Ryota Kitaura
- Division
of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Naoto Kamiuchi
- The
Institute of Scientific and Industrial Research, Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
| | - Hideto Yoshida
- The
Institute of Scientific and Industrial Research, Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
| | - Hiromi Yamashita
- Division
of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan
- Innovative
Catalysis Science Division, Institute for Open and Transdisciplinary
Research Initiatives (ICS-OTRI), Osaka University, Suita, Osaka 565-0871, Japan
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7
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Haraguchi N, Ogiwara N, Kumabe Y, Kikkawa S, Yamazoe S, Tachikawa T, Uchida S. Size-Controlled Synthesis of Luminescent Few-Atom Silver Clusters via Electron Transfer in Isostructural Redox-Active Porous Ionic Crystals. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2300743. [PMID: 36828792 DOI: 10.1002/smll.202300743] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Indexed: 06/08/2023]
Abstract
Ag clusters with a controlled number of atoms have received significant interest because they show size-dependent catalytic, optical, electronic, or magnetic properties. However, the synthesis of size-controlled, ligand-free, and air-stable Ag clusters with high yields has not been well-established. Herein, it is shown that isostructural porous ionic crystals (PICs) with redox-active polyoxometalates (POMs) can be used to synthesize Ag clusters via electron transfer from POMs to Ag+ . Ag clusters with average numbers of three, four, or six atoms emitting blue, green, or red colors, respectively, are formed and stabilized in the PICs under ambient conditions without any protecting ligands. The cluster size solely correlates with the degree of electron transfer, which is controlled by the reduction time and types of ions or elements of the PICs. Thus, advantages have been taken of POMs as electron sources and PICs as scaffolds to demonstrate a convenient method to obtain few-atom Ag clusters.
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Affiliation(s)
- Naoya Haraguchi
- Department of Basic Science, School of Arts and Sciences, The University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo, 153-8902, Japan
| | - Naoki Ogiwara
- Department of Basic Science, School of Arts and Sciences, The University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo, 153-8902, Japan
| | - Yoshitaka Kumabe
- Molecular Photoscience Research Center, Kobe University, Rokkodaicho, Nada-ku, Kobe, 657-8501, Japan
| | - Soichi Kikkawa
- Department of Chemistry, Graduate School of Science, Tokyo Metropolitan University, Minami-Osawa, Hachioji, Tokyo, 192-0397, Japan
| | - Seiji Yamazoe
- Department of Chemistry, Graduate School of Science, Tokyo Metropolitan University, Minami-Osawa, Hachioji, Tokyo, 192-0397, Japan
| | - Takashi Tachikawa
- Molecular Photoscience Research Center, Kobe University, Rokkodaicho, Nada-ku, Kobe, 657-8501, Japan
| | - Sayaka Uchida
- Department of Basic Science, School of Arts and Sciences, The University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo, 153-8902, Japan
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8
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Li Y, Zhao S, Zang S. Programmable kernel structures of atomically precise metal nanoclusters for tailoring catalytic properties. EXPLORATION (BEIJING, CHINA) 2023; 3:20220005. [PMID: 37933377 PMCID: PMC10624382 DOI: 10.1002/exp.20220005] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Accepted: 12/01/2022] [Indexed: 11/08/2023]
Abstract
The unclear structures and polydispersity of metal nanoparticles (NPs) seriously hamper the identification of the active sites and the construction of structure-reactivity relationships. Fortunately, ligand-protected metal nanoclusters (NCs) with atomically precise structures and monodispersity have become an ideal candidate for understanding the well-defined correlations between structure and catalytic property at an atomic level. The programmable kernel structures of atomically precise metal NCs provide a fantastic chance to modulate their size, shape, atomic arrangement, and electron state by the precise modulating of the number, type, and location of metal atoms. Thus, the special focus of this review highlights the most recent process in tailoring the catalytic activity and selectivity over metal NCs by precisely controlling their kernel structures. This review is expected to shed light on the in-depth understanding of metal NCs' kernel structures and reactivity relationships.
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Affiliation(s)
- Ya‐Hui Li
- Henan Key Laboratory of Crystalline Molecular Functional Material, Henan International Joint Laboratory of Tumor Theranostical Cluster Materials, Green Catalysis Center and College of ChemistryZhengzhou UniversityZhengzhouP. R. China
| | - Shu‐Na Zhao
- Henan Key Laboratory of Crystalline Molecular Functional Material, Henan International Joint Laboratory of Tumor Theranostical Cluster Materials, Green Catalysis Center and College of ChemistryZhengzhou UniversityZhengzhouP. R. China
| | - Shuang‐Quan Zang
- Henan Key Laboratory of Crystalline Molecular Functional Material, Henan International Joint Laboratory of Tumor Theranostical Cluster Materials, Green Catalysis Center and College of ChemistryZhengzhou UniversityZhengzhouP. R. China
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9
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Kawawaki T, Mitomi Y, Nishi N, Kurosaki R, Oiwa K, Tanaka T, Hirase H, Miyajima S, Niihori Y, Osborn DJ, Koitaya T, Metha GF, Yokoyama T, Iida K, Negishi Y. Pt 17 nanocluster electrocatalysts: preparation and origin of high oxygen reduction reaction activity. NANOSCALE 2023; 15:7272-7279. [PMID: 36987742 DOI: 10.1039/d3nr01152f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
We recently found that [Pt17(CO)12(PPh3)8]z (Pt = platinum; CO = carbon monoxide; PPh3 = triphenylphosphine; z = 1+ or 2+) is a Pt nanocluster (Pt NC) that can be synthesized with atomic precision in air. The present study demonstrates that it is possible to prepare a Pt17-supported carbon black (CB) catalyst (Pt17/CB) with 2.1 times higher oxygen reduction reaction (ORR) activity than commercial Pt nanoparticles/CB by the adsorption of [Pt17(CO)12(PPh3)8]z onto CB and subsequent calcination of the catalyst. Density functional theory calculation strongly suggests that the high ORR activity of Pt17/CB originates from the surface Pt atoms that have an electronic structure appropriate for the progress of ORR. These results are expected to provide design guidelines for the fabrication of highly active ORR catalysts using Pt NCs with a diameter of about 1 nm and thereby enabling the use of reduced amounts of Pt in polymer electrolyte fuel cells.
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Affiliation(s)
- Tokuhisa Kawawaki
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan.
- Research Institute for Science & Technology, Tokyo University of Science, Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
- Physical and Chemical Research Infrastructure Group, RIKEN SPring-8 Center, RIKEN, Sayo, Hyogo 679-5198, Japan
| | - Yusuke Mitomi
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan.
| | - Naoki Nishi
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan.
| | - Ryuki Kurosaki
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan.
| | - Kazutaka Oiwa
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan.
| | - Tomoya Tanaka
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan.
| | - Hinoki Hirase
- Institute for Catalysis, Hokkaido University, Sapporo, Hokkaido 001-0021, Japan
| | - Sayuri Miyajima
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan.
| | - Yoshiki Niihori
- Research Institute for Science & Technology, Tokyo University of Science, Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - D J Osborn
- Department of Chemistry, University of Adelaide, Adelaide, South Australia, 5005, Australia
| | - Takanori Koitaya
- Physical and Chemical Research Infrastructure Group, RIKEN SPring-8 Center, RIKEN, Sayo, Hyogo 679-5198, Japan
- Institute for Molecular Science, Okazaki, Aichi 444-8585, Japan
| | - Gregory F Metha
- Department of Chemistry, University of Adelaide, Adelaide, South Australia, 5005, Australia
| | - Toshihiko Yokoyama
- Physical and Chemical Research Infrastructure Group, RIKEN SPring-8 Center, RIKEN, Sayo, Hyogo 679-5198, Japan
- Institute for Molecular Science, Okazaki, Aichi 444-8585, Japan
| | - Kenji Iida
- Institute for Catalysis, Hokkaido University, Sapporo, Hokkaido 001-0021, Japan
| | - Yuichi Negishi
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan.
- Research Institute for Science & Technology, Tokyo University of Science, Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
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10
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Gedam SP, Chiriki S, Padmavathi D. Advanced machine learning based global optimizations for Pt nanoclusters. J INDIAN CHEM SOC 2023. [DOI: 10.1016/j.jics.2023.100978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/31/2023]
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11
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Rodríguez-Kessler PL, Muñoz-Castro A, Rodríguez-Domínguez AR, Cabellos JL. Structure effects of Pt 15 clusters for the oxygen reduction reaction: first-principles calculations. Phys Chem Chem Phys 2023; 25:4764-4772. [PMID: 36692089 DOI: 10.1039/d2cp05188e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
In the present work, the lowest energy structures and electronic properties of Pt15 clusters are investigated using molecular dynamics simulations. The results showed that the most stable configuration is a capped pyramidal structure, which is 0.8 kal mol-1 lower in energy than a layered structure previously reported [V. Kumar and Y. Kawazoe, Evolution of Atomic and Electronic Structure of Pt Clusters: Planar, Layered, Pyramidal, Cage, Cubic, and Octahedral Growth, Phys. Rev. B: Condens. Matter Mater. Phys., 2008, 77, 205418.]. The result is further confirmed by using both the PW91/cc-pVDZ-PP and PBE/PW approaches including the other representative isomers for Pt15. Due to the interesting structure arrangements found, we have investigated the catalytic activities for the oxygen reduction reaction. We found that the most stable Pt15 clusters are plausible catalyts for the ORR according to their interaction with oxygen species, which is consistent with experiments of Pt clusters with atomicity below 20. The results of the structure, electronic, adsorption and vibrational properties of the clusters are provided.
