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Fu Y, Lu K, Wang Y, Si Y, Shi J, Li N, Zhou Z, Liu M. Hemilabile single-atom catalysts facilitating photothermal synergetic catalysis. Sci Bull (Beijing) 2024; 69:1833-1838. [PMID: 38734588 DOI: 10.1016/j.scib.2024.04.041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/13/2024]
Affiliation(s)
- Yiwei Fu
- International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow, Xi'an Jiaotong University, Xi'an 710049, China
| | - Kejian Lu
- International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow, Xi'an Jiaotong University, Xi'an 710049, China
| | - Yi Wang
- International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow, Xi'an Jiaotong University, Xi'an 710049, China
| | - Yitao Si
- International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow, Xi'an Jiaotong University, Xi'an 710049, China; School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China.
| | - Jinwen Shi
- International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow, Xi'an Jiaotong University, Xi'an 710049, China
| | - Naixu Li
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China.
| | - Zhifu Zhou
- International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow, Xi'an Jiaotong University, Xi'an 710049, China
| | - Maochang Liu
- International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow, Xi'an Jiaotong University, Xi'an 710049, China; Suzhou Academy of Xi'an Jiaotong University, Suzhou 215123, China.
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Dutta S, Mukherjee S, Javan Nikkhah S, Qazvini OT, Dam GK, Vandichel M, Mandal TN, Ghosh SK. Hemilabile Binding of Acetylene in an Amide-Rich Ultramicroporous MOF Enables Strong Acetylene Selectivity. Inorg Chem 2024. [PMID: 38913858 DOI: 10.1021/acs.inorgchem.4c01933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/26/2024]
Abstract
Thanks to a hemilabile amide-based binding site, a previously unreported amide-functionalized metal-organic framework (MOF) exhibits high acetylene affinity over ethylene, methane, and carbon dioxide, three-in-one.
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Affiliation(s)
- Subhajit Dutta
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Dr. Homi Bhabha Road, Pashan, Pune 411008, India
| | - Soumya Mukherjee
- Department of Chemical Sciences, Bernal Institute, University of Limerick, Castletroy, Limerick V94 T9PX, Ireland
| | - Sousa Javan Nikkhah
- Department of Chemical Sciences, Bernal Institute, University of Limerick, Castletroy, Limerick V94 T9PX, Ireland
| | - Omid T Qazvini
- Svante Inc., 8800 Glenlyon Pkwy., Burnaby, BC V5J 5K3, Canada
| | - Gourab K Dam
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Dr. Homi Bhabha Road, Pashan, Pune 411008, India
| | - Matthias Vandichel
- Department of Chemical Sciences, Bernal Institute, University of Limerick, Castletroy, Limerick V94 T9PX, Ireland
| | - Tarak Nath Mandal
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Dr. Homi Bhabha Road, Pashan, Pune 411008, India
- Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu 603203, India
| | - Sujit K Ghosh
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Dr. Homi Bhabha Road, Pashan, Pune 411008, India
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Meng Y, Ying L, Tao Y, Ma L, Li B, Xing Y, Liu X, Ma Y, Wen X. DFT Study on Effect of Metal Type and Coordination Environment on CO 2 ECR to C 1 Products over M-N-C Catalysts. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:10663-10675. [PMID: 38718299 DOI: 10.1021/acs.langmuir.4c00590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2024]
Abstract
Electrocatalytic reduction (ECR) of CO2 to chemical products is an important carbon emission reduction method. This work uses DFT to study the stability of N-doped graphene-supported four metal single-atom catalysts (M-N-C) and the effects of the coordination environment and metal centers on the selectivity of CO2 ECR to C1 products. The results show that Fe, Co, Ni, and Cu have good stability. The coordination environment has a significant modulating effect on product selectivity, and the change of the number of ligand nitrogen atoms will affect the size of the potential-limiting step of each product. When the number of nitrogen ligands is the same, the different metal centers of the M-N-C catalyst have a significant effect on the selectivity of different products. In addition, the introduction of nitrogen atom ligands can adjust the electronic structure of the graphene-supported metal center, increase the d-band center of most metals, and improve the reaction activity.
