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Zhang W, Lucier BEG, Terskikh VV, Chen S, Huang Y. Understanding Cu(i) local environments in MOFs via63/65Cu NMR spectroscopy. Chem Sci 2024; 15:6690-6706. [PMID: 38725502 PMCID: PMC11077522 DOI: 10.1039/d4sc00782d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Accepted: 02/26/2024] [Indexed: 05/12/2024] Open
Abstract
The field of metal-organic frameworks (MOFs) includes a vast number of hybrid organic and inorganic porous materials with wide-ranging applications. In particular, the Cu(i) ion exhibits rich coordination chemistry in MOFs and can exist in two-, three-, and four-coordinate environments, which gives rise to many structural motifs and potential applications. Direct characterization of the structurally and chemically important Cu(i) local environments is essential for understanding the sources of specific MOF properties. For the first time, 63/65Cu solid-state NMR has been used to investigate a variety of Cu(i) sites and local coordination geometries in Cu MOFs. This approach is a sensitive probe of the local Cu environment, particularly when combined with density functional theory calculations. A wide range of structurally-dependent 63/65Cu NMR parameters have been observed, including 65Cu quadrupolar coupling constants ranging from 18.8 to 74.8 MHz. Using the data from this and prior studies, a correlation between Cu quadrupolar coupling constants, Cu coordination number, and local Cu coordination geometry has been established. Links between DFT-calculated and experimental Cu NMR parameters are also presented. Several case studies illustrate the feasibility of 63/65Cu NMR for investigating and resolving inequivalent Cu sites, monitoring MOF phase changes, interrogating the Cu oxidation number, and characterizing the product of a MOF chemical reaction involving Cu(ii) reduction to Cu(i). A convenient avenue to acquire accurate 65Cu NMR spectra and NMR parameters from Cu(i) MOFs at a widely accessible magnetic field of 9.4 T is described, with a demonstrated practical application for tracking Cu(i) coordination evolution during MOF anion exchange. This work showcases the power of 63/65Cu solid-state NMR spectroscopy and DFT calculations for molecular-level characterization of Cu(i) centers in MOFs, along with the potential of this protocol for investigating a wide variety of MOF structural changes and processes important for practical applications. This approach has broad applications for examining Cu(i) centers in other weight-dilute systems.
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Affiliation(s)
- Wanli Zhang
- Department of Chemistry, The University of Western Ontario 1151 Richmond Street London Ontario N6A 5B7 Canada
| | - Bryan E G Lucier
- Department of Chemistry, The University of Western Ontario 1151 Richmond Street London Ontario N6A 5B7 Canada
| | - Victor V Terskikh
- Metrology, National Research Council Canada Ottawa Ontario K1A 0R6 Canada
| | - Shoushun Chen
- College of Chemistry and Chemical Engineering, Lanzhou University Lanzhou 730000 China
| | - Yining Huang
- Department of Chemistry, The University of Western Ontario 1151 Richmond Street London Ontario N6A 5B7 Canada
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2
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Zhao X, Qin BB, He T, Wang HP, Liu J. Stable Pyrene-Based Metal-Organic Framework for Cyclization of Propargylic Amines with CO 2 and Detection of Antibiotics in Water. Inorg Chem 2023; 62:18553-18562. [PMID: 37906732 DOI: 10.1021/acs.inorgchem.3c02785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2023]
Abstract
A pyrene-based metal-organic framework, Cd2(PTTB)(H2O)2 (WYU-11), was synthesized from the tetracarboxylic pyrene ligand H4PTTB (H4PTTB = 1,3,6,8-tetrakis(3-carboxyphenyl)pyrene) and Cd(NO3)2·4H2O. Powder X-ray diffraction analysis discloses that the framework is stable in acid, base, and various organic solvent environments. WYU-11 shows excellent catalytic performance on the cyclization reaction of propargylic amines with CO2 into 2-oxazolidinones under mild conditions (60 °C, atmospheric CO2). 1H NMR studies unveiled that WYU-11 and 1,1,3,3-tetramethylguanidine (TMG) can synergistically activate the propargylic amine substrate and promote the reaction. Importantly, WYU-11 represents a rare example of noble metal-free heterogeneous catalyst that can catalyze the cyclization of CO2 with propargylic amines. In addition, by virtue of the excellent water stability and luminescence properties, WYU-11 shows excellent detection performance for sulfathiazole (STZ) and ornidazole (ODZ) in water. Investigation reveals that the coexistence of photoinduced electron transfer and internal filtering effect could reasonably explain the luminescence quenching of WYU-11 by the antibiotics.
