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Yuan EH, Han R, Deng JY, Zhou W, Zhou A. Acceleration of Zeolite Crystallization: Current Status, Mechanisms, and Perspectives. ACS APPLIED MATERIALS & INTERFACES 2024; 16:29521-29546. [PMID: 38830265 DOI: 10.1021/acsami.4c01774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2024]
Abstract
Zeolites are important classes of crystalline materials and possess well-defined channels and cages with molecular dimensions. They have been extensively employed as heterogeneous catalysts and gas adsorbents due to their relatively large specific surface areas, high pore volumes, compositional flexibility, definite acidity, and hydrothermal stability. The zeolite synthesis normally undergoes high-temperature hydrothermal treatments with a relatively long crystallization time, which exhibits low synthesis efficiency and high energy consumption. Various strategies, e.g., modulation of the synthesis gel compositions, employment of special silica/aluminum sources, addition of seeds, fluoride, hydroxyl (·OH) free radical initiators, and organic additives, regulation of the crystallization conditions, development of new approaches, etc., have been developed to overcome these obstacles. And, these achievements make prominent contributions to the topic of acceleration of the zeolite crystallization and promote the fundamental understanding of the zeolite formation mechanism. However, there is a lack of the comprehensive summary and analysis on them. Herein, we provide an overview of the recent achievements, highlight the significant progress in the past decades on the developments of novel and remarkable strategies to accelerate the crystallization of zeolites, and basically divide them into three main types, i.e., chemical methods, physical methods, and the derived new approaches. The principles/acceleration mechanisms, effectiveness, versatility, and degree of reality for the corresponding approaches are thoroughly discussed and summarized. Finally, the rational design of the prospective strategies for the fast synthesis of zeolites is commented on and envisioned. The information gathered here is expected to provide solid guidance for developing a more effective route to improve the zeolite crystallization and obtain the functional zeolite-based materials with more shortened durations and lowered cost and further promote their applications.
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Affiliation(s)
- En-Hui Yuan
- College of Chemistry and Chemical Engineering, Xi'an University of Science and Technology, Xi'an 710054, China
| | - Rui Han
- College of Chemistry and Chemical Engineering, Xi'an University of Science and Technology, Xi'an 710054, China
| | - Jun-Yu Deng
- College of Chemistry and Chemical Engineering, Xi'an University of Science and Technology, Xi'an 710054, China
| | - Wenwu Zhou
- College of Chemistry and Chemical Engineering, Xi'an University of Science and Technology, Xi'an 710054, China
| | - Anning Zhou
- College of Chemistry and Chemical Engineering, Xi'an University of Science and Technology, Xi'an 710054, China
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Yang J, Liu S, Liu Y, Zhou L, Wen H, Wei H, Shen R, Wu X, Jiang J, Li B. Review and perspectives on TS-1 catalyzed propylene epoxidation. iScience 2024; 27:109064. [PMID: 38375219 PMCID: PMC10875142 DOI: 10.1016/j.isci.2024.109064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2024] Open
Abstract
Titanium silicate zeolite (TS-1) is widely used in the research on selective oxidations of organic substrates by H2O2. Compared with the chlorohydrin process and the hydroperoxidation process, the TS-1 catalyzed hydroperoxide epoxidation of propylene oxide (HPPO) has advantages in terms of by-products and environmental friendliness. This article reviews the latest progress in propylene epoxidation catalyzed by TS-1, including the HPPO process and gas phase epoxidation. The preparation and modification of TS-1 for green and sustainable production are summarized, including the use of low-cost feedstocks, the development of synthetic routes, strategies to enhance mass transfer in TS-1 crystal and the enhancement of catalytic performance after modification. In particular, this article summarizes the catalytic mechanisms and advanced characterization techniques for propylene epoxidation in recent years. Finally, the present situation, development prospect and challenge of propylene epoxidation catalyzed by TS-1 were prospected.
