1
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Xu Y, Ma Y, Chen X, Wu K, Wang K, Shen Y, Liu S, Gao XJ, Zhang Y. Regulating Reactive Oxygen Intermediates of Fe-N-C SAzyme via Second-Shell Coordination for Selective Aerobic Oxidation Reactions. Angew Chem Int Ed Engl 2024; 63:e202408935. [PMID: 38895986 DOI: 10.1002/anie.202408935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2024] [Revised: 06/05/2024] [Accepted: 06/19/2024] [Indexed: 06/21/2024]
Abstract
Reactive oxygen species (ROS) regulation for single-atom nanozymes (SAzymes), e.g., Fe-N-C, is a key scientific issue that determines the activity, selectivity, and stability of aerobic reaction. However, the poor understanding of ROS formation mechanism on SAzymes greatly hampers their wider deployment. Herein, inspired by cytochromes P450 affording bound ROS intermediates in O2 activation, we report Fe-N-C containing the same FeN4 but with tunable second-shell coordination can effectively regulate ROS production pathways. Remarkably, compared to the control Fe-N-C sample, the second-shell sulfur functionalized Fe-N-C delivered a 2.4-fold increase of oxidase-like activity via the bound Fe=O intermediate. Conversely, free ROS (⋅O2 -) release was significantly reduced after functionalization, down to only 17 % of that observed for Fe-N-C. The detailed characterizations and theoretical calculations revealed that the second-shell sulfur functionalization significantly altered the electronic structure of FeN4 sites, leading to an increase of electron density at Fermi level. It enhanced the electron transfer from active sites to the key intermediate *OOH, thereby ultimately determining the type of ROS in aerobic oxidation process. The proposed Fe-N-Cs with different second-shell anion were further applied to three aerobic oxidation reactions with enhanced activity, selectivity, and stability.
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Affiliation(s)
- Yuan Xu
- School of Chemistry and Chemical Engineering, Medical School, Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, Jiangsu Province Hi-Tech Key Laboratory for Bio Medical Research, Southeast University, Nanjing, 211189, China
| | - Yuanjie Ma
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, 330022, China
| | - Xinghua Chen
- School of Chemistry and Chemical Engineering, Medical School, Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, Jiangsu Province Hi-Tech Key Laboratory for Bio Medical Research, Southeast University, Nanjing, 211189, China
| | - Kaiqing Wu
- School of Chemistry and Chemical Engineering, Medical School, Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, Jiangsu Province Hi-Tech Key Laboratory for Bio Medical Research, Southeast University, Nanjing, 211189, China
| | - Kaiyuan Wang
- School of Chemistry and Chemical Engineering, Medical School, Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, Jiangsu Province Hi-Tech Key Laboratory for Bio Medical Research, Southeast University, Nanjing, 211189, China
| | - Yanfei Shen
- School of Chemistry and Chemical Engineering, Medical School, Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, Jiangsu Province Hi-Tech Key Laboratory for Bio Medical Research, Southeast University, Nanjing, 211189, China
| | - Songqin Liu
- School of Chemistry and Chemical Engineering, Medical School, Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, Jiangsu Province Hi-Tech Key Laboratory for Bio Medical Research, Southeast University, Nanjing, 211189, China
| | - Xuejiao J Gao
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, 330022, China
| | - Yuanjian Zhang
- School of Chemistry and Chemical Engineering, Medical School, Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, Jiangsu Province Hi-Tech Key Laboratory for Bio Medical Research, Southeast University, Nanjing, 211189, China
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2
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Liu X, Huang L, Ma Y, She G, Zhou P, Zhu L, Zhang Z. Enable biomass-derived alcohols mediated alkylation and transfer hydrogenation. Nat Commun 2024; 15:7012. [PMID: 39147765 PMCID: PMC11327299 DOI: 10.1038/s41467-024-51307-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Accepted: 07/31/2024] [Indexed: 08/17/2024] Open
Abstract
A single-atom catalyst with generally regarded inert Zn-N4 motifs derived from ZIF-8 is unexpectedly efficient for the activation of alcohols, enabling alcohol-mediated alkylation and transfer hydrogenation. C-alkylation of nitriles, ketones, alcohols, N-heterocycles, amides, keto acids, and esters, and N-alkylation of amines and amides all go smoothly with the developed method. Taking the α-alkylation of nitriles with alcohols as an example, the α-alkylation starts from the (1) nitrogen-doped carbon support catalyzed dehydrogenation of alcohols into aldehydes, which further condensed with nitriles to give vinyl nitriles, followed by (2) transfer hydrogenation of C=C bonds in vinyl nitriles on Zn-N4 sites. The experimental results and DFT calculations reveal that the Lewis acidic Zn-N4 sites promote step (2) by activating the alcohols. This is the first example of highly efficient single-atom catalysts for various organic transformations with biomass-derived alcohols as the alkylating reagents and hydrogen donors.