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Affiliation(s)
- Xin Zhao
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, P.R. China
| | - Bing-Bing Qin
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, P.R. China
| | - Tao He
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, P.R. China
| | - Hai-Ping Wang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, P.R. China
| | - Jiewei Liu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, P.R. China
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3
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Rao ZX, Chen PB, Xu J, Wang Q, Tang HT, Liang Y, Pan YM. Direct Conversion of CO 2 in Lime Kiln Waste Gas Catalyzed by a Copper-Based N-heterocyclic Carbene Porous Polymer. CHEMSUSCHEM 2023; 16:e202300170. [PMID: 36828776 DOI: 10.1002/cssc.202300170] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Revised: 02/24/2023] [Indexed: 06/10/2023]
Abstract
Industrial waste gas is one of the major sources of atmospheric CO2 , yet the direct conversion of the low concentrations of CO2 in waste gases into high value-added chemicals have been a great challenge. Herein, a copper-based N-heterocyclic carbene porous polymer catalyst (Cu@NHC-1) for the direct conversion of low concentration CO2 into oxazolidinones was successfully fabricated via a facile copolymerization process followed by the complexation with Cu(OAc)2 . A continuous flow device was designed to deliver a continuous and stable carbon source for the reaction. Due to the triple synergistic effect of its porous structure, nitrogen activation sites and catalytic Cu center, Cu@NHC-1 shows highly efficient and selective adsorption, activation, and conversion of the low concentration CO2 (30 vol%). Its practical application potential is demonstrated by the ability to successfully convert the CO2 in lime kiln waste gas into oxazolidinones in satisfactory yields under mild conditions.
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Affiliation(s)
- Zhi-Xiu Rao
- School of Life and Environmental Sciences, Guilin University of Electronic Technology, Guilin, 541004, Guangxi, P. R. China
| | - Pei-Bo Chen
- School of Life and Environmental Sciences, Guilin University of Electronic Technology, Guilin, 541004, Guangxi, P. R. China
| | - Jin Xu
- School of Life and Environmental Sciences, Guilin University of Electronic Technology, Guilin, 541004, Guangxi, P. R. China
| | - Qing Wang
- School of Life and Environmental Sciences, Guilin University of Electronic Technology, Guilin, 541004, Guangxi, P. R. China
| | - Hai-Tao Tang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences of, Guangxi Normal University, Guilin, 541004, Guangxi, P. R. China
| | - Ying Liang
- School of Life and Environmental Sciences, Guilin University of Electronic Technology, Guilin, 541004, Guangxi, P. R. China
| | - Ying-Ming Pan
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences of, Guangxi Normal University, Guilin, 541004, Guangxi, P. R. China
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Zhou Z, Liu X, Ma JG, Cheng P. MOF-Incorporated Binuclear N-Heterocyclic Carbene-Cobalt Catalyst for Efficient Conversion of CO 2 to Formamides. CHEMSUSCHEM 2022; 15:e202201386. [PMID: 35959848 DOI: 10.1002/cssc.202201386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 08/10/2022] [Indexed: 06/15/2023]
Abstract
Environmental problem caused by carbon emission is of widespread concern. Involving CO2 as C1 resource into chemical synthesis is one of the most attractive ways for carbon recycling. Herein, the first example of host-guest composites featuring metal-organic framework (MOF)-encapsulated binuclear N-heterocyclic carbene (NHC) complex, Co2 @MIL101, was developed with the molecularly dispersed [Co(IPr)Br]2 (μ-Br)2 (Co2 ) loading in the cage of MIL-101(Cr) via a "ligand-in-dimer-trap" strategy, which was comprehensively investigated through various techniques including synchrotron X-ray absorption, electron microscopy, X-ray diffraction, solid-state nuclear magnetic resonance spectroscopy, and others. The noble-metal-free double-sites catalyst Co2 @MIL101 exhibited promising stability, activity, efficiency, reusability, and substrate adaptability for converting CO2 into various formamides with amines and hydrosilanes and achieved the best performance for one of the most useful formamides, N-methyl-N-phenylformamide (MFA), among the recyclable catalysts at ambient conditions, providing a reliable approach to successfully unify the advantages of both homo- and heterogeneous catalysts. Density functional theory calculations were applied to illustrate the superior activity of the binuclear NHC complex center as double-sites catalyst toward the activation of CO2 .