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Affiliation(s)
- Jimei Yang
- College of Chemistry, Zhengzhou University, 100 Science Road, Zhengzhou 450001, P.R. China
| | - Shuling Liu
- College of Chemistry, Zhengzhou University, 100 Science Road, Zhengzhou 450001, P.R. China
| | - Yanyan Liu
- College of Chemistry, Zhengzhou University, 100 Science Road, Zhengzhou 450001, P.R. China
- College of Science, Henan Agricultural University, 63 Nongye Road, Zhengzhou 450002, P.R. China
- Institute of Chemical Industry of Forest Products, CAF, National Engineering Lab for Biomass Chemical Utilization, Nanjing 210042, P.R. China
| | - Limin Zhou
- College of Chemistry, Zhengzhou University, 100 Science Road, Zhengzhou 450001, P.R. China
- Institute of Chemical Industry of Forest Products, CAF, National Engineering Lab for Biomass Chemical Utilization, Nanjing 210042, P.R. China
| | - Hao Wen
- College of Chemistry, Zhengzhou University, 100 Science Road, Zhengzhou 450001, P.R. China
| | - Huijuan Wei
- College of Chemistry, Zhengzhou University, 100 Science Road, Zhengzhou 450001, P.R. China
| | - Ruofan Shen
- College of Chemistry, Zhengzhou University, 100 Science Road, Zhengzhou 450001, P.R. China
| | - Xianli Wu
- College of Chemistry, Zhengzhou University, 100 Science Road, Zhengzhou 450001, P.R. China
| | - Jianchun Jiang
- Institute of Chemical Industry of Forest Products, CAF, National Engineering Lab for Biomass Chemical Utilization, Nanjing 210042, P.R. China
| | - Baojun Li
- College of Chemistry, Zhengzhou University, 100 Science Road, Zhengzhou 450001, P.R. China
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Wu R, Liu N, Dai C, Xu R, Wang N, Yu G, Chen B. Collaborative Purification of Tert-Butanol and N 2O over Fe/Co-Zeolite Catalysts. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:4902. [PMID: 36981811 PMCID: PMC10049020 DOI: 10.3390/ijerph20064902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 03/07/2023] [Accepted: 03/09/2023] [Indexed: 06/18/2023]
Abstract
N2O is a greenhouse gas and a candidate oxidant. Volatile organic pollutants (VOCs) have caused great harm to the atmospheric ecological environment. Developing the technique utilizing N2O as the oxidant to oxidize VOCs to realize the collaborative purification has significant importance and practical value for N2O emission control and VOC abatement. Therefore, the study of N2O catalytic oxidation of tert-butanol based on zeolite catalysts was carried out. A series of molecular sieves, including FER, MOR, ZSM-5, Y, and BEA, were selected as the catalyst objects, and the 1.5% wt Fe and Co were, respectively, loaded on the zeolite catalysts via the impregnation method. It was found that the catalytic performance of BEA was the best among the molecular sieves. Comparing the catalytic performance of Fe-BEA under different load gradients (0.25~2%), it was found that 1.5% Fe-BEA possessed the best catalytic activity. A series of characterization methods showed that Fe3+ content in 1.5% Fe-BEA was the highest, and more active sites formed to promote the catalytic reaction. The α-O in the reaction eventually oxidized tert-butanol to CO2 over the active site. The Co mainly existed in the form of Co2+ cations over Co-BEA samples; the 2% Co-BEA possessing higher amounts of Co2+ exhibited the highest activity among the prepared Co-BEA samples.