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Affiliation(s)
- Xixi Liu
- Key Laboratory of Catalysis and Materials Sciences of the Ministry of Education, South-Central Minzu University, Wuhan, China
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan, China
| | - Liang Huang
- The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan, China
| | - Yuandie Ma
- Key Laboratory of Catalysis and Materials Sciences of the Ministry of Education, South-Central Minzu University, Wuhan, China
| | - Guoqiang She
- Key Laboratory of Catalysis and Materials Sciences of the Ministry of Education, South-Central Minzu University, Wuhan, China
| | - Peng Zhou
- Key Laboratory of Catalysis and Materials Sciences of the Ministry of Education, South-Central Minzu University, Wuhan, China
| | - Liangfang Zhu
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan, China
| | - Zehui Zhang
- Key Laboratory of Catalysis and Materials Sciences of the Ministry of Education, South-Central Minzu University, Wuhan, China.
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3
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Thiruvengetam P, Sunani P, Kumar Chand D. A Metallomicellar Catalyst for Controlled Oxidation of Alcohols and Lignin Mimics in Water using Open Air as Oxidant. CHEMSUSCHEM 2024; 17:e202301754. [PMID: 38224525 DOI: 10.1002/cssc.202301754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Revised: 01/06/2024] [Accepted: 01/15/2024] [Indexed: 01/17/2024]
Abstract
Alcohol groups and β-O-4 (C-C) linkages are widespread in biomass feedstock that are abundant renewable resource for value-added chemicals. The development of sustainable protocols for direct oxidation or oxidative cleavage of feedstock materials in a controlled fashion, using open air as an oxidant is an intellectually stimulating task to produce industrially important value-added carbonyls. Further, the oxidative depolymerization of lignin into fine chemicals has evoked interest in recent times. Herein, we report the first example of a catalyst system that could activate molecular oxygen from atmospheric air for controlled oxidation and oxidative cleavage/depolymerization of feedstock materials such as alcohols, β-O-4 (C-C) linkages and real lignin in water under open air conditions. The selectivity of carbonyl products is controlled by altering the pH between ~7.0 and ~12.0. The current strategy highlights the non-involvement of any external co-catalyst, oxidant, radical additives, and/or destructive organic solvents. The catalyst shows a wide substrate scope and eminent functional group tolerance. The upscaled multigram synthesis using an inexpensive catalyst and easily available oxidant evidences the practical utility of the developed protocol. A plausible mechanism has been proposed with the help of a few controlled experiments, and kinetic and computational studies.
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Affiliation(s)
- Prabaharan Thiruvengetam
- IoE Centre of Molecular Architecture, Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600036, India
| | - Pragyansmruti Sunani
- IoE Centre of Molecular Architecture, Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600036, India
| | - Dillip Kumar Chand
- IoE Centre of Molecular Architecture, Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600036, India
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4
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Yang J, Li G, Chen S, Su X, Xu D, Zhai Y, Liu Y, Hu G, Guo C, Yang HB, Occhipinti LG, Hu FX. Machine Learning-Assistant Colorimetric Sensor Arrays for Intelligent and Rapid Diagnosis of Urinary Tract Infection. ACS Sens 2024; 9:1945-1956. [PMID: 38530950 DOI: 10.1021/acssensors.3c02687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/28/2024]
Abstract
Urinary tract infections (UTIs), which can lead to pyelonephritis, urosepsis, and even death, are among the most prevalent infectious diseases worldwide, with a notable increase in treatment costs due to the emergence of drug-resistant pathogens. Current diagnostic strategies for UTIs, such as urine culture and flow cytometry, require time-consuming protocols and expensive equipment. We present here a machine learning-assisted colorimetric sensor array based on recognition of ligand-functionalized Fe single-atom nanozymes (SANs) for the identification of microorganisms at the order, genus, and species levels. Colorimetric sensor arrays are built from the SAN Fe1-NC functionalized with four types of recognition ligands, generating unique microbial identification fingerprints. By integrating the colorimetric sensor arrays with a trained computational classification model, the platform can identify more than 10 microorganisms in UTI urine samples within 1 h. Diagnostic accuracy of up to 97% was achieved in 60 UTI clinical samples, holding great potential for translation into clinical practice applications.