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Affiliation(s)
- Yu Meng
- Shaanxi Key Laboratory of Low Metamorphic Coal Clean Utilization, School of Chemistry and Chemical Engineering, Yulin University, Yulin 719000, P. R. China
| | - Linbin Ying
- Shaanxi Key Laboratory of Low Metamorphic Coal Clean Utilization, School of Chemistry and Chemical Engineering, Yulin University, Yulin 719000, P. R. China
| | - Yani Tao
- Shaanxi Key Laboratory of Low Metamorphic Coal Clean Utilization, School of Chemistry and Chemical Engineering, Yulin University, Yulin 719000, P. R. China
| | - Liang Ma
- Shaanxi Key Laboratory of Low Metamorphic Coal Clean Utilization, School of Chemistry and Chemical Engineering, Yulin University, Yulin 719000, P. R. China
| | - Baoning Li
- Shaanxi Key Laboratory of Low Metamorphic Coal Clean Utilization, School of Chemistry and Chemical Engineering, Yulin University, Yulin 719000, P. R. China
| | - Yan Xing
- Shaanxi Key Laboratory of Low Metamorphic Coal Clean Utilization, School of Chemistry and Chemical Engineering, Yulin University, Yulin 719000, P. R. China
| | - Xiaoyan Liu
- Shaanxi Key Laboratory of Low Metamorphic Coal Clean Utilization, School of Chemistry and Chemical Engineering, Yulin University, Yulin 719000, P. R. China
| | - Yajun Ma
- Shaanxi Key Laboratory of Low Metamorphic Coal Clean Utilization, School of Chemistry and Chemical Engineering, Yulin University, Yulin 719000, P. R. China
| | - Xiaodong Wen
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, P. R. China
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Liu L, Chen T, Chen Z. Understanding the Dynamic Aggregation in Single-Atom Catalysis. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2308046. [PMID: 38287886 PMCID: PMC10987127 DOI: 10.1002/advs.202308046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 11/22/2023] [Indexed: 01/31/2024]
Abstract
The dynamic response of single-atom catalysts to a reactive environment is an increasingly significant topic for understanding the reaction mechanism at the molecular level. In particular, single atoms may experience dynamic aggregation into clusters or nanoparticles driven by thermodynamic or kinetic factors. Herein, the inherent mechanistic nuances that determine the dynamic profile during the reaction will be uncovered, including the intrinsic stability and site-migration barrier of single atoms, external stimuli (temperature, voltage, and adsorbates), and the influence of catalyst support. Such dynamic aggregation can be beneficial or deleterious on the catalytic performance depending on the optimal initial state. Those examples will be highlighted where in situ formed clusters, rather than single atoms, serve as catalytically active sites for improved catalytic performance. This is followed by the introduction of operando techniques to understand the structural evolution. Finally, the emerging strategies via confinement and defect-engineering to regulate dynamic aggregation will be briefly discussed.
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Affiliation(s)
- Laihao Liu
- School of Science and EngineeringThe Chinese University of Hong KongShenzhenGuangdong518172China
| | - Tiankai Chen
- School of Science and EngineeringThe Chinese University of Hong KongShenzhenGuangdong518172China
| | - Zhongxin Chen
- School of Science and EngineeringThe Chinese University of Hong KongShenzhenGuangdong518172China
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Xiao Z, Do H, Yusuf A, Jia H, Ma H, Jiang S, Li J, Sun Y, Wang C, Ren Y, Chen GZ, He J. Facile synthesis of multi-layer Co(OH) 2/CeO 2-g-C 3N 4 ternary synergistic heterostructure for efficient photocatalytic oxidation of NO under visible light. JOURNAL OF HAZARDOUS MATERIALS 2024; 462:132744. [PMID: 37865079 DOI: 10.1016/j.jhazmat.2023.132744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Revised: 09/23/2023] [Accepted: 10/07/2023] [Indexed: 10/23/2023]
Abstract
In this work, we report a one-step synthesis of ternary Z-scheme Co(OH)2/CeO2-g-C3N4 (CoCe-CN) heterostructure via hydrothermal method. Owing to the modification of Co(OH)2 and CeO2, the existence of Co(OH)2 as an electron acceptor-donor center between CeO2 and g-C3N4 accelerates the electron transfer and provides extra OH- reaction pathway for photocatalytic oxidation of NO. As a result, 50CoCe-CN (Co and Ce accounting for 25% mass ratio separately) achieved a 53.5% conversion efficiency of NO at 600 ppb concentration, which is 1.82 times that of g-C3N4 under visible light. The results of the DFT analysis and element distribution of cobalt and ceria provide convincing evidence supporting the existence of a novel multi-layer structure in the CoCe-CN photocatalyst. This structure involves the loading of CeO2 and Co(OH)2 on the g-C3N4 surface, and Co(OH)2 as a co-catalyst introduced between CeO2 and g-C3N4 realizes the synergy between CeO2 and Co(OH)2 which further improve the photocatalytic properties. The higher photocatalytic efficiencies observed in the CoCe-CN photocatalysts compared to those containing only cobalt (Co-CN) or ceria (Ce-CN) provide further evidence of the synergistic effect of these two elements. This work demonstrates a more efficient and effective ternary photocatalytic system, with greater practical potential for photocatalytic oxidation of NO.
