1
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Li J, Zhang D, Guo Z, Chen Z, Jiang X, Larson JM, Zhu H, Zhang T, Gu Y, Blankenship BW, Chen M, Wu Z, Huang S, Kostecki R, Minor AM, Grigoropoulos CP, Akinwande D, Terrones M, Redwing JM, Li H, Zheng Y. Light-driven C-H activation mediated by 2D transition metal dichalcogenides. Nat Commun 2024; 15:5546. [PMID: 38956055 PMCID: PMC11219765 DOI: 10.1038/s41467-024-49783-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Accepted: 06/14/2024] [Indexed: 07/04/2024] Open
Abstract
C-H bond activation enables the facile synthesis of new chemicals. While C-H activation in short-chain alkanes has been widely investigated, it remains largely unexplored for long-chain organic molecules. Here, we report light-driven C-H activation in complex organic materials mediated by 2D transition metal dichalcogenides (TMDCs) and the resultant solid-state synthesis of luminescent carbon dots in a spatially-resolved fashion. We unravel the efficient H adsorption and a lowered energy barrier of C-C coupling mediated by 2D TMDCs to promote C-H activation and carbon dots synthesis. Our results shed light on 2D materials for C-H activation in organic compounds for applications in organic chemistry, environmental remediation, and photonic materials.
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Affiliation(s)
- Jingang Li
- Materials Science & Engineering Program, Texas Materials Institute, Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX, USA
- Laser Thermal Laboratory, Department of Mechanical Engineering, University of California, Berkeley, CA, USA
| | - Di Zhang
- Advanced Institute for Materials Research (WPI-AIMR), Tohoku University, Sendai, Japan
| | - Zhongyuan Guo
- Advanced Institute for Materials Research (WPI-AIMR), Tohoku University, Sendai, Japan
| | - Zhihan Chen
- Materials Science & Engineering Program, Texas Materials Institute, Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX, USA
| | - Xi Jiang
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Jonathan M Larson
- Department of Chemistry and Biochemistry, Baylor University, Waco, TX, USA
| | - Haoyue Zhu
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA, USA
| | - Tianyi Zhang
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA, USA
| | - Yuqian Gu
- Chandra Family Department of Electrical & Computer Engineering, The University of Texas at Austin, Austin, TX, USA
| | - Brian W Blankenship
- Laser Thermal Laboratory, Department of Mechanical Engineering, University of California, Berkeley, CA, USA
| | - Min Chen
- Department of Materials Science and Engineering, University of California, Berkeley, CA, USA
| | - Zilong Wu
- Materials Science & Engineering Program, Texas Materials Institute, Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX, USA
| | - Suichu Huang
- Materials Science & Engineering Program, Texas Materials Institute, Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX, USA
| | - Robert Kostecki
- Energy Storage and Distributed Resources Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Andrew M Minor
- Department of Materials Science and Engineering, University of California, Berkeley, CA, USA
- National Center for Electron Microscopy, Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Costas P Grigoropoulos
- Laser Thermal Laboratory, Department of Mechanical Engineering, University of California, Berkeley, CA, USA
| | - Deji Akinwande
- Chandra Family Department of Electrical & Computer Engineering, The University of Texas at Austin, Austin, TX, USA
| | - Mauricio Terrones
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA, USA
- Center for Two-Dimensional and Layered Materials, The Pennsylvania State University, University Park, PA, USA
- Department of Physics, Department of Chemistry, The Pennsylvania State University, University Park, PA, USA
| | - Joan M Redwing
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA, USA
- 2D Crystal Consortium, Materials Research Institute, The Pennsylvania State University, University Park, PA, USA
| | - Hao Li
- Advanced Institute for Materials Research (WPI-AIMR), Tohoku University, Sendai, Japan.
| | - Yuebing Zheng
- Materials Science & Engineering Program, Texas Materials Institute, Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX, USA.
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2
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Qin Y, Li L, Liu H, Han J, Wang H, Zhu X, Ge Q. Anionic oxyl radical formed on CrVI-oxo anchored on the defect site of the UiO-66 node facilitates methane to methanol conversion. J Chem Phys 2024; 160:134701. [PMID: 38557845 DOI: 10.1063/5.0201753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Accepted: 03/13/2024] [Indexed: 04/04/2024] Open
Abstract
The direct conversion of methane to methanol has attracted increasing interest due to abundant and low-cost natural gas resources. Herein, by anchoring Cr-oxo/-oxyhydroxides on UiO-66 metal-organic frameworks, we demonstrate that reactive anionic oxyl radicals can be formed by controlling the coordination environment based on the results of density functional theory calculations. The anionic oxyl radicals produced at the completely oxidized CrVI site acted as the active species for facile methane activation. The thermodynamically stable CrVI-oxo/-oxyhydroxides with the anionic oxyl radicals catalyze the activation of the methane C-H bond through a homolytic mechanism. An analysis of the results showed that the catalytic performance of the active oxyl species correlates with the reaction energy of methane activation and H adsorption energies. Following methanol formation, N2O can regenerate the active sites on the most stable CrVI oxyhydroxides, i.e., the Cr(O)4Hf species. The present study demonstrated that the anionic oxyl radicals formed on the anchored CrVI oxyhydroxides by tuning the coordination environment enabled facile methane activation and facilitated methanol production.
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Affiliation(s)
- Yuyao Qin
- Collaborative Innovation Center of Chemical Science and Engineering, Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Liwen Li
- Collaborative Innovation Center of Chemical Science and Engineering, Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Huixian Liu
- Collaborative Innovation Center of Chemical Science and Engineering, Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Jinyu Han
- Collaborative Innovation Center of Chemical Science and Engineering, Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Hua Wang
- Collaborative Innovation Center of Chemical Science and Engineering, Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Xinli Zhu
- Collaborative Innovation Center of Chemical Science and Engineering, Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Qingfeng Ge
- Department of Chemistry and Biochemistry, Southern Illinois University, Carbondale, Illinois 62901, USA
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3
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McCarver GA, Yildirim T, Zhou W. Catalyst Engineering for the Selective Reduction of CO 2 to CH 4 : A First-Principles Study on X-MOF-74 (X=Mg, Mn, Fe, Co, Ni, Cu, Zn). Chemphyschem 2023:e202300645. [PMID: 37801605 DOI: 10.1002/cphc.202300645] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 09/29/2023] [Accepted: 10/06/2023] [Indexed: 10/08/2023]
Abstract
The conversion of carbon dioxide (CO2 ) into more valuable chemical compounds represents a critical objective for addressing environmental challenges and advancing sustainable energy sources. The CO2 reduction reaction (CO2 RR) holds promise for transforming CO2 into versatile feedstock materials and fuels. Leveraging first-principles methodologies provides a robust approach to evaluate catalysts and steer experimental efforts. In this study, we examine the CO2 RR process using a diverse array of representative cluster models derived from X-MOF-74 (where X encompasses Mg, Mn, Fe, Co, Ni, Cu, or Zn) through first-principles methods. Notably, our investigation highlights the Fe-MOF-74 cluster's unique attributes, including favorable CO2 binding and the lowest limiting potential of the studied clusters for converting CO2 to methane (CH4 ) at 0.32 eV. Our analysis identified critical factors driving the selective CO2 RR pathway, enabling the formation CH4 on the Fe-MOF-74 cluster. These factors involve less favorable reduction of hydrogen to H2 and strong binding affinities between the Fe open-metal site and reduction intermediates, effectively curtailing desorption processes of closed-shell intermediates such as formic acid (HCOOH), formaldehyde (CH2 O), and methanol (CH3 OH), to lead to selective CH4 formation.