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Affiliation(s)
- Zhenzhen Zhou
- Department of Chemistry and Key Laboratory of Advanced, Energy Material Chemistry (MOE), Haihe Laboratory of Sustainable Chemical Transformations (Tianjin), Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University, Tianjin, 300071, P. R. China
| | - Xiao Liu
- Department of Chemistry and Key Laboratory of Advanced, Energy Material Chemistry (MOE), Haihe Laboratory of Sustainable Chemical Transformations (Tianjin), Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University, Tianjin, 300071, P. R. China
| | - Jian-Gong Ma
- Department of Chemistry and Key Laboratory of Advanced, Energy Material Chemistry (MOE), Haihe Laboratory of Sustainable Chemical Transformations (Tianjin), Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University, Tianjin, 300071, P. R. China
| | - Peng Cheng
- Department of Chemistry and Key Laboratory of Advanced, Energy Material Chemistry (MOE), Haihe Laboratory of Sustainable Chemical Transformations (Tianjin), Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University, Tianjin, 300071, P. R. China
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Zhao K, Zhang LX, Xu H, Liu YF, Tang B, Bie LJ. Single-ion chelation strategy for synthesis of monodisperse Pd nanoparticles anchored in MOF-808 for highly efficient hydrogenation and cascade reactions. NANOSCALE 2022; 14:10980-10991. [PMID: 35861189 DOI: 10.1039/d2nr02765h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Ultrafine Pd nanoparticles are prepared using a single-ion precursor on a MOF-808 carrier. The ligand 2,3-pyrazinedicarboxylic acid (Pza) is dispersed in porous MOF-808 via grafting on formic acid sites, and thus Pd2+ ions are chelated by Pza to form a new single-ion precursor Pd@MOF-808-Pza. Then a Pd-nano@MOF-808-Pza catalyst is prepared by direct reduction of this precursor using NaBH4. Material characterization reveals the homogeneous dispersion of 3-6 nm Pd nanoparticles within the MOF-808 matrix. Pd-nano@MOF-808-Pza exhibits excellent catalytic activity in the hydrogenation of unsaturated nitrogen-containing compounds, and other typical reactions, such as the Knoevenagel condensation, Suzuki/Heck cross-coupling, and hydrogen tandem reactions. In addition, density functional theory (DFT) calculations are carried out to elucidate the chelation of Pd2+ ions by Pza on MOF-808 and propose mechanisms of hydrogenation reactions. This work provides an effective reduction catalyst, and more importantly, a single-ion chelation strategy for design and synthesis of metal supported catalysts.
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Affiliation(s)
- Ke Zhao
- School of Materials Science and Engineering, Tianjin Key Lab for Photoelectric Materials and Devices, Key Laboratory of Display Materials and Photoelectric Devices (Ministry of Education), National Demonstration Center for Experimental Function Materials Education, Tianjin University of Technology, Tianjin 300384, China.
- MOE Key Laboratory of Cluster Science, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, China
| | - Le-Xi Zhang
- School of Materials Science and Engineering, Tianjin Key Lab for Photoelectric Materials and Devices, Key Laboratory of Display Materials and Photoelectric Devices (Ministry of Education), National Demonstration Center for Experimental Function Materials Education, Tianjin University of Technology, Tianjin 300384, China.
| | - Heng Xu
- School of Materials Science and Engineering, Tianjin Key Lab for Photoelectric Materials and Devices, Key Laboratory of Display Materials and Photoelectric Devices (Ministry of Education), National Demonstration Center for Experimental Function Materials Education, Tianjin University of Technology, Tianjin 300384, China.
| | - Yi-Fei Liu
- School of Materials Science and Engineering, Tianjin Key Lab for Photoelectric Materials and Devices, Key Laboratory of Display Materials and Photoelectric Devices (Ministry of Education), National Demonstration Center for Experimental Function Materials Education, Tianjin University of Technology, Tianjin 300384, China.
| | - Bo Tang
- School of Materials Science and Engineering, Tianjin Key Lab for Photoelectric Materials and Devices, Key Laboratory of Display Materials and Photoelectric Devices (Ministry of Education), National Demonstration Center for Experimental Function Materials Education, Tianjin University of Technology, Tianjin 300384, China.
| | - Li-Jian Bie
- School of Materials Science and Engineering, Tianjin Key Lab for Photoelectric Materials and Devices, Key Laboratory of Display Materials and Photoelectric Devices (Ministry of Education), National Demonstration Center for Experimental Function Materials Education, Tianjin University of Technology, Tianjin 300384, China.