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Affiliation(s)
- Zhiyu Xiao
- Department of Chemical and Environmental Engineering, University of Nottingham Ningbo China, Ningbo, PR China
| | - Hainam Do
- Department of Chemical and Environmental Engineering, University of Nottingham Ningbo China, Ningbo, PR China
| | - Abubakar Yusuf
- Department of Chemical and Environmental Engineering, University of Nottingham Ningbo China, Ningbo, PR China.
| | - Hongpeng Jia
- Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, PR China
| | - Haolun Ma
- Department of Chemical and Environmental Engineering, University of Nottingham Ningbo China, Ningbo, PR China
| | - Shanshan Jiang
- Department of Chemical and Environmental Engineering, University of Nottingham Ningbo China, Ningbo, PR China
| | - Jianrong Li
- Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, PR China
| | - Yong Sun
- Department of Chemical and Environmental Engineering, University of Nottingham Ningbo China, Ningbo, PR China
| | - Chengjun Wang
- College of Resources and Environmental Sciences, South-Central Minzu University, Wuhan, PR China
| | - Yong Ren
- Department of Mechanical, Materials and Manufacturing Engineering, University of Nottingham Ningbo China, PR China
| | - George Zheng Chen
- Department of Chemical and Environmental Engineering, University of Nottingham, Nottingham, UK
| | - Jun He
- Department of Chemical and Environmental Engineering, University of Nottingham Ningbo China, Ningbo, PR China; Nottingham Ningbo China Beacons of Excellence Research and Innovation Institute, Ningbo, PR China.
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Kevlishvili I, Duan C, Kulik HJ. Classification of Hemilabile Ligands Using Machine Learning. J Phys Chem Lett 2023:11100-11109. [PMID: 38051982 DOI: 10.1021/acs.jpclett.3c02828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2023]
Abstract
Hemilabile ligands have the capacity to partially disengage from a metal center, providing a strategy to balance stability and reactivity in catalysis, but they are not straightforward to identify. We identify ligands in the Cambridge Structural Database that have been crystallized with distinct denticities and are thus identifiable as hemilabile ligands. We implement a semi-supervised learning approach using a label-spreading algorithm to augment a small negative set that is supported by heuristic rules of ligand and metal co-occurrence. We show that a heuristic based on coordinating atom identity alone is not sufficient to identify whether a ligand is hemilabile, and our trained machine-learning classification models are instead needed to predict whether a bi-, tri-, or tetradentate ligand is hemilabile with high accuracy and precision. Feature importance analysis of our models shows that the second, third, and fourth coordination spheres all play important roles in ligand hemilability.
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Affiliation(s)
- Ilia Kevlishvili
- Department of Chemical Engineering, 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
| | - 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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Han Y, Ye K, Huang Y, Wu Z, Hu P, Zhang G. Leveraging Interlayer Interaction in M-N-C Catalysts for Enhanced Activity in Oxygen Reduction Reactions. J Phys Chem Lett 2023; 14:9900-9908. [PMID: 37903101 DOI: 10.1021/acs.jpclett.3c02385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2023]
Abstract
Atomically dispersed metal-nitrogen-carbon (M-N-C) materials are deemed promising catalysts for the oxygen reduction reaction (ORR) in fuel cells. Yet the multilayer nature of M-N-C has been largely neglected in computational analysis. To bridge the gap, we conducted a first-principles investigation using bilayer M-N-C models (TMNx/G-TMNy/G, TM = Mn, Fe, Co, Ni, Cu, G = graphene, x, y = 3 or 4), where the TMs on the top serves as the active center. While in-plane TMN4 at the bottom has a minimal impact on the ORR, out-of-plane TMN3 substantially influences the adsorption free energy of OH through a strong interlayer bonding interaction. By leveraging interlayer interactions, we appreciably lowered the overpotential of selected TMN4 (TM = Co, Ni, Cu) and achieved a minimum of 0.40 V on CoN4/G-CuN3/G. Constant potential calculations revealed weak dependence of OH binding energy on external voltage and obtained results comparable to constant charge calculation. This study provided new physical insight into modulating naturally occurring multilayer M-N-C catalysts.
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Affiliation(s)
- Yulan Han
- School of Chemistry and Chemical Engineering, Queen's University Belfast, Belfast BT9 5AG, U.K
- Hefei National Research Center for Physical Sciences at Microscale, University of Science and Technology of China, Hefei, Anhui 230026 China
| | - Ke Ye
- Hefei National Research Center for Physical Sciences at Microscale, University of Science and Technology of China, Hefei, Anhui 230026 China
| | - Yang Huang
- School of Chemistry and Chemical Engineering, Queen's University Belfast, Belfast BT9 5AG, U.K
| | - Ziye Wu
- School of Information, Guizhou University of Finance and Economics, Guiyang 550025, China
| | - P Hu
- School of Chemistry and Chemical Engineering, Queen's University Belfast, Belfast BT9 5AG, U.K
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Guozhen Zhang
- Hefei National Research Center for Physical Sciences at Microscale, University of Science and Technology of China, Hefei, Anhui 230026 China
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