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Affiliation(s)
- Gavin A McCarver
- NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA
| | - Taner Yildirim
- NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA
| | - Wei Zhou
- NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA
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4
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Tofoni A, Tavani F, Vandone M, Braglia L, Borfecchia E, Ghigna P, Stoian DC, Grell T, Stolfi S, Colombo V, D’Angelo P. Full Spectroscopic Characterization of the Molecular Oxygen-Based Methane to Methanol Conversion over Open Fe(II) Sites in a Metal-Organic Framework. J Am Chem Soc 2023; 145:21040-21052. [PMID: 37721732 PMCID: PMC10540213 DOI: 10.1021/jacs.3c07216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Indexed: 09/19/2023]
Abstract
Iron-based enzymes efficiently activate molecular oxygen to perform the oxidation of methane to methanol (MTM), a reaction central to the contemporary chemical industry. Conversely, a very limited number of artificial catalysts have been devised to mimic this process. Herein, we employ the MIL-100(Fe) metal-organic framework (MOF), a material that exhibits isolated Fe sites, to accomplish the MTM conversion using O2 as the oxidant under mild conditions. We apply a diverse set of advanced operando X-ray techniques to unveil how MIL-100(Fe) can act as a catalyst for direct MTM conversion. Single-phase crystallinity and stability of the MOF under reaction conditions (200 or 100 °C, CH4 + O2) are confirmed by X-ray diffraction measurements. X-ray absorption, emission, and resonant inelastic scattering measurements show that thermal treatment above 200 °C generates Fe(II) sites that interact with O2 and CH4 to produce methanol. Experimental evidence-driven density functional theory (DFT) calculations illustrate that the MTM reaction involves the oxidation of the Fe(II) sites to Fe(III) via a high-spin Fe(IV)═O intermediate. Catalyst deactivation is proposed to be caused by the escape of CH3• radicals from the relatively large MOF pore cages, ultimately resulting in the formation of hydroxylated triiron units, as proven by valence-to-core X-ray emission spectroscopy. The O2-based MTM catalytic activity of MIL-100(Fe) in the investigated conditions is demonstrated for two consecutive reaction cycles, proving the MOF potential toward active site regeneration. These findings will desirably lay the groundwork for the design of improved MOF catalysts for the MTM conversion.
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Affiliation(s)
- Alessandro Tofoni
- Dipartimento
di Chimica, Università degli Studi
di Roma “La Sapienza”, P.le A. Moro 5, I-00185 Rome, Italy
| | - Francesco Tavani
- Dipartimento
di Chimica, Università degli Studi
di Roma “La Sapienza”, P.le A. Moro 5, I-00185 Rome, Italy
| | - Marco Vandone
- Dipartimento
di Chimica & UdR INSTM di Milano, Università
degli Studi di Milano, Via Golgi 19, 20133 Milan, Italy
| | - Luca Braglia
- CNR-Istituto
Officina dei Materiali, TASC, 34149 Trieste, Italy
| | - Elisa Borfecchia
- Dipartimento
di Chimica & UdR INSTM di Torino, Università
di Torino, Via P. Giuria
7, 10125 Turin, Italy
| | - Paolo Ghigna
- Dipartimento
di Chimica, Università di Pavia, V.le Taramelli 13, I-27100 Pavia, Italy
| | - Dragos Costantin Stoian
- The Swiss-Norwegian
Beamlines (SNBL), European Synchrotron Radiation Facility, BP 220, 38043 Grenoble, France
| | - Toni Grell
- Dipartimento
di Chimica & UdR INSTM di Milano, Università
degli Studi di Milano, Via Golgi 19, 20133 Milan, Italy
| | - Sara Stolfi
- CNR-Istituto
Officina dei Materiali, TASC, 34149 Trieste, Italy
| | - Valentina Colombo
- Dipartimento
di Chimica & UdR INSTM di Milano, Università
degli Studi di Milano, Via Golgi 19, 20133 Milan, Italy
- CNR
− SCITEC − Istituto di Scienze e Tecnologie Chimiche
“Giulio Natta”, Via Golgi 19, 20133 Milan, Italy
| | - Paola D’Angelo
- Dipartimento
di Chimica, Università degli Studi
di Roma “La Sapienza”, P.le A. Moro 5, I-00185 Rome, Italy
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5
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Adamji H, Nandy A, Kevlishvili I, Román-Leshkov Y, Kulik HJ. Computational Discovery of Stable Metal-Organic Frameworks for Methane-to-Methanol Catalysis. J Am Chem Soc 2023. [PMID: 37339429 DOI: 10.1021/jacs.3c03351] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/22/2023]
Abstract
The challenge of direct partial oxidation of methane to methanol has motivated the targeted search of metal-organic frameworks (MOFs) as a promising class of materials for this transformation because of their site-isolated metals with tunable ligand environments. Thousands of MOFs have been synthesized, yet relatively few have been screened for their promise in methane conversion. We developed a high-throughput virtual screening workflow that identifies MOFs from a diverse space of experimental MOFs that have not been studied for catalysis, yet are thermally stable, synthesizable, and have promising unsaturated metal sites for C-H activation via a terminal metal-oxo species. We carried out density functional theory calculations of the radical rebound mechanism for methane-to-methanol conversion on models of the secondary building units (SBUs) from 87 selected MOFs. While we showed that oxo formation favorability decreases with increasing 3d filling, consistent with prior work, previously observed scaling relations between oxo formation and hydrogen atom transfer (HAT) are disrupted by the greater diversity in our MOF set. Accordingly, we focused on Mn MOFs, which favor oxo intermediates without disfavoring HAT or leading to high methanol release energies─a key feature for methane hydroxylation activity. We identified three Mn MOFs comprising unsaturated Mn centers bound to weak-field carboxylate ligands in planar or bent geometries with promising methane-to-methanol kinetics and thermodynamics. The energetic spans of these MOFs are indicative of promising turnover frequencies for methane to methanol that warrant further experimental catalytic studies.
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Affiliation(s)
- Husain Adamji
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Aditya Nandy
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Ilia Kevlishvili
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Yuriy Román-Leshkov
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Heather J Kulik
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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6
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Liu L, Corma A. Bimetallic Sites for Catalysis: From Binuclear Metal Sites to Bimetallic Nanoclusters and Nanoparticles. Chem Rev 2023; 123:4855-4933. [PMID: 36971499 PMCID: PMC10141355 DOI: 10.1021/acs.chemrev.2c00733] [Citation(s) in RCA: 57] [Impact Index Per Article: 57.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Indexed: 03/29/2023]
Abstract
Heterogeneous bimetallic catalysts have broad applications in industrial processes, but achieving a fundamental understanding on the nature of the active sites in bimetallic catalysts at the atomic and molecular level is very challenging due to the structural complexity of the bimetallic catalysts. Comparing the structural features and the catalytic performances of different bimetallic entities will favor the formation of a unified understanding of the structure-reactivity relationships in heterogeneous bimetallic catalysts and thereby facilitate the upgrading of the current bimetallic catalysts. In this review, we will discuss the geometric and electronic structures of three representative types of bimetallic catalysts (bimetallic binuclear sites, bimetallic nanoclusters, and nanoparticles) and then summarize the synthesis methodologies and characterization techniques for different bimetallic entities, with emphasis on the recent progress made in the past decade. The catalytic applications of supported bimetallic binuclear sites, bimetallic nanoclusters, and nanoparticles for a series of important reactions are discussed. Finally, we will discuss the future research directions of catalysis based on supported bimetallic catalysts and, more generally, the prospective developments of heterogeneous catalysis in both fundamental research and practical applications.
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Affiliation(s)
- Lichen Liu
- Department
of Chemistry, Tsinghua University, Beijing 100084, China
| | - Avelino Corma
- Instituto
de Tecnología Química, Universitat
Politècnica de València−Consejo Superior de Investigaciones
Científicas (UPV-CSIC), Avenida de los Naranjos s/n, Valencia 46022, Spain
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7
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Hall JN, Kropf AJ, Delferro M, Bollini P. Kinetic and X-ray Absorption Spectroscopic Analysis of Catalytic Redox Cycles over Highly Uniform Polymetal Oxo Clusters. ACS Catal 2023. [DOI: 10.1021/acscatal.2c06023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/08/2023]
Affiliation(s)
- Jacklyn N. Hall
- William A. Brookshire Department of Chemical and Biomolecular Engineering, University of Houston, Houston, Texas 77204, United States
| | - A. Jeremy Kropf
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Massimiliano Delferro
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Praveen Bollini
- William A. Brookshire Department of Chemical and Biomolecular Engineering, University of Houston, Houston, Texas 77204, United States
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8
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Abstract
This Perspective presents a review of our work and that of others in the highly controversial topic of the coupling of protein dynamics to reaction in enzymes. We have been involved in studying this topic for many years. Thus, this perspective will naturally present our own views, but it also is designed to present an overview of the variety of viewpoints of this topic, both experimental and theoretical. This is obviously a large and contentious topic.