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Cheng Y, Xu W, Hou J, Kang P. Temperature-Dependent Electrosynthesis of C 2 Oxygenates from Oxalic Acid Using Gallium Tin Oxides. ACS Catal 2023. [DOI: 10.1021/acscatal.2c06120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2023]
Affiliation(s)
- Yingying Cheng
- School of Chemical Engineering and Technology, Tianjin University, 135 Yaguan Road, Tianjin 300350, China
| | - Wenjing Xu
- School of Chemical Engineering and Technology, Tianjin University, 135 Yaguan Road, Tianjin 300350, China
| | - Jing Hou
- School of Chemical Engineering and Technology, Tianjin University, 135 Yaguan Road, Tianjin 300350, China
| | - Peng Kang
- School of Chemical Engineering and Technology, Tianjin University, 135 Yaguan Road, Tianjin 300350, China
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Alkali and Alkaline Earth Metals (K, Ca, Sr) Promoted Cu/SiO2 Catalyst for Hydrogenation of Methyl Acetate to Ethanol. Catalysts 2023. [DOI: 10.3390/catal13020450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023] Open
Abstract
The advancing effects of various alkali and alkaline earth metals (inclusive of K, Ca, and Sr) modified Cu/SiO2 catalysts, prepared with a modified precipitation-gel method, were investigated for the production of ethanol via hydrogenation of methyl acetate. Our results showed that Sr-doped catalysts exhibited the best and most consistent results during catalytic tests. A series of techniques, including X-ray diffraction technique, Raman spectroscopy, N2 adsorption/desorption, N2O titration method, FTIR spectroscopy, and H2 temperature, programmed desorption and reduction (TPD and TPR), and X-ray Photoelectron Spectroscopy, which was used to check the detailed characterization of Sr modification in the catalyst and its structural impacts on the properties of the catalyst. These results demonstrated that the addition of 5%Sr could strengthen the intrinsic stability of the catalyst by formulating the appropriate ratio of Cu+/(Cu0 + Cu+) to facilitate catalytic outcome improvement. The addition of 5%Sr-30%Cu/SiO2 under the most favorable conditions, resulting in the peak conversion of MA (95%) and ethanol selectivity (96%), indicates its magnificent catalytic stabilizing effects. Furthermore, the best performing catalyst was compared and tested under various conditions (LHSV and temperatures) and a 300 h long life run.
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Suib SL, Přech J, Szaniawska E, Čejka J. Recent Advances in Tetra- (Ti, Sn, Zr, Hf) and Pentavalent (Nb, V, Ta) Metal-Substituted Molecular Sieve Catalysis. Chem Rev 2023; 123:877-917. [PMID: 36547404 DOI: 10.1021/acs.chemrev.2c00509] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Metal substitution of molecular sieve systems is a major driving force in developing novel catalytic processes to meet current demands of green chemistry concepts and to achieve sustainability in the chemical industry and in other aspects of our everyday life. The advantages of metal-substituted molecular sieves include high surface areas, molecular sieving effects, confinement effects, and active site and morphology variability and stability. The present review aims to comprehensively and critically assess recent advances in the area of tetra- (Ti, Sn, Zr, Hf) and pentavalent (V, Nb, Ta) metal-substituted molecular sieves, which are mainly characterized for their Lewis acidic active sites. Metal oxide molecular sieve materials with properties similar to those of zeolites and siliceous molecular sieve systems are also discussed, in addition to relevant studies on metal-organic frameworks (MOFs) and some composite MOF systems. In particular, this review focuses on (i) synthesis aspects determining active site accessibility and local environment; (ii) advances in active site characterization and, importantly, quantification; (iii) selective redox and isomerization reaction applications; and (iv) photoelectrocatalytic applications.
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Affiliation(s)
- Steven L Suib
- Departments of Chemistry and Chemical and Biomolecular Engineering, and Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269-3060, United States
| | - Jan Přech
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University in Prague, Hlavova 8, 128 43 Prague 2, Czech Republic
| | - Ewelina Szaniawska
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University in Prague, Hlavova 8, 128 43 Prague 2, Czech Republic
| | - Jiří Čejka
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University in Prague, Hlavova 8, 128 43 Prague 2, Czech Republic
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Wang B, Guo Y, Zhu J, Ma J, Qin Q. A review on titanosilicate-1 (TS-1) catalysts: Research progress of regulating titanium species. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2022.214931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Sekine Y, Sakai M, Matsukata M. Esterification of Acetic Acid by Flow-Type Membrane Reactor with AEI Zeolite Membrane. MEMBRANES 2023; 13:111. [PMID: 36676918 PMCID: PMC9864284 DOI: 10.3390/membranes13010111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 01/05/2023] [Accepted: 01/13/2023] [Indexed: 06/17/2023]
Abstract
AEI-type zeolite membrane for dehydration was prepared, and a flow-type membrane reactor for the esterification of acetic acid and ethanol by AEI membrane was developed. A synthesized AEI membrane had suitable molecular sieving property for gas separation (H2/i-butane and CO2/CH4) and pervaporation (H2O/acetic acid). AEI membrane showed H2O permeance of 6.2 × 10-7 mol m-2 s-1 Pa-1 with a separation factor of 67 at 363 K for the equimolar mixture of H2O/acetic acid. AEI membrane maintained stable performance under acidic conditions. The yield of ethyl acetate at 363 K in a flow-type membrane reactor with AEI membrane successfully exceeded the equilibrium of 69.1%, reaching 89.0%. The flow rate of feed solution strongly affected the conversion of acetic acid and the space-time yield (STY) of ethyl acetate. Due to the more significant proportion of water selectively removed from the reaction system at a lower feed flow rate, the thermodynamic equilibrium shifted significantly, resulting in higher conversions. In contrast, STY increased with increasing feed flow rate. Our flow-type membrane reactor exhibited a relatively large STY of 430 kg m-3 h-1 compared with the batch-type membrane reactor previously reported.
