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Li S, Ali S, Zuhra Z, Shen H, Qiu J, Zeng Y, Zheng K, Wang X, Xie G, Ding S. Cobalt Encapsulated in Nitrogen-Doped Graphite-like Shells as Efficient Catalyst for Selective Oxidation of Arylalkanes. Molecules 2023; 29:65. [PMID: 38202648 PMCID: PMC10779642 DOI: 10.3390/molecules29010065] [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: 10/12/2023] [Revised: 12/13/2023] [Accepted: 12/19/2023] [Indexed: 01/12/2024] Open
Abstract
Selective oxidation of ethylbenzene to acetophenne is an important process in both organic synthesis and fine chemicals diligence. The cobalt-based catalysts combined with nitrogen-doped carbon have received great attention in ethylbenzene (EB) oxidation. Here, a series of cobalt catalysts with metallic cobalt nanoparticles (NPs) encapsulated in nitrogen-doped graphite-like carbon shells (Co@NC) have been constructed through the one-pot pyrolysis method in the presence of different nitrogen-containing compounds (urea, dicyandiamide and melamine), and their catalytic performance in solvent-free oxidation of EB with tert-butyl hydrogen peroxide (TBHP) as an oxidant was investigated. Under optimized conditions, the UCo@NC (urea as nitrogen source) could afford 95.2% conversion of EB and 96.0% selectivity to acetophenone, and the substrate scalability was remarkable. Kinetics show that UCo@NC contributes to EB oxidation with an apparent activation energy of 32.3 kJ/mol. The synergistic effect between metallic cobalt NPs and nitrogen-doped graphite-like carbon layers was obviously observed and, especially, the graphitic N species plays a key role during the oxidation reaction. The structure-performance relationship illustrated that EB oxidation was a free radical reaction through 1-phenylethanol as an intermediate, and the possible reaction mechanistic has been proposed.
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Affiliation(s)
- Shuo Li
- School of Materials Science and Engineering, Dongguan University of Technology, Dongguan 523808, China; (S.L.); (H.S.); (K.Z.)
- School of Chemistry, Xi’an Key Laboratory of Sustainable Energy Materials Chemistry, Xi’an Jiaotong University, Xi’an 710049, China;
| | - Shafqat Ali
- School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, China; (S.A.); (Z.Z.); (J.Q.); (Y.Z.)
| | - Zareen Zuhra
- School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, China; (S.A.); (Z.Z.); (J.Q.); (Y.Z.)
| | - Huahuai Shen
- School of Materials Science and Engineering, Dongguan University of Technology, Dongguan 523808, China; (S.L.); (H.S.); (K.Z.)
| | - Jiaxiang Qiu
- School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, China; (S.A.); (Z.Z.); (J.Q.); (Y.Z.)
| | - Yanbin Zeng
- School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, China; (S.A.); (Z.Z.); (J.Q.); (Y.Z.)
| | - Ke Zheng
- School of Materials Science and Engineering, Dongguan University of Technology, Dongguan 523808, China; (S.L.); (H.S.); (K.Z.)
| | - Xiaoxia Wang
- School of Materials Science and Engineering, Dongguan University of Technology, Dongguan 523808, China; (S.L.); (H.S.); (K.Z.)
| | - Guanqun Xie
- School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, China; (S.A.); (Z.Z.); (J.Q.); (Y.Z.)
| | - Shujiang Ding
- School of Chemistry, Xi’an Key Laboratory of Sustainable Energy Materials Chemistry, Xi’an Jiaotong University, Xi’an 710049, China;
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Liu Z, Sun S, Yang F, Liu H, Sun Y, Ta N, Zhang G, Che S, Li Y. Synergistic Effect of Fe/Cu-N-C Dual Single-Atom Catalyst for C-H Bond Oxidation. J Colloid Interface Sci 2022; 632:237-248. [DOI: 10.1016/j.jcis.2022.11.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 10/28/2022] [Accepted: 11/02/2022] [Indexed: 11/09/2022]
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Qin L, Lu W, Wu Z, Zhou W. Catalyst Performance of the Calcined Products of CoAl Layered Double Hydroxide in the Aerobic Oxidation of Ethylbenzene. Catal Letters 2022. [DOI: 10.1007/s10562-022-04117-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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Yi C, Zhang L, Xiang G, Chen X, Cheng N, Liu Z. N-rich porous carbon catalysts with huge surface areas from bean curd activated by K 2CO 3. NEW J CHEM 2021. [DOI: 10.1039/d1nj02548a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
N-rich porous carbon catalysts with huge surface areas were fabricated from bean curd activated by K2CO3 for the selective oxidation of ethylbenzene to acetophenone.