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Affiliation(s)
- Peter L Rodríguez-Kessler
- Centro de Investigaciones en Óptica A.C. (CIO), Loma del Bosque 115, Col. Lomas del Campestre, León, Guanajuato, 37150, Mexico.
| | - Alvaro Muñoz-Castro
- Facultad de Ingeniería, Arquitectura y Diseño, Universidad San Sebastián, Bellavista 7, Santiago, 8420524, Chile.
| | - Adán R Rodríguez-Domínguez
- Universidad Politécnica de Tapachula, Carretera Tapachula a Puerto Madero km 24 + 300, San Benito, Puerto Madero C.P., 30830 Tapachula, Chiapas, Mexico
| | - José Luis Cabellos
- Instituto de Física, Universidad Autónoma de San Luis Potosí, San Luis Potosí 78000, Mexico
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12
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Tong T, Douthwaite M, Chen L, Engel R, Conway MB, Guo W, Wu XP, Gong XQ, Wang Y, Morgan DJ, Davies T, Kiely CJ, Chen L, Liu X, Hutchings GJ. Uncovering Structure-Activity Relationships in Pt/CeO 2 Catalysts for Hydrogen-Borrowing Amination. ACS Catal 2023; 13:1207-1220. [PMID: 36714055 PMCID: PMC9872813 DOI: 10.1021/acscatal.2c04347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Revised: 12/10/2022] [Indexed: 01/06/2023]
Abstract
The hydrogen-borrowing amination of alcohols is a promising route to produce amines. In this study, experimental parameters involved in the preparation of Pt/CeO2 catalysts were varied to assess how physicochemical properties influence their performance in such reactions. An amination reaction between cyclopentanol and cyclopentylamine was used as the model reaction for this study. The Pt precursor used in the catalyst synthesis and the properties of the CeO2 support were both found to strongly influence catalytic performance. Aberration corrected scanning transmission electron microscopy revealed that the most active catalyst comprised linearly structured Pt species. The formation of these features, a function result of epitaxial Pt deposition along the CeO2 [100] plane, appeared to be dependent on the properties of the CeO2 support and the Pt precursor used. Density functional theory calculations subsequently confirmed that these sites were more effective for cyclopentanol dehydrogenation-considered to be the rate-determining step of the process-than Pt clusters and nanoparticles. This study provides insights into the desirable catalytic properties required for hydrogen-borrowing amination but has relevance to other related fields. We consider that this study will provide a foundation for further study in this atom-efficient area of chemistry.
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Affiliation(s)
- Tao Tong
- Cardiff
Catalysis Institute, School of Chemistry,
Cardiff University, Main Building, Park Place, CardiffCF10 3AT, U.K.,Key
Laboratory for Advanced Materials and Joint International Research
Laboratory of Precision Chemistry and Molecular Engineering, Feringa
Nobel Prize Scientist Joint Research Center, Research Institute of
Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai200237, China
| | - Mark Douthwaite
- Cardiff
Catalysis Institute, School of Chemistry,
Cardiff University, Main Building, Park Place, CardiffCF10 3AT, U.K.,
| | - Lu Chen
- Key
Laboratory for Advanced Materials and Joint International Research
Laboratory of Precision Chemistry and Molecular Engineering, Feringa
Nobel Prize Scientist Joint Research Center, Research Institute of
Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai200237, China
| | - Rebecca Engel
- Cardiff
Catalysis Institute, School of Chemistry,
Cardiff University, Main Building, Park Place, CardiffCF10 3AT, U.K.
| | - Matthew B. Conway
- Cardiff
Catalysis Institute, School of Chemistry,
Cardiff University, Main Building, Park Place, CardiffCF10 3AT, U.K.
| | - Wanjun Guo
- Key
Laboratory for Advanced Materials and Joint International Research
Laboratory of Precision Chemistry and Molecular Engineering, Feringa
Nobel Prize Scientist Joint Research Center, Research Institute of
Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai200237, China
| | - Xin-Ping Wu
- Key
Laboratory for Advanced Materials and Joint International Research
Laboratory of Precision Chemistry and Molecular Engineering, Feringa
Nobel Prize Scientist Joint Research Center, Research Institute of
Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai200237, China
| | - Xue-Qing Gong
- Key
Laboratory for Advanced Materials and Joint International Research
Laboratory of Precision Chemistry and Molecular Engineering, Feringa
Nobel Prize Scientist Joint Research Center, Research Institute of
Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai200237, China,
| | - Yanqin Wang
- Key
Laboratory for Advanced Materials and Joint International Research
Laboratory of Precision Chemistry and Molecular Engineering, Feringa
Nobel Prize Scientist Joint Research Center, Research Institute of
Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai200237, China,
| | - David J. Morgan
- Cardiff
Catalysis Institute, School of Chemistry,
Cardiff University, Main Building, Park Place, CardiffCF10 3AT, U.K.
| | - Thomas Davies
- Cardiff
Catalysis Institute, School of Chemistry,
Cardiff University, Main Building, Park Place, CardiffCF10 3AT, U.K.
| | - Christopher J. Kiely
- Department
of Materials Science and Engineering, Lehigh
University, 5 East Packer
Avenue, Bethlehem, Pennsylvania18015, United States
| | - Liwei Chen
- School
of Chemistry and Chemical, In-situ Centre for Physical Sciences, Frontiers
Science Centre for Transformative Molecules, Shanghai Jiao Tong University, 200240Shanghai, P. R. China
| | - Xi Liu
- School
of Chemistry and Chemical, In-situ Centre for Physical Sciences, Frontiers
Science Centre for Transformative Molecules, Shanghai Jiao Tong University, 200240Shanghai, P. R. China,
| | - Graham J. Hutchings
- Cardiff
Catalysis Institute, School of Chemistry,
Cardiff University, Main Building, Park Place, CardiffCF10 3AT, U.K.,
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13
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Yan L, Li P, Zhu Q, Kumar A, Sun K, Tian S, Sun X. Atomically precise electrocatalysts for oxygen reduction reaction. Chem 2023. [DOI: 10.1016/j.chempr.2023.01.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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14
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Atom hybridization of metallic elements: Emergence of subnano metallurgy for the post-nanotechnology. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2022.214826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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15
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Molina L, Arranz-Simón C, Alonso J. Mechanistic insight into the CO oxidation reaction at pure, Nb-doped and Mo-doped medium size Pt clusters. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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16
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Arunachalam B, Manavalan R, Gopalakrishnan N. Effects of multi-atom doping into Pt13 cluster using Ab initio method. Theor Chem Acc 2022. [DOI: 10.1007/s00214-022-02908-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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17
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Chen Z, Zhao J, Jin C, Liu J. Butterfly Effect of Electron Donor from Monoatomic Cobalt in Few-Atom Platinum Clusters: Boosting Electrocatalysis. ACS APPLIED MATERIALS & INTERFACES 2022; 14:37727-37737. [PMID: 35943902 DOI: 10.1021/acsami.2c08959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Few-atom metal clusters feature an extremely large surface area and abundant active sites, which are particularly important for electrocatalysis. Herein, we report a monoatomic cobalt tailoring strategy to boost the performance of platinum clusters (ca. <1 nm) via hetero-charge-trapping chemistry by ultraviolet light reducing Pt-based anions anchored on target Co cations. The created Co1Ptx clusters exhibit a mass activity of 2.27 A mgPt-1, which is about 1621% higher than that obtained by state-of-the-art Pt/C (2 nm) for the oxygen reduction reaction (ORR). This can be attributed to the butterfly effect of electron donor from monoatomic cobalt in the platinum clusters. Moreover, the improved stability results from the Co located at the bottom position of the Pt host, possessing high resistance to Co leaching. Therefore, this offers a general strategy to optimize the high performance of platinum group metal (PGM) clusters for electrocatalysis.