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Affiliation(s)
- Yuma Sekine
- Department of Applied Chemistry, Waseda University, 513 Wasedatsurumaki-cho, Shinjuku-ku, Tokyo 162-0041, Japan
| | - Motomu Sakai
- Research Organization for Nano & Life Innovation, Waseda University, 513 Wasedatsurumaki-cho, Shinjuku-ku, Tokyo 162-0041, Japan
| | - Masahiko Matsukata
- Department of Applied Chemistry, Waseda University, 513 Wasedatsurumaki-cho, Shinjuku-ku, Tokyo 162-0041, Japan
- Research Organization for Nano & Life Innovation, Waseda University, 513 Wasedatsurumaki-cho, Shinjuku-ku, Tokyo 162-0041, Japan
- Advanced Research Institute for Science and Engineering, Waseda University, 513 Wasedatsurumaki-cho, Shinjuku-ku, Tokyo 162-0041, Japan
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9
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Zhang H, Lan X, Cheng P. Advances in Hydroxyl Free Radical Assisted Synthesis of Zeolite. ACTA CHIMICA SINICA 2023. [DOI: 10.6023/a22100420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
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10
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Li L, Wang W, Huang J, Dun R, Lu B, Liu Y, Wu J, Yang S, Hua Z. Facile and template-free synthesis of robust, highly active and easily recyclable submicrometer-sized hierarchical TS-1 aggregates composed of ultra-small nanocrystallites (<50 nm). CrystEngComm 2023. [DOI: 10.1039/d3ce00127j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
Abstract
Submicrometer-sized hierarchical TS-1 aggregates were synthesized by freeze-drying of precursors and routine steam assisted crystallization. The catalysts exhibited easy isolation and high activity in the oxidative desulfurization of fuel oils.
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11
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Study on the epoxidation of olefins with H2O2 catalyzed by biquaternary ammonium phosphotungstic acid. Chin J Chem Eng 2022. [DOI: 10.1016/j.cjche.2022.11.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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12
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Luan H, Xu C, Wu Q, Xiao FS. Recent advances in the synthesis of TS-1 zeolite. Front Chem 2022; 10:1080554. [PMID: 36482939 PMCID: PMC9722971 DOI: 10.3389/fchem.2022.1080554] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Accepted: 11/09/2022] [Indexed: 08/27/2023] Open
Abstract
Heteroatomic zeolites as an important class of zeolites, have been widely applied in industrially catalytic processes due to their unique properties. As one of the most representative heteroatomic zeolites, titanosilicate zeolites have been extensively used in the selective oxidations of organic substrates with H2O2 such as cyclohexanone ammoximation, epoxidation of alkenes, and phenol hydroxylation. In this review, recent advances in the synthesis of TS-1 zeolite are briefly summarized, including use of low-cost raw materials (organic templates, silicon, and titanium sources), development of new synthesis routes (post-treatment synthesis, dry-gel conversion synthesis, solvent-free synthesis, and microwave-assisted synthesis), and new strategy for enhanced mass transfer in TS-1 crystals (synthesis of hierarchical and nanosized TS-1 zeolite). This review might help researchers to have a deep understanding on the synthesis of TS-1 zeolite and provide a new opportunity for the design and preparation of highly efficient TS-1 catalysts in the future.
