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Chaudhary S, Pan Q, Wu Y, Bibi Z, Li X, Jia Q, Sun Y. The Efficient and Environmentally Friendly Chlorination of Arene, Alcohol, Halobenzene, and Peroxide Catalyzed by Fe-Ba Binary Oxides Using Hydrochloric Acid as Chlorine Source and Aqueous H 2O 2 as Oxidant. Molecules 2024; 29:5451. [PMID: 39598840 PMCID: PMC11597577 DOI: 10.3390/molecules29225451] [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: 10/23/2024] [Revised: 11/10/2024] [Accepted: 11/16/2024] [Indexed: 11/29/2024] Open
Abstract
A series of Fe-Ba mixed oxides, including a pure Fe-containing sample as a reference, have been synthesized via a sol-gel process using Fe3+ or Fe2+ salts and BaSO4 as raw materials, with Pluronic P123 serving as a template. These oxides have been thoroughly characterized and subsequently utilized as catalysts for the chlorination of various organic molecules. Commercial hydrochloric acid, known for its relative safety, and environmentally friendly aqueous hydrogen peroxide were employed as the chlorine source and oxidant, respectively. The pure Fe-containing catalyst displays excellent thermal stability between 600 and 800 °C and exhibited moderate to high conversions in the chlorination of toluene, benzene, and tert-butyl hydroperoxide, with remarkable ortho-selectivity in chlorination of toluene. The combination of Fe3+ salt with BaSO4 in the sol-gel process results in a Fe-Ba mixed oxide catalyst composed of BaO2, BaFe4O7, and Fe2O3, significantly enhancing the chlorination activity compared to that displayed by the pure Fe catalyst. Notably, the chlorination of tert-butyl hydroperoxide (TBHP) does not require additional oxidants such as H2O2, and involves both electrophilic substitution and nucleophilic addition. Notably, the chlorination of bromobenzene yields chlorobenzene as the sole product, a transformation that has not been previously reported. Overall, this catalytic chlorination system holds promise for advancing the chlorination industry and enhancing pharmaceutical production.
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Affiliation(s)
- Sidra Chaudhary
- Department of Applied Chemistry, School of Chemistry, Xi’an Jiaotong University, No. 28, Xianning West Road, Xi’an 710049, China; (S.C.); (Q.P.); (Y.W.); (Z.B.); (X.L.); (Q.J.)
| | - Qin Pan
- Department of Applied Chemistry, School of Chemistry, Xi’an Jiaotong University, No. 28, Xianning West Road, Xi’an 710049, China; (S.C.); (Q.P.); (Y.W.); (Z.B.); (X.L.); (Q.J.)
| | - Yong Wu
- Department of Applied Chemistry, School of Chemistry, Xi’an Jiaotong University, No. 28, Xianning West Road, Xi’an 710049, China; (S.C.); (Q.P.); (Y.W.); (Z.B.); (X.L.); (Q.J.)
- Xi’an Biomass Green Catalysis and Advanced Valorization International Science and Technology Cooperation Base, No. 28, Xianning West Road, Xi’an 710049, China
| | - Zainab Bibi
- Department of Applied Chemistry, School of Chemistry, Xi’an Jiaotong University, No. 28, Xianning West Road, Xi’an 710049, China; (S.C.); (Q.P.); (Y.W.); (Z.B.); (X.L.); (Q.J.)
| | - Xiaoyong Li
- Department of Applied Chemistry, School of Chemistry, Xi’an Jiaotong University, No. 28, Xianning West Road, Xi’an 710049, China; (S.C.); (Q.P.); (Y.W.); (Z.B.); (X.L.); (Q.J.)
- Xi’an Biomass Green Catalysis and Advanced Valorization International Science and Technology Cooperation Base, No. 28, Xianning West Road, Xi’an 710049, China
| | - Qinxiang Jia
- Department of Applied Chemistry, School of Chemistry, Xi’an Jiaotong University, No. 28, Xianning West Road, Xi’an 710049, China; (S.C.); (Q.P.); (Y.W.); (Z.B.); (X.L.); (Q.J.)
- Xi’an Biomass Green Catalysis and Advanced Valorization International Science and Technology Cooperation Base, No. 28, Xianning West Road, Xi’an 710049, China
| | - Yang Sun
- Department of Applied Chemistry, School of Chemistry, Xi’an Jiaotong University, No. 28, Xianning West Road, Xi’an 710049, China; (S.C.); (Q.P.); (Y.W.); (Z.B.); (X.L.); (Q.J.)
- Xi’an Biomass Green Catalysis and Advanced Valorization International Science and Technology Cooperation Base, No. 28, Xianning West Road, Xi’an 710049, China
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Lin X, Ren Y, Zhuang H, Ren G, Zhang Y, Xi Y. Supported Ni Catalysts: Simple Vapor Deposition Preparation Method and Improved Catalytic Performance for Oxidative Dehydrogenation of Ethane. ACS OMEGA 2023; 8:33737-33744. [PMID: 37744781 PMCID: PMC10515178 DOI: 10.1021/acsomega.3c04000] [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: 06/09/2023] [Accepted: 08/25/2023] [Indexed: 09/26/2023]
Abstract
Developing new methods of catalyst preparation is one of the most important tasks in the field of catalysis. A simple one-tube vapor deposition (VD) is provided in this paper for preparing the supported Ni catalyst. Ni(acac)2 was used as the Ni precursor. This preparation method was successfully applied to three types of catalytic supports, that is, Al2O3 and zeolites 5A and Hβ. Varying Ni contents of less than 8 wt % can be obtained by employing different conditions. The Ni content, depending on different deposition conditions, was preliminarily explored. The catalytic performance for oxidative dehydrogenation of ethane (ODHE) was tested for the prepared Ni catalysts by the VD method. Several cases of catalytic tests showed that for the same Ni content, the VD-prepared Ni catalyst presented better performance for ODHE than the one prepared by a traditional impregnation method. Besides the improvement in catalytic performance, several advantages of our VD preparation method for catalysis are discussed.
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Affiliation(s)
- Xufeng Lin
- College
of Chemistry and Chemical Engineering, China
University of Petroleum (East China), Qingdao 266580, P. R. China
- State
Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), Qingdao 266580, P. R. China
| | - Yanjun Ren
- College
of Chemistry and Chemical Engineering, China
University of Petroleum (East China), Qingdao 266580, P. R. China
| | - Huimin Zhuang
- Shandong
Yellow Sea Institute of Science and Technology Innovation, Rizhao 276808, P. R. China
| | - Guozeng Ren
- College
of Chemistry and Chemical Engineering, China
University of Petroleum (East China), Qingdao 266580, P. R. China
| | - Yixuan Zhang
- College
of Chemistry and Chemical Engineering, China
University of Petroleum (East China), Qingdao 266580, P. R. China
| | - Yanyan Xi
- State
Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), Qingdao 266580, P. R. China
- Advanced
Chemical Engineering and Energy Materials Research Center, China University of Petroleum (East China), Qingdao 266580, P. R. China
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