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Affiliation(s)
- Zhiguo Chen
- Beijing Key Laboratory of Electrochemical Process and Technology for Materials, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jing Zhao
- Beijing Key Laboratory of Electrochemical Process and Technology for Materials, Beijing University of Chemical Technology, Beijing 100029, China
| | - Chun Jin
- Beijing Key Laboratory of Electrochemical Process and Technology for Materials, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jingjun Liu
- Beijing Key Laboratory of Electrochemical Process and Technology for Materials, Beijing University of Chemical Technology, Beijing 100029, China
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18
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Cesari C, Berti B, Funaioli T, Femoni C, Iapalucci MC, Pontiroli D, Magnani G, Riccò M, Bortoluzzi M, Vivaldi FM, Zacchini S. Atomically Precise Platinum Carbonyl Nanoclusters: Synthesis, Total Structure, and Electrochemical Investigation of [Pt 27(CO) 31] 4- Displaying a Defective Structure. Inorg Chem 2022; 61:12534-12544. [PMID: 35920640 PMCID: PMC9387524 DOI: 10.1021/acs.inorgchem.2c00965] [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: 03/24/2022] [Indexed: 11/30/2022]
Abstract
The molecular Pt nanocluster [Pt27(CO)31]4- (14-) was obtained by thermal decomposition of [Pt15(CO)30]2- in tetrahydrofuran under a H2 atmosphere. The reaction of 14- with increasing amounts of HBF4·Et2O afforded the previously reported [Pt26(CO)32]2- (32-) and [Pt26(CO)32]- (3-). The new nanocluster 14- was characterized by IR and UV-visible spectroscopy, single-crystal X-ray diffraction, direct-current superconducting quantum interference device magnetometry, cyclic voltammetry, IR spectroelectrochemistry (IR SEC), and electrochemical impedance spectroscopy. The cluster displays a cubic-close-packed Pt27 framework generated by the overlapping of four ABCA layers, composed of 3, 7, 11, and 6 atoms, respectively, that encapsulates a fully interstitial Pt4 tetrahedron. One Pt atom is missing within layer 3, and this defect (vacancy) generates local deformations within layers 2 and 3. These local deformations tend to repair the defect (missing atom) and increase the number of Pt-Pt bonding contacts, minimizing the total energy. The cluster 14- is perfectly diamagnetic and displays a rich electrochemical behavior. Indeed, six different oxidation states have been characterized by IR SEC, unraveling the series of 1n- (n = 3-8) isostructural nanoclusters. Computational studies have been carried out to further support the interpretation of the experimental data.
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Affiliation(s)
- Cristiana Cesari
- Dipartimento
di Chimica Industriale “Toso Montanari”, Università di Bologna, Viale Risorgimento 4, Bologna 40136, Italy
| | - Beatrice Berti
- Dipartimento
di Chimica Industriale “Toso Montanari”, Università di Bologna, Viale Risorgimento 4, Bologna 40136, Italy
| | - Tiziana Funaioli
- Dipartimento
di Chimica e Chimica Industriale, Università
di Pisa, Via G. Moruzzi 13, Pisa 56124, Italy
| | - Cristina Femoni
- Dipartimento
di Chimica Industriale “Toso Montanari”, Università di Bologna, Viale Risorgimento 4, Bologna 40136, Italy
| | - Maria Carmela Iapalucci
- Dipartimento
di Chimica Industriale “Toso Montanari”, Università di Bologna, Viale Risorgimento 4, Bologna 40136, Italy
| | - Daniele Pontiroli
- Dipartimento
di Scienze Matematiche, Fisiche e Informatiche, and INSTM, Università degli Studi di Parma, Viale delle Scienze 7/a, Parma 43124, Italy
| | - Giacomo Magnani
- Dipartimento
di Scienze Matematiche, Fisiche e Informatiche, and INSTM, Università degli Studi di Parma, Viale delle Scienze 7/a, Parma 43124, Italy
| | - Mauro Riccò
- Dipartimento
di Scienze Matematiche, Fisiche e Informatiche, and INSTM, Università degli Studi di Parma, Viale delle Scienze 7/a, Parma 43124, Italy
| | - Marco Bortoluzzi
- Dipartimento
di Scienze Molecolari e Nanosistemi, Ca’Foscari
University of Venice, Via Torino 155, Mestre (Ve) 30175, Italy
| | - Federico Maria Vivaldi
- Dipartimento
di Chimica e Chimica Industriale, Università
di Pisa, Via G. Moruzzi 13, Pisa 56124, Italy
| | - Stefano Zacchini
- Dipartimento
di Chimica Industriale “Toso Montanari”, Università di Bologna, Viale Risorgimento 4, Bologna 40136, Italy
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19
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Kambe T, Yamamoto K. Development of Precisely Controlled Structures Containing Typical Metal Elements for Preparing Superatoms. CHEM LETT 2022. [DOI: 10.1246/cl.220291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Tetsuya Kambe
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsutacho, Midori-ku, Yokohama, Kanagawa 226-8503
- JST-ERATO,Tokyo Institute of Technology, 4259 Nagatsutacho, Midori-ku, Yokohama, Kanagawa 226-8503
| | - Kimihisa Yamamoto
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsutacho, Midori-ku, Yokohama, Kanagawa 226-8503
- JST-ERATO,Tokyo Institute of Technology, 4259 Nagatsutacho, Midori-ku, Yokohama, Kanagawa 226-8503
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20
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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.
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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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21
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Bumüller D, Yohannes AG, Kohaut S, Kondov I, Kappes MM, Fink K, Schooss D. Structures of Small Platinum Cluster Anions Pt n-: Experiment and Theory. J Phys Chem A 2022; 126:3502-3510. [PMID: 35617126 DOI: 10.1021/acs.jpca.2c02142] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The structures of platinum cluster anions Pt6--Pt13- have been investigated by trapped ion electron diffraction. Structures were assigned by comparing experimental and simulated scattering functions using candidate structures obtained by density functional theory computations, including spin-orbit coupling. We find a structural evolution from planar structures (Pt6-, Pt7-) and amorphous-like structures (Pt7--Pt9-) to structures based on distorted tetrahedra (Pt9--Pt11-). Finally, Pt12- and Pt13- are based on hcp fragments. While the structural parameters are well described by density functional theory computations for all clusters studied, the predicted lowest energy structure is found in the experiment only for Pt6-. For larger clusters, higher energy isomers are necessary to obtain a fit to the scattering data.
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Affiliation(s)
- Dennis Bumüller
- Institute of Nanotechnology, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Asfaw G Yohannes
- Institute of Nanotechnology, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany.,Steinbuch Centre for Computing, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Stephan Kohaut
- Institute of Nanotechnology, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Ivan Kondov
- Steinbuch Centre for Computing, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Manfred M Kappes
- Institute of Nanotechnology, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany.,Institute of Physical Chemistry, Karlsruhe Institute of Technology, Fritz-Haber-Weg 2, 76131 Karlsruhe, Germany
| | - Karin Fink
- Institute of Nanotechnology, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Detlef Schooss
- Institute of Nanotechnology, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
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22
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Albrecht K, Taguchi M, Tsukamoto T, Moriai T, Yoshida N, Yamamoto K. Poly-phenylene jacketed tailor-made dendritic phenylazomethine ligand for nanoparticle synthesis. Chem Sci 2022; 13:5813-5817. [PMID: 35685784 PMCID: PMC9132029 DOI: 10.1039/d1sc05661a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 03/05/2022] [Indexed: 11/21/2022] Open
Abstract
Synthesizing metal clusters with a specific number of atoms on a preparative scale for studying advanced properties is still a challenge. The dendrimer templated method is powerful for synthesizing size or atomicity controlled nanoparticles. However, not all atomicity is accessible with conventional dendrimers. A new tailor-made phenylazomethine dendrimer (DPA) with a limited number of coordination sites (n = 16) and a non-coordinating large poly-phenylene shell was designed to tackle this problem. The asymmetric dendron and adamantane core four substituted dendrimer (PPDPA16) were successfully synthesized. The coordination behavior confirmed the accumulation of 16 metal Lewis acids (RhCl3, RuCl3, and SnBr2) to PPDPA16. After the reduction of the complex, low valent metal nanoparticles with controlled size were obtained. The tailor-made dendrimer is a promising approach to synthesize a variety of metal clusters with desired atomicity.
