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Zhang Y, Feng XL, Ni JY, Fu B, Shen HM, She YB. Efficient Inhibition of Deep Conversion of Partial Oxidation Products in C-H Bonds' Functionalization Utilizing O 2 via Relay Catalysis of Dual Metalloporphyrins on Surface of Hybrid Silica Possessing Capacity for Product Exclusion. Biomimetics (Basel) 2024; 9:272. [PMID: 38786482 PMCID: PMC11117990 DOI: 10.3390/biomimetics9050272] [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: 03/04/2024] [Revised: 04/10/2024] [Accepted: 04/19/2024] [Indexed: 05/25/2024] Open
Abstract
To inhibit the deep conversion of partial oxidation products (POX-products) in C-H bonds' functionalization utilizing O2, 5-(4-(chloromethyl)phenyl)-10,15,20-tris(perfluorophenyl)porphyrin cobalt(II) and 5-(4-(chloromethyl)phenyl)-10,15,20-tris(perfluorophenyl)porphyrin copper(II) were immobilized on the surface of hybrid silica to conduct relay catalysis on the surface. Fluorocarbons with low polarity and heterogeneous catalysis were devised to decrease the convenient accessibility of polar POX-products to catalytic centers on the lower polar surface. Relay catalysis between Co and Cu was designed to utilize the oxidation intermediates alkyl hydroperoxides to transform more C-H bonds. Systematic characterizations were conducted to investigate the structure of catalytic materials and confirm their successful syntheses. Applied to C-H bond oxidation, not only deep conversion of POX-products was inhibited but also substrate conversion and POX-product selectivity were improved simultaneously. For cyclohexane oxidation, conversion was improved from 3.87% to 5.27% with selectivity from 84.8% to 92.3%, which was mainly attributed to the relay catalysis on the surface excluding products. The effects of the catalytic materials, product exclusion, relay catalysis, kinetic study, substrate scope, and reaction mechanism were also investigated. To our knowledge, a practical and novel strategy was presented to inhibit the deep conversion of POX-products and to achieve efficient and accurate oxidative functionalization of hydrocarbons. Also, a valuable protocol was provided to avoid over-reaction in other chemical transformations requiring high selectivity.
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Affiliation(s)
- Yu Zhang
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China; (Y.Z.); (J.-Y.N.); (B.F.)
| | - Xiao-Ling Feng
- Hangzhou Copiore Chemical Technology Co., Ltd., Hangzhou 310012, China;
| | - Jia-Ye Ni
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China; (Y.Z.); (J.-Y.N.); (B.F.)
| | - Bo Fu
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China; (Y.Z.); (J.-Y.N.); (B.F.)
| | - Hai-Min Shen
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China; (Y.Z.); (J.-Y.N.); (B.F.)
| | - Yuan-Bin She
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China; (Y.Z.); (J.-Y.N.); (B.F.)
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Zhou XY, Fu B, Jin WD, Wang X, Wang KK, Wang M, She YB, Shen HM. Efficient and Selective Oxygenation of Cycloalkanes and Alkyl Aromatics with Oxygen through Synergistic Catalysis of Bimetallic Active Centers in Two-Dimensional Metal-Organic Frameworks Based on Metalloporphyrins. Biomimetics (Basel) 2023; 8:325. [PMID: 37504212 PMCID: PMC10807029 DOI: 10.3390/biomimetics8030325] [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: 06/25/2023] [Revised: 07/08/2023] [Accepted: 07/18/2023] [Indexed: 07/29/2023] Open
Abstract
Confined catalytic realms and synergistic catalysis sites were constructed using bimetallic active centers in two-dimensional metal-organic frameworks (MOFs) to achieve highly selective oxygenation of cycloalkanes and alkyl aromatics with oxygen towards partly oxygenated products. Every necessary characterization was carried out for all the two-dimensional MOFs. The selective oxygenation of cycloalkanes and alkyl aromatics with oxygen was accomplished with exceptional catalytic performance using two-dimensional MOF Co-TCPPNi as a catalyst. Employing Co-TCPPNi as a catalyst, both the conversion and selectivity were improved for all the hydrocarbons investigated. Less disordered autoxidation at mild conditions, inhibited free-radical diffusion by confined catalytic realms, and synergistic C-H bond oxygenation catalyzed by second metal center Ni employing oxygenation intermediate R-OOH as oxidant were the factors for the satisfying result of Co-TCPPNi as a catalyst. When homogeneous metalloporphyrin T(4-COOCH3)PPCo was replaced by Co-TCPPNi, the conversion in cyclohexane oxygenation was enhanced from 4.4% to 5.6%, and the selectivity of partly oxygenated products increased from 85.4% to 92.9%. The synergistic catalytic mechanisms were studied using EPR research, and a catalysis model was obtained for the oxygenation of C-H bonds with O2. This research offered a novel and essential reference for both the efficient and selective oxygenation of C-H bonds and other key chemical reactions involving free radicals.