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Affiliation(s)
| | | | - Qinming Wu
- Key Lab of Applied Chemistry of Zhejiang Province, Department of Chemistry, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, China
| | - Feng-Shou Xiao
- Key Lab of Applied Chemistry of Zhejiang Province, Department of Chemistry, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, China
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Xin C, Liang S, Hu J, Guo J, Cheng X, Shang W, Wei J, Zhang S, Liu W, Zhu C, Hou J, Shi Y. In-Situ Grafting of Single-Atomic Titanium-Nitrogen Moiety onto Carbon Nanostructures for Efficient Photovoltaic Devices. ACS APPLIED MATERIALS & INTERFACES 2022; 14:50849-50857. [PMID: 36321608 DOI: 10.1021/acsami.2c14214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Early transition metals offer promising orthogonal reactivity to catalytic processes promoted by late transition metals. Nevertheless, exploiting variable single-atomic configurations as reactive centers is hitherto not well documented owing to their oxophilic nature. Herein we report an in-situ grafting strategy that employs nitrogenated holey carbon nitrides as a scaffold and invokes the reasonably good match of temperature-dependent pyrolysis to stabilize an atomic titanium-nitrogen (Ti1N2OH) moiety onto the hierarchical porous carbon support (Ti1/NC-SAC). The Ti1/NC-SAC as the cathode in dye-sensitized solar cells assembly exhibited superior electrocatalytic activity toward the triiodine reduction reaction, comparable to the conventional Pt cathode. DFT studies theoretically identified that the intrinsic robust triiodine reduction activity is essentially governed by the unique edge-hosted Ti sites, from both aspects, near-optimal adsorption of I intermediate and electron-donating ability. This work sheds light on the rational design of Ti-based SACs and their applications in photovoltaic fields.
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Affiliation(s)
- Cuncun Xin
- State Key Laboratory of Fine Chemicals, Department of Chemistry, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Suxia Liang
- School of Mechanical Engineering, Hangzhou Dianzi University, Hangzhou 310018, China
| | - Jinwen Hu
- State Key Laboratory of Fine Chemicals, Department of Chemistry, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Jingya Guo
- State Key Laboratory of Fine Chemicals, Department of Chemistry, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Xusheng Cheng
- State Key Laboratory of Fine Chemicals, Department of Chemistry, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Wenzhe Shang
- State Key Laboratory of Fine Chemicals, Department of Chemistry, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Jiazhen Wei
- State Key Laboratory of Fine Chemicals, Department of Chemistry, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Songlin Zhang
- State Key Laboratory of Fine Chemicals, Department of Chemistry, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Wei Liu
- State Key Laboratory of Fine Chemicals, Department of Chemistry, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Chao Zhu
- SEU-FEI Nano-Pico Center, Key Laboratory of MEMS of Ministry of Education, Collaborative Innovation Center for Micro/Nano Fabrication, Device and System, Southeast University, Nanjing 210096, China
| | - Jungang Hou
- State Key Laboratory of Fine Chemicals, Department of Chemistry, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Yantao Shi
- State Key Laboratory of Fine Chemicals, Department of Chemistry, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
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14
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Recent strategies for synthesis of metallosilicate zeolites. Catal Today 2022. [DOI: 10.1016/j.cattod.2022.11.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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15
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Xu W, Wang X, Hou W, Tang K, Lu X, Gao Y, Ma R, Fu Y, Zhu W. Synergetic effects of Sn and Ti incorporated in MWW zeolites on promoting the oxidative hydration of ethylene with H2O2 to ethylene glycol. J Catal 2022. [DOI: 10.1016/j.jcat.2022.07.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Wang J, Zhu P, Liu C, Liu H, Zhang W, Zhang X. Regulating Encapsulation of Small Pt Nanoparticles inside Silicalite-1 Zeolite with the Aid of Sodium Ions for Enhancing n-Hexane Reforming. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c01196] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jinshan Wang