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Affiliation(s)
- Ken Albrecht
- Laboratory for Chemistry and Life Science (CLS), Institute of Innovative Research (IIR), Tokyo Institute of Technology Yokohama 226-8503 Japan .,JST-ERATO, Yamamoto Atom Hybrid Project, Institute of Innovative Research (IIR), Tokyo Institute of Technology 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan.,Institute for Materials Chemistry, Engineering Kyushu University 6-1 Kasuga-Koen Kasuga-shi 816-8580 Fukuoka Japan
| | - Maki Taguchi
- JST-ERATO, Yamamoto Atom Hybrid Project, Institute of Innovative Research (IIR), Tokyo Institute of Technology 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
| | - Takamasa Tsukamoto
- Laboratory for Chemistry and Life Science (CLS), Institute of Innovative Research (IIR), Tokyo Institute of Technology Yokohama 226-8503 Japan .,JST-ERATO, Yamamoto Atom Hybrid Project, Institute of Innovative Research (IIR), Tokyo Institute of Technology 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
| | - Tatsuya Moriai
- Laboratory for Chemistry and Life Science (CLS), Institute of Innovative Research (IIR), Tokyo Institute of Technology Yokohama 226-8503 Japan
| | - Nozomi Yoshida
- Laboratory for Chemistry and Life Science (CLS), Institute of Innovative Research (IIR), Tokyo Institute of Technology Yokohama 226-8503 Japan
| | - Kimihisa Yamamoto
- Laboratory for Chemistry and Life Science (CLS), Institute of Innovative Research (IIR), Tokyo Institute of Technology Yokohama 226-8503 Japan .,JST-ERATO, Yamamoto Atom Hybrid Project, Institute of Innovative Research (IIR), Tokyo Institute of Technology 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
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23
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Wang X, Zhao L, Li X, Liu Y, Wang Y, Yao Q, Xie J, Xue Q, Yan Z, Yuan X, Xing W. Atomic-precision Pt 6 nanoclusters for enhanced hydrogen electro-oxidation. Nat Commun 2022; 13:1596. [PMID: 35332161 PMCID: PMC8948276 DOI: 10.1038/s41467-022-29276-7] [Citation(s) in RCA: 45] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Accepted: 03/03/2022] [Indexed: 11/10/2022] Open
Abstract
The discord between the insufficient abundance and the excellent electrocatalytic activity of Pt urgently requires its atomic-level engineering for minimal Pt dosage yet maximized electrocatalytic performance. Here we report the design of ultrasmall triphenylphosphine-stabilized Pt6 nanoclusters for electrocatalytic hydrogen oxidation reaction in alkaline solution. Benefiting from the self-optimized ligand effect and atomic-precision structure, the nanocluster electrocatalyst demonstrates a high mass activity, a high stability, and outperforms both Pt single atoms and Pt nanoparticle analogues, uncovering an unexpected size optimization principle for designing Pt electrocatalysts. Moreover, the nanocluster electrocatalyst delivers a high CO-tolerant ability that conventional Pt/C catalyst lacks. Theoretical calculations confirm that the enhanced electrocatalytic performance is attributable to the bifold effects of the triphenylphosphine ligand, which can not only tune the formation of atomically precise platinum nanoclusters, but also shift the d-band center of Pt atoms for favorable adsorption kinetics of *H, *OH, and CO. While Pt is an active fuel cell catalyst, it’s low abundance and high cost spurs research into boosting performances from lesser Pt amounts. Here, authors design atomically precise triphenylphosphine-stabilized Pt nanoclusters with high activities and durabilities for electrocatalytic H2 oxidation.
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Affiliation(s)
- Xiaoning Wang
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao, 266580, P. R. China
| | - Lianming Zhao
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao, 266580, P. R. China
| | - Xuejin Li
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao, 266580, P. R. China
| | - Yong Liu
- School of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042, P. R. China
| | - Yesheng Wang
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao, 266580, P. R. China
| | - Qiaofeng Yao
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore.,Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou, 350207, P. R. China
| | - Jianping Xie
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore.,Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou, 350207, P. R. China
| | - Qingzhong Xue
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao, 266580, P. R. China
| | - Zifeng Yan
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao, 266580, P. R. China
| | - Xun Yuan
- School of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042, P. R. China.
| | - Wei Xing
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao, 266580, P. R. China.
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24
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Wakizaka M, Chun WJ, Imaoka T, Yamamoto K. Synthesis and magnetic properties of sub-nanosized iron carbides on a carbon support. RSC Adv 2022; 12:3238-3242. [PMID: 35425399 PMCID: PMC8979317 DOI: 10.1039/d1ra09191c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 01/18/2022] [Indexed: 11/30/2022] Open
Abstract
Iron carbide clusters with near-sub-nanometer size have been synthesized by employing a tetraphenylmethane-cored phenylazomethine dendrimer generation 4 (TPM-DPAG4) as a molecular template. Magnetic measurements reveal that these iron carbide clusters exhibit a magnetization–field hysteresis loop at 300 K. The data indicate that these iron carbide clusters are ferromagnets at room temperature. This study reports the synthesis and ferromagnetism of iron carbide clusters with near-subnanometer size by employing a dendrimer template and carbothermal hydrogen reduction (CHR).![]()
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Affiliation(s)
- Masanori Wakizaka
- Laboratory for Chemistry and Life Science Institute of Innovative Research, Tokyo Institute of Technology Yokohama 226-8503 Japan
| | - Wang-Jae Chun
- Graduate School of Arts and Sciences, International Christian University Tokyo 181-8585 Japan
| | - Takane Imaoka
- Laboratory for Chemistry and Life Science Institute of Innovative Research, Tokyo Institute of Technology Yokohama 226-8503 Japan
| | - Kimihisa Yamamoto
- Laboratory for Chemistry and Life Science Institute of Innovative Research, Tokyo Institute of Technology Yokohama 226-8503 Japan
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25
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Negishi Y. Metal-nanocluster Science and Technology: My Personal History and Outlook. Phys Chem Chem Phys 2022; 24:7569-7594. [DOI: 10.1039/d1cp05689a] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Metal nanoclusters (NCs) are among the leading targets in research of nanoscale materials, and elucidation of their properties (science) and development of control techniques (technology) have been continuously studied for...
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26
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Tsukamoto T, Imaoka T, Yamamoto K. Unique Functions and Applications of Rigid Dendrimers Featuring Radial Aromatic Chains. Acc Chem Res 2021; 54:4486-4497. [PMID: 34859668 DOI: 10.1021/acs.accounts.1c00530] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Dendrimers, which are highly branched polymers and regarded as huge single molecules, are interesting substances from the aspect of not only polymer chemistry but also molecular chemistry. Various applications in materials science and life science have been investigated by taking advantage of the radially layered structures and intramolecular nanospaces of dendrimers. Most dendrimers have flexible structures that originate from their organic chains which contain many sp3-type atoms, while relatively rigid dendrimers composed only of sp2-type atoms have rarely been reported. It has been recently clarified that such rigid dendrimers exhibit a specific aromatic property not found in other materials. Dendritic phenylazomethines (DPAs), as one of the rigid dendrimers, have only sp2-type C and N atoms and possess a radially branched π-conjugation system in their own macromolecular chains. Such geometric and electronic structures heighten the electron density at the core of the dendrimer and induce an intramolecular potential gradient, which affords unique reactivities that lead to extraordinary functions. This unique property of the rigid dendrimers can be regarded as a new atypical electronic state based on radial aromatic chains not found in conventional aromatic compounds containing spherical aromaticity, Möbius aromaticity, metal aromaticity, and conductive polymers. Therefore, this as-yet-unknown characteristic is expected to contribute to the further development of fundamental and materials chemistry.In this Account, we highlight the rigid DPA dendrimers and their peculiar atomically precise and selective assembly behaviors that originate from the radial aromatic chains. One of the most noteworthy attainments based on the radial aromatic chains is the precise synthesis of a multimetallic multinuclear complex of a dendrimer containing a total of 13 elements. Next, we describe the electrochemical and catalytic functionalization of such multinuclear dendrimer complexes and the construction of supramolecular nanoarchitectures by the polymerization of DPAs. These complexes exhibit encapsulation-release switching of guests and additive-free catalytic ability similar to proteins and enzymes. Such selective and accurate control of the intramolecular assembly of guests and the intermolecular arrangement of hosts realized by the radial aromatic chains of dendrimers will enable supramolecular chemistry and biochemistry to be linked from a new aspect. In addition, the multimetallic multinuclear complexes of dendrimers afford a novel approach to precisely synthesize sub-nanoparticles with ultrasmall particle sizes (1 nm) that have been technically difficult to obtain by conventional nanotechnology. We discuss the method for the synthesis of these sub-nanoparticles with well-controlled atomicity and composition using DPA complexes as a template and recent advances to reveal their specific physical and chemical properties. These results suggest that the unique electronic states induced in such radial aromatics could play an important role in the development of next-generation chemistry.
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Affiliation(s)
- Takamasa Tsukamoto
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, Yokohama 226-8503 Japan
- PRESTO, JST, Kawaguchi, Saitama 332-0012 Japan
- ERATO, JST, Kawaguchi, Saitama 332-0012 Japan
| | - Takane Imaoka
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, Yokohama 226-8503 Japan
- ERATO, JST, Kawaguchi, Saitama 332-0012 Japan
| | - Kimihisa Yamamoto
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, Yokohama 226-8503 Japan
- ERATO, JST, Kawaguchi, Saitama 332-0012 Japan
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Kawawaki T, Shimizu N, Mitomi Y, Yazaki D, Hossain S, Negishi Y. Supported, ∼1-nm-Sized Platinum Clusters: Controlled Preparation and Enhanced Catalytic Activity. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2021. [DOI: 10.1246/bcsj.20210311] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Tokuhisa Kawawaki
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, Kagurazaka, Shinjuku–ku, Tokyo 162–8601, Japan
- Research Institute for Science & Technology, Tokyo University of Science, Kagurazaka, Shinjuku–ku, Tokyo 162–8601, Japan
| | - Nobuyuki Shimizu
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, Kagurazaka, Shinjuku–ku, Tokyo 162–8601, Japan
| | - Yusuke Mitomi
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, Kagurazaka, Shinjuku–ku, Tokyo 162–8601, Japan
| | - Daichi Yazaki
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, Kagurazaka, Shinjuku–ku, Tokyo 162–8601, Japan
| | - Sakiat Hossain
- Research Institute for Science & Technology, Tokyo University of Science, Kagurazaka, Shinjuku–ku, Tokyo 162–8601, Japan
| | - Yuichi Negishi
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, Kagurazaka, Shinjuku–ku, Tokyo 162–8601, Japan
- Research Institute for Science & Technology, Tokyo University of Science, Kagurazaka, Shinjuku–ku, Tokyo 162–8601, Japan
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28
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29
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Kawawaki T, Shimizu N, Funai K, Mitomi Y, Hossain S, Kikkawa S, Osborn DJ, Yamazoe S, Metha GF, Negishi Y. Simple and high-yield preparation of carbon-black-supported ∼1 nm platinum nanoclusters and their oxygen reduction reactivity. NANOSCALE 2021; 13:14679-14687. [PMID: 34558590 DOI: 10.1039/d1nr04202e] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The improvement of oxygen reduction reaction (ORR) catalysts is essential before polymer electrolyte fuel cells can be used widely. To this end, we established a simple method for the size-selective synthesis of a series of ligand-protected platinum nanoclusters with ∼1 nm particle size (Ptn NCs; n = ∼35, ∼51, and ∼66) and narrow size distribution (±∼4 Pt atoms) under atmospheric conditions. Using this method, each ligand-protected ∼1 nm Pt NC was obtained in a relatively high yield (nearly 80% for Pt∼66). We succeeded in adsorbing each ligand-protected ∼1 nm Pt NC on carbon black (CB) and then removing most of the ligands from the surface of the Pt NCs via calcination while maintaining the original size. The obtained Pt∼35/CB, Pt∼51/CB, and Pt∼66/CB exhibited ORR mass activities that were 1.6, 2.1, and 1.6 times higher, respectively, than that of commercial CB supported-Pt nanoparticles, and also display high durability.
