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Ma C, Yang C, Zhuo H, Chen C, Lu K, Wang F, Shi Z, Xiao H, Song M, Jiang G. Tailored Cl - Ligation on Supported Pt Catalysts for Selective Primary C-H Bond Oxidation. J Am Chem Soc 2023; 145:10890-10898. [PMID: 37155826 DOI: 10.1021/jacs.3c03257] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
It is challenging to achieve high selectivity over Pt-metal-oxide catalysts widely used in many selective oxidation reactions because Pt is prone to over-oxidize substrates. Herein, our sound strategy for enhancing the selectivity is to saturate the under-coordinated single Pt atoms with Cl- ligands. In this system, the weak electronic metal-support interactions between Pt atoms and reduced TiO2 cause electron extraction from Pt to Cl- ligands, resulting in strong Pt-Cl bonds. Therefore, the two-coordinate single Pt atoms adopt a four-coordinate configuration and thus inactivated, thereby inhibiting the over-oxidation of toluene over Pt sites. The selectivity for the primary C-H bond oxidation products of toluene was increased from 50.1 to 100%. Meanwhile, the abundant active Ti3+ sites were stabilized in reduced TiO2 by Pt atoms, leading to a rising yield of the primary C-H oxidation products of 249.8 mmol gcat-1. The reported strategy holds great promise for selective oxidation with enhanced selectivity.
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Affiliation(s)
- Chunyan Ma
- Key Laboratory of Environmental Nanotechnology and Health Effects, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Chenggong Yang
- Key Laboratory of Environmental Nanotechnology and Health Effects, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hongying Zhuo
- Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Cheng Chen
- Key Laboratory of Environmental Nanotechnology and Health Effects, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ke Lu
- Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Fengbang Wang
- Key Laboratory of Environmental Nanotechnology and Health Effects, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhifu Shi
- Chinainstru & Quantumtech (Hefei) Co., Ltd, Hefei 230031, China
| | - Hai Xiao
- Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Maoyong Song
- Key Laboratory of Environmental Nanotechnology and Health Effects, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Guibin Jiang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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2
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Yuan L, Xu C, Zhang S, Yu M, Wang X, Chen Y, Dai L. Role of oxygen vacancy in spinel (FeCoNiCrMn) 3O 4 high entropy oxides prepared via two different methods for the selective CH bond oxidation of p-chlorotoluene. J Colloid Interface Sci 2023; 640:359-371. [PMID: 36867932 DOI: 10.1016/j.jcis.2023.02.128] [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: 11/10/2022] [Revised: 02/15/2023] [Accepted: 02/24/2023] [Indexed: 03/03/2023]
Abstract
The selective CH bond oxidation of aromatic hydrocarbon is an interesting but challenging task, it is desirable to develop efficient heterogeneous non-noble metal catalyst for this reaction. Herein, two kinds of spinel (FeCoNiCrMn)3O4 high entropy oxides were fabricated via two different methods (i.e., c-FeCoNiCrMn, prepared by a co-precipitation method, and m-FeCoNiCrMn, prepared by physically mixing method). Different from traditional environmentally-unfriendly Co/Mn/Br system, the prepared catalysts were employed for the selective CH bond oxidation of p-chlorotoluene to p-chlorobenzaldehyde in a green approach. Compared to m-FeCoNiCrMn, c-FeCoNiCrMn have smaller particles size and larger specific surface area, which were related to the enhanced catalytic activity. More importantly, characterization results disclosed that abundant oxygen vacancies were formed over c-FeCoNiCrMn. Such a result facilitated the adsorption of p-chlorotoluene on the catalyst surface and promoted the formation of *ClPhCH2O intermediate as well as the desired p-chlorobenzaldehyde, as revealed by DFT (Density functional theory) calculations. Besides, scavenger tests and EPR (Electron paramagnetic resonance) results indicated that hydroxyl radical derived from H2O2 homolysis was the main active oxidative species for this reaction. This work revealed the role of oxygen vacancy in spinel high entropy oxide and also demonstrated its promising application for the selective CH bond oxidation in an environmentally-benign approach.
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Affiliation(s)
- Lei Yuan
- 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 310027, PR China
| | - 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 310027, PR China.
| | - Shaoyong Zhang
- Key Laboratory of Vector Biology and Pathogen Control of Zhejiang Province, College of Life Science, Huzhou University, Huzhou 313000, PR China
| | - Mincheng Yu
- 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 310027, 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 310027, PR China
| | - Yingqi Chen
- 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 310027, 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 310027, PR China.