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Affiliation(s)
- Jianyu Yang
- School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Ge Li
- School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Shihong Chen
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Xiaozhi Su
- Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201204, China
| | - Dong Xu
- Department of Diagnostic Ultrasound Imaging & Interventional Therapy, Zhejiang Cancer Hospital, Hangzhou Institute of Medicine, Chinese Academy of Sciences, Hangzhou, Zhejiang 310022, China
- Wenling Big Data and Artificial Intelligence Institute in Medicine, Taizhou, Zhejiang 317502, China
- Key Laboratory of Head & Neck Cancer Translational Research of Zhejiang Province, Hangzhou, Zhejiang 310022, China
- Taizhou Key Laboratory of Minimally Invasive Interventional Therapy & Artificial Intelligence, Taizhou Campus of Zhejiang Cancer Hospital, Taizhou, Zhejiang 317502, China
| | - Yueming Zhai
- The Institute for Advanced Studies, Wuhan University, Wuhan, Hubei 430072, China
| | - Yuhang Liu
- School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Guangxuan Hu
- School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Chunxian Guo
- School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Hong Bin Yang
- School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Luigi G Occhipinti
- Department of Engineering, University of Cambridge, 9 J J Thomson Avenue, Cambridge CB3 0FA, U.K
| | - Fang Xin Hu
- School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
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5
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Cui Y, Zhou L, Wu J, Wei C, Wang W, Chen H. Lewis Acid-Promoted Oxidative Cleavage of Carbon-Carbon Bonds: Synthesis of N-Arylated Lactam-Type Iminosugars. J Org Chem 2024; 89:3383-3389. [PMID: 38364205 DOI: 10.1021/acs.joc.3c02817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2024]
Abstract
In this paper, a mild strategy for the oxidative cleavage of carbon-carbon bonds catalyzed by Lewis acid was developed in air condition at room temperature. Under such conditions, the bis-carbonyl compounds 3 were directly afforded from the reaction of D-ribose tosylate 1 and aniline in excellent yields through the oxidative cleavage of the key intermediate iminium-ion A and its tautomer enamine B. A series of N-arylated lactam-type iminosugars 5 were then successfully obtained by removing the isopropylidene group from 3 with the aid of the condensation agent DCC. Additionally, reduction of A and the removal of the isopropylidene group could provide N-arylated iminosugars 4. This strategy enables the oxidative cleavage of carbon-carbon bonds under mild conditions and facilitates the synthesis of the novel iminosugars with potent biological activity.
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Affiliation(s)
- Yaxin Cui
- Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Material Science, Hebei University, Baoding, Hebei 071002, P. R. China
| | - Likai Zhou
- Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Material Science, Hebei University, Baoding, Hebei 071002, P. R. China
- College of Chemistry and Chemical Engineering, Xingtai University, Xingtai, Hebei 054001, P. R. China
| | - Jilai Wu
- Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Material Science, Hebei University, Baoding, Hebei 071002, P. R. China
| | - Chao Wei
- Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Material Science, Hebei University, Baoding, Hebei 071002, P. R. China
| | - Weiming Wang
- Department of Gynecology, Affiliated Hospital of Hebei University, Baoding, Hebei 071002, P. R. China
| | - Hua Chen
- Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Material Science, Hebei University, Baoding, Hebei 071002, P. R. China
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6
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Xue W, Jiang Y, Lu H, You B, Wang X, Tang C. Direct C-C Double Bond Cleavage of Alkenes Enabled by Highly Dispersed Cobalt Catalyst and Hydroxylamine. Angew Chem Int Ed Engl 2023; 62:e202314364. [PMID: 37964715 DOI: 10.1002/anie.202314364] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 11/09/2023] [Accepted: 11/14/2023] [Indexed: 11/16/2023]
Abstract
The utilization of a single-atom catalyst to break C-C bonds merges the merits of homogeneous and heterogeneous catalysis and presents an intriguing pathway for obtaining high-value-added products. Herein, a mild, selective, and sustainable oxidative cleavage of alkene to form oxime ether or nitrile was achieved by using atomically dispersed cobalt catalyst and hydroxylamine. Diversified substrate patterns, including symmetrical and unsymmetrical alkenes, di- and tri-substituted alkenes, and late-stage functionalization of complex alkenes were demonstrated. The reaction was successfully scaled up and demonstrated good performance in recycling experiments. The hot filtration test, catalyst poisoning and radical scavenger experiment, time kinetics, and studies on the reaction intermediate collectively pointed to a radical mechanism with cobalt/acid/O2 promoted C-C bond cleavage as the key step.
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Affiliation(s)
- Wenxuan Xue
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, 430074, China
| | - Yijie Jiang
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, 430074, China
| | - Hongcheng Lu
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, 430074, China
| | - Bo You
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, 430074, China
| | - Xu Wang
- Institute of Advanced Science Facilities, Shenzhen (IASF), No. 268 Zhenyuan Road, Guangming District, Shenzhen, 518107, China
| | - Conghui Tang
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, 430074, China
- State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing, 100191, China
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7
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Xu B, Li S, Han A, Zhou Y, Sun M, Yang H, Zheng L, Shi R, Liu H. Engineering Atomically Dispersed Cu-N 1 S 2 Sites via Chemical Vapor Deposition to Boost Enzyme-Like Activity for Efficient Tumor Therapy. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023:e2312024. [PMID: 38101802 DOI: 10.1002/adma.202312024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2023] [Indexed: 12/17/2023]
Abstract
Single-atom nanozymes (SAzymes), with well-defined and uniform atomic structures, are an emerging type of natural enzyme mimics. Currently, it is important but challenging to rationally design high-performance SAzymes and deeply reveal the interaction mechanism between SAzymes and substrate molecules. Herein, this work reports the controllable fabrication of a unique Cu-N1 S2 -centred SAzyme (Cu-N/S-C) via a chemical vapor deposition-based sulfur-engineering strategy. Benefiting from the optimized geometric and electronic structures of single-atom sites, Cu-N/S-C SAzyme shows boosted enzyme-like activity, especially in catalase-like activity, with a 13.8-fold increase in the affinity to hydrogen peroxide (H2 O2 ) substrate and a 65.2-fold increase in the catalytic efficiency when compared to Cu-N-C SAzyme with Cu-N3 sites. Further theoretical studies reveal that the increased electron density around single-atom Cu is achieved through electron redistribution, and the efficient charge transfer between Cu-N/S-C and H2 O2 is demonstrated to be more beneficial for the adsorption and activation of H2 O2 . The as-designed Cu-N/S-C SAzyme possesses an excellent antitumor effect through the synergy of catalytic therapy and oxygen-dependent phototherapy. This study provides a strategy for the rational design of SAzymes, and the proposed electron redistribution and charge transfer mechanism will help to understand the coordination environment effect of single-atom metal sites on H2 O2 -mediated enzyme-like catalytic processes.