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Affiliation(s)
- Tokuhisa Kawawaki
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan.
| | - Nobuyuki Shimizu
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan.
| | - Kanako Funai
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan.
| | - Yusuke Mitomi
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan.
| | - Sakiat Hossain
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan.
| | - Soichi Kikkawa
- Department of Chemistry, Graduate School of Science, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji-shi, Tokyo 192-0397, Japan
| | - D J Osborn
- Department of Chemistry, University of Adelaide, Adelaide, South Australia 5005, Australia
| | - Seiji Yamazoe
- Department of Chemistry, Graduate School of Science, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji-shi, Tokyo 192-0397, Japan
| | - Gregory F Metha
- Department of Chemistry, University of Adelaide, Adelaide, South Australia 5005, Australia
| | - Yuichi Negishi
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan.
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Kambe T, Li M, Tsukamoto T, Imaoka T, Yamamoto K. Expansion of Dendrimer Template Function for Subnanoparticle Synthesis. CHEM LETT 2021. [DOI: 10.1246/cl.210316] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Tetsuya Kambe
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsutacho, Midori-ku, Yokohama, Kanagawa 226-8503, Japan
- JST-ERATO, Tokyo Institute of Technology, 4259 Nagatsutacho, Midori-ku, Yokohama, Kanagawa 226-8503, Japan
| | - Meijia Li
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsutacho, Midori-ku, Yokohama, Kanagawa 226-8503, Japan
| | - Takamasa Tsukamoto
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsutacho, Midori-ku, Yokohama, Kanagawa 226-8503, Japan
- JST-ERATO, Tokyo Institute of Technology, 4259 Nagatsutacho, Midori-ku, Yokohama, Kanagawa 226-8503, Japan
- JST-PRESTO, Kawaguchi, Saitama 332-0012, Japan
| | - Takane Imaoka
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsutacho, Midori-ku, Yokohama, Kanagawa 226-8503, Japan
- JST-ERATO, Tokyo Institute of Technology, 4259 Nagatsutacho, Midori-ku, Yokohama, Kanagawa 226-8503, Japan
| | - Kimihisa Yamamoto
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsutacho, Midori-ku, Yokohama, Kanagawa 226-8503, Japan
- JST-ERATO, Tokyo Institute of Technology, 4259 Nagatsutacho, Midori-ku, Yokohama, Kanagawa 226-8503, Japan
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31
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Nair AS, Anoop A, Ahuja R, Pathak B. Role of atomicity in the oxygen reduction reaction activity of platinum sub nanometer clusters: A global optimization study. J Comput Chem 2021; 42:1944-1958. [PMID: 34309891 DOI: 10.1002/jcc.26725] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Revised: 06/22/2021] [Accepted: 07/15/2021] [Indexed: 12/25/2022]
Abstract
Metal nanoclusters are an important class of materials for catalytic applications. Sub nanometer clusters are relatively less explored for their catalytic activity on account of undercoordinated surface structure. Taking this into account, we studied platinum-based sub nanometer clusters for their catalytic activity for oxygen reduction reaction (ORR). A comprehensive analysis with global optimization is carried out for structural prediction of the platinum clusters. The energetic and electronic properties of interactions of clusters with reaction intermediates are investigated. The role of structural sensitivity in the dynamics of clusters is unraveled, and unique intermediate specific interactions are identified. ORR energetics is examined, and exceptional activity for sub nanometer clusters are observed. An inverse size versus activity relationship is identified, challenging the conventional trends followed by larger nanoclusters. The principal role of atomicity in governing the catalytic activity of nanoclusters is illustrated. The structural norms governing the sub nanometer cluster activity are shown to be markedly different from larger nanoclusters.
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Affiliation(s)
- Akhil S Nair
- Department of Chemistry, Indian Institute of Technology Indore, Indore, Madhya Pradesh, India
| | - Anakuthil Anoop
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, India
| | - Rajeev Ahuja
- Condensed Matter Theory Group, Department of Physics and Astronomy, Uppsala University, Uppsala, Sweden.,Department of Physics, Indian Institute of Technology Ropar, Ropar, Punjab, India
| | - Biswarup Pathak
- Department of Chemistry, Indian Institute of Technology Indore, Indore, Madhya Pradesh, India
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32
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Cesari C, Shon JH, Zacchini S, Berben LA. Metal carbonyl clusters of groups 8-10: synthesis and catalysis. Chem Soc Rev 2021; 50:9503-9539. [PMID: 34259674 DOI: 10.1039/d1cs00161b] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
In this review article, we discuss advances in the chemistry of metal carbonyl clusters (MCCs) spanning the last three decades, with an emphasis on the more recent reports and those involving groups 8-10 elements. Synthetic methods have advanced and been refined, leading to higher-nuclearity clusters and a wider array of structures and nuclearities. Our understanding of the electronic structure in MCCs has advanced to a point where molecular chemistry tools and other advanced tools can probe their properties at a level of detail that surpasses that possible with other nanomaterials and solid-state materials. MCCs therefore advance our understanding of structure-property-reactivity correlations in other higher-nuclearity materials. With respect to catalysis, this article focuses only on homogeneous applications, but it includes both thermally and electrochemically driven catalysis. Applications in thermally driven catalysis have found success where the reaction conditions stabilise the compounds toward loss of CO. In more recent years, MCCs, which exhibit delocalised bonding and possess many electron-withdrawing CO ligands, have emerged as very stable and effective for reductive electrocatalysis reactions since reduction often strengthens M-C(O) bonds and since room-temperature reaction conditions are sufficient for driving the electrocatalysis.
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Affiliation(s)
- Cristiana Cesari
- Dipartimento di Chimica Industriale "Toso Montanari", Università di Bologna, Viale Risorgimento 4, 40136 Bologna, Italy.
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Sonobe K, Tanabe M, Imaoka T, Chun WJ, Yamamoto K. Low-Temperature H 2 Reduction of Copper Oxide Subnanoparticles. Chemistry 2021; 27:8452-8456. [PMID: 33884681 DOI: 10.1002/chem.202100508] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Indexed: 11/08/2022]
Abstract
Subnanoparticles (SNPs) with sizes of approximately 1 nm are attractive for enhancing the catalytic performance of transition metals and their oxides. Such SNPs are of particular interest as redox-active catalysts in selective oxidation reactions. However, the electronic states and oxophilicity of copper oxide SNPs are still a subject of debate in terms of their redox properties during oxidation reactions for hydrocarbons. In this work, in situ X-ray absorption fine structure (XAFS) measurements of Cu28 Ox SNPs, which were prepared by using a dendritic phenylazomethine template, during temperature-programmed reduction (TPR) with H2 achieved lowering of the temperature (T50 =138 °C) reported thus far for the CuII →CuI reduction reaction because of Cu-O bond elongation in the ultrasmall copper oxide particles.
