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Yuan L, Hu P, Hu B, Han J, Ma S, Yang F, Volinsky AA. Metallic and non-metallic components and morphology of iron-based catalytic effects for selective catalytic reduction performance: A systematic review. MOLECULAR CATALYSIS 2023. [DOI: 10.1016/j.mcat.2023.113113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
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2
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Ma Y, Liu W, Li Z, Sun Y, Shi M, Nan Z, Song R, Wang L, Guan J. Effect of Metal Complexing on Mn–Fe/TS-1 Catalysts for Selective Catalytic Reduction of NO with NH3. Molecules 2023; 28:molecules28073068. [PMID: 37049831 PMCID: PMC10095777 DOI: 10.3390/molecules28073068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 03/27/2023] [Accepted: 03/28/2023] [Indexed: 04/03/2023] Open
Abstract
TS-1 zeolite with desirable pore structure, an abundance of acidic sites, and good thermal stability promising as a support for the selective catalytic reduction of NO with NH3 (NH3-SCR). Herein, a series of Mn–Fe/TS-1 catalysts have been synthesized, adopting tetraethylenepentamine (TEPA) as a metal complexing agent using the one-pot hydrothermal method. The introduced TEPA can not only increase the loading of active components but also prompts the formation of a hierarchical structure through decreasing the size of TS-1 nanocrystals to produce intercrystalline mesopores during the hydrothermal crystallization process. The optimized Mn–Fe/TS-1(R-2) catalyst shows remarkable NH3-SCR performance. Moreover, it exhibits excellent resistance to H2O and SO2 at low temperatures. The characterization results indicate that Mn–Fe/TS-1(R-2) possesses abundant surface Mn4+ and Fe2+ and chemisorbed oxygen, strong reducibility, and a high Brønsted acid amount. For comparison, Mn–Fe/TiO2 displays a narrower active temperature window due to its poor thermostability.
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Affiliation(s)
- Yuanyuan Ma
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006, China
- Correspondence: (Y.M.); (J.G.)
| | - Wanting Liu
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006, China
| | - Zhifang Li
- College of Materials Science and Engineering, Qiqihar University, Qiqihar 161006, China
| | - Yuhang Sun
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006, China
| | - Mingyuan Shi
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006, China
| | - Zheng Nan
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006, China
| | - Ruotong Song
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006, China
| | - Liying Wang
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006, China
| | - Jingqi Guan
- Institute of Physical Chemistry, College of Chemistry, Jilin University, 2519 Jiefang Road, Changchun 130021, China
- Correspondence: (Y.M.); (J.G.)
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Panigrahi TH, Sahoo SR, Murmu G, Maity D, Saha S. Current challenges and developments of inorganic/organic materials for the abatement of toxic nitrogen oxides (NOx) – A critical review. PROG SOLID STATE CH 2022. [DOI: 10.1016/j.progsolidstchem.2022.100380] [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]
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4
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Yang J, Huang Y, Su J, Chen L, Zhang M, Gao M, Yang M, Wang F, Zhang X, Shen B. Low temperature denitrification and mercury removal of Mn/TiO2-based catalysts: A review of activities, mechanisms, and deactivation. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121544] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Luo R, Zeng Y, Ju S, Feng S, Zhang F, Zhong Z, Xing W. Flowerlike FeO X–MnO X Amorphous Oxides Anchored on PTFE/PPS Membrane for Efficient Dust Filtration and Low-Temperature No Reduction. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c00272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Rong Luo
- State Key Laboratory of Materials-Oriented Chemical Engineering, National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing, 210009, People’s Republic of China
| | - Yiqing Zeng
- State Key Laboratory of Materials-Oriented Chemical Engineering, National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing, 210009, People’s Republic of China
- School of Environmental Science and Engineering, Nanjing Tech University, Nanjing 211816, People’s Republic of China
| | - Shengui Ju
- State Key Laboratory of Materials-Oriented Chemical Engineering, National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing, 210009, People’s Republic of China
| | - Shasha Feng
- State Key Laboratory of Materials-Oriented Chemical Engineering, National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing, 210009, People’s Republic of China
| | - Feng Zhang