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Gu AL, Zhang YX, Wu ZL, Cui HY, Hu TD, Zhao B. Highly Efficient Conversion of Propargylic Alcohols and Propargylic Amines with CO 2 Activated by Noble-Metal-Free Catalyst Cu 2 O@ZIF-8. Angew Chem Int Ed Engl 2022; 61:e202114817. [PMID: 35014760 DOI: 10.1002/anie.202114817] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Indexed: 01/05/2023]
Abstract
The cyclization reactions of propargylic alcohols and propargylic amines with CO2 are important in industrial applications, but it was a great challenge that non-noble-metal catalysts catalyzed both reactions under mild conditions. Herein, the catalyst Cu2 O@ZIF-8 was prepared by encapsulating Cu2 O nanoparticles into robust ZIF-8, and it can effectively catalyze the cyclization of both propargylic alcohols and propargylic amines with CO2 into valuable α-alkylidene cyclic carbonates and oxazolidinones with turnover numbers (TONs) of 12.1 and 19.6, which can be recycled at least five times. The mechanisms were further uncovered by NMR, FTIR, 13 C isotope-labeling experiments and DFT calculations, in which Cu2 O and DBU can synergistically activate the C≡C bond and the hydroxy/amino group of substrates. Importantly, it is the first example of a noble-metal-free catalyst that can catalyze both propargylic alcohols and propargylic amines with CO2 simultaneously.
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Affiliation(s)
- Ai-Ling Gu
- Department of Chemistry, Key Laboratory of Advanced Energy Material Chemistry, MOE, Renewable Energy Conversion and Storage Center (RECAST), Nankai University, Tianjin, 300071, China.,College of Chemistry and Environmental Science, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, Hebei University, Baoding, 071002, China
| | - Ya-Xin Zhang
- Department of Chemistry, Key Laboratory of Advanced Energy Material Chemistry, MOE, Renewable Energy Conversion and Storage Center (RECAST), Nankai University, Tianjin, 300071, China.,College of Chemistry and Environmental Science, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, Hebei University, Baoding, 071002, China
| | - Zhi-Lei Wu
- Department of Chemistry, Key Laboratory of Advanced Energy Material Chemistry, MOE, Renewable Energy Conversion and Storage Center (RECAST), Nankai University, Tianjin, 300071, China.,College of Chemistry and Environmental Science, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, Hebei University, Baoding, 071002, China
| | - Hui-Ya Cui
- Department of Chemistry, Key Laboratory of Advanced Energy Material Chemistry, MOE, Renewable Energy Conversion and Storage Center (RECAST), Nankai University, Tianjin, 300071, China.,College of Chemistry and Environmental Science, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, Hebei University, Baoding, 071002, China
| | - Tian-Ding Hu
- Institute of Theoretical Chemistry, Jilin University, Changchun, 130023, China
| | - Bin Zhao
- Department of Chemistry, Key Laboratory of Advanced Energy Material Chemistry, MOE, Renewable Energy Conversion and Storage Center (RECAST), Nankai University, Tianjin, 300071, China
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7
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Tian XR, Jiang XL, Hou SL, Jiao ZH, Han J, Zhao B. Selectively Regulating Lewis Acid-Base Sites in Metal-Organic Frameworks for Achieving Turn-On/Off of the Catalytic Activity in Different CO 2 Reactions. Angew Chem Int Ed Engl 2022; 61:e202200123. [PMID: 35199447 DOI: 10.1002/anie.202200123] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Indexed: 12/16/2022]
Abstract
Regulating Lewis acid-base sites in catalysts to investigate their influence in the chemical fixation of CO2 is significant but challenging. A metal-organic framework (MOF) with open metal Co sites, {(NH2 Me2 )[Co3 (μ3 -OH)(BTB)2 (H2 O)]⋅9 H2 O⋅5 DMF}n (1), was obtained and the results of the catalytic investigation show that 1 can catalyze cycloaddition of CO2 and aziridines to give 99 % yield. The efficiency of the cyclization of CO2 with propargyl amines is only 32 %. To improve the catalytic ability of 1, ligand XN with Lewis base sites was introduced into 1 and coordinated with the open Co sites, resulting in a decrease of the Lewis acid sites and an increase in the Lewis base sites in a related MOF 2 ({(NH2 Me2 )[Co3 (μ3 -OH)(NHMe2 )(BTB)2 (XN)]⋅8 H2 O⋅4 DMF}n ). Selective regulation of the type of active centers causes the yield of oxazolidinones to be enhanced by about 2.4 times, suggesting that this strategy can turn on/off the catalytic activity for different reactions. The catalytic results from 2 treated with acid solution support this conclusion. This work illuminates a MOF-construction strategy that produces efficient catalysts for CO2 conversion.