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Affiliation(s)
- Kazutaka Sonobe
- Laboratory for Chemistry and Life Science, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama, 226-8503, Japan
| | - Makoto Tanabe
- JST-ERATO, Yamamoto Atom Hybrid Project, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama, 226-8503, Japan
| | - Takane Imaoka
- Laboratory for Chemistry and Life Science, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama, 226-8503, Japan.,JST-ERATO, Yamamoto Atom Hybrid Project, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama, 226-8503, Japan
| | - Wang-Jae Chun
- Graduate School of Arts and Sciences, International Christian University, Mitaka, Tokyo, 181-8585, Japan
| | - Kimihisa Yamamoto
- Laboratory for Chemistry and Life Science, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama, 226-8503, Japan.,JST-ERATO, Yamamoto Atom Hybrid Project, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama, 226-8503, Japan
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34
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Jia Y, Yu X, Zhang H, Cheng L, Luo Z. Tetrahedral Pt 10- Cluster with Unique Beta Aromaticity and Superatomic Feature in Mimicking Methane. J Phys Chem Lett 2021; 12:5115-5122. [PMID: 34029091 DOI: 10.1021/acs.jpclett.1c01178] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Utilizing a customized metal cluster source in tandem with a flow tube reactor and a reflectron time-of-flight mass spectrometer, we have obtained well-resolved pure metal clusters Ptn- and observed their gas-phase reactions with a few small gas molecules. Interestingly, the remarkable inertness of Pt10- was repeatedly observed in different reactions. Meanwhile, we have determined the structure of Pt10- within a regular tetrahedron. Considering that Pt possesses 5d96s1 electron configuration, the tetrahedral Pt10- exhibits unexpected stability at neither a magic number of valence electrons nor a shell closure of geometric structure. Comprehensive theoretical calculations unveil the stability of Pt10- is significantly associated with the all-metal aromaticity. In addition to the classical total aromaticity, which is mainly due to 6s electrons, there is unique beta-aromaticity ascribed to spin-polarized beta 5d electrons pertaining to singly occupied multicenter bonds. Further, we demonstrate the superatomic feature of such a transition metal cluster Pt10-, as Pt6@Pt4-, in mimicking methane.
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Affiliation(s)
- Yuhan Jia
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xinlei Yu
- Department of Chemistry, Anhui University, Hefei 230601, China
- Key Laboratory of Structure and Functional Regulation of Hybrid Materials (Anhui University), Ministry of Education, Hefei 230601, PR China
| | - Hanyu Zhang
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Longjiu Cheng
- Department of Chemistry, Anhui University, Hefei 230601, China
- Key Laboratory of Structure and Functional Regulation of Hybrid Materials (Anhui University), Ministry of Education, Hefei 230601, PR China
| | - Zhixun Luo
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
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35
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Kawawaki T, Kataoka Y, Hirata M, Iwamatsu Y, Hossain S, Negishi Y. Toward the creation of high-performance heterogeneous catalysts by controlled ligand desorption from atomically precise metal nanoclusters. NANOSCALE HORIZONS 2021; 6:409-448. [PMID: 33903861 DOI: 10.1039/d1nh00046b] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Ligand-protected metal nanoclusters controlled by atomic accuracy (i. e. atomically precise metal NCs) have recently attracted considerable attention as active sites in heterogeneous catalysts. Using these atomically precise metal NCs, it becomes possible to create novel heterogeneous catalysts based on a size-specific electronic/geometrical structure of metal NCs and understand the mechanism of the catalytic reaction easily. However, to create high-performance heterogeneous catalysts using atomically precise metal NCs, it is often necessary to remove the ligands from the metal NCs. This review summarizes previous studies on the creation of heterogeneous catalysts using atomically precise metal NCs while focusing on the calcination as a ligand-elimination method. Through this summary, we intend to share state-of-art techniques and knowledge on (1) experimental conditions suitable for creating high-performance heterogeneous catalysts (e.g., support type, metal NC type, ligand type, and calcination temperature), (2) the mechanism of calcination, and (3) the mechanism of catalytic reaction over the created heterogeneous catalyst. We also discuss (4) issues that should be addressed in the future toward the creation of high-performance heterogeneous catalysts using atomically precise metal NCs. The knowledge and issues described in this review are expected to lead to clear design guidelines for the creation of novel heterogeneous catalysts.
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Affiliation(s)
- Tokuhisa Kawawaki
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan. and Photocatalysis International Research Center, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan and Research Institute for Science and Technology, Tokyo University of Science, Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Yuki Kataoka
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan.
| | - Momoko Hirata
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan.
| | - Yuki Iwamatsu
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan.
| | - Sakiat Hossain
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan.
| | - Yuichi Negishi
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan. and Photocatalysis International Research Center, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan and Research Institute for Science and Technology, Tokyo University of Science, Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
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36
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Kwon H, Pietrasiak E, Ohhara T, Nakao A, Chae B, Hwang CC, Jung D, Hwang IC, Ko YH, Kim K, Lee E. Programmable Synthesis of Silver Wheels. Inorg Chem 2021; 60:6403-6409. [PMID: 33856809 DOI: 10.1021/acs.inorgchem.1c00106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The synthesis of sandwich-shaped multinuclear silver complexes with planar penta- and tetranuclear wheel-shaped silver units and a central anion, [Agn(2-HPB)2(A-)](OTf-)n-1, nAgA, n = 4 or 5 and A- = OH- or F- or Cl-, is reported, along with complete spectroscopic and structural characterization. An NMR mechanistic study reveals that silver complexes were formed in the following order: 2Ag → 3AgH2O → 5AgOH → 4AgOH. The central hydroxides in 4AgOH and 5AgOH exhibit exotic physical properties due to the confined environment inside the complex. The size of these silver wheels can be tuned by changing the central anion or extracting/adding one silver atom. This study provides the facile way to synthesize discrete wheel-shaped multinuclear silver complexes and provides valuable insights into the dynamics of the self-assembly process.
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Affiliation(s)
- Hyunchul Kwon
- Department of Chemistry, Pohang University of Science and Technology, Pohang 37673, Republic of Korea
| | - Ewa Pietrasiak
- Department of Chemistry, Pohang University of Science and Technology, Pohang 37673, Republic of Korea
| | - Takashi Ohhara
- Neutron Science Section, J-PARC Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
| | - Akiko Nakao
- Center for Neutron Science and Technology, Comprehensive Research Organization for Science and Society (CROSS), Tokai 319-1106, Japan
| | - Boknam Chae
- Beamline Research Division, Pohang Accelerator Laboratory, Pohang 37673, Republic of Korea
| | - Chan-Cuk Hwang
- Beamline Research Division, Pohang Accelerator Laboratory, Pohang 37673, Republic of Korea
| | - Daesung Jung
- Beamline Research Division, Pohang Accelerator Laboratory, Pohang 37673, Republic of Korea
| | - In-Chul Hwang
- Center for Self-Assembly and Complexity, Institute for Basic Science (IBS), Pohang 37673, Republic of Korea
| | - Young Ho Ko
- Center for Self-Assembly and Complexity, Institute for Basic Science (IBS), Pohang 37673, Republic of Korea
| | - Kimoon Kim
- Department of Chemistry, Pohang University of Science and Technology, Pohang 37673, Republic of Korea.,Center for Self-Assembly and Complexity, Institute for Basic Science (IBS), Pohang 37673, Republic of Korea.,Division of Advanced Materials Science, Pohang University of Science and Technology, Pohang 37673, Republic of Korea
| | - Eunsung Lee
- Department of Chemistry, Pohang University of Science and Technology, Pohang 37673, Republic of Korea.,Center for Self-Assembly and Complexity, Institute for Basic Science (IBS), Pohang 37673, Republic of Korea.,Graduate School of Artificial Intelligence, Pohang University of Science and Technology, Pohang 37673, Republic of Korea
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37
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Tsukamoto T, Kambe T, Imaoka T, Yamamoto K. Modern cluster design based on experiment and theory. Nat Rev Chem 2021; 5:338-347. [PMID: 37117837 DOI: 10.1038/s41570-021-00267-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/25/2021] [Indexed: 01/21/2023]
Abstract
For decades, chemists have explored cluster compounds according to theoretical models that have proved too simplistic to accurately predict cluster properties, stabilities and functions. By incorporating molecular symmetry into existing cluster models, we can better study real polyatomic molecules and have new guidelines for their design. This symmetry-adapted cluster model allows us to discover substances that shatter the conventional notion of clusters. Theoretical predictors will point to the viability of new clusters, whose syntheses can be realized with parallel advances in experimental methods. This Perspective describes these modern experimental and theoretical strategies for cluster design and how they may give rise to new fields in cluster chemistry.
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Zhao J, Liu J, Jin C, Wang F. Subnanoscale Platinum by Repeated UV Irradiation: From One and Few Atoms to Clusters for the Automotive PEMFC. ACS APPLIED MATERIALS & INTERFACES 2021; 13:8395-8404. [PMID: 33570902 DOI: 10.1021/acsami.0c20935] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The unaffordable costs of the automotive proton exchange membrane fuel cell (PEMFC), remaining a roadblock for commercial applications as an alternative to combustion engine vehicles, can be overcome partially by remarkably increasing the utilization of irreplaceable platinum (Pt). Herein, atomically precise Pt with scalable atoms ranging from 1 to 43 atoms, stabilized by a homemade carbon from white radish without any ligands, is prepared by a repeated UV irradiation method that is industrially scalable. Compared with the isolated Pt1 in the form of Pt-N4, octahedral Pt6, and icosahedron Pt13, the ordered Pt43 cluster (∼0.75 nm) with higher metal coordination number displays much higher oxygen reduction reaction performance with a mass activity, which is about 1036% higher than that obtained by state-of-the-art Pt/C, an increase by a factor of ∼3.3 as compared with the DOE 2020 target (0.44 A mgPt-1). The utilization rate of Pt atoms reaches up to 94.7%, much higher than that of Pt (2 nm, 56%), capable of further reducing the amount of platinum that is required for PEMFCs. Moreover, the cluster exhibits an outstanding stability due to the improved Pt vacancy formation energy raised by stronger atom interaction in the close-packed cluster. The cluster exhibits a unique finite size effect from self-tuned energy band and strain levels. A clear strain effect on the d-band center is first presented for pure Pt without distortion from ligands like a second metal. Therefore, the assembly of subnanometer Pt with atom alteration opens up new horizons in designing efficient platinum group metal (PGM) catalysts by reducing the size to subnanometer scale.