- State Key Laboratory of Materials-Oriented Chemical Engineering, National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing, 210009, People’s Republic of China
| | - Zhaoxiang Zhong
- State Key Laboratory of Materials-Oriented Chemical Engineering, National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing, 210009, People’s Republic of China
- School of Environmental Science and Engineering, Nanjing Tech University, Nanjing 211816, People’s Republic of China
| | - Weihong Xing
- State Key Laboratory of Materials-Oriented Chemical Engineering, National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing, 210009, People’s Republic of China
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Tang X, Wang C, Gao F, Han W, Yi H, Zhao S, Zhou Y, Liu Y. Mn-Fe-Ce multiple oxides with Al2O3 coating supported onto honeycomb cordierite monoliths for NO catalytic oxidation. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2020.125790] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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7
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Du H, Han Z, Wang Q, Gao Y, Gao C, Dong J, Pan X. Effects of ferric and manganese precursors on catalytic activity of Fe-Mn/TiO 2 catalysts for selective reduction of NO with ammonia at low temperature. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:40870-40881. [PMID: 32671715 DOI: 10.1007/s11356-020-10073-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Accepted: 07/08/2020] [Indexed: 06/11/2023]
Abstract
Fe-Mn/TiO2 catalysts were prepared through the wet impregnation process to selective catalytic reduction of NO by NH3 at low temperature, and series of experiments were conducted to investigate the effects of key precursors on their SCR performance. Ferric nitrate, ferrous sulfate, and ferrous chloride were chosen as Fe precursors while manganese nitrate, manganese acetate, and manganese chloride as Mn precursors. These precursors had been commonly used to prepare Fe-Mn/TiO2 catalysts by numerous researchers. The results showed that there were distinct differences in NO conversion efficiencies at low temperature of catalysts prepared with different precursors. Catalysts prepared with ferric nitrate and manganese nitrate precursors exhibited the best catalytic performance at low temperature, while three kinds of catalysts prepared with manganese chloride precursors exhibited significantly low catalytic activity. All catalysts were characterized by XRD, SEM, H2-TPR, NH3-TPD, and XPS. The results indicated that when the catalysts were prepared with manganese nitrate or manganese acetate as precursors, Mn4+ contents and Oβ/(Oβ + Oα) ratios decreased in an order of ferric nitrate > ferrous sulfate > ferrous chloride, which was consistent with the change of catalytic activities of the corresponding catalysts at low temperature. It can be found that the excellent catalytic performance of Fe(A)-Mn(a)/TiO2 was ascribed to high redox property and enrichment of Mn4+species and surface chemical labile oxygen groups.
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Affiliation(s)
- Huan Du
- Marine Engineering College, Dalian Maritime University, No.1, Linghai Road, Dalian, 116026, China
- Liaoning Research Center for Marine Internal Combustion Engine Energy-Saving, Dalian, 116026, China
| | - Zhitao Han
- Marine Engineering College, Dalian Maritime University, No.1, Linghai Road, Dalian, 116026, China.
- Liaoning Research Center for Marine Internal Combustion Engine Energy-Saving, Dalian, 116026, China.
| | - Qimeng Wang
- Marine Engineering College, Dalian Maritime University, No.1, Linghai Road, Dalian, 116026, China
- Liaoning Research Center for Marine Internal Combustion Engine Energy-Saving, Dalian, 116026, China
| | - Yu Gao
- Marine Engineering College, Dalian Maritime University, No.1, Linghai Road, Dalian, 116026, China
- Liaoning Research Center for Marine Internal Combustion Engine Energy-Saving, Dalian, 116026, China
| | - Cong Gao
- Marine Engineering College, Dalian Maritime University, No.1, Linghai Road, Dalian, 116026, China
- Liaoning Research Center for Marine Internal Combustion Engine Energy-Saving, Dalian, 116026, China
| | - Jingming Dong
- Marine Engineering College, Dalian Maritime University, No.1, Linghai Road, Dalian, 116026, China
- Liaoning Research Center for Marine Internal Combustion Engine Energy-Saving, Dalian, 116026, China
| | - Xinxiang Pan
- Marine Engineering College, Dalian Maritime University, No.1, Linghai Road, Dalian, 116026, China.
- Liaoning Research Center for Marine Internal Combustion Engine Energy-Saving, Dalian, 116026, China.
- Guangdong Ocean University, Zhanjiang, 524088, Guangdong, China.
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8
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Promoting Effect of Ti Species in MