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Xu HH, Xian YW, Zhao X, Xu LY, Wen CH, Zhao H, Tang C, Jia WZ, Luo MF, Chen J. Selective catalytic oxidation of DMF over Cu-Ce/H-MOR by modulating the surface active sites. JOURNAL OF HAZARDOUS MATERIALS 2024; 474:134829. [PMID: 38865924 DOI: 10.1016/j.jhazmat.2024.134829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Revised: 05/25/2024] [Accepted: 06/04/2024] [Indexed: 06/14/2024]
Abstract
Selective catalytic oxidation of the hazardous DMF exhaust gas presents a significant challenge in balancing oxidation activity and products selectivity (CO, NOx, N2, etc.). It is found that Cu/H-MOR demonstrates superior performance for DMF oxidation compared to CuO on other supports (γ-Al2O3, HY, ZSM-5) in terms of product selectivity and stability. The geometric and electronic structures of CuO active sites in Cu/H-MOR have been regulated by CeO2 promoter, leading to an increase in the ratio of active CuO (highly dispersed CuO and Cu+ specie). As a result, the oxidation activity and stability of the Cu/H-MOR catalyst were enhanced for DMF selective catalytic oxidation. However, excessive CuO or CeO2 content led to decreased N2 selectivity due to over-high oxidation activity. It is also revealed that Ce3+ species, active CuO species, and surface acid sites play a critical role in internal selective catalytic reduction reaction during DMF oxidation. The 10Cu-Ce/H-MOR (1/4) catalyst exhibited both high oxidation activity and internal selective catalytic reduction activity due to its abundance of active CuO specie as well as Ce3+ species and surface acid sites. Consequently, the 10Cu-Ce/H-MOR (1/4) catalyst demonstrated the widest temperature window for DMF oxidation with high N2 selectivity. These findings emphasize the importance of surface active sites modification for DMF selective catalytic oxidation.
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Affiliation(s)
- Hua-Hui Xu
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Key Laboratory for Reactive Chemistry on Solid Surfaces, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua 321004, China
| | - Yi-Wei Xian
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Key Laboratory for Reactive Chemistry on Solid Surfaces, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua 321004, China
| | - Xi Zhao
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Key Laboratory for Reactive Chemistry on Solid Surfaces, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua 321004, China
| | - Lin-Ya Xu
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Key Laboratory for Reactive Chemistry on Solid Surfaces, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua 321004, China
| | - Cai-Hao Wen
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Key Laboratory for Reactive Chemistry on Solid Surfaces, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua 321004, China
| | - Han Zhao
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Key Laboratory for Reactive Chemistry on Solid Surfaces, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua 321004, China
| | - Cen Tang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Key Laboratory for Reactive Chemistry on Solid Surfaces, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua 321004, China
| | - Wen-Zhi Jia
- Huzhou Key Laboratory of Environmental Functional Materials and Pollution Control, Department of Materials Engineering, Huzhou University, Huzhou 313000, China.
| | - Meng-Fei Luo
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Key Laboratory for Reactive Chemistry on Solid Surfaces, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua 321004, China
| | - Jian Chen
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Key Laboratory for Reactive Chemistry on Solid Surfaces, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua 321004, China.
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Luo W, Liu H, Yuan H, Liu H. Synthesis of Two-Dimensional Zeolite Nanosheets Applied to the Catalytic Cracking of a Waste Cooking Oil Model Compound to Produce Light Olefins. ACS OMEGA 2024; 9:17054-17065. [PMID: 38645340 PMCID: PMC11025087 DOI: 10.1021/acsomega.3c08748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 02/28/2024] [Accepted: 03/15/2024] [Indexed: 04/23/2024]
Abstract
Hierarchical zeolites can provide multidimensional spatial networks and, therefore, have significant potential as catalysts for the cracking of biomass to generate light olefins. The present work synthesized the diquaternary ammonium-type surfactant [C18H37-N+(CH3)2-(CH2)6-N+(CH3)2-C6H13]Br2, incorporating hydrophobic 18-carbon alkyl groups for usage as a structure-directing agent. This compound was subsequently used to prepare nanosheets of a hierarchical ZSM-5 two-dimensional zeolite (HNZSM-5) through a one-pot hydrothermal method. The crystal phase, morphology, and hierarchical structure of the HNZSM-5 were analyzed using various techniques, including X-ray diffraction, electron microscopy, and N2 adsorption/desorption. When applied to the catalytic cracking of a waste cooking oil model compound, the HNZSM-5 exhibited superior activity and stability compared with a conventional ZSM-5. This performance was attributed to the more accessible acid sites and unique lamellar structure of the former material. The HNZSM-5 also outlasted the conventional zeolite, showing deactivation after 45 h of reaction compared with 20 h, indicating exceptional stability and excellent resistance to coking.