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Affiliation(s)
- Steven D Schwartz
- Department of Chemistry and Biochemistry, University of Arizona, Tucson, Arizona 85721, United States
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9
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Antil N, Chauhan M, Akhtar N, Kalita R, Manna K. Selective Methane Oxidation to Acetic Acid Using Molecular Oxygen over a Mono-Copper Hydroxyl Catalyst. J Am Chem Soc 2023; 145:6156-6165. [PMID: 36897313 DOI: 10.1021/jacs.2c12042] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/11/2023]
Abstract
Acetic acid is an industrially important chemical, produced mainly via carbonylation of methanol using precious metal-based homogeneous catalysts. As a low-cost feedstock, methane is commercially transformed to acetic acid via a multistep process involving energy-intensive methane steam reforming, methanol synthesis, and, subsequently, methanol carbonylation. Here, we report a direct single-step conversion of methane to acetic acid using molecular oxygen (O2) as the oxidant under mild conditions over a mono-copper hydroxyl site confined in a porous cerium metal-organic framework (MOF), Ce-UiO-Cu(OH). The Ce-UiO MOF-supported single-site copper hydroxyl catalyst gave exceptionally high acetic acid productivity of 335 mmolgcat-1 in 96% selectivity with a Cu TON up to 400 at 115 °C in water. Our spectroscopic and theoretical studies and controlled experiments reveal that the conversion of methane to acetic acid occurs via oxidative carbonylation, where methane is first activated at the copper hydroxyl site via σ-bond metathesis to afford Cu-methyl species, followed by carbonylation with in situ-generated carbon monoxide and subsequent hydrolysis by water. This work may guide the rational design of heterogeneous abundant metal catalysts for the activation and conversion of methane to acetic acid and other valuable chemicals under mild and environmentally friendly reaction conditions.
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Affiliation(s)
- Neha Antil
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Manav Chauhan
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Naved Akhtar
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Rahul Kalita
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Kuntal Manna
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
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10
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Yang WL, Zhang SD, Zhang MY. Theoretical Study of the Natural Active Structure of the Fe-SSZ-13 Zeolite and its Reactivity toward the Methane to Methanol Oxidation Reaction. Chem Phys Lett 2023. [DOI: 10.1016/j.cplett.2023.140440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/22/2023]
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11
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Dong A, Chen D, Li Q, Qian J. Metal-Organic Frameworks for Greenhouse Gas Applications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2201550. [PMID: 36563116 DOI: 10.1002/smll.202201550] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 11/15/2022] [Indexed: 06/17/2023]
Abstract
Using petrol to supply energy for a car or burning coal to heat a building generates plenty of greenhouse gas (GHG) emissions, including carbon dioxide (CO2 ), water vapor (H2 O), methane (CH4 ), nitrous oxide (N2 O), ozone (O3 ), fluorinated gases. These up-and-coming metal-organic frameworks (MOFs) are structurally endowed with rigid inorganic nodes and versatile organic linkers, which have been extensively used in the GHG-related applications to improve the lives and protect the environment. Porous MOF materials and their derivatives have been demonstrated to be competitive and promising candidates for GHG separation, storage and conversions as they shows facile preparation, large porosity, adjustable nanostructure, abundant topology, and tunable physicochemical property. Enormous progress has been made in GHG storage and separation intrinsically stemmed from the different interaction between guest molecule and host framework from MOF itself in the recent five years. Meanwhile, the use of porous MOF materials to transform GHG and the influence of external conditions on the adsorption performance of MOFs for GHG are also enclosed. In this review, it is also highlighted that the existing challenges and future directions are discussed and envisioned in the rational design, facile synthesis and comprehensive utilization of MOFs and their derivatives for practical applications.
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Affiliation(s)
- Anrui Dong
- Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, 325000, P. R. China
| | - Dandan Chen
- Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, 325000, P. R. China
| | - Qipeng Li
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, P. R. China
- College of Chemistry and Chemical Engineering, Zhaotong University, Zhaotong, 657099, P. R. China
| | - Jinjie Qian
- Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, 325000, P. R. China
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, P. R. China
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12
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Ganai A, Ball B, Sarkar P. Modulating the Energetics of C-H Bond Activation in Methane by Utilizing Metalated Porphyrinic Metal-Organic Frameworks. J Phys Chem Lett 2023; 14:1832-1839. [PMID: 36779674 DOI: 10.1021/acs.jpclett.2c03891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
In recent years, much effort has been directed toward utilizing metal-organic frameworks (MOFs) for activating C-H bonds of light alkanes. The energy demanding steps involved in the catalytic pathway are the formation of metal-oxo species and the subsequent cleavage of the C-H bonds of alkanes. With the intention of exploring the tunability of the activation barriers involved in the catalytic pathway of methane hydroxylation, we have employed density functional theory to model metalated porphyrinic MOFs (MOF-525(M)). We find that the heavier congeners down a particular group have high exothermic oxo-formation enthalpies ΔHO and hence are associated with low N2O activation barriers. Independent analyses of activation barriers and structure-activity relationship leads to the conclusion that MOF-525(Ru) and MOF-525(Ir) can act as an effective catalysts for methane hydroxylation. Hence, ΔHO has been found to act as a guide, in the first place, in choosing the optimum catalyst for methane hydroxylation from a large set of available systems.
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Affiliation(s)
- Anjali Ganai
- Department of Chemistry, Visva-Bharati University, Santiniketan 731235, India
| | - Biswajit Ball
- Department of Chemistry, Visva-Bharati University, Santiniketan 731235, India
| | - Pranab Sarkar
- Department of Chemistry, Visva-Bharati University, Santiniketan 731235, India
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13
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Wang Y, Wang J, Wei J, Wang C, Wang H, Yang X. Catalytic Mechanisms and Active Species of Benzene Hydroxylation Reaction System Based on Fe-Based Enzyme-Mimetic Structure. Catal Letters 2022. [DOI: 10.1007/s10562-022-04238-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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14
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Yang K, Jiang J. Rational Design of Metal-Alkoxide-Functionalized Metal-Organic Frameworks for Synergistic Dual Activation of CH 4 and CO 2 toward Acetic Acid Synthesis. ACS APPLIED MATERIALS & INTERFACES 2022; 14:52979-52992. [PMID: 36380575 DOI: 10.1021/acsami.2c16323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
The concurrent conversion of CH4 and CO2 into acetic acid is an ideal route to migrate the two greenhouse gases and manufacture a high-value-added C2 product with an atom economy of 100% but remains challenging due to the chemical inertness of both gases. By leveraging density functional theory (DFT) calculations, we report herein the computational design of metal-alkoxide-functionalized metal-organic framework (MOF) UiO-67 with well-defined dual sites that can activate CH4 and CO2 cooperatively to boost acetic acid synthesis. The dual sites are distributed on two adjacent functionalized organic linkers originating from the same node and feature a metal-metal distance of about 6-7 Å. Initially, a total of 13 single-site metal-alkoxide-functionalized UiO-67s (including three alkaline earth metals and 10 transition metals) are examined; then, favorable metal-alkoxides are identified and further used to design dual-site metal-alkoxide-functionalized UiO-67s for converting CH4 and CO2 into acetic acid. Detailed mechanistic investigation predicts that the dual-site UiO-67s functionalized with Mn-, Fe-, Co-, Ni-. and Zn-alkoxide are highly promising catalysts for this reaction. Compared to the single-site counterparts, the metal pair-site UiO-67s provide a subtle microenvironment for synergistic dual activation of CH4 and CO2, thus efficiently stabilizing the transition state and substantially reducing the reaction barrier for C-C coupling. The microscopic insights and design strategies in this work might advance the development of efficient MOF-based catalysts with built-in cooperative active sites toward direct acetic acid synthesis from CH4 and CO2.
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Affiliation(s)
- Kuiwei Yang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 117576, Singapore
| | - Jianwen Jiang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 117576, Singapore
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15
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Nandy A, Adamji H, Kastner DW, Vennelakanti V, Nazemi A, Liu M, Kulik HJ. Using Computational Chemistry To Reveal Nature’s Blueprints for Single-Site Catalysis of C–H Activation. ACS Catal 2022. [DOI: 10.1021/acscatal.2c02096] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Aditya Nandy
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Husain Adamji
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - David W. Kastner
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Vyshnavi Vennelakanti
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Azadeh Nazemi
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Mingjie Liu
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Heather J. Kulik
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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16
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Metallated porphyrinic metal−organic frameworks for CO2 conversion to HCOOH: A computational screening and mechanistic study. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112407] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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17
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Nandy A, Duan C, Goffinet C, Kulik HJ. New Strategies for Direct Methane-to-Methanol Conversion from Active Learning Exploration of 16 Million Catalysts. JACS AU 2022; 2:1200-1213. [PMID: 35647589 PMCID: PMC9135396 DOI: 10.1021/jacsau.2c00176] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 04/12/2022] [Accepted: 04/15/2022] [Indexed: 05/03/2023]
Abstract
Despite decades of effort, no earth-abundant homogeneous catalysts have been discovered that can selectively oxidize methane to methanol. We exploit active learning to simultaneously optimize methane activation and methanol release calculated with machine learning-accelerated density functional theory in a space of 16 M candidate catalysts including novel macrocycles. By constructing macrocycles from fragments inspired by synthesized compounds, we ensure synthetic realism in our computational search. Our large-scale search reveals that low-spin Fe(II) compounds paired with strong-field (e.g., P or S-coordinating) ligands have among the best energetic tradeoffs between hydrogen atom transfer (HAT) and methanol release. This observation contrasts with prior efforts that have focused on high-spin Fe(II) with weak-field ligands. By decoupling equatorial and axial ligand effects, we determine that negatively charged axial ligands are critical for more rapid release of methanol and that higher-valency metals [i.e., M(III) vs M(II)] are likely to be rate-limited by slow methanol release. With full characterization of barrier heights, we confirm that optimizing for HAT does not lead to large oxo formation barriers. Energetic span analysis reveals designs for an intermediate-spin Mn(II) catalyst and a low-spin Fe(II) catalyst that are predicted to have good turnover frequencies. Our active learning approach to optimize two distinct reaction energies with efficient global optimization is expected to be beneficial for the search of large catalyst spaces where no prior designs have been identified and where linear scaling relationships between reaction energies or barriers may be limited or unknown.
