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Xu C, Long Q, Zhong S, Wang W, Guo J, Yang J, Wang X, Dai L. Insights into the Synergistic Catalytic Effect of TiO 2 Supported V-W Oxides for Selective C-H Bond Oxidation of Cyclohexane to KA Oil. Chemistry 2024; 30:e202402780. [PMID: 39256166 DOI: 10.1002/chem.202402780] [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: 07/24/2024] [Revised: 09/09/2024] [Accepted: 09/09/2024] [Indexed: 09/12/2024]
Abstract
It is urgent to develop an efficient and stable non-noble metal catalyst for selective C-H bond oxidation of cyclohexane. Herein, a series of V-W oxides supported on TiO2 catalysts (V-W/TiO2) were fabricated. The V-W/TiO2 catalysts exhibited much higher catalytic activity for the selective oxidation of cyclohexane to KA oil, compared to that of V/TiO2 and W/TiO2 catalysts. The good distribution of active metals and the synergistic effect were responsible for the enhanced catalytic activity. H2-TPR results disclosed that the presence of V in V-W/TiO2 affected the reducibility of W6+ species, and XPS verified that an electronic interaction was formed between them. Such results led to good catalytic reusability of V-W/TiO2 catalyst during the reactions, and no obvious activity loss was found after six runs. The reaction mechanism was investigated, and the results verified that hydroxyl radicals generated from H2O2 homolysis were the main active oxidative species. Theoretical study revealed that V dopant could regulate electronic structure of adjacent O atom, facilitating the adsorption of cyclohexane, and lower energy was needed for the rate-limiting step over V-W/TiO2 during the whole oxidation reaction. This work developed an efficient V-W/TiO2 catalyst for the selective oxidation of cyclohexane via a synergistic effect.
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Affiliation(s)
- Cai Xu
- Institute of Zhejiang University -, Quzhou, Quzhou, 324000, PR China
- Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310058, PR China
| | - Quanfu Long
- Institute of Zhejiang University -, Quzhou, Quzhou, 324000, PR China
- Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310058, PR China
| | - Shandi Zhong
- Institute of Zhejiang University -, Quzhou, Quzhou, 324000, PR China
- Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310058, PR China
| | - Wenjin Wang
- Institute of Zhejiang University -, Quzhou, Quzhou, 324000, PR China
| | - Jia Guo
- Institute of Zhejiang University -, Quzhou, Quzhou, 324000, PR China
- Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310058, PR China
| | - Jianhai Yang
- Institute of Zhejiang University -, Quzhou, Quzhou, 324000, PR China
- Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310058, PR China
| | - Xiaozhong Wang
- Institute of Zhejiang University -, Quzhou, Quzhou, 324000, PR China
- Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310058, PR China
| | - Liyan Dai
- Institute of Zhejiang University -, Quzhou, Quzhou, 324000, PR China
- Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310058, PR China
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Jin HG, Zhao PC, Qian Y, Xiao JD, Chao ZS, Jiang HL. Metal-organic frameworks for organic transformations by photocatalysis and photothermal catalysis. Chem Soc Rev 2024; 53:9378-9418. [PMID: 39163028 DOI: 10.1039/d4cs00095a] [Citation(s) in RCA: 25] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/21/2024]
Abstract
Organic transformation by light-driven catalysis, especially, photocatalysis and photothermal catalysis, denoted as photo(thermal) catalysis, is an efficient, green, and economical route to produce value-added compounds. In recent years, owing to their diverse structure types, tunable pore sizes, and abundant active sites, metal-organic framework (MOF)-based photo(thermal) catalysis has attracted broad interest in organic transformations. In this review, we provide a comprehensive and systematic overview of MOF-based photo(thermal) catalysis for organic transformations. First, the general mechanisms, unique advantages, and strategies to improve the performance of MOFs in photo(thermal) catalysis are discussed. Then, outstanding examples of organic transformations over MOF-based photo(thermal) catalysis are introduced according to the reaction type. In addition, several representative advanced characterization techniques used for revealing the charge reaction kinetics and reaction intermediates of MOF-based organic transformations by photo(thermal) catalysis are presented. Finally, the prospects and challenges in this field are proposed. This review aims to inspire the rational design and development of MOF-based materials with improved performance in organic transformations by photocatalysis and photothermal catalysis.
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Affiliation(s)
- Hong-Guang Jin
- School of Materials Science and Engineering, Changsha University of Science & Technology, Changsha, 410114, China.
| | - Peng-Cheng Zhao
- School of Materials Science and Engineering, Changsha University of Science & Technology, Changsha, 410114, China.
| | - Yunyang Qian
- Hefei National Research Center for Physical Sciences at the Microscale, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui, 230026, China.
| | - Juan-Ding Xiao
- Institutes of Physical Science and Information Technology, Anhui University, Hefei, Anhui, 230601, P. R. China.
| | - Zi-Sheng Chao
- School of Materials Science and Engineering, Changsha University of Science & Technology, Changsha, 410114, China.
| | - Hai-Long Jiang
- Hefei National Research Center for Physical Sciences at the Microscale, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui, 230026, China.