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Affiliation(s)
| | | | | | | | | | | | | | - Hai-Min Shen
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China; (X.-Y.Z.); (B.F.); (W.-D.J.); (X.W.); (K.-K.W.); (M.W.); (Y.-B.S.)
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Jiang X, Zhou X, Xu W, He L, Zhou Y, Hua Q, Wu G, Li D, Dong R. Mechanistic investigation of the influence of defects on armchair unburned carbon for PbCl 2 adsorption. Sci Prog 2023; 106:368504231172613. [PMID: 37198909 PMCID: PMC10450311 DOI: 10.1177/00368504231172613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
As the largest consumer of coal energy, coal-fired power plants emit large amounts of PbCl2 each year, which is of wide concern due to its high toxicity, global migration, and accumulation. Unburned carbon is considered a promising adsorbent for effective PbCl2 removal. However, there is a problem that the current unburned carbon model cannot show the structure of carbon defects on the actual unburned carbon surface. Therefore, it is important to construct defective unburned carbon models with practical significance. In addition, the adsorption mechanism of PbCl2 by an unburned model is not studied deeply enough and the reaction mechanism is not clear yet. This has seriously affected the development of effective adsorbents. To reveal the adsorption mechanism of PbCl2 on unburned carbon, the adsorption mechanism of PbCl2 on defective unburned carbon surfaces was analyzed by using the density flooding theory to investigate the adsorption process of PbCl2 on different unburned carbon models. This will provide theoretical guidance for the design and development of adsorbents for the removal of PbCl2 from coal-fired power plants.
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Affiliation(s)
- Xinjun Jiang
- CHN Energy Taizhou Power Generation Co., Ltd, Taizhou, China
| | - Xiaowei Zhou
- CHN Energy Taizhou Power Generation Co., Ltd, Taizhou, China
| | - Wei Xu
- CHN Energy Taizhou Power Generation Co., Ltd, Taizhou, China
| | - Lijun He
- CHN Energy Taizhou Power Generation Co., Ltd, Taizhou, China
| | - Yaming Zhou
- CHN Energy Taizhou Power Generation Co., Ltd, Taizhou, China
| | - Qiaojian Hua
- CHN Energy Taizhou Power Generation Co., Ltd, Taizhou, China
| | - Guoxing Wu
- CHN Energy Taizhou Power Generation Co., Ltd, Taizhou, China
| | - Dong Li
- CHN Energy Taizhou Power Generation Co., Ltd, Taizhou, China
| | - Ruixin Dong
- Shandong Shangao Power Technology Co., Ltd, Jinan, China
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Guo AB, Qin JW, Wang KK, Liu QP, Wu HK, Wang M, Shen HM, She YB. Synergetic catalytic oxidation of C-H bonds in cycloalkanes and alkyl aromatics by dimetallic active sites in 3D metalloporphyrinic MOFs employing O2 as oxidant with increased conversion and unconsumed selectivity. MOLECULAR CATALYSIS 2023. [DOI: 10.1016/j.mcat.2022.112853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Li K, Li H, Wei S, Liu Y, Li Y, Zhang R, Liu R. High performance BaCO3-CeO2 composite catalyst for solvent-free selective oxidation of cyclohexane with molecular oxygen. MOLECULAR CATALYSIS 2023. [DOI: 10.1016/j.mcat.2022.112851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Ni JY, Cong SZ, Ning L, Wang M, Shen HM, She YB. Binary catalytic systems constructed by porphyrin cobalts(II) with confining nano-region and Zn(OAc)2 for oxygenation of cycloalkanes with O2 in relay mode. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Chen S, Li Y, Wang Z, Jin Y, Liu R, Li X. Poly(ionic liquid)s hollow spheres nanoreactor for enhanced cyclohexane catalytic oxidation. J Catal 2022. [DOI: 10.1016/j.jcat.2022.05.