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Affiliation(s)
- Aditya Nandy
- Department
of Chemical Engineering, Massachusetts Institute
of Technology, Cambridge, Massachusetts 02139, United States
- Department
of Chemistry, Massachusetts Institute of
Technology, Cambridge, Massachusetts 02139, United States
| | - Chenru Duan
- Department
of Chemical Engineering, Massachusetts Institute
of Technology, Cambridge, Massachusetts 02139, United States
- Department
of Chemistry, Massachusetts Institute of
Technology, Cambridge, Massachusetts 02139, United States
| | - Conrad Goffinet
- Department
of Chemical Engineering, Massachusetts Institute
of Technology, Cambridge, Massachusetts 02139, United States
| | - Heather J. Kulik
- Department
of Chemical Engineering, Massachusetts Institute
of Technology, Cambridge, Massachusetts 02139, United States
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18
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Rosen AS, Notestein JM, Snurr RQ. Exploring mechanistic routes for light alkane oxidation with an iron-triazolate metal-organic framework. Phys Chem Chem Phys 2022; 24:8129-8141. [PMID: 35332353 DOI: 10.1039/d2cp00963c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this work, we computationally explore the formation and subsequent reactivity of various iron-oxo species in the iron-triazolate framework Fe2(μ-OH)2(bbta) (H2bbta = 1H,5H-benzo(1,2-d:4,5-d')bistriazole) for the catalytic activation of strong C-H bonds. With the direct conversion of methane to methanol as the probe reaction of interest, we use density functional theory (DFT) calculations to evaluate multiple mechanistic pathways in the presence of either N2O or H2O2 oxidants. These calculations reveal that a wide range of transition metal-oxo sites - both terminal and bridging - are plausible in this family of metal-organic frameworks, making it a unique platform for comparing the electronic structure and reactivity of different proposed active site motifs. Based on the DFT calculations, we predict that Fe2(μ-OH)2(bbta) would exhibit a relatively low barrier for N2O activation and energetically favorable formation of an [Fe(O)]2+ species that is capable of oxidizing C-H bonds. In contrast, the use of H2O2 as the oxidant is predicted to yield an assortment of bridging iron-oxo sites that are less reactive. We also find that abstracting oxo ligands can exhibit a complex mixture of both positive and negative spin density, which may have broader implications for relating the degree of radical character to catalytic activity. In general, we consider the coordinatively unsaturated iron sites to be promising for oxidation catalysis, and we provide several recommendations on how to further tune the catalytic properties of this family of metal-triazolate frameworks.
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Affiliation(s)
- Andrew S Rosen
- Department of Chemical and Biological Engineering, Northwestern University, 2145 Sheridan Rd., Evanston, IL 60208, USA.
| | - Justin M Notestein
- Department of Chemical and Biological Engineering, Northwestern University, 2145 Sheridan Rd., Evanston, IL 60208, USA.
| | - Randall Q Snurr
- Department of Chemical and Biological Engineering, Northwestern University, 2145 Sheridan Rd., Evanston, IL 60208, USA.
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19
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Sur A, Jernigan NB, Powers DC. Kinetic Probes of the Origin of Activity in MOF-Based C–H Oxidation Catalysis. ACS Catal 2022. [DOI: 10.1021/acscatal.1c05415] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Aishanee Sur
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
| | - Nicholas B. Jernigan
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
| | - David C. Powers
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
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20
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Vitillo JG, Cramer CJ, Gagliardi L. Multireference Methods are Realistic and Useful Tools for Modeling Catalysis. Isr J Chem 2022. [DOI: 10.1002/ijch.202100136] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Jenny G. Vitillo
- Department of Science and High Technology and INSTM Università degli Studi dell'Insubria Via Valleggio 9 I-22100 Como Italy
| | - Christopher J. Cramer
- Underwriters Laboratories Inc. 333 Pfingsten Road Northbrook Illinois 60602 United States
| | - Laura Gagliardi
- Department of Chemistry Pritzker School of Molecular Engineering James Franck Institute University of Chicago Chicago Illinois 60637 United States
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21
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Wang J, Hou KP, Wen Y, Liu H, Wang H, Chakarawet K, Gong M, Yang X. Interlayer Structure Manipulation of Iron Oxychloride by Potassium Cation Intercalation to Steer H 2O 2 Activation Pathway. J Am Chem Soc 2022; 144:4294-4299. [PMID: 35119845 DOI: 10.1021/jacs.1c12398] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Structural regulation of the active centers is often pivotal in controlling the catalytic functions, especially in iron-based oxidation systems. Here, we discovered a significantly altered catalytic oxidation pathway via a simple cation intercalation into a layered iron oxychloride (FeOCl) scaffold. Upon intercalation of FeOCl with potassium iodide (KI), a new stable phase of K+-intercalated FeOCl (K-FeOCl) was formed with slided layers, distorted coordination, and formed high-spin Fe(II) species compared to the pristine FeOCl precursor. This structural manipulation steers the catalytic H2O2 activation from a traditional Fenton-like pathway on FeOCl to a nonradical ferryl (Fe(IV)═O) pathway. Consequently, the K-FeOCl catalyst can efficiently remove various organic pollutants with almost 2 orders of magnitude faster reaction kinetics than other Fe-based materials via an oxidative coupling or polymerization pathway. A reaction-filtration coupled process based on K-FeOCl was finally demonstrated and could potentially reduce the energy consumption by almost 50%, holding great promise in sustainable pollutant removal technologies.
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Affiliation(s)
- Jinling Wang
- National Engineering Laboratory for Industrial Wastewater Treatment, East China University of Science and Technology, Shanghai 200237, China.,State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Kai-Peng Hou
- Department of Chemistry, University of California, Berkeley, Berkeley, California 94720-1716, United States
| | - Yuzhen Wen
- National Engineering Laboratory for Industrial Wastewater Treatment, East China University of Science and Technology, Shanghai 200237, China
| | - Honglai Liu
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Hualin Wang
- National Engineering Laboratory for Industrial Wastewater Treatment, East China University of Science and Technology, Shanghai 200237, China
| | - Khetpakorn Chakarawet
- Department of Chemistry, University of California, Berkeley, Berkeley, California 94720-1716, United States
| | - Ming Gong
- Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200438, China
| | - Xuejing Yang
- National Engineering Laboratory for Industrial Wastewater Treatment, East China University of Science and Technology, Shanghai 200237, China.,State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
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22
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Hall JN, Li M, Bollini P. Light alkane oxidation over well-defined active sites in metal–organic framework materials. Catal Sci Technol 2022. [DOI: 10.1039/d1cy01876k] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
We review structure–catalytic property relationships for MOF materials used in the direct oxidation of light alkanes, focusing specifically on the elucidation of active site structures and probes for reaction mechanisms.
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Affiliation(s)
- Jacklyn N. Hall
- William A. Brookshire Department of Chemical and Biomolecular Engineering, University of Houston, Houston, TX 77204, USA
| | - Mengying Li
- William A. Brookshire Department of Chemical and Biomolecular Engineering, University of Houston, Houston, TX 77204, USA
| | - Praveen Bollini
- William A. Brookshire Department of Chemical and Biomolecular Engineering, University of Houston, Houston, TX 77204, USA
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23
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Saiz F, Bernasconi L. Catalytic properties of the ferryl ion in the solid state: a computational review. Catal Sci Technol 2022. [DOI: 10.1039/d2cy00200k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This review summarises the last findings in the emerging field of heterogeneous catalytic oxidation of light alkanes by ferryl species supported on solid-state systems such as the conversion of methane into methanol by FeO-MOF74.