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Affiliation(s)
- Jing Zhao
- State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Electrochemical Process and Technology for Materials, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jingjun Liu
- State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Electrochemical Process and Technology for Materials, Beijing University of Chemical Technology, Beijing 100029, China
| | - Chun Jin
- State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Electrochemical Process and Technology for Materials, Beijing University of Chemical Technology, Beijing 100029, China
| | - Feng Wang
- State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Electrochemical Process and Technology for Materials, Beijing University of Chemical Technology, Beijing 100029, China
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39
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Bock N, De Clercq A, Seidl L, Kratky T, Ma T, Günther S, Kortz U, Heiz U, Esch F. Towards Size‐Controlled Deposition of Palladium Nanoparticles from Polyoxometalate Precursors: An Electrochemical Scanning Tunneling Microscopy Study. ChemElectroChem 2021. [DOI: 10.1002/celc.202100131] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Nicolas Bock
- Catalysis Research Center and Chemistry Department Technical University of Munich Lichtenbergstr. 4 85748 Garching Germany
| | - Astrid De Clercq
- Catalysis Research Center and Chemistry Department Technical University of Munich Lichtenbergstr. 4 85748 Garching Germany
| | - Lukas Seidl
- Department Mobility Energy & Environment Swiss Federal Laboratories for Materials Science and Technology Überlandstrasse 129 8600 Dübendorf Switzerland
| | - Tim Kratky
- Catalysis Research Center and Chemistry Department Technical University of Munich Lichtenbergstr. 4 85748 Garching Germany
| | - Tian Ma
- Department of Life Sciences and Chemistry Jacobs University Campus Ring 1 28759 Bremen Germany
| | - Sebastian Günther
- Catalysis Research Center and Chemistry Department Technical University of Munich Lichtenbergstr. 4 85748 Garching Germany
| | - Ulrich Kortz
- Department of Life Sciences and Chemistry Jacobs University Campus Ring 1 28759 Bremen Germany
| | - Ueli Heiz
- Catalysis Research Center and Chemistry Department Technical University of Munich Lichtenbergstr. 4 85748 Garching Germany
| | - Friedrich Esch
- Catalysis Research Center and Chemistry Department Technical University of Munich Lichtenbergstr. 4 85748 Garching Germany
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Zhuang Z, Du C, Li P, Zhang Z, Fang Z, Guo J, Chen W. Pt21(C4O4SH5)21 clusters: atomically precise synthesis and enhanced electrocatalytic activity for hydrogen generation. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2020.137608] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Wakizaka M, Chun W, Imaoka T, Yamamoto K. Multiple‐Oxidation‐State Tungsten‐Oxide Clusters on a Carbon Surface as an Intersection between Molecular and Bulk Oxides. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202001104] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Masanori Wakizaka
- Laboratory for Chemistry and Life Science Institute of Innovative Research Tokyo Institute of Technology Yokohama 226-8503 Japan
| | - Wang‐Jae Chun
- Graduate School of Arts and Sciences International Christian University Tokyo 181-8585 Japan
| | - Takane Imaoka
- Laboratory for Chemistry and Life Science Institute of Innovative Research Tokyo Institute of Technology Yokohama 226-8503 Japan
| | - Kimihisa Yamamoto
- Laboratory for Chemistry and Life Science Institute of Innovative Research Tokyo Institute of Technology Yokohama 226-8503 Japan
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Moriai T, Tsukamoto T, Tanabe M, Kambe T, Yamamoto K. Selective Hydroperoxygenation of Olefins Realized by a Coinage Multimetallic 1‐Nanometer Catalyst. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202010190] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Tatsuya Moriai
- Institute of Innovative Research Tokyo Institute of Technology 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
| | - Takamasa Tsukamoto
- Institute of Innovative Research Tokyo Institute of Technology 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
- JST-ERATO Yamamoto Atom Hybrid Project Tokyo Institute of Technology 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
| | - Makoto Tanabe
- JST-ERATO Yamamoto Atom Hybrid Project Tokyo Institute of Technology 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
| | - Tetsuya Kambe
- Institute of Innovative Research Tokyo Institute of Technology 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
- JST-ERATO Yamamoto Atom Hybrid Project Tokyo Institute of Technology 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
| | - Kimihisa Yamamoto
- Institute of Innovative Research Tokyo Institute of Technology 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
- JST-ERATO Yamamoto Atom Hybrid Project Tokyo Institute of Technology 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
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Moriai T, Tsukamoto T, Tanabe M, Kambe T, Yamamoto K. Selective Hydroperoxygenation of Olefins Realized by a Coinage Multimetallic 1-Nanometer Catalyst. Angew Chem Int Ed Engl 2020; 59:23051-23055. [PMID: 32844511 DOI: 10.1002/anie.202010190] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Indexed: 11/07/2022]
Abstract
The science of particles on a sub-nanometer (ca. 1 nm) scale has attracted worldwide attention. However, it has remained unexplored because of the technical difficulty in the precise synthesis of sub-nanoparticles (SNPs). We recently developed the "atom-hybridization method (AHM)" for the precise synthesis of SNPs by using a suitably designed macromolecule as a template. We have now investigated the chemical reactivity of alloy SNPs obtained by the AHM. Focusing on the coinage metal elements, we systematically evaluated the oxidation reaction of an olefin catalyzed by these SNPs. The SNPs showed high catalytic performance even under milder conditions than those used with conventional catalysts. Additionally, the hybridization of multiple elements enhanced the turnover frequency and the selectivity for the formation of the hydroperoxide derivative. We discuss the unique quantum-sized catalysts providing generally unstable hydroperoxides from the viewpoint of the miniaturization and hybridization of materials.
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Affiliation(s)
- Tatsuya Moriai
- Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama, 226-8503, Japan
| | - Takamasa Tsukamoto
- Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama, 226-8503, Japan.,JST-ERATO, Yamamoto Atom Hybrid Project, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama, 226-8503, Japan
| | - Makoto Tanabe
- JST-ERATO, Yamamoto Atom Hybrid Project, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama, 226-8503, Japan
| | - Tetsuya Kambe
- Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama, 226-8503, Japan.,JST-ERATO, Yamamoto Atom Hybrid Project, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama, 226-8503, Japan
| | - Kimihisa Yamamoto
- Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama, 226-8503, Japan.,JST-ERATO, Yamamoto Atom Hybrid Project, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama, 226-8503, Japan
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Rong H, Ji S, Zhang J, Wang D, Li Y. Synthetic strategies of supported atomic clusters for heterogeneous catalysis. Nat Commun 2020; 11:5884. [PMID: 33208740 PMCID: PMC7674434 DOI: 10.1038/s41467-020-19571-6] [Citation(s) in RCA: 86] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Accepted: 10/15/2020] [Indexed: 01/09/2023] Open
Abstract
Supported atomic clusters with uniform metal sites and definite low-nuclearity are intermediate states between single-atom catalysts (SACs) and nanoparticles in size. Benefiting from the presence of metal–metal bonds, supported atomic clusters can trigger synergistic effects among every metal atom, which contributes to achieving unique catalytic properties different from SACs and nanoparticles. However, the scalable and precise synthesis and atomic-level insights into the structure–properties relationship of supported atomic clusters is a great challenge. This perspective presents the latest progress of the synthesis of supported atomic clusters, highlights how the structure affects catalytic properties, and discusses the limitations as well as prospects. Supported atomic clusters with precise nuclearity are intermediate states between single-atom catalysts and nanoparticles in size. Here the authors summarize and discuss synthetic strategies of supported atomic clusters with unique catalytic properties for heterogeneous reactions.