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Affiliation(s)
- Wenbo Luo
- School
of Chemistry and Chemical Engineering, North
Minzu University, Yinchuan 750021, China
| | - Haoyu Liu
- School
of Chemistry and Chemical Engineering, North
Minzu University, Yinchuan 750021, China
| | - Hong Yuan
- School
of Chemistry and Chemical Engineering, North
Minzu University, Yinchuan 750021, China
- State
Key Laboratory of National Ethnic Affairs Commission Chemical Technology, North Minzu University, Yinchuan 750021, China
- Ningxia
Key Laboratory of Solar Chemical Conversion Technology, North Minzu University, Yinchuan 750021, China
| | - Hao Liu
- School
of Chemistry and Chemical Engineering, North
Minzu University, Yinchuan 750021, China
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3
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Li P, Li A, Ruan R, Guo Y, He Q, Zou W, Hou L. Asymmetrical Gemini Surfactants Directed Synthesis Of Hierarchical ZSM‐5 Zeolites and Their Immobilization of Molybdenum Complex for the Catalytic Epoxidation of Alkenes. ChemCatChem 2021. [DOI: 10.1002/cctc.202100716] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Pan Li
- College of Chemical Engineering Fuzhou University Xueyuan Road No. 2 Fuzhou 350116 P. R. China
| | - Angxi Li
- Engineering Research Center for Metal Rubber School of Mechanical Engineering and Automation Fuzhou University Xueyuan Road No. 2 Fuzhou 350116 P. R. China
| | - Renjie Ruan
- College of Chemical Engineering Fuzhou University Xueyuan Road No. 2 Fuzhou 350116 P. R. China
| | - Yingxiong Guo
- College of Chemical Engineering Fuzhou University Xueyuan Road No. 2 Fuzhou 350116 P. R. China
| | - Qian He
- College of Chemical Engineering Fuzhou University Xueyuan Road No. 2 Fuzhou 350116 P. R. China
| | - Wenhong Zou
- College of Chemical Engineering Fuzhou University Xueyuan Road No. 2 Fuzhou 350116 P. R. China
| | - Linxi Hou
- College of Chemical Engineering Fuzhou University Xueyuan Road No. 2 Fuzhou 350116 P. R. China
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Sheng N, Xu H, Liu X, Chu Y, Han S, Meng X, Liu Y, Liu C, Xiao FS. Self-formation of hierarchical SAPO-11 molecular sieves as an efficient hydroisomerization support. Catal Today 2020. [DOI: 10.1016/j.cattod.2019.06.069] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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6
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Synthesis and characterization of functionalized NaP Zeolite@CoFe2O4 hybrid materials: a micro–meso-structure catalyst for aldol condensation. RESEARCH ON CHEMICAL INTERMEDIATES 2020. [DOI: 10.1007/s11164-020-04085-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Li P, Guo Y, Lu Z, Zhang W, Hou L. Syntheses, surface activities and aggregation morphologies of a series of novel itaconic acid based asymmetrical gemini surfactants. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.111218] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Bolshakov A, Romero Hidalgo DE, van Hoof AJF, Kosinov N, Hensen EJM. Mordenite Nanorods Prepared by an Inexpensive Pyrrolidine‐based Mesoporogen for Alkane Hydroisomerization. ChemCatChem 2019. [DOI: 10.1002/cctc.201900298] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Aleksei Bolshakov
- Laboratory of Inorganic Materials and Catalysis Schuit Institute of Catalysis Department of Chemical Engineering and ChemistryEindhoven University of Technology P.O. Box 513 5600 MB Eindhoven The Netherlands
| | - Douglas E. Romero Hidalgo
- Laboratory of Inorganic Materials and Catalysis Schuit Institute of Catalysis Department of Chemical Engineering and ChemistryEindhoven University of Technology P.O. Box 513 5600 MB Eindhoven The Netherlands
| | - Arno J. F. van Hoof
- Laboratory of Inorganic Materials and Catalysis Schuit Institute of Catalysis Department of Chemical Engineering and ChemistryEindhoven University of Technology P.O. Box 513 5600 MB Eindhoven The Netherlands
| | - Nikolay Kosinov
- Laboratory of Inorganic Materials and Catalysis Schuit Institute of Catalysis Department of Chemical Engineering and ChemistryEindhoven University of Technology P.O. Box 513 5600 MB Eindhoven The Netherlands
| | - Emiel J. M. Hensen
- Laboratory of Inorganic Materials and Catalysis Schuit Institute of Catalysis Department of Chemical Engineering and ChemistryEindhoven University of Technology P.O. Box 513 5600 MB Eindhoven The Netherlands
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Wang S, Tian R, He B, Dai R, Li X, Wu X, An X, Xie X. The success of dual‐functional templating for synthesizing hierarchical analcime zeolite. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.4711] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Shiyao Wang