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Affiliation(s)
- Bolong Xu
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, State Key Laboratory of Organic-Inorganic Composites, Bionanomaterials and Translational Engineering Laboratory, Beijing Key Laboratory of Bioprocess, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Shanshan Li
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, State Key Laboratory of Organic-Inorganic Composites, Bionanomaterials and Translational Engineering Laboratory, Beijing Key Laboratory of Bioprocess, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Along Han
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, State Key Laboratory of Organic-Inorganic Composites, Bionanomaterials and Translational Engineering Laboratory, Beijing Key Laboratory of Bioprocess, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing, 100029, China
| | - You Zhou
- National Center for Orthopaedics, Beijing Research Institute of Traumatology and Orthopaedics, Beijing Jishuitan Hospital, Beijing, 100035, China
| | - Mengxue Sun
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, State Key Laboratory of Organic-Inorganic Composites, Bionanomaterials and Translational Engineering Laboratory, Beijing Key Laboratory of Bioprocess, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Haokun Yang
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, State Key Laboratory of Organic-Inorganic Composites, Bionanomaterials and Translational Engineering Laboratory, Beijing Key Laboratory of Bioprocess, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Lirong Zheng
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China
| | - Rui Shi
- National Center for Orthopaedics, Beijing Research Institute of Traumatology and Orthopaedics, Beijing Jishuitan Hospital, Beijing, 100035, China
| | - Huiyu Liu
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, State Key Laboratory of Organic-Inorganic Composites, Bionanomaterials and Translational Engineering Laboratory, Beijing Key Laboratory of Bioprocess, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing, 100029, China
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8
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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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9
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Wang C, Li J, Shao T, Zhang D, Mai Y, Li Y, Besenbacher F, Niemantsverdriet H, Rosei F, Zhong J, Su R. Electric Field Enhanced Ammoxidation of Aldehydes Using Supported Fe Clusters Under Ambient Oxygen Pressure. Angew Chem Int Ed Engl 2023:e202313313. [PMID: 37930876 DOI: 10.1002/anie.202313313] [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: 09/07/2023] [Revised: 10/18/2023] [Accepted: 11/06/2023] [Indexed: 11/08/2023]
Abstract
Heterogeneous catalytic ammoxidation provides an eco-friendly route for the cyanide-free synthesis of nitrile compounds, which are important precursors for synthetic chemistry and pharmaceutical applications. However, in general such a process requires high pressures of molecular oxygen at elevated temperatures to accelerate the oxygen reduction and imine dehydrogenation steps, which is highly risky in practical applications. Here, we report an electric field enhanced ammoxidation system using a supported Fe clusters catalyst (Fe/NC), which enables efficient synthesis of nitriles from the corresponding aldehydes under ambient air pressure at room temperature (RT). A synergistic effect between the external electric field and the Fe/NC catalyst promotes the ammonia activation and the dehydrogenation of the generated imine intermediates and avoids the unwanted backwards reaction to aldehydes. This electric field enhanced ammoxidation system presents high efficiency and selectivity for the conversion of a series of aldehydes under mild conditions with high durability, rendering it an attractive process for the green synthesis of nitriles with fragile functional groups.