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3
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Selective aerobic oxidation of toluene to benzaldehyde catalyzed by covalently anchored N-hydroxyphthalimide and cobaltous ions. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2021.111440] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Abstract
Thanks to the well-recognized role of benzaldehyde in industry, nowadays the research of new and sustainable approaches to selectively synthesize such an interesting product is receiving great attention from the chemists’ community. In this paper, a V-based catalytic biphasic system is adopted to perform toluene oxidation to benzaldehyde. Importantly, to pursue sustainability, organic solvents have been avoided, so toluene is used as substrate and co-solvent, together with water. Also, the use of hydrophobic ionic liquids has been explored. To perform oxidation, NH4VO3 catalyst, H2O2, and a safe and inexpensive co-catalyst are used. Among the tested co-catalysts, KF and O2 were found to be the best choice, to guarantee good yields, in mild reaction conditions. In fact, with such a sustainable method, up to 30% of benzaldehyde can be obtained at 60 °C and, more interestingly, the oxidative system can be recharged, raising-up the yield. The entire process results highly selective, since no traces of benzyl alcohol or benzoic acid are detected. Hence, it constitutes a very appealing synthetic route, even suitable to be easily scaled-up at an industrial level.
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Deng C, Xu M, Dong Z, Li L, Yang J, Guo X, Peng L, Xue N, Zhu Y, Ding W. Exclusively catalytic oxidation of toluene to benzaldehyde in an O/W emulsion stabilized by hexadecylphosphate acid terminated mixed-oxide nanoparticles. CHINESE JOURNAL OF CATALYSIS 2020. [DOI: 10.1016/s1872-2067(19)63417-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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6
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Wu X, Zhu L, Zhu C, Wang C, Li Q. Catalytic Transformation of Bio-oil to Benzaldehyde and Benzoic Acid: An Approach for the Production of High-value Aromatic Bio-chemicals. CURRENT GREEN CHEMISTRY 2019. [DOI: 10.2174/2213346106666190830114619] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Benzaldehyde and benzoic acid are high-value aromatic chemicals and important intermediates
in chemical industry, and the catalytic conversion of biomass-based sources to these aromatic
chemicals is of great significance in both academic and industrial fields. This work demonstrated that
bio-oil was directionally converted into benzaldehyde and benzoic acid by three-step process under
atmospheric pressure and moderate temperatures. The process included the catalytic cracking of biooil
into aromatics over 1% Ga/HZSM-5 catalyst, followed by the dealkylation of heavier alkylaromatics
to toluene over Re/HY catalyst and the liquid-phase oxidation of toluene-rich aromatics to the targeted
chemicals over CoCl2/NHPI (CoCl2/N-Hydroxyphthalimide) catalyst. The production of benzaldehyde
and benzoic acid from the bio-oil-derived aromatics, with the overall selectivity of 86.8%, was
achieved using CoCl2/NHPI catalyst at 100 °C. Furthermore, adding a small amount of methanol into
the feed would efficiently suppress the coke formation, and thus, enhance the yield of aromatics. Potentially,
the novel synthesis route offers a green way for the production of higher value-added aromatic
chemicals using renewable and environmentally friendly biomass-based sources.
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Affiliation(s)
- Xiaoping Wu
- Department of Chemical Physics, Key Laboratory of Urban Pollutant Conversion, Chinese Academy of Sciences, Anhui Key Laboratory of Biomass Clean Energy, University of Science & Technology of China, Hefei 230026, China
| | - Lijuan Zhu
- Department of Chemical Physics, Key Laboratory of Urban Pollutant Conversion, Chinese Academy of Sciences, Anhui Key Laboratory of Biomass Clean Energy, University of Science & Technology of China, Hefei 230026, China
| | - Changhui Zhu
- Key Laboratory of Renewable Energy and Gas Hydrate, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China
| | - Chenguang Wang
- Key Laboratory of Renewable Energy and Gas Hydrate, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China
| | - Quanxin Li
- Department of Chemical Physics, Key Laboratory of Urban Pollutant Conversion, Chinese Academy of Sciences, Anhui Key Laboratory of Biomass Clean Energy, University of Science & Technology of China, Hefei 230026, China
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Xu C, Wang X, Chen Y, Dai L. Synergistic effect between Cu–Cr bimetallic oxides supported on g-C3N4 for the selective oxidation of toluene to benzaldehyde. Catal Sci Technol 2019. [DOI: 10.1039/c9cy00743a] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Supported Cu–Cr/g-C3N4 catalysts were prepared via an in situ heating treatment method for the selective oxidation of toluene to benzaldehyde.
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Affiliation(s)
- Cai Xu
- Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology
- College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Xiaozhong Wang
- Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology
- College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Yingqi Chen
- Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology
- College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Liyan Dai
- Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology
- College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou 310027
- China
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8
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Nawab M, Barot S, Bandyopadhyay R. Solvent-free selective oxidation of toluene over metal-doped MCM-22. NEW J CHEM 2019. [DOI: 10.1039/c8nj06247a] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The synthesis of MCM-22, subsequent metal doping, and physicochemical characterization of the products are reported. The solvent-free catalytic oxidation of toluene using hydrogen peroxide is explored, and the reaction parameters are optimized. A possible reaction mechanism is also described.