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Shen HM, Guo AB, Zhang Y, Liu QP, Qin JW, She YB. Relay catalysis of hydrocarbon oxidation using O2 in the confining domain of 3D metalloporphyrin-based metal-organic frameworks with bimetallic catalytic centers. Chem Eng Sci 2022. [DOI: 10.1016/j.ces.2022.117825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Wang K, Li SS, Wang J, He ZH, Wang D, Zhang RR, Wang W, Yang Y, Liu ZT. Photothermal oxidation of cyclohexane over CoLaOx/WO3 Z-scheme composites with p-n heterojunction in solvent-free conditions. Catal Today 2022. [DOI: 10.1016/j.cattod.2022.04.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Li J, Sun H, Wang S, Dong Y, Liu S. Selective oxidation of alcohols by graphene-like carbon with electrophilic oxygen and integrated pyridinic nitrogen active sites. NANOSCALE 2021; 13:12979-12990. [PMID: 34477781 DOI: 10.1039/d1nr03157k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The selective oxidations of alcohols into corresponding aldehydes or ketones are essential reactions for organic synthesis. The development of facile, green and cost-effective protocols to accomplish selective oxidation is highly attractive. Here, we present the selective oxidation of alcohols using peroxymonosulfate (PMS) oxidants with N-doped graphene-like carbon (NG) synthesized via a metal-free approach without producing a large amount of hazardous wastes. In the tested selective oxidation reaction, over 96% of benzyl alcohol (BzOH) was converted into benzaldehyde (BzH) with high selectivity under mild conditions. The synthesized NG catalyst contains abundant electrophilic oxygen species, serving as the major active sites for the generation of reactive radicals from PMS to enable the selective oxidation of BzOH in the radical pathway. Besides, non-radical oxidation of BzOH occurs via the electron transfer through the surface coordinated complex, dominantly upon the N species. Particularly, the configuration of integrated pyridinic N is possible to create active domains for BzOH oxidation with activated PMS. This work opens a new avenue to convert metal-free raw materials into effectively functionalized carbon materials, coupled with their potential applications in the selective oxidation of alcohols.
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Affiliation(s)
- Jiaquan Li
- WA School of Mines: Minerals, Energy and Chemical Engineering, Curtin University, Perth, WA 6102, Australia.
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Abutaleb A, Ali MA. A comprehensive and updated review of studies on the oxidation of cyclohexane to produce ketone-alcohol (KA) oil. REV CHEM ENG 2021. [DOI: 10.1515/revce-2020-0059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Oxidation of cyclohexane is an essential chemical reaction for the industrial manufacture of cyclohexanol and cyclohexanone. These two compounds, together known as ketone–alcohol (KA) oil, are the main feedstock for nylon 6 and nylon 6,6 productions. Several types of catalysts and reaction conditions have been used for cyclohexane oxidation. This paper presents a thorough literature review of catalytic materials used for cyclohexane oxidation to produce KA oil using oxygen, air and other oxidizing agents as well as utilizing different solvents. This review covers research and development reported over the years 2014–2020. This review aims to comprehend the type of catalysts, solvents, oxidants and other reaction parameters used for the oxidation of cyclohexane. Three types of cyclohexane oxidation processes namely thermocatalytic, photocatalytic and microwave-assisted catalytic have been reported. The results of the review showed that metal and metal oxide loaded silica catalysts performed excellently and provided high selectivity of KA oil and cyclohexane conversion. The use of peroxides is not feasible due to their high price compared to air and oxygen. Gold nanoparticles supported on silica performed with high selectivity and good conversion. The use of hydrochloric acid as an additive was found very effective to enhance the photocatalytic oxidation of cyclohexane. Water on the catalyst surface enhanced the reactivity of the photocatalysts since it helps in the generation of hydroxyl radicals.