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Affiliation(s)
- Chao Wang
- Soochow Institute for Energy and Materials InnovationS (SIEMIS), Soochow University, Suzhou, 215006, China
- SynCat@Beijing, Synfuels China Technology Co. Ltd., Leyuan South Street II, No.1, Yanqi Economic Development Zone C#, Beijing, 101407, China
| | - Jialu Li
- Soochow Institute for Energy and Materials InnovationS (SIEMIS), Soochow University, Suzhou, 215006, China
- SynCat@Beijing, Synfuels China Technology Co. Ltd., Leyuan South Street II, No.1, Yanqi Economic Development Zone C#, Beijing, 101407, China
| | - Tianyu Shao
- Soochow Institute for Energy and Materials InnovationS (SIEMIS), Soochow University, Suzhou, 215006, China
- SynCat@Beijing, Synfuels China Technology Co. Ltd., Leyuan South Street II, No.1, Yanqi Economic Development Zone C#, Beijing, 101407, China
| | - Dongsheng Zhang
- Soochow Institute for Energy and Materials InnovationS (SIEMIS), Soochow University, Suzhou, 215006, China
- SynCat@Beijing, Synfuels China Technology Co. Ltd., Leyuan South Street II, No.1, Yanqi Economic Development Zone C#, Beijing, 101407, China
| | - Yuanqiang Mai
- Soochow Institute for Energy and Materials InnovationS (SIEMIS), Soochow University, Suzhou, 215006, China
- SynCat@Beijing, Synfuels China Technology Co. Ltd., Leyuan South Street II, No.1, Yanqi Economic Development Zone C#, Beijing, 101407, China
| | - Yongwang Li
- SynCat@Beijing, Synfuels China Technology Co. Ltd., Leyuan South Street II, No.1, Yanqi Economic Development Zone C#, Beijing, 101407, China
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, CAS, Taiyuan, 030001, China
| | - Flemming Besenbacher
- Interdisciplinary Nanoscience Center, Aarhus University, Gustav Wieds Vej 14, 8000, Aarhus, Denmark
| | - Hans Niemantsverdriet
- SynCat@Beijing, Synfuels China Technology Co. Ltd., Leyuan South Street II, No.1, Yanqi Economic Development Zone C#, Beijing, 101407, China
- Syngaschem BV, Valeriaanlaan 16, 5672 XD, Nuenen (The, Netherlands
| | - Federico Rosei
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Via Giorgeri 1, 34127, Trieste, Italy
| | - Jun Zhong
- Institute of Functional Nano and Soft Materials Laboratory (FUNSOM), Soochow University, Suzhou, 215123, China
| | - Ren Su
- Soochow Institute for Energy and Materials InnovationS (SIEMIS), Soochow University, Suzhou, 215006, China
- SynCat@Beijing, Synfuels China Technology Co. Ltd., Leyuan South Street II, No.1, Yanqi Economic Development Zone C#, Beijing, 101407, China
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10
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Chen D, Xia Z, Guo Z, Gou W, Zhao J, Zhou X, Tan X, Li W, Zhao S, Tian Z, Qu Y. Bioinspired porous three-coordinated single-atom Fe nanozyme with oxidase-like activity for tumor visual identification via glutathione. Nat Commun 2023; 14:7127. [PMID: 37949885 PMCID: PMC10638392 DOI: 10.1038/s41467-023-42889-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Accepted: 10/25/2023] [Indexed: 11/12/2023] Open
Abstract
Inspired by structures of natural metalloenzymes, a biomimetic synthetic strategy is developed for scalable synthesis of porous Fe-N3 single atom nanozymes (pFeSAN) using hemoglobin as Fe-source and template. pFeSAN delivers 3.3- and 8791-fold higher oxidase-like activity than Fe-N4 and Fe3O4 nanozymes. The high catalytic performance is attributed to (1) the suppressed aggregation of atomically dispersed Fe; (2) facilitated mass transfer and maximized exposure of active sites for the created mesopores by thermal removal of hemoglobin (2 ~ 3 nm); and (3) unique electronic configuration of Fe-N3 for the oxygen-to-water oxidation pathway (analogy with natural cytochrome c oxidase). The pFeSAN is successfully demonstrated for the rapid colorimetric detection of glutathione with a low limit of detection (2.4 nM) and wide range (50 nM-1 mM), and further developed as a real-time, facile, rapid (~6 min) and precise visualization analysis methodology of tumors via glutathione level, showing its potentials for diagnostic and clinic applications.
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Affiliation(s)
- Da Chen
- Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, 710072, Xi'an, China
| | - Zhaoming Xia
- Department of Chemistry, Southern University of Science and Technology, 518055, Shenzhen, China
| | - Zhixiong Guo
- Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, 710072, Xi'an, China
| | - Wangyan Gou
- Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, 710072, Xi'an, China
| | - Junlong Zhao
- State Key Laboratory of Cancer Biology, Department of Medical Genetics and Developmental Biology, Fourth Military Medical University, 710032, Xi'an, China
| | - Xuemei Zhou
- Key Laboratory of Carbon Materials of Zhejiang Province, Wenzhou University, 325035, Wenzhou, China
| | - Xiaohe Tan
- Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, 710072, Xi'an, China
| | - Wenbin Li
- Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, 710072, Xi'an, China
| | - Shoujie Zhao
- State Key Laboratory of Cancer Biology, Department of Medical Genetics and Developmental Biology, Fourth Military Medical University, 710032, Xi'an, China
| | - Zhimin Tian
- Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, 710072, Xi'an, China.
| | - Yongquan Qu
- Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, 710072, Xi'an, China.
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11
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Qi H, Mao S, Rabeah J, Qu R, Yang N, Chen Z, Bourriquen F, Yang J, Li J, Junge K, Beller M. Water-Promoted Carbon-Carbon Bond Cleavage Employing a Reusable Fe Single-Atom Catalyst. Angew Chem Int Ed Engl 2023; 62:e202311913. [PMID: 37681485 DOI: 10.1002/anie.202311913] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 09/07/2023] [Accepted: 09/08/2023] [Indexed: 09/09/2023]
Abstract
The development of methods for selective cleavage reactions of thermodynamically stable C-C/C=C bonds in a green manner is a challenging research field which is largely unexplored. Herein, we present a heterogeneous Fe-N-C catalyst with highly dispersed iron centers that allows for the oxidative C-C/C=C bond cleavage of amines, secondary alcohols, ketones, and olefins in the presence of air (O2 ) and water (H2 O). Mechanistic studies reveal the presence of water to be essential for the performance of the Fe-N-C system, boosting the product yield from <1 % to >90 %. Combined spectroscopic characterizations and control experiments suggest the singlet 1 O2 and hydroxide species generated from O2 and H2 O, respectively, take selectively part in the C-C bond cleavage. The broad applicability (>40 examples) even for complex drugs as well as high activity, selectivity, and durability under comparably mild conditions highlight this unique catalytic system.