- College of Chemistry and Chemical EngineeringTaiyuan University of Technology Ltd Taiyuan 030024 China
- Shanxi Key Laboratory of Gas Energy Efficient and Clean Utilization Ltd Taiyuan 030024 China
| | - Ren Tian
- College of Chemistry and Chemical EngineeringTaiyuan University of Technology Ltd Taiyuan 030024 China
- Shanxi Key Laboratory of Gas Energy Efficient and Clean Utilization Ltd Taiyuan 030024 China
| | - Bo He
- Shanxi Industrial Equipment Installation Group Co. Ltd Taiyuan 030024 China
| | - Rong Dai
- College of Chemistry and Chemical EngineeringTaiyuan University of Technology Ltd Taiyuan 030024 China
- Shanxi Key Laboratory of Gas Energy Efficient and Clean Utilization Ltd Taiyuan 030024 China
| | - Xing Li
- College of Chemistry and Chemical EngineeringTaiyuan University of Technology Ltd Taiyuan 030024 China
- Shanxi Key Laboratory of Gas Energy Efficient and Clean Utilization Ltd Taiyuan 030024 China
| | - Xu Wu
- College of Chemistry and Chemical EngineeringTaiyuan University of Technology Ltd Taiyuan 030024 China
- Shanxi Key Laboratory of Gas Energy Efficient and Clean Utilization Ltd Taiyuan 030024 China
| | - Xia An
- College of Chemistry and Chemical EngineeringTaiyuan University of Technology Ltd Taiyuan 030024 China
- Shanxi Key Laboratory of Gas Energy Efficient and Clean Utilization Ltd Taiyuan 030024 China
| | - Xianmei Xie
- College of Chemistry and Chemical EngineeringTaiyuan University of Technology Ltd Taiyuan 030024 China
- Shanxi Key Laboratory of Gas Energy Efficient and Clean Utilization Ltd Taiyuan 030024 China
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Ren X, Xiao L, Qu R, Liu S, Ye D, Song H, Wu W, Zheng C, Wu X, Gao X. Synthesis and characterization of a single phase zeolite A using coal fly ash. RSC Adv 2018; 8:42200-42209. [PMID: 35558779 PMCID: PMC9092078 DOI: 10.1039/c8ra09215j] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Accepted: 12/12/2018] [Indexed: 01/19/2023] Open
Abstract
Zeolitization of coal fly ash (CFA) provides a potential alternative for creating high-added-value products from this hazardous solid waste. In this work, a single phase zeolite A with high crystallinity was successfully synthesized from CFA via the alkali fusion hydrothermal method. X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray fluorescence (XRF), Fourier transform infrared (FT-IR) spectroscopy, N2 physisorption, and solid-state MAS NMR spectra were applied to characterize as-synthesized zeolites. Results indicated that the type and purity of zeolite were closely related to the synthesis conditions and parameters. A well-defined cubic shape of zeolite A with a specific surface area of 43.7 m2 g−1 was obtained at a low temperature of 75 °C during hydrothermal treatment for 18 h. The ammonium cation exchange capacity (CEC) test showed an impressive value of 232.2 mmol 100 g−1 over prepared zeolite A, which was about 22 times that of the original CFA and close to commercial zeolite A. These results pave the way for the exploitation and utilization of the CFA. A single phase zeolite A with high CEC and crystallinity was synthesized by a simple hydrothermal method at low temperature.![]()
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Affiliation(s)
- Xiaoyu Ren
- State Key Laboratory of Clean Energy Utilization
- Zhejiang University
- Hangzhou 310027
- China
| | - Lifeng Xiao
- State Key Laboratory of Clean Energy Utilization
- Zhejiang University
- Hangzhou 310027
- China
| | - Ruiyang Qu
- State Key Laboratory of Clean Energy Utilization
- Zhejiang University
- Hangzhou 310027
- China
| | - Shaojun Liu
- State Key Laboratory of Clean Energy Utilization
- Zhejiang University
- Hangzhou 310027
- China
| | - Dong Ye
- State Key Laboratory of Clean Energy Utilization
- Zhejiang University
- Hangzhou 310027
- China
| | - Hao Song
- State Key Laboratory of Clean Energy Utilization
- Zhejiang University
- Hangzhou 310027
- China
| | - Weihong Wu
- State Key Laboratory of Clean Energy Utilization
- Zhejiang University
- Hangzhou 310027
- China
| | - Chenghang Zheng
- State Key Laboratory of Clean Energy Utilization
- Zhejiang University
- Hangzhou 310027
- China
| | - Xuecheng Wu
- State Key Laboratory of Clean Energy Utilization
- Zhejiang University
- Hangzhou 310027
- China
| | - Xiang Gao
- State Key Laboratory of Clean Energy Utilization
- Zhejiang University
- Hangzhou 310027
- China
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