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Affiliation(s)
- Ahmed Abutaleb
- Chemical Engineering Department, College of Engineering , Jazan University , Gizan 45142 , Saudi Arabia
| | - Mohammad Ashraf Ali
- Chemical Engineering Department, College of Engineering , Jazan University , Gizan 45142 , Saudi Arabia
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A facile synthesis of nitrogen-doped bamboo-shaped carbon nanotubes by catalytic decomposition of 2-aminopyrimidine over Fe@MgO catalyst through chemical vapor deposition method. CHEMICAL PAPERS 2021. [DOI: 10.1007/s11696-020-01333-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Shen HM, Wang X, Guo AB, Zhang L, She YB. Catalytic oxidation of cycloalkanes by porphyrin cobalt(II) through efficient utilization of oxidation intermediates. J PORPHYR PHTHALOCYA 2020. [DOI: 10.1142/s1088424620500303] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The catalytic oxidation of cycloalkanes using molecular oxygen employing porphyrin cobalt(II) as catalyst was enhanced through use of cycloalkyl hydroperoxides, which are the primary intermediates in oxidation of cycloalkanes, as additional oxidants to further oxidize cycloalkanes in the presence of porphyrin copper(II), especially for cyclohexane, for which the selectivity was enhanced from 88.6 to 97.2% to the KA oil; at the same time, the conversion of cyclohexane was enhanced from 3.88 to 4.41%. The enhanced efficiency and selectivity were mainly attributed to the avoided autoxidation of cycloalkanes and efficient utilization of oxidation intermediate cycloalkyl hydroperoxides as additional oxidants instead of conventional thermal decomposition. In addition to cyclohexane, the protocol presented in this research is also very applicable in the oxidation of other cycloalkanes such as cyclooctane, cycloheptane and cyclopentane, and can serve as a applicable and efficient strategy to boost the conversion and selectivity simultaneously in oxidation of alkanes. This work also is a very important reference for the extensive application of metalloporphyrins in catalysis chemistry.
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Affiliation(s)
- Hai M. Shen
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Xiong Wang
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - A. Bing Guo
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Long Zhang
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Yuan B. She
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
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Selective Liquid-Phase Oxidation of Toluene with Molecular Oxygen Catalyzed by Mn3O4 Nanoparticles Immobilized on CNTs under Solvent-Free Conditions. Catalysts 2020. [DOI: 10.3390/catal10060623] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The catalytic performance of Mn3O4 supported on carbon nanotubes (CNTs) in the liquid-phase oxidation of toluene to benzyl alcohol and benzaldehyde was studied. The supported catalysts were characterized by X-ray diffraction (XRD), Raman spectroscopy, scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), N2 adsorption–desorption isotherms and ICP-MS. The results demonstrate that Mn3O4 nanoparticles loaded on CNTs performed better compared with pristine Mn3O4 or CNTs. The main reason for the increased catalytic activity is the dispersion and loading of Mn3O4 in CNTs. By optimizing the reaction temperature, reaction time, catalyst quality, oxygen flow rate and initiator dosage, the optimum reaction conditions were obtained. Using tert-butyl hydroperoxide (TBHP) as the initiator and oxygen as the oxidant, the toluene conversion rate was as high as 24.63%, and benzyl alcohol and benzaldehyde selectivity was 90.49%. The good stability of the catalyst was confirmed by repeating the experiment for four cycles and observing no significant changes in its performance.
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