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Affiliation(s)
- Haifeng Qi
- Leibniz-Institut für Katalyse, Albert-Einstein-Straße 29a, 18059, Rostock, Germany
| | - Shuxin Mao
- Leibniz-Institut für Katalyse, Albert-Einstein-Straße 29a, 18059, Rostock, Germany
| | - Jabor Rabeah
- Leibniz-Institut für Katalyse, Albert-Einstein-Straße 29a, 18059, Rostock, Germany
| | - Ruiyang Qu
- Leibniz-Institut für Katalyse, Albert-Einstein-Straße 29a, 18059, Rostock, Germany
| | - Na Yang
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 611731, China
| | - Zupeng Chen
- Leibniz-Institut für Katalyse, Albert-Einstein-Straße 29a, 18059, Rostock, Germany
- Analytical & Testing Center College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, China
| | - Florian Bourriquen
- Leibniz-Institut für Katalyse, Albert-Einstein-Straße 29a, 18059, Rostock, Germany
| | - Ji Yang
- College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Jianfeng Li
- College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Kathrin Junge
- Leibniz-Institut für Katalyse, Albert-Einstein-Straße 29a, 18059, Rostock, Germany
| | - Matthias Beller
- Leibniz-Institut für Katalyse, Albert-Einstein-Straße 29a, 18059, Rostock, Germany
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12
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Zhou P, Yuan Z, He J, Fang T, Liu B, Zhang Z. Aerobic oxidative C-C bond cleavage and functionalization for the synthesis of value-added chemicals. Chem Commun (Camb) 2023; 59:11923-11931. [PMID: 37712348 DOI: 10.1039/d3cc03820c] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/16/2023]
Abstract
The aerobic oxidative cleavage of C-C bonds is an attractive and sustainable route for constructing valuable molecules such as esters, nitriles, and amides. Traditionally homogeneous catalytic systems for C-C bond cleavage required harsh conditions, stoichiometric oxidants, and noble metal catalysts to overcome the thermodynamic and kinetic barriers of C-C bonds, imposing environmental concerns of the transformation. Therefore, developing efficient, low-cost, and environmentally benign methods for C-C bond cleavage is of great importance and a cutting-edge area in modern chemistry. This feature article summarizes the sustainable aerobic oxidative C-C bond cleavage method developed by our group in the past 5 years. Fundamental principles in catalyst design, substrate scope, and mechanism for C-C bond cleavage are also discussed.
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Affiliation(s)
- Peng Zhou
- School of Chemistry, Monash University, Wellington Road, Clayton 3800, Victoria, Australia
| | - Ziliang Yuan
- Key Laboratory of Catalysis and Materials Sciences of the Ministry of Education, South-Central Minzu University, Wuhan 430074, P. R. China.
| | - Jie He
- Key Laboratory of Catalysis and Materials Sciences of the Ministry of Education, South-Central Minzu University, Wuhan 430074, P. R. China.
| | - Tingfeng Fang
- Key Laboratory of Catalysis and Materials Sciences of the Ministry of Education, South-Central Minzu University, Wuhan 430074, P. R. China.
| | - Bing Liu
- Key Laboratory of Catalysis and Materials Sciences of the Ministry of Education, South-Central Minzu University, Wuhan 430074, P. R. China.
| | - Zehui Zhang
- Key Laboratory of Catalysis and Materials Sciences of the Ministry of Education, South-Central Minzu University, Wuhan 430074, P. R. China.
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13
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Li Y, Luo H, Wang S, Li L, Li G, Dai W. Cobalt nanoparticles-catalyzed aerobic oxygenation and esterification of alkynes via C≡C bonds cleavage. iScience 2023; 26:107608. [PMID: 37664625 PMCID: PMC10470385 DOI: 10.1016/j.isci.2023.107608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 06/16/2023] [Accepted: 08/07/2023] [Indexed: 09/05/2023] Open
Abstract
An unprecedented efficient protocol is developed for the oxidative cleavage of C≡C bonds in alkynes to produce structure-diverse esters using heterogeneous cobalt nanoparticles as catalyst with molecular oxygen as the oxidant. A diverse set of mono- and multisubstituted aromatic and aliphatic alkynes can be effectively cleaved and converted into the corresponding esters. Characterization analysis and control experiments indicate high surface area and pore volume, as well as nanostructured nitrogen-doped graphene-layer coated cobalt nanoparticles are possibly responsible for excellent catalytic activity. Mechanistic studies reveal that ketones derived from alkynes under oxidative conditions are formed as intermediates, which subsequently are converted to esters through a tandem sequential process. The catalyst can be recycled up to five times without significant loss of activity.