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Affiliation(s)
- Fernan Saiz
- ALBA Synchrotron, Carrer de la Llum 2-26, Cerdanyola del Valles 08290, Spain
| | - Leonardo Bernasconi
- Center for Research Computing and Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260, USA
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24
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Kumar R, Sundararajan M, Rajaraman G. A six-coordinate high-spin Fe IVO species of cucurbit[5]uril: a highly potent catalyst for C-H hydroxylation of methane, if synthesised. Chem Commun (Camb) 2021; 57:13760-13763. [PMID: 34854853 DOI: 10.1039/d1cc06391j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
DFT and ab initio DLPNO-CCSD(T) calculations predict a stable S = 2 six-coordinate FeIVO species with cucurbit[5]uril (CB[5]) as a ligand ([(CB[5])FeIVO(H2O)]2+(1)). The strong oxidising capability of 1 far exceeds even that of metalloenzymes such as sMMOs in activating inert substrates such as methane, setting the stage for a new generation of biomimetic catalysts.
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Affiliation(s)
- Ravi Kumar
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076, India.
| | - Mahesh Sundararajan
- Theoretical Chemistry Section, Chemistry Division, Bhabha Atomic Research Centre, Mumbai-400085, India.
| | - Gopalan Rajaraman
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076, India.
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25
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Modulating the catalytic activity of metal-organic frameworks for CO oxidation with N2O through an oriented external electric field. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2021.111970] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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26
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Hall JN, Bollini P. Role of metal identity and speciation in the
low‐temperature
oxidation of methane over
tri‐metal
oxo clusters. AIChE J 2021. [DOI: 10.1002/aic.17496] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jacklyn N. Hall
- William A. Brookshire Department of Chemical & Biomolecular Engineering University of Houston Houston Texas USA
| | - Praveen Bollini
- William A. Brookshire Department of Chemical & Biomolecular Engineering University of Houston Houston Texas USA
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27
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Berger MB, Walker AR, Vázquez-Montelongo EA, Cisneros GA. Computational investigations of selected enzymes from two iron and α-ketoglutarate-dependent families. Phys Chem Chem Phys 2021; 23:22227-22240. [PMID: 34586107 PMCID: PMC8516722 DOI: 10.1039/d1cp03800a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
DNA alkylation is used as the key epigenetic mark in eukaryotes, however, most alkylation in DNA can result in deleterious effects. Therefore, this process needs to be tightly regulated. The enzymes of the AlkB and Ten-Eleven Translocation (TET) families are members of the Fe and alpha-ketoglutarate-dependent superfamily of enzymes that are tasked with dealkylating DNA and RNA in cells. Members of these families span all species and are an integral part of transcriptional regulation. While both families catalyze oxidative dealkylation of various bases, each has specific preference for alkylated base type as well as distinct catalytic mechanisms. This perspective aims to provide an overview of computational work carried out to investigate several members of these enzyme families including AlkB, ALKB Homolog 2, ALKB Homolog 3 and Ten-Eleven Translocate 2. Insights into structural details, mutagenesis studies, reaction path analysis, electronic structure features in the active site, and substrate preferences are presented and discussed.
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Affiliation(s)
- Madison B Berger
- Department of Chemistry, University of North Texas, Denton, Texas, 76201, USA.
| | - Alice R Walker
- Department of Chemistry, Wayne State University, Detroit, Michigan, 48202, USA
| | | | - G Andrés Cisneros
- Department of Chemistry, University of North Texas, Denton, Texas, 76201, USA.
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28
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Simons MC, Prinslow SD, Babucci M, Hoffman AS, Hong J, Vitillo JG, Bare SR, Gates BC, Lu CC, Gagliardi L, Bhan A. Beyond Radical Rebound: Methane Oxidation to Methanol Catalyzed by Iron Species in Metal-Organic Framework Nodes. J Am Chem Soc 2021; 143:12165-12174. [PMID: 34314584 DOI: 10.1021/jacs.1c04766] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Recent work has exploited the ability of metal-organic frameworks (MOFs) to isolate Fe sites that mimic the structures of sites in enzymes that catalyze selective oxidations at low temperatures, opening new pathways for the valorization of underutilized feedstocks such as methane. Questions remain as to whether the radical-rebound mechanism commonly invoked in enzymatic and homogeneous systems also applies in these rigid-framework materials, in which resisting the overoxidation of desired products is a major challenge. We demonstrate that MOFs bearing Fe(II) sites within Fe3-μ3-oxo nodes active for conversion of CH4 + N2O mixtures (368-408 K) require steps beyond the radical-rebound mechanism to protect the desired CH3OH product. Infrared spectra and density functional theory show that CH3OH(g) is stabilized as Fe(III)-OCH3 groups on the MOF via hydrogen atom transfer with Fe(III)-OH groups, eliminating water. Consequently, upon addition of a protonic zeolite in inter- and intrapellet mixtures with the MOF, we observed increases in CH3OH selectivity with increasing ratio and proximity of zeolitic H+ to MOF-based Fe(II) sites, as methanol is protected within the zeolite. We infer from the data that CH3OH(g) is formed via the radical-rebound mechanism on Fe(II) sites but that subsequent transport and dehydration steps are required to protect CH3OH(g) from overoxidation. The results demonstrate that the radical-rebound mechanism commonly invoked in this chemistry is insufficient to explain the reactivity of these systems, that the selectivity-controlling steps involve both chemical and physical rate phenomena, as well as offering a strategy to mitigate overoxidation in these and similar systems.
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Affiliation(s)
- Matthew C Simons
- Department of Chemical Engineering and Materials Science, University of Minnesota, 421 Washington Avenue SE, Minneapolis, Minnesota 55455, United States
| | - Steven D Prinslow
- Department of Chemistry, Chemical Theory Center, and Supercomputing Institute, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Melike Babucci
- Department of Chemical Engineering, University of California, Davis, Davis, California 95616, United States
| | - Adam S Hoffman
- SSRL, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Jiyun Hong
- SSRL, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Jenny G Vitillo
- Department of Science and High Technology and INSTM, University of Insubria, 22100 Como, Italy
| | - Simon R Bare
- SSRL, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Bruce C Gates
- Department of Chemical Engineering, University of California, Davis, Davis, California 95616, United States
| | - Connie C Lu
- Department of Chemistry, Chemical Theory Center, and Supercomputing Institute, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Laura Gagliardi
- Department of Chemistry, Pritzker School of Molecular Engineering, The James Franck Institute and Chicago Center for Theoretical Chemistry, The University of Chicago, Chicago, Illinois 60637, United States
| | - Aditya Bhan
- Department of Chemical Engineering and Materials Science, University of Minnesota, 421 Washington Avenue SE, Minneapolis, Minnesota 55455, United States
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29
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Chen G, Liang T, Yoo P, Fadaeerayeni S, Sarnello E, Li T, Liao P, Xiang Y. Catalytic Light Alkanes Conversion through Anaerobic Ammodehydrogenation. ACS Catal 2021. [DOI: 10.1021/acscatal.1c02136] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Genwei Chen
- Dave C. Swalm School of Chemical Engineering, Mississippi State University, Starkville, Mississippi 39762, United States
| | - Tingyu Liang
- Dave C. Swalm School of Chemical Engineering, Mississippi State University, Starkville, Mississippi 39762, United States
| | - Pilsun Yoo
- School of Materials Engineering, Purdue University, West Lafayette, Indiana 47906, United States
| | - Siavash Fadaeerayeni
- Dave C. Swalm School of Chemical Engineering, Mississippi State University, Starkville, Mississippi 39762, United States
| | - Erik Sarnello
- Department of Chemistry and Biochemistry, Northern Illinois University, DeKalb, Illinois 60115, United States
| | - Tao Li
- Department of Chemistry and Biochemistry, Northern Illinois University, DeKalb, Illinois 60115, United States
- X-ray Science Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Peilin Liao
- School of Materials Engineering, Purdue University, West Lafayette, Indiana 47906, United States
| | - Yizhi Xiang
- Dave C. Swalm School of Chemical Engineering, Mississippi State University, Starkville, Mississippi 39762, United States
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30
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Vitillo JG, Gagliardi L. Thermal Treatment Effect on CO and NO Adsorption on Fe(II) and Fe(III) Species in Fe 3O-Based MIL-Type Metal-Organic Frameworks: A Density Functional Theory Study. Inorg Chem 2021; 60:11813-11824. [PMID: 34110149 PMCID: PMC8371607 DOI: 10.1021/acs.inorgchem.1c01044] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
![]()
The properties of
metal–organic frameworks (MOFs) based
on triiron oxo-centered (Fe3O) metal nodes are often related
to the efficiency of the removal of the solvent molecules and the
counteranion chemisorbed on the Fe3O unit by postsynthetic
thermal treatment. Temperature, time, and the reaction environment
play a significant role in modifying key features of the materials,
that is, the number of open metal sites and the reduction of Fe(III)
centers to Fe(II). IR spectroscopy allows the inspection of these
postsynthetic modifications by using carbon monoxide (CO) and nitric
oxide (NO) as probe molecules. However, the reference data sets are
based on spectra recorded for iron zeolites and oxides, whose structures
are different from the Fe3O one. We used density functional
theory to study how the adsorption enthalpy and the vibrational bands
of CO and NO are modified upon dehydration and reduction of Fe3O metal nodes. We obtained a set of theoretical spectra that
can model the modification observed in previously reported experimental
spectra. Several CO and NO bands were previously assigned to heterogeneous
Fe(II) and Fe(III) sites, suggesting a large defectivity of the materials.