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Affiliation(s)
- Chengfeng Yi
- Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, Hunan, China
| | - Lushuang Zhang
- Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, Hunan, China
| | - Ganghua Xiang
- Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, Hunan, China
| | - Xiaoyan Chen
- Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, Hunan, China
| | - Na Cheng
- Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, Hunan, China
| | - Zhigang Liu
- Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, Hunan, China
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Gupta SSR, Lakshmi Kantam M. Finely dispersed CuO on nitrogen-doped carbon hollow nanospheres for selective oxidation of sp 3 C–H bonds. NEW J CHEM 2021. [DOI: 10.1039/d1nj02406j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Selective oxidation of sp3 C–H bonds has been demonstrated using a novel nanocomposite, CuO/N-C-HNSs, as the catalyst.
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Affiliation(s)
- Shyam Sunder R. Gupta
- Department of Chemical Engineering, Institute of Chemical Technology, Matunga (E), Mumbai – 400019, Maharashtra, India
| | - Mannepalli Lakshmi Kantam
- Department of Chemical Engineering, Institute of Chemical Technology, Matunga (E), Mumbai – 400019, Maharashtra, India
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Xia M, Huang H, Zhang X, Wei QH, Xie Z. Single-atom cobalt-fused biomolecule-derived nitrogen-doped carbon nanosheets for selective oxidation reactions. Phys Chem Chem Phys 2021; 23:14276-14283. [PMID: 34159984 DOI: 10.1039/d1cp01113h] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Non-noble metal single-atom catalysts hold great promise in selective oxidation reactions, although the progress is still unsatisfactory because of the synthesis challenge and the lack of mechanistic interpretations. Herein, we develop a biomolecule-based strategy to synthesize isolated Co single atom site catalysts by one-step pyrolysis of guanosine and Co precursors. Due to the abundant hydrogen bonding and π-π interaction of guanosine, the as-synthesized Co-N-C catalysts present a hierarchical porous two-dimensional (2D) nanostructure with an ultrahigh specific surface area, large pore volume, and high density of cobalt single atoms. Aberration-corrected electron microscopy and X-ray photoelectron spectroscopy reveal that Co species are present as isolated single sites and stabilized by nitrogen-doped carbon nanosheets. These characteristics make Co-GS-900 suitable as an efficient catalyst for selective oxidation of aromatic alkanes. For oxidation of ethylbenzene, Co-GS-900 exhibits a superior performance f with 91% conversion and 98% selectivity of acetophenone.
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Affiliation(s)
- Miao Xia
- State Key Laboratory of Photocatalysis on Energy and Environment, Fujian Provincial Key Laboratory of Electrochemical Energy Storage Materials, Fuzhou University, 2 Xueyuan Road, Fuzhou 350016, China.
| | - Haitao Huang
- State Key Laboratory of Photocatalysis on Energy and Environment, Fujian Provincial Key Laboratory of Electrochemical Energy Storage Materials, Fuzhou University, 2 Xueyuan Road, Fuzhou 350016, China.
| | - Xuefei Zhang
- State Key Laboratory of Photocatalysis on Energy and Environment, Fujian Provincial Key Laboratory of Electrochemical Energy Storage Materials, Fuzhou University, 2 Xueyuan Road, Fuzhou 350016, China.
| | - Qiao-Hua Wei
- State Key Laboratory of Photocatalysis on Energy and Environment, Fujian Provincial Key Laboratory of Electrochemical Energy Storage Materials, Fuzhou University, 2 Xueyuan Road, Fuzhou 350016, China.
| | - Zailai Xie
- State Key Laboratory of Photocatalysis on Energy and Environment, Fujian Provincial Key Laboratory of Electrochemical Energy Storage Materials, Fuzhou University, 2 Xueyuan Road, Fuzhou 350016, China.
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Shen HM, Qi B, Hu MY, Liu L, Ye HL, She YB. Selective Solvent-Free and Additive-Free Oxidation of Primary Benzylic C–H Bonds with O2 Catalyzed by the Combination of Metalloporphyrin with N-Hydroxyphthalimide. Catal Letters 2020. [DOI: 10.1007/s10562-020-03214-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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