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Peng Zhu
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Cun Liu
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Haiou Liu
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Wei Zhang
- Dalian Institute of Chemical Physics Xi’an Clean Energy (Chemical) Research Institute, Shaanxi Yanchang Petroleum (Group) Co., Ltd., Xi’an 710065, China
| | - Xiongfu Zhang
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
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17
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Effect of Co-Doping on Cu/CaO Catalysts for Selective Furfural Hydrogenation into Furfuryl Alcohol. NANOMATERIALS 2022; 12:nano12091578. [PMID: 35564286 PMCID: PMC9102403 DOI: 10.3390/nano12091578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 05/02/2022] [Accepted: 05/04/2022] [Indexed: 02/06/2023]
Abstract
Cu/CaO catalysts with fine-tuned Co-doping for excellent catalytic performance of furfural (FAL) hydrogenation to furfuryl alcohol (FOL) were synthesized by a facile wetness impregnation method. The optimal Co1.40Cu1/CaO catalyst, with a Co to Cu mole ratio of 1.40:1, exhibited a 100% FAL conversion with a FOL yield of 98.9% at 100 °C and 20 bar H2 pressure after 4 h. As gained from catalyst characterizations, Co addition could facilitate the reducibility of the CoCu system. Metallic Cu, Co-Cu alloys, and oxide species with CaO, acting as the major active components for the reaction, were formed after reduction at 500 °C. Additionally, this combination of Co and Cu elements could result in an improvement of catalyst textures when compared with the bare CaO. Smaller catalyst particles were formed after the addition of Co into Cu species. It was found that the addition of Co to Cu on the CaO support could fine-tune the appropriate acidic and basic sites to boost the FOL yield and selectivity with suppression of undesired products. These observations could confirm that the high efficiency and selectivity are mainly attributed to the synergistic effect between the catalytically active Co-Cu species and the CaO basic sites. Additionally, the FAL conversion and FOL yield insignificantly changed throughout the third consecutive run, confirming a high stability of the developed Co1.40Cu1/CaO catalyst.
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18
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Zhao C, Zhu H, Liu Y, Feng J, Feng X, Xu W, Yang Z, Sun B. Micropore Blocking Strategy for Mitigating Adsorption and Diffusion Limitations in the Direct Epoxidation of Propylene. Chem Eng Sci 2022. [DOI: 10.1016/j.ces.2022.117574] [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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19
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Wu Q, Xu C, Zhu L, Meng X, Xiao FS. Recent Strategies for Synthesis of Metallosilicate Zeolites. Catal Today 2022. [DOI: 10.1016/j.cattod.2022.01.020] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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20
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Rosso F, Rizzetto A, Airi A, Khoma K, Signorile M, Crocellà V, Bordiga S, Galliano S, Barolo C, Alladio E, Bonino F. Rationalization of TS-1 Synthesis through the Design of Experiments. Inorg Chem Front 2022. [DOI: 10.1039/d2qi00643j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Titanium Silicalite-1 (TS-1) is a zeolite used as catalyst in partial oxidation reactions, whose synthesis is often performed under hydrothermal conditions by exploiting alkoxides as Ti and Si precursors. A...
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Lin H, Zhang J, Duan Q, Yang K, Liao W, Qi S, Lü H, Zhu Z. Dealumination-controlled strategy mediates Ti–Y zeolite with cooperative active sites for selective oxidations. Catal Sci Technol 2022. [DOI: 10.1039/d2cy00808d] [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
Hierarchical Ti–Y zeolite, with dual active sites containing framework-substituted Ti and tri-coordinated Al species, was successfully constructed via a dealumination-controlled strategy, which synergistically catalyzed selective oxidations.