On the basis of the calculations, we propose an alternative assignment
of these bands by considering only crystallographic iron sites. These
findings affect the common description of Fe3O-based MOFs
as highly defective materials. We expect these results to be of interest
to the large community of scientists working on Fe(II)- and Fe(III)-based
MOFs and related materials. Thermal treatment
of triiron oxo-centered (Fe3O)-based metal−organic
frameworks is a common postsynthetic
method to determine the material performances in many applications:
we used density functional theory methods to study how the efficacy
of the treatment modifies the energetics and the vibrational bands
of nitric oxide (NO) and carbon monoxide. The obtained data set is
meant to be part of the characterization toolboxes aimed at the assessment
of thermal treatment protocols.
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Affiliation(s)
- Jenny G Vitillo
- Department of Science and High Technology and INSTM, University of Insubria, Via Valleggio 9, 22100 Como, Italy.,Department of Chemistry, Chemical Theory Center, and Supercomputing Institute, University of Minnesota, 207 Pleasant Street S.E., Minneapolis, Minnesota 55455-0431, United States
| | - Laura Gagliardi
- Department of Chemistry, Pritzker School of Molecular Engineering, James Franck Institute, University of Chicago, Chicago, Illinois 60637, United States
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31
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McCarver GA, Rajeshkumar T, Vogiatzis KD. Computational catalysis for metal-organic frameworks: An overview. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.213777] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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32
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Ning J, Truhlar DG. Spin-Orbit Coupling Changes the Identity of the Hyper-Open-Shell Ground State of Ce +, and the Bond Dissociation Energy of CeH + Proves to Be Challenging for Theory. J Chem Theory Comput 2021; 17:1421-1434. [PMID: 33576629 DOI: 10.1021/acs.jctc.0c01124] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Cerium (Ce) plays important roles in catalysis. Its position in the sixth period of the periodic table leads to spin-orbit coupling (SOC) and other open-shell effects that make the quantum mechanical calculation of cerium compounds challenging. In this work, we investigated the low-lying spin states of Ce+ and the bond energy of CeH+, both by multiconfigurational methods, in particular, SA-CASSCF, MC-PDFT, CASPT2, XMS-PDFT, and XMS-CASPT2, and by single-configurational methods, namely, Hartree-Fock theory and unrestricted Kohn-Sham density functional theory with 34 choices of the exchange-correlation functional. We found that only CASPT2, XMS-CASPT2, and SA-CASSCF (among the five multiconfigurational methods) and GAM, HCTH, SOGGA11, and OreLYP (among the 35 single-configuration methods) successfully predict that the SOC-free ground spin state of Ce+ is a doublet state, and CASPT2 and GAM give the most accurate multireference and single-reference calculations, respectively, of the excitation energy of the first SOC-free excited state for Ce+. We calculated that the ground doublet state of Ce+ is an intra-atomic hyper-open-shell state. We calculated the spin-orbit energy (ESO) of Ce+ by the five multiconfigurational methods and found that ESO calculated by CASPT2 is the closest to the experimental value. Taking advantage of the availability of an experimental D0 for CeH+ as a way to provide a unique test of theory, we showed that all the multiconfigurational methods overestimate D0 by at least 246 meV (5.7 kcal/mol), and only three functionals, namely, SOGGA, MN15, and GAM, have an error of D0 that is less than 200 meV (5 kcal/mol).
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Affiliation(s)
- Jiaxin Ning
- Department of Chemistry, Chemical Theory Center, and Minnesota Supercomputing Institute, University of Minnesota, Minneapolis, Minnesota 55455-0431, United States
| | - Donald G Truhlar
- Department of Chemistry, Chemical Theory Center, and Minnesota Supercomputing Institute, University of Minnesota, Minneapolis, Minnesota 55455-0431, United States
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33
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Wang Z, Wang J, Sun Z, Xiang W, Shen C, Rui N, Ding M, Yuan Y, Cui H, Liu CJ. Electron-induced rapid crosslinking in supramolecular metal-peptide assembly and chemically responsive disaggregation for catalytic application. CHINESE JOURNAL OF CATALYSIS 2021. [DOI: 10.1016/s1872-2067(20)63655-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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34
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Momeni MR, Zhang Z, Shakib FA. Deterministic role of structural flexibility on catalytic activity of conductive 2D layered metal-organic frameworks. Chem Commun (Camb) 2021; 57:315-318. [PMID: 33332494 DOI: 10.1039/d0cc07430f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A combined quantum mechanics and classical molecular dynamics approach is used to unravel the effects of structural deformations and heterogeneity on catalytic activity of 2D π-stacked layered metal-organic frameworks. Theory predicts that the flexible nature of these materials creates a complex array of catalytically active sites for oxidative dehydrogenation of propane. Using an ensemble approach and oxygen bond formation energy, as an excellent probe, we investigate the catalytic activity down to the single active site level.
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Affiliation(s)
- Mohammad R Momeni
- Department of Chemistry and Environmental Science, New Jersey Institute of Technology, Newark 07102, NJ, USA.
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35
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Choi C, Yoon S, Jung Y. Shifting the scaling relations of single-atom catalysts for facile methane activation by tuning the coordination number. Chem Sci 2021; 12:3551-3557. [PMID: 34163628 PMCID: PMC8179458 DOI: 10.1039/d0sc05632d] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Accepted: 01/11/2021] [Indexed: 11/21/2022] Open
Abstract
We investigate oxidative methane activation on a wide range of single transition metal atom catalysts embedded on N-doped graphene derivatives using density functional theory calculations. An inverse scaling relationship between *O formation and its hydrogen affinity is observed, consistent with a previous report. However, we find that the latter scaling line can be shifted towards a more reactive region by tuning the coordination number (CN) of the active metal sites. Specifically, we find that lowering the CN plays an important role in increasing the reactivity for methane activation via a radical-like transition state by moving the scaling lines. Thus, in the new design strategy suggested here, different from the conventional efforts focusing mainly on breaking the scaling relations, one maintains the scaling relations but moves them towards more reactive regions by controlling the coordination number of the active sites. With this design principle, we suggest several single atom catalysts with lower C-H activation barriers than some of the most active methane activation catalysts in the literature such as Cu-based zeolites.
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Affiliation(s)
- Changhyeok Choi
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Republic of Korea
| | - Sungho Yoon
- Department of Chemistry, Chung-Ang University Seoul 06974 Republic of Korea
| | - Yousung Jung
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Republic of Korea
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36
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Morales-Vidal J, García-Muelas R, Ortuño MA. Defects as catalytic sites for the oxygen evolution reaction in Earth-abundant MOF-74 revealed by DFT. Catal Sci Technol 2021. [DOI: 10.1039/d0cy02163f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The oxygen evolution reaction (OER) is the bottleneck of hydrogen production via water splitting and understanding electrocatalysts at atomic level becomes paramount to enhance the efficiency of this process.
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Affiliation(s)
- Jordi Morales-Vidal
- Institute of Chemical Research of Catalonia (ICIQ)
- Barcelona Institute of Science and Technology (BIST)
- 43007 Tarragona
- Spain
| | - Rodrigo García-Muelas
- Institute of Chemical Research of Catalonia (ICIQ)
- Barcelona Institute of Science and Technology (BIST)
- 43007 Tarragona
- Spain
| | - Manuel A. Ortuño
- Institute of Chemical Research of Catalonia (ICIQ)
- Barcelona Institute of Science and Technology (BIST)
- 43007 Tarragona
- Spain
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37
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Hong S, Mpourmpakis G. Mechanistic understanding of methane-to-methanol conversion on graphene-stabilized single-atom iron centers. Catal Sci Technol 2021. [DOI: 10.1039/d1cy00826a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
DFT calculations and kinetic modeling elucidate solvent effects and complex mechanisms for the room-temperature methane-to-methanol conversion on an FeN4/graphene catalyst.