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Affiliation(s)
- Xue-Rui Tian
- Department of Chemistry, Key Laboratory of Advanced Energy Material Chemistry, MOE, Renewable Energy Conversion and Storage Center (RECAST), Nankai University, Tianjin, 300071, China
| | - Xiao-Lei Jiang
- Department of Chemistry, Key Laboratory of Advanced Energy Material Chemistry, MOE, Renewable Energy Conversion and Storage Center (RECAST), Nankai University, Tianjin, 300071, China
| | - Sheng-Li Hou
- Department of Chemistry, Key Laboratory of Advanced Energy Material Chemistry, MOE, Renewable Energy Conversion and Storage Center (RECAST), Nankai University, Tianjin, 300071, China
| | - Zhuo-Hao Jiao
- Department of Chemistry, Key Laboratory of Advanced Energy Material Chemistry, MOE, Renewable Energy Conversion and Storage Center (RECAST), Nankai University, Tianjin, 300071, China
| | - Jie Han
- Department of Chemistry, Key Laboratory of Advanced Energy Material Chemistry, MOE, Renewable Energy Conversion and Storage Center (RECAST), Nankai University, Tianjin, 300071, China
| | - Bin Zhao
- Department of Chemistry, Key Laboratory of Advanced Energy Material Chemistry, MOE, Renewable Energy Conversion and Storage Center (RECAST), Nankai University, Tianjin, 300071, China
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Tian XR, Jiang XL, Hou SL, Han J, Zhao B, Jiao ZH. Selectively Regulating Lewis Acid‐Base Sites in Metal‐Organic Frameworks for Achieving Turn‐on/off the Catalytic Activity in Different CO2 Reactions. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202200123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
| | | | | | - Jie Han
- Nankai University Department of Chemistry CHINA
| | - Bin Zhao
- Nankai University Department of Chemistry weijin road 94# 300071 tianjin city CHINA
| | - Zhuo-Hao Jiao
- Nankai University College of Chemistry College of Chemistry Tianjin City CHINA
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Zhao B, Gu AL, Wu ZL, Zhang YX, Cui HY, Hu TD. Highly Efficient Conversion of Both Propargylic Alcohols and Propargylic Amines with CO2 Activated by Noble‐Metal‐Free Catalyst Cu2O@ZIF‐8. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202114817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Bin Zhao
- Nankai University Department of Chemistry weijin road 94# 300071 tianjin city CHINA
| | - Ai-Ling Gu
- Nankai University Department of Chemistry Department of Chemistry, Key Laboratory of Advanced Energy Material Chemistry, M 300071 Tianjin CHINA
| | - Zhi-Lei Wu
- Nankai University Department of Chemistry Department of Chemistry, Key Laboratory of Advanced Energy Material Chemistry, M 300071 Tianjin CHINA
| | - Ya-Xin Zhang
- Nankai University Department of Chemistry Department of Chemistry, Key Laboratory of Advanced Energy Material Chemistry, M 300071 Tianjin CHINA
| | - Hui-Ya Cui
- Nankai University Department of Chemistry Department of Chemistry, Key Laboratory of Advanced Energy Material Chemistry, M 300071 Tianjin CHINA
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