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Affiliation(s)
- Haoyi Lin
- College of Chemistry and Chemical Engineering, Yantai University, 30 Qingquan Road, Yantai 264005, Shandong, China
| | - Jiaxing Zhang
- College of Chemistry and Chemical Engineering, Yantai University, 30 Qingquan Road, Yantai 264005, Shandong, China
| | - Qingxu Duan
- College of Chemistry and Chemical Engineering, Yantai University, 30 Qingquan Road, Yantai 264005, Shandong, China
| | - Kaixuan Yang
- College of Chemistry and Chemical Engineering, Yantai University, 30 Qingquan Road, Yantai 264005, Shandong, China
| | - Weiping Liao
- College of Chemistry and Chemical Engineering, Yantai University, 30 Qingquan Road, Yantai 264005, Shandong, China
| | - Shixue Qi
- College of Chemistry and Chemical Engineering, Yantai University, 30 Qingquan Road, Yantai 264005, Shandong, China
| | - Hongying Lü
- College of Chemistry and Chemical Engineering, Yantai University, 30 Qingquan Road, Yantai 264005, Shandong, China
| | - Zhiguo Zhu
- College of Chemistry and Chemical Engineering, Yantai University, 30 Qingquan Road, Yantai 264005, Shandong, China
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22
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Feng X, Lin D, Chen D, Yang C. Rationally constructed Ti sites of TS-1 for epoxidation reactions. Sci Bull (Beijing) 2021; 66:1945-1949. [PMID: 36654162 DOI: 10.1016/j.scib.2021.05.020] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Xiang Feng
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao 266580, China
| | - Dong Lin
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao 266580, China
| | - De Chen
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao 266580, China; Department of Chemical Engineering, Norwegian University of Science and Technology, Trondheim 7491, Norway.
| | - Chaohe Yang
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao 266580, China
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23
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Understanding size-dependent hydrogenation of dimethyl oxalate to methyl glycolate over Ag catalysts. J Catal 2021. [DOI: 10.1016/j.jcat.2021.07.028] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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24
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Yuan J, Song Z, Lin D, Feng X, Tuo Y, Zhou X, Yan H, Jin X, Liu Y, Chen X, Chen D, Yang C. Mesoporogen-Free Strategy to Construct Hierarchical TS-1 in a Highly Concentrated System for Gas-Phase Propene Epoxidation with H 2 and O 2. ACS APPLIED MATERIALS & INTERFACES 2021; 13:26134-26142. [PMID: 34038069 DOI: 10.1021/acsami.1c06964] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Hierarchical TS-1 has attracted enormous attention from both academia and industry due to its remarkable catalytic performance in epoxidation reactions. However, sustainable synthesis of hierarchical-nanosized TS-1 without mesoporogens is still challenging. In this work, we report a facile and mesoporogen-free strategy to simultaneously manipulate pore structure and particle size of TS-1 employing the concentrated system. Taking advantage of the suspended nuclei in the concentrated system as confirmed by the DLS-PSD and atomic force microscopy, the novel TS-1 is demonstrated to have higher Ti concentration on surface, higher surface area (539 m2/g), abundant mesopores, and reduced crystal size (ca. 150 nm). Moreover, this Au-Ti bifunctional catalyst shows a good PO formation rate with enhanced catalytic stability due to the hierarchical structure. This strategy opens a novel way for the green synthesis of hierarchical-nanosized TS-1 and facilitates industrial development of the Au/TS-1 catalyst for propene epoxidation.
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Affiliation(s)
- Juncong Yuan
- State Key Lab of Heavy Oil Processing, China University of Petroleum, Qingdao 266580, China
| | - Zhaoning Song
- State Key Lab of Heavy Oil Processing, China University of Petroleum, Qingdao 266580, China
| | - Dong Lin
- State Key Lab of Heavy Oil Processing, China University of Petroleum, Qingdao 266580, China
| | - Xiang Feng
- State Key Lab of Heavy Oil Processing, China University of Petroleum, Qingdao 266580, China
| | - Yongxiao Tuo
- State Key Lab of Heavy Oil Processing, China University of Petroleum, Qingdao 266580, China
| | - Xin Zhou
- State Key Lab of Heavy Oil Processing, China University of Petroleum, Qingdao 266580, China
| | - Hao Yan
- State Key Lab of Heavy Oil Processing, China University of Petroleum, Qingdao 266580, China
| | - Xin Jin
- State Key Lab of Heavy Oil Processing, China University of Petroleum, Qingdao 266580, China
| | - Yibin Liu
- State Key Lab of Heavy Oil Processing, China University of Petroleum, Qingdao 266580, China
| | - Xiaobo Chen
- State Key Lab of Heavy Oil Processing, China University of Petroleum, Qingdao 266580, China
| | - De Chen
- Department of Chemical Engineering, Norwegian University of Science and Technology, Trondheim 7491, Norway
| | - Chaohe Yang
- State Key Lab of Heavy Oil Processing, China University of Petroleum, Qingdao 266580, China
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