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Affiliation(s)
- Sungil Hong
- Department of Chemical Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, USA
| | - Giannis Mpourmpakis
- Department of Chemical Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, USA
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38
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Kim H, Hong CS. MOF-74-type frameworks: tunable pore environment and functionality through metal and ligand modification. CrystEngComm 2021. [DOI: 10.1039/d0ce01870h] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
This highlight demonstrates a comprehensive overview of MOF-74-type frameworks in terms of synthetic approaches and pre- or post-synthetic modification approaches.
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Affiliation(s)
- Hyojin Kim
- Department of Chemistry
- Korea University
- Seoul 02841
- Republic of Korea
| | - Chang Seop Hong
- Department of Chemistry
- Korea University
- Seoul 02841
- Republic of Korea
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39
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Saiz F, Bernasconi L. Unveiling the catalytic potential of the Fe( iv)oxo species for the oxidation of hydrocarbons in the solid state. Catal Sci Technol 2021. [DOI: 10.1039/d1cy00551k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
We have investigated the three steps in the conversion of methane into methanol by Fe(iv)Ooxo species supported in MOF-74. We use ab initio MD and static approximations to predict the reaction barriers using enthalpy ΔH and free energy ΔG.
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Affiliation(s)
- Fernan Saiz
- King Abdullah University of Science and Technology (KAUST)
- Thuwal 23955-6900
- Saudi Arabia
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40
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Vitillo JG, Lu CC, Cramer CJ, Bhan A, Gagliardi L. Influence of First and Second Coordination Environment on Structural Fe(II) Sites in MIL-101 for C–H Bond Activation in Methane. ACS Catal 2020. [DOI: 10.1021/acscatal.0c03906] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Jenny G. Vitillo
- Department of Chemistry, Chemical Theory Center, and Supercomputing Institute, University of Minnesota, 207 Pleasant Street Southeast, Minneapolis, Minnesota 55455-0431, United States
- Department of Science and High Technology and INSTM, Università degli Studi dell’Insubria, Via Valleggio 9, I-22100 Como, Italy
| | - Connie C. Lu
- Department of Chemistry, Chemical Theory Center, and Supercomputing Institute, University of Minnesota, 207 Pleasant Street Southeast, Minneapolis, Minnesota 55455-0431, United States
| | - Christopher J. Cramer
- Department of Chemistry, Chemical Theory Center, and Supercomputing Institute, University of Minnesota, 207 Pleasant Street Southeast, Minneapolis, Minnesota 55455-0431, United States
| | - Aditya Bhan
- Department of Chemical Engineering and Materials Science, University of Minnesota, 421 Washington Avenue Southeast, Minneapolis, Minnesota 55455, United States
| | - Laura Gagliardi
- Department of Chemistry, Pritzker School of Molecular Engineering, James Franck Institute, University of Chicago, Chicago, Illinois 60637, United States
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41
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Nandy A, Kulik HJ. Why Conventional Design Rules for C–H Activation Fail for Open-Shell Transition-Metal Catalysts. ACS Catal 2020. [DOI: 10.1021/acscatal.0c04300] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Aditya Nandy
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Heather J. Kulik
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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42
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Hall JN, Bollini P. Low‐Temperature, Ambient Pressure Oxidation of Methane to Methanol Over Every Tri‐Iron Node in a Metal–Organic Framework Material. Chemistry 2020; 26:16639-16643. [DOI: 10.1002/chem.202003894] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Indexed: 01/15/2023]
Affiliation(s)
- Jacklyn N. Hall
- Chemical & Biomolecular Engineering University of Houston 4722 Calhoun Rd. Houston TX 77004 USA
| | - Praveen Bollini
- Chemical & Biomolecular Engineering University of Houston 4722 Calhoun Rd. Houston TX 77004 USA
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43
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Ansari M, Senthilnathan D, Rajaraman G. Deciphering the origin of million-fold reactivity observed for the open core diiron [HO-Fe III-O-Fe IV[double bond, length as m-dash]O] 2+ species towards C-H bond activation: role of spin-states, spin-coupling, and spin-cooperation. Chem Sci 2020; 11:10669-10687. [PMID: 33209248 PMCID: PMC7654192 DOI: 10.1039/d0sc02624g] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Accepted: 06/16/2020] [Indexed: 01/26/2023] Open
Abstract
High-valent metal-oxo species have been characterised as key intermediates in both heme and non-heme enzymes that are found to perform efficient aliphatic hydroxylation, epoxidation, halogenation, and dehydrogenation reactions. Several biomimetic model complexes have been synthesised over the years to mimic both the structure and function of metalloenzymes. The diamond-core [Fe2(μ-O)2] is one of the celebrated models in this context as this has been proposed as the catalytically active species in soluble methane monooxygenase enzymes (sMMO), which perform the challenging chemical conversion of methane to methanol at ease. In this context, a report of open core [HO(L)FeIII-O-FeIV(O)(L)]2+ (1) gains attention as this activates C-H bonds a million-fold faster compared to the diamond-core structure and has the dual catalytic ability to perform hydroxylation as well as desaturation with organic substrates. In this study, we have employed density functional methods to probe the origin of the very high reactivity observed for this complex and also to shed light on how this complex performs efficient hydroxylation and desaturation of alkanes. By modelling fifteen possible spin-states for 1 that could potentially participate in the reaction mechanism, our calculations reveal a doublet ground state for 1 arising from antiferromagnetic coupling between the quartet FeIV centre and the sextet FeIII centre, which regulates the reactivity of this species. The unusual stabilisation of the high-spin ground state for FeIV[double bond, length as m-dash]O is due to the strong overlap of with the orbital, reducing the antibonding interactions via spin-cooperation. The electronic structure features computed for 1 are consistent with experiments offering confidence in the methodology chosen. Further, we have probed various mechanistic pathways for the C-H bond activation as well as -OH rebound/desaturation of alkanes. An extremely small barrier height computed for the first hydrogen atom abstraction by the terminal FeIV[double bond, length as m-dash]O unit was found to be responsible for the million-fold activation observed in the experiments. The barrier height computed for -OH rebound by the FeIII-OH unit is also smaller suggesting a facile hydroxylation of organic substrates by 1. A strong spin-cooperation between the two iron centres also reduces the barrier for second hydrogen atom abstraction, thus making the desaturation pathway competitive. Both the spin-state as well as spin-coupling between the two metal centres play a crucial role in dictating the reactivity for species 1. By exploring various mechanistic pathways, our study unveils the fact that the bridged μ-oxo group is a poor electrophile for both C-H activation as well for -OH rebound. As more and more evidence is gathered in recent years for the open core geometry of sMMO enzymes, the idea of enhancing the reactivity via an open-core motif has far-reaching consequences.
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Affiliation(s)
- Mursaleem Ansari
- Department of Chemistry , Indian Institute of Technology Bombay , Mumbai 400076 , India .
| | - Dhurairajan Senthilnathan
- Center for Computational Chemistry , CRD , PRIST University , Vallam , Thanjavur , Tamilnadu 613403 , India
| | - Gopalan Rajaraman
- Department of Chemistry , Indian Institute of Technology Bombay , Mumbai 400076 , India .
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44
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Han X, Hong Y, Ma Y, Lu W, Li J, Lin L, Sheveleva AM, Tuna F, McInnes EJL, Dejoie C, Sun J, Yang S, Schröder M. Adsorption of Nitrogen Dioxide in a Redox-Active Vanadium Metal-Organic Framework Material. J Am Chem Soc 2020; 142:15235-15239. [PMID: 32786806 PMCID: PMC7496733 DOI: 10.1021/jacs.0c06414] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Nitrogen dioxide (NO2) is a toxic air pollutant, and efficient abatement technologies are important to mitigate the many associated health and environmental problems. Here, we report the reactive adsorption of NO2 in a redox-active metal-organic framework (MOF), MFM-300(V). Adsorption of NO2 induces the oxidation of V(III) to V(IV) centers in MFM-300(V), and this is accompanied by the reduction of adsorbed NO2 to NO and the release of water via deprotonation of the framework hydroxyl groups, as confirmed by synchrotron X-ray diffraction and various experimental techniques. The efficient packing of {NO2·N2O4}∞ chains in the pores of MFM-300(VIV) results in a high isothermal NO2 uptake of 13.0 mmol g-1 at 298 K and 1.0 bar and is retained for multiple adsorption-desorption cycles. This work will inspire the design of redox-active sorbents that exhibit reductive adsorption of NO2 for the elimination of air pollutants.