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Krishan K, Swapna B, Chourasia AK, Sharma CS, Sudarsanam P. Functionalized Metal-Free Carbon Nanosphere Catalyst for the Selective C-N Bond Formation under Open-Air Conditions. ACS OMEGA 2024; 9:35676-35685. [PMID: 39184471 PMCID: PMC11339823 DOI: 10.1021/acsomega.4c03987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Revised: 07/25/2024] [Accepted: 07/30/2024] [Indexed: 08/27/2024]
Abstract
A versatile shape-controlled carbon nanomaterial that can efficiently catalyze the selective C-N coupling reactions under metal-free and open-air conditions was developed by applying N-doping and KOH activation strategies in candle soot (ANCS). The TEM and elemental mapping results showed the formation of sphere-shaped carbon particles as well as the uniform distribution of nitrogen species in the carbon framework. KOH activation enhanced the specific surface area of carbon, whereas N-doping enriched the electron-deficient nature by introducing functional N-based pyrrolic/graphitic structures in the carbon framework. The synergistic effect of N-doping and KOH activation significantly improved the catalytic efficiency of the carbon catalyst (ANCS), giving a 96% conversion of o-phenylenediamine (OPD) with a good selectivity to 2-phenylbenzimidazole (97%). In contrast, the pristine carbon exhibited very low activity (48% conversion of the OPD and 36% selectivity to 2-phenylbenzimidazole). Besides, the ANCS nanomaterial provided a facile catalytic approach for the homo- and cross-C-N condensation of various aromatic amines and diamines to produce diverse functional imines and benzimidazoles at mild conditions. This work provided promising insights into developing advanced, metal-free carbon-based catalysts for selective C-N coupling reactions to produce valuable drug motifs.
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Affiliation(s)
- Kumar Krishan
- Department
of Chemistry, Indian Institute of Technology
Hyderabad, Kandi, Telangana 502284, India
| | - Bhattu Swapna
- Department
of Chemistry, Indian Institute of Technology
Hyderabad, Kandi, Telangana 502284, India
| | - Ankit Kumar Chourasia
- Department
of Chemical Engineering, Indian Institute
of Technology Hyderabad, Kandi, Telangana 502284, India
| | - Chandra S. Sharma
- Department
of Chemical Engineering, Indian Institute
of Technology Hyderabad, Kandi, Telangana 502284, India
| | - Putla Sudarsanam
- Department
of Chemistry, Indian Institute of Technology
Hyderabad, Kandi, Telangana 502284, India
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Chutimasakul T, Tirdtrakool W, Na Nakhonpanom P, Kreethatorn H, Jaruwatee P, Bunchuay T, Tantirungrotechai J. Efficient Synthesis of Imines by Oxidative Coupling Catalyzed by Ce‐Mn Oxide Microspheres. ChemistrySelect 2022. [DOI: 10.1002/slct.202203028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Threeraphat Chutimasakul
- Department of Chemistry Faculty of Science Mahidol University Rama 6 Road Bangkok 10400 Thailand
- Nuclear Technology Research and Development Center Thailand Institute of Nuclear Technology (Public Organization) Nakhon Nayok 26120 Thailand
| | - Warinda Tirdtrakool
- Department of Chemistry Faculty of Science Mahidol University Rama 6 Road Bangkok 10400 Thailand
| | - Pakamon Na Nakhonpanom
- Department of Chemistry Faculty of Science Mahidol University Rama 6 Road Bangkok 10400 Thailand
| | - Hemmarat Kreethatorn
- Department of Chemistry Faculty of Science Mahidol University Rama 6 Road Bangkok 10400 Thailand
| | - Pattamaporn Jaruwatee
- Department of Chemistry Faculty of Science Mahidol University Rama 6 Road Bangkok 10400 Thailand
| | - Thanthapatra Bunchuay
- Department of Chemistry Faculty of Science Mahidol University Rama 6 Road Bangkok 10400 Thailand
- Center of Excellence for Innovation in Chemistry, Faculty of Science Mahidol University Rama 6 Road Bangkok 10400 Thailand
| | - Jonggol Tantirungrotechai
- Department of Chemistry Faculty of Science Mahidol University Rama 6 Road Bangkok 10400 Thailand
- Center of Excellence for Innovation in Chemistry, Faculty of Science Mahidol University Rama 6 Road Bangkok 10400 Thailand
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