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Affiliation(s)
- Yujing Li
- School of Petrochemical Engineering, Liaoning Petrochemical University, Fushun 113001, P.R. China
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P.R. China
| | - Huihui Luo
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P.R. China
- University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Shuo Wang
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P.R. China
| | - Lei Li
- School of Petrochemical Engineering, Liaoning Petrochemical University, Fushun 113001, P.R. China
| | - Guosong Li
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P.R. China
| | - Wen Dai
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P.R. China
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14
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Li J, Li Y, Wu K, Deng A, Li J. Ultra-sensitive detection of 5-fluorouracil by flow injection chemiluminescence immunoassay based on Fenton-like effect of single atom Co nanozyme. Talanta 2023; 265:124870. [PMID: 37418955 DOI: 10.1016/j.talanta.2023.124870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 06/14/2023] [Accepted: 06/20/2023] [Indexed: 07/09/2023]
Abstract
Single atom nanozymes (SAzymes) are considered as the most hopeful candidates for replacing natural enzymes. In this work, a flow-injection chemiluminescent immunoassay (FI-CLIA) based on a Fenton-like activity single atom cobalt nanozyme (Co SAzyme) was developed for the rapid and sensitive detection of 5-fluorouracil (5-Fu) in serum for the first time. Co SAzyme was prepared by an in-situ etching method at room temperature using ZIF-8 metal-organic frameworks (ZIF-8 MOFs). With excellent chemical stability and ultra-high porosity of ZIF-8 MOFs as the core, Co SAzyme presents high Fenton-like activity which can catalyze the decomposition of H2O2 to produce large amounts of superoxide radical anions, thus effectively amplifying the chemiluminescence of the Luminol-H2O2 system. In addition, carboxyl-modified resin beads were used as the substrate to load more antigens due to its advantages of good biocompatibility and large specific surface area. Under optimal conditions, the detection range of 5-Fu was 0.001-1000 ng mL-1 with a limit of detection of 0.29 pg mL-1 (S/N = 3). Furthermore, the immunosensor was successfully applied for the detection of 5-Fu in human serum samples with satisfactory results, displaying the potential application of this strategy for bioanalysis and clinical diagnosis.
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Affiliation(s)
- Jiao Li
- The Key Lab of Health Chemistry & Molecular Diagnosis of Suzhou, College of Chemistry, Chemical Engineering & Materials Science, Soochow University, Suzhou, 215123, PR China
| | - Youju Li
- The Key Lab of Health Chemistry & Molecular Diagnosis of Suzhou, College of Chemistry, Chemical Engineering & Materials Science, Soochow University, Suzhou, 215123, PR China
| | - Kang Wu
- School of Biology & Basic Medical Science, Soochow University, Suzhou, 215123, PR China.
| | - Anping Deng
- The Key Lab of Health Chemistry & Molecular Diagnosis of Suzhou, College of Chemistry, Chemical Engineering & Materials Science, Soochow University, Suzhou, 215123, PR China.
| | - Jianguo Li
- The Key Lab of Health Chemistry & Molecular Diagnosis of Suzhou, College of Chemistry, Chemical Engineering & Materials Science, Soochow University, Suzhou, 215123, PR China.
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15
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Luo H, Tian S, Liang H, Wang H, Gao S, Dai W. Oxidative cleavage and ammoxidation of organosulfur compounds via synergistic Co-Nx sites and Co nanoparticles catalysis. Nat Commun 2023; 14:2981. [PMID: 37221164 DOI: 10.1038/s41467-023-38614-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Accepted: 05/10/2023] [Indexed: 05/25/2023] Open
Abstract
The cleavage and functionalization of C-S bonds have become a rapidly growing field for the design or discovery of new transformations. However, it is usually difficult to achieve in a direct and selective fashion due to the intrinsic inertness and catalyst-poisonous character. Herein, for the first time, we report a novel and efficient protocol that enables direct oxidative cleavage and cyanation of organosulfur compounds by heterogeneous nonprecious-metal Co-N-C catalyst comprising graphene encapsulated Co nanoparticles and Co-Nx sites using oxygen as environmentally benign oxidant and ammonia as nitrogen source. A wide variety of thiols, sulfides, sulfoxides, sulfones, sulfonamides, and sulfonyl chlorides are viable in this reaction, enabling access to diverse nitriles under cyanide-free conditions. Moreover, modifying the reaction conditions also allows for the cleavage and amidation of organosulfur compounds to deliver amides. This protocol features excellent functional group tolerance, facile scalability, cost-effective and recyclable catalyst, and broad substrate scope. Characterization and mechanistic studies reveal that the remarkable effectiveness of the synergistic catalysis of Co nanoparticles and Co-Nx sites is crucial for achieving outstanding catalytic performance.
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Affiliation(s)
- Huihui Luo
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, PR China
- University of Chinese Academy of Sciences, Beijing, PR China
| | - Shuainan Tian
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, PR China
- School of Chemistry and Materials Science, Liaoning Shihua University, Fushun, PR China
| | - Hongliang Liang
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, PR China
| | - He Wang
- School of Chemistry and Materials Science, Liaoning Shihua University, Fushun, PR China.
| | - Shuang Gao
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, PR China
| | - Wen Dai
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, PR China.