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Affiliation(s)
- Xue Han
- Department of Chemistry, University of Manchester, Manchester, M13 9PL, U.K
| | - Yuexian Hong
- College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
| | - Yujie Ma
- Department of Chemistry, University of Manchester, Manchester, M13 9PL, U.K
| | - Wanpeng Lu
- Department of Chemistry, University of Manchester, Manchester, M13 9PL, U.K
| | - Jiangnan Li
- Department of Chemistry, University of Manchester, Manchester, M13 9PL, U.K
| | - Longfei Lin
- Department of Chemistry, University of Manchester, Manchester, M13 9PL, U.K
| | - Alena M Sheveleva
- Department of Chemistry, University of Manchester, Manchester, M13 9PL, U.K
| | - Floriana Tuna
- Department of Chemistry, University of Manchester, Manchester, M13 9PL, U.K.,Photon Science Institute, University of Manchester, Manchester, M13 9PL, U.K
| | - Eric J L McInnes
- Department of Chemistry, University of Manchester, Manchester, M13 9PL, U.K
| | - Catherine Dejoie
- European Synchrotron Radiation Facility (ESRF), Grenoble, 38043, France
| | - Junliang Sun
- College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
| | - Sihai Yang
- Department of Chemistry, University of Manchester, Manchester, M13 9PL, U.K
| | - Martin Schröder
- Department of Chemistry, University of Manchester, Manchester, M13 9PL, U.K
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45
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Shteinman AA. Bioinspired Oxidation of Methane: From Academic Models of Methane Monooxygenases to Direct Conversion of Methane to Methanol. KINETICS AND CATALYSIS 2020. [DOI: 10.1134/s0023158420030180] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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46
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Paluka V, Maihom T, Probst M, Limtrakul J. Dehydrogenation of ethanol to acetaldehyde with nitrous oxide over the metal-organic framework NU-1000: a density functional theory study. Phys Chem Chem Phys 2020; 22:13622-13628. [PMID: 32519733 DOI: 10.1039/d0cp01451f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The conversion of ethanol to more valuable hydrocarbon compounds receives great attention in chemical industries because it could diminish the dependency on petroleum as raw material. We investigate the catalytic performance of Fe-supported MOF NU-1000 for the dehydrogenation of ethanol to acetaldehyde with nitrous oxide (N2O) by deriving the relevant reaction profiles with density functional theory calculations. In the proposed mechanism, the activation barrier of the rate-determining step is almost four times lower in the presence of N2O than without it. The supported NU-1000 framework plays also important role since it facilitates electron transfers and stabilizes all species along the reaction coordinate. When considering the catalytic activity of tetravalent metal centers (Zr, Hf and Ti) substituted into NU-1000 it is found that their activity decreases in the order Hf ≥ Zr > Ti, based on activation energies and turnover frequencies (TOF). Concerning MOF linkers, we show that the catalytic activity is not further improved by functionalizing NU-1000 with either electron-donating or electron-withdrawing organic groups.
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Affiliation(s)
- Veerachart Paluka
- Department of Chemistry, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand and Research Network NANOTEC-Kasetsart on NanoCatalysts and NanoMaterials for Sustainable Energy and Environment: RNN-CMSEE and Center for Advanced Studies in Nanotechnology for Chemical, Food and Agricultural Industries, Kasetsart University, Bangkok 10900, Thailand
| | - Thana Maihom
- Department of Chemistry, Faculty of Liberal Arts and Science, Kasetsart University, Kamphaeng Saen Campus, Nakhon Pathom 73140, Thailand. and Department of Materials Science and Engineering, Vidyasirimedhi Institute of Science and Technology, Rayong 21210, Thailand
| | - Michael Probst
- Institute of Ion Physics and Applied Physics, University of Innsbruck, 6020 Innsbruck, Austria
| | - Jumras Limtrakul
- Department of Materials Science and Engineering, Vidyasirimedhi Institute of Science and Technology, Rayong 21210, Thailand
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47
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Suh BL, Kim J. Reverse shape selectivity of hexane isomer in ligand inserted MOF-74. RSC Adv 2020; 10:22601-22605. [PMID: 35514558 PMCID: PMC9054571 DOI: 10.1039/d0ra03377d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Accepted: 06/06/2020] [Indexed: 11/29/2022] Open
Abstract
Separation of linear, mono-branched, and di-branched isomers is critically important in the petrochemical industry. In this computational study, we demonstrate that the ligand inserted Mg-MOF-74 structure leads to a reverse selectivity effect (i.e. phenomenon that preferentially allows larger species molecules to permeate in a gas mixture) of hexane isomers in the resulting material. Molecular dynamics simulations suggest that strong confinement of the di-branched hydrocarbons in the small pores lead to reverse selectivity. Over a magnitude difference in diffusivity between linear alkanes and their di-branched isomers was observed, clearly showing the steric effects imposed by the pore structure.
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Affiliation(s)
- Bong Lim Suh
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST) 291 Daehak-ro, Yuseong-gu Daejeon 34141 Republic of Korea
- Materials and Life Science Research Division, Korea Institute of Science and Technology Seoul 02792 Republic of Korea
| | - Jihan Kim
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST) 291 Daehak-ro, Yuseong-gu Daejeon 34141 Republic of Korea
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48
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Rosen AS, Notestein JM, Snurr RQ. High‐Valent Metal–Oxo Species at the Nodes of Metal–Triazolate Frameworks: The Effects of Ligand Exchange and Two‐State Reactivity for C−H Bond Activation. Angew Chem Int Ed Engl 2020; 59:19494-19502. [DOI: 10.1002/anie.202004458] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Indexed: 01/18/2023]
Affiliation(s)
- Andrew S. Rosen
- Department of Chemical and Biological Engineering Northwestern University 2145 Sheridan Rd. Evanston IL 60208 USA
| | - Justin M. Notestein
- Department of Chemical and Biological Engineering Northwestern University 2145 Sheridan Rd. Evanston IL 60208 USA
| | - Randall Q. Snurr
- Department of Chemical and Biological Engineering Northwestern University 2145 Sheridan Rd. Evanston IL 60208 USA
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49
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Rosen AS, Notestein JM, Snurr RQ. High‐Valent Metal–Oxo Species at the Nodes of Metal–Triazolate Frameworks: The Effects of Ligand Exchange and Two‐State Reactivity for C−H Bond Activation. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202004458] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Andrew S. Rosen
- Department of Chemical and Biological Engineering Northwestern University 2145 Sheridan Rd. Evanston IL 60208 USA
| | - Justin M. Notestein
- Department of Chemical and Biological Engineering Northwestern University 2145 Sheridan Rd. Evanston IL 60208 USA
| | - Randall Q. Snurr
- Department of Chemical and Biological Engineering Northwestern University 2145 Sheridan Rd. Evanston IL 60208 USA
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50
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Wei YS, Zhang M, Zou R, Xu Q. Metal-Organic Framework-Based Catalysts with Single Metal Sites. Chem Rev 2020; 120:12089-12174. [PMID: 32356657 DOI: 10.1021/acs.chemrev.9b00757] [Citation(s) in RCA: 425] [Impact Index Per Article: 106.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Metal-organic frameworks (MOFs) are a class of distinctive porous crystalline materials constructed by metal ions/clusters and organic linkers. Owing to their structural diversity, functional adjustability, and high surface area, different types of MOF-based single metal sites are well exploited, including coordinately unsaturated metal sites from metal nodes and metallolinkers, as well as active metal species immobilized to MOFs. Furthermore, controllable thermal transformation of MOFs can upgrade them to nanomaterials functionalized with active single-atom catalysts (SACs). These unique features of MOFs and their derivatives enable them to serve as a highly versatile platform for catalysis, which has actually been becoming a rapidly developing interdisciplinary research area. In this review, we overview the recent developments of catalysis at single metal sites in MOF-based materials with emphasis on their structures and applications for thermocatalysis, electrocatalysis, and photocatalysis. We also compare the results and summarize the major insights gained from the works in this review, providing the challenges and prospects in this emerging field.
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Affiliation(s)
- Yong-Sheng Wei
- AIST-Kyoto University Chemical Energy Materials Open Innovation Laboratory (ChEM-OIL), National Institute of Advanced Industrial Science and Technology (AIST), Sakyo-ku, Kyoto 606-8501, Japan
| | - Mei Zhang
- AIST-Kyoto University Chemical Energy Materials Open Innovation Laboratory (ChEM-OIL), National Institute of Advanced Industrial Science and Technology (AIST), Sakyo-ku, Kyoto 606-8501, Japan
| | - Ruqiang Zou
- Beijing Key Laboratory for Theory and Technology of Advanced Battery Materials, Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871, PR China
| | - Qiang Xu
- AIST-Kyoto University Chemical Energy Materials Open Innovation Laboratory (ChEM-OIL), National Institute of Advanced Industrial Science and Technology (AIST), Sakyo-ku, Kyoto 606-8501, Japan.,School of Chemistry and Chemical Engineering, and Institute for Innovative Materials and Energy, Yangzhou University, Yangzhou 225009, China
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