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Affiliation(s)
- Hongpan Rong
- Beijing Key Laboratory of Construction-Tailorable Advanced Functional Materials and Green Applications, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Shufang Ji
- Department of Chemistry, Tsinghua University, Beijing, 100084, China.
| | - Jiatao Zhang
- Beijing Key Laboratory of Construction-Tailorable Advanced Functional Materials and Green Applications, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China.
| | - Dingsheng Wang
- Department of Chemistry, Tsinghua University, Beijing, 100084, China.
| | - Yadong Li
- Department of Chemistry, Tsinghua University, Beijing, 100084, China
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Wakizaka M, Chun WJ, Imaoka T, Yamamoto K. Metallic Tungsten Nanoparticles That Exhibit an Electronic State Like Carbides during the Carbothermal Reduction of WCl 6 by Hydrogen. Inorg Chem 2020; 59:15690-15695. [PMID: 33085886 DOI: 10.1021/acs.inorgchem.0c01930] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Carbothermal hydrogen reduction (CHR) is a unique dry chemical process used to fabricate metals and carbides on carbon supports. In this study, a stepwise CHR of WCl6 on a graphite support is demonstrated for the first time. Powder X-ray diffraction studies revealed that, at 773 K, metallic tungsten nanoparticles are produced, whereas, at 1073 K, the metastable W2C phase is generated rather than the thermodynamically stable WC phase. X-ray photoelectron spectroscopy and X-ray absorption near edge structure studies showed that the chemical state of the W nanoparticles simultaneously exhibits metallic W(∼0) and carbide W(δ+) character. The obtained results suggest that, although electronic interactions exist between the metallic W atoms and the graphite support, the body-centered cubic structure of the metallic tungsten is maintained, confirmed by the extended X-ray absorption fine structure. In addition, high-resolution scanning transmission electron microscopy observations revealed that the W nanoparticles exhibit a thin flattened shape on the support. These results support the notion that the mechanism for the formation of the W nanoparticles during the CHR is influenced by the electronic interactions between the W nanoparticles and the graphite support. Our work thus suggests that the combination of early-transition-metal atoms and carbon-based supports would afford modulatable electronic systems though the electronic interactions.
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Affiliation(s)
- Masanori Wakizaka
- Laboratory for Chemistry and Life Science Institute of Innovative Research, Tokyo Institute of Technology, Yokohama 226-8503, Japan
| | - Wang-Jae Chun
- Graduate School of Arts and Sciences, International Christian University, Tokyo 181-8585, Japan
| | - Takane Imaoka
- Laboratory for Chemistry and Life Science Institute of Innovative Research, Tokyo Institute of Technology, Yokohama 226-8503, Japan
| | - Kimihisa Yamamoto
- Laboratory for Chemistry and Life Science Institute of Innovative Research, Tokyo Institute of Technology, Yokohama 226-8503, Japan
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Bera RK, Park H, Ko SH, Ryoo R. Highly dispersed Pt nanoclusters supported on zeolite-templated carbon for the oxygen reduction reaction. RSC Adv 2020; 10:32290-32295. [PMID: 35516496 PMCID: PMC9056618 DOI: 10.1039/d0ra05654e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Accepted: 08/26/2020] [Indexed: 12/30/2022] Open
Abstract
The formation of highly dispersed Pt nanoclusters supported on zeolite-templated carbon (PtNC/ZTC) by a facile electrochemical method as an electrocatalyst for the oxygen reduction reaction (ORR) is reported. The uniform micropores of ZTC serve as nanocages to stabilize the PtNCs with a sharp size distribution of 0.8–1.5 nm. The resultant PtNC/ZTC exhibits excellent catalytic activity for the ORR due to the small size of the Pt clusters and high accessibility of the active sites through the abundant micropores in ZTC. Electrochemically synthesized highly dispersed Pt nanoclusters (PtNCs) stabilized by the nanocages of zeolite-templated carbon (ZTC) exhibit excellent electrocatalytic performance toward the oxygen reduction reaction.![]()
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Affiliation(s)
- Raj Kumar Bera
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science (IBS) Daejeon 34141 Republic of Korea
| | - Hongjun 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
| | - Seung Hyeon Ko
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science (IBS) Daejeon 34141 Republic of Korea
| | - Ryong Ryoo
- 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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Li S, Chen H, Liu X, Liu H, Ma J, Zhu Y. The precise editing of surface sites on a molecular-like gold catalyst for modulating regioselectivity. Chem Sci 2020; 11:8000-8004. [PMID: 34094168 PMCID: PMC8163066 DOI: 10.1039/d0sc02207a] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
It is extremely difficult to precisely edit a surface site on a typical nanoparticle catalyst without changing other parts of the catalyst. This precludes a full understanding of which site primarily determines the catalytic properties. Here, we couple experimental data collection with theoretical analysis to correlate rich structural information relating to atomically precise gold clusters with the catalytic performance for the click reaction of phenylacetylene and benzyl azide. We also identify a specific surface site that is capable of achieving high regioselectivity. We further conduct site-specific editing on a thiolate-protected gold cluster by peeling off two monomeric RS–Au–SR motifs and replacing them with two Ph2P–CH2–PPh2 staples. We demonstrate that the surface Au–Ph2P–CH2–PPh2–Au motifs enable extraordinary regioselectivity for the click reaction of alkyne and azide. The editing strategy for the surface motifs allows us to exploit previously inaccessible individual active sites and elucidate which site can explicitly govern the reaction outcome. Editing surface motifs on gold cluster catalysts achieves high regioselectivity for the click reactions of azides and alkynes.![]()
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Affiliation(s)
- Shuohao Li
- School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210093 China
| | - Hongwei Chen
- School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210093 China
| | - Xu Liu
- School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210093 China
| | - Haoqi Liu
- School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210093 China
| | - Jing Ma
- School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210093 China
| | - Yan Zhu
- School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210093 China
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Zhang X, Zhang Y, Cheng C, Yang Z, Hermansson K. Tuning the ORR activity of Pt-based Ti 2CO 2 MXenes by varying the atomic cluster size and doping with metals. NANOSCALE 2020; 12:12497-12507. [PMID: 32496491 DOI: 10.1039/d0nr00048e] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The rational design of ideal catalysts for the oxygen reduction reaction (ORR) is of great significance for solving the electrocatalytic potential problems in proton exchange membrane fuel cells (PEMFCs). Ptn (n = 1-4) and Pt3Au alloy subnanoclusters supported on a defective Ti2CO2 monolayer with oxygen vacancies (denoted as v-Ti2CO2) are simulated by using density functional theory to investigate their ORR performance. The geometries, energetics, and electronic properties of the different systems are analyzed. It is found that the supported Pt3Au alloy subnanocluster possesses the best ORR activity. The underlying mechanisms of the improved ORR activity originates from the moderate hybridization between the O 2p and the 5d orbitals of Au and Pt according to the density of states analysis. Our study suggests a facile route for designing low-cost MXene-based electrocatalysts by alloying transition metals with Pt catalysts, which may stimulate realization of suitable alternative catalysts for ORR catalysis.
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Affiliation(s)
- Xilin Zhang
- School of Physics, Henan Normal University, Henan Key Laboratory of Photovoltaic Materials, Xinxiang 453007, China.
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Kambe T, Watanabe A, Li M, Tsukamoto T, Imaoka T, Yamamoto K. Superatomic Gallium Clusters in Dendrimers: Unique Rigidity and Reactivity Depending on their Atomicity. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1907167. [PMID: 32080936 DOI: 10.1002/adma.201907167] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Revised: 12/24/2019] [Indexed: 06/10/2023]
Abstract
Superatoms have been investigated due to their possible substitution for other elements. The solution-phase synthesis of superatoms has attracted attention to realize the availability of superatoms. However, the previous approach is basically limited to the formation of a single cluster. Here, superatoms are investigated and the number of valence electrons in these superatoms is changed by designing the number of gallium atoms present. Based on the dendrimer template method, clusters consisting of 3, 12, 13, and other numbers of atoms have been synthesized. The halogen-like superatomic nature of Ga13 is structurally and electrochemically observed as completely different to the other clusters. The gallium clusters of 13 and 3 atoms, which can fill the 2P and 1P superatomic orbitals, respectively, exhibit different reactivities. The 3-atom gallium cluster is suggested as being reduced to Ga3 H2 - due to the lower shift of energy levels in the unoccupied orbitals. The results for these gallium clusters provide candidates for superatoms.
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Affiliation(s)
- Tetsuya Kambe
- Laboratory for Chemistry and Life Science, Tokyo Institute of Technology, 4259 Nagatsutacho, Midori-ku, Yokohama, 226-8503, Japan
- ERATO Japan Science and Technology (JST), 4259 Nagatsutacho, Midori-ku, Yokohama, 226-8503, Japan
| | - Aiko Watanabe
- Laboratory for Chemistry and Life Science, Tokyo Institute of Technology, 4259 Nagatsutacho, Midori-ku, Yokohama, 226-8503, Japan
| | - Meijia Li
- Laboratory for Chemistry and Life Science, Tokyo Institute of Technology, 4259 Nagatsutacho, Midori-ku, Yokohama, 226-8503, Japan
| | - Takamasa Tsukamoto
- Laboratory for Chemistry and Life Science, Tokyo Institute of Technology, 4259 Nagatsutacho, Midori-ku, Yokohama, 226-8503, Japan
- ERATO Japan Science and Technology (JST), 4259 Nagatsutacho, Midori-ku, Yokohama, 226-8503, Japan
| | - Takane Imaoka
- Laboratory for Chemistry and Life Science, Tokyo Institute of Technology, 4259 Nagatsutacho, Midori-ku, Yokohama, 226-8503, Japan
- ERATO Japan Science and Technology (JST), 4259 Nagatsutacho, Midori-ku, Yokohama, 226-8503, Japan
| | - Kimihisa Yamamoto
- Laboratory for Chemistry and Life Science, Tokyo Institute of Technology, 4259 Nagatsutacho, Midori-ku, Yokohama, 226-8503, Japan
- ERATO Japan Science and Technology (JST), 4259 Nagatsutacho, Midori-ku, Yokohama, 226-8503, Japan
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