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16
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Qin J, Han B, Lu X, Nie J, Xian C, Zhang Z. Biomass-Derived Single Zn Atom Catalysts: The Multiple Roles of Single Zn Atoms in the Oxidative Cleavage of C-N Bonds. JACS AU 2023; 3:801-812. [PMID: 37006771 PMCID: PMC10052240 DOI: 10.1021/jacsau.2c00605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 01/01/2023] [Accepted: 01/04/2023] [Indexed: 06/19/2023]
Abstract
The C-N bond cleavage represents one kind of important organic and biochemical transformation, which has attracted great interest in recent years. The oxidative cleavage of C-N bonds in N,N-dialkylamines into N-alkylamines has been well documented, but it is challenging in the further oxidative cleavage of C-N bonds in N-alkylamines into primary amines due to the thermally unfavorable release of α-position H from N-Cα-H and the paralleling side reactions. Herein, a biomass-derived single Zn atom catalyst (ZnN4-SAC) was discovered to be a robust heterogeneous non-noble catalyst for the oxidative cleavage of C-N bonds in N-alkylamines with O2 molecules. Experimental results and DFT calculation revealed that ZnN4-SAC not only activates O2 to generate superoxide radicals (·O2 -) for the oxidation of N-alkylamines to generate imine intermediates (C=N), but the single Zn atoms also served as the Lewis acid sites to promote the cleavage of C=N bonds in imine intermediates, including the first addition of H2O to generate α-hydroxylamine intermediates and the following C-N bond cleavage via a H atom transfer process.
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Affiliation(s)
- Jingzhong Qin
- School
of Chemistry and Materials Science, South-Central
Minzu University, Wuhan, Hubei 430074, P. R. China
| | - Bo Han
- Sustainable
Energy Laboratory, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, Hubei 430074, P. R. China
| | - Xiaomei Lu
- School
of Chemistry and Materials Science, South-Central
Minzu University, Wuhan, Hubei 430074, P. R. China
| | - Jiabao Nie
- School
of Chemistry and Materials Science, South-Central
Minzu University, Wuhan, Hubei 430074, P. R. China
| | - Chensheng Xian
- School
of Chemistry and Materials Science, South-Central
Minzu University, Wuhan, Hubei 430074, P. R. China
| | - Zehui Zhang
- School
of Chemistry and Materials Science, South-Central
Minzu University, Wuhan, Hubei 430074, P. R. China
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17
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Zhang H, Cui P, Xie D, Wang Y, Wang P, Sheng G. Axial N Ligand-Modulated Ultrahigh Activity and Selectivity Hyperoxide Activation over Single-Atoms Nanozymes. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2205681. [PMID: 36446629 PMCID: PMC9875630 DOI: 10.1002/advs.202205681] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 10/28/2022] [Indexed: 06/16/2023]
Abstract
Learning and studying the structure-activity relationship in the bio-enzymes is conducive to the design of nanozymes for energy and environmental application. Herein, Fe single-atom nanozymes (Fe-SANs) with Fe-N5 site, inspired by the structure of cytochromes P450 (CYPs), are developed and characterized. Similar to the CYPs, the hyperoxide can activate the Fe(III) center of Fe-SANs to generate Fe(IV)O intermediately, which can transfer oxygen to the substrate with ultrafast speed. Particularly, using the peroxymonosulfate (PMS)-activated Fe-SANs to oxidize sulfamethoxazole, a typical antibiotic contaminant, as the model hyperoxides activation reaction, the excellent activity within 284 min-1 g-1 (catalyst) mmol-1 (PMS) oxidation rate and 91.6% selectivity to the Fe(IV)O intermediate oxidation are demonstrated. More importantly, instead of promoting PMS adsorption, the axial N ligand modulates the electron structure of FeN5 SANs for the lower reaction energy barrier and promotes electron transfer to PMS to produce Fe(IV)O intermediate with high selectivity. The highlight of the axial N coordination in the nanozymes in this work provides deep insight to guide the design and development of nanozymes nearly to the bio-enzyme with excellent activity and selectivity.
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Affiliation(s)
- Han‐Chao Zhang
- CAS Key Laboratory of Urban Pollutant ConversionDepartment of Environmental Science and EngineeringUniversity of Science and Technology of ChinaHefei230026China
- Department of Civil & Environmental EngineeringThe Hong Kong Polytechnic UniversityKowloonHong Kong999077China
| | - Pei‐Xin Cui
- Key Laboratory of Soil Environment and Pollution RemediationInstitute of Soil ScienceChinese Academy of SciencesNanjing210008China
| | - Dong‐Hua Xie
- CAS Key Laboratory of Urban Pollutant ConversionDepartment of Environmental Science and EngineeringUniversity of Science and Technology of ChinaHefei230026China
| | - Yu‐Jun Wang
- Key Laboratory of Soil Environment and Pollution RemediationInstitute of Soil ScienceChinese Academy of SciencesNanjing210008China
| | - Peng Wang
- Department of Civil & Environmental EngineeringThe Hong Kong Polytechnic UniversityKowloonHong Kong999077China
| | - Guo‐Ping Sheng
- CAS Key Laboratory of Urban Pollutant ConversionDepartment of Environmental Science and EngineeringUniversity of Science and Technology of ChinaHefei230026China
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