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Affiliation(s)
- Maaz Nawab
- Department of Science, School of Technology
- Pandit Deendayal Petroleum University
- Gandhinagar
- India
| | - Sunita Barot
- Department of Science, School of Technology
- Pandit Deendayal Petroleum University
- Gandhinagar
- India
| | - Rajib Bandyopadhyay
- Department of Science, School of Technology
- Pandit Deendayal Petroleum University
- Gandhinagar
- India
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9
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The synergistic effect of benzyl benzoate on the selective oxidation of toluene to benzaldehyde. Chem Eng Res Des 2019. [DOI: 10.1016/j.cherd.2018.10.019] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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10
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Designing of a New Heterogeneous Polymer Supported Naphthyl-Azo Iron Catalyst for the Selective Oxidation of Substituted Methyl Benzenes. J Inorg Organomet Polym Mater 2018. [DOI: 10.1007/s10904-018-0785-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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11
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Zhang YH, Fan MH, Chang R, Li QX. Production of Benzoic Acid through Catalytic Transformation of Renewable Lignocellulosic Biomass. CHINESE J CHEM PHYS 2017. [DOI: 10.1063/1674-0068/30/cjcp1703047] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Affiliation(s)
- Yi-heng Zhang
- Department of Chemical Physics, Key Laboratory of Urban Pollutant Conversion, Chinese Academy of Sciences, Anhui Key Laboratory of Biomass Clean Energy, University of Science and Technology of China, Hefei 230026, China
| | - Ming-hui Fan
- Anhui Key Laboratory of Tobacco Chemistry, China Tobacco Anhui Industrial, Co., Ltd., Hefei 230088, China
| | - Rui Chang
- Department of Chemical Physics, Key Laboratory of Urban Pollutant Conversion, Chinese Academy of Sciences, Anhui Key Laboratory of Biomass Clean Energy, University of Science and Technology of China, Hefei 230026, China
| | - Quan-xin Li
- Department of Chemical Physics, Key Laboratory of Urban Pollutant Conversion, Chinese Academy of Sciences, Anhui Key Laboratory of Biomass Clean Energy, University of Science and Technology of China, Hefei 230026, China
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12
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Gaster E, Kozuch S, Pappo D. Selective Aerobic Oxidation of Methylarenes to Benzaldehydes Catalyzed by N
-Hydroxyphthalimide and Cobalt(II) Acetate in Hexafluoropropan-2-ol. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201702511] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Eden Gaster
- Department of Chemistry; Ben-Gurion University of the Negev; Beer Sheva 84105 Israel
| | - Sebastian Kozuch
- Department of Chemistry; Ben-Gurion University of the Negev; Beer Sheva 84105 Israel
| | - Doron Pappo
- Department of Chemistry; Ben-Gurion University of the Negev; Beer Sheva 84105 Israel
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13
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Gaster E, Kozuch S, Pappo D. Selective Aerobic Oxidation of Methylarenes to Benzaldehydes Catalyzed by N
-Hydroxyphthalimide and Cobalt(II) Acetate in Hexafluoropropan-2-ol. Angew Chem Int Ed Engl 2017; 56:5912-5915. [DOI: 10.1002/anie.201702511] [Citation(s) in RCA: 129] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2017] [Indexed: 01/02/2023]
Affiliation(s)
- Eden Gaster
- Department of Chemistry; Ben-Gurion University of the Negev; Beer Sheva 84105 Israel
| | - Sebastian Kozuch
- Department of Chemistry; Ben-Gurion University of the Negev; Beer Sheva 84105 Israel
| | - Doron Pappo
- Department of Chemistry; Ben-Gurion University of the Negev; Beer Sheva 84105 Israel
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14
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Xia H, Liu Z, Xu Y, Zuo J, Qin Z. Highly efficient V-Mo-Fe-O catalysts for selective oxidation of toluene to benzaldehyde. CATAL COMMUN 2016. [DOI: 10.1016/j.catcom.2016.08.008] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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15
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Yuan H, Fang X, Ma Q, Mao J, Chen K, Chen Z, Li H. New mechanistic insight into the aerobic oxidation of methylaromatic compounds catalyzed by Co–Mn–Br and its applications. J Catal 2016. [DOI: 10.1016/j.jcat.2016.04.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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16
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The Effect of Water on the Oxidation of Toluene Catalyzed by Molybdenum Manganese Complex Oxide. Catal Letters 2016. [DOI: 10.1007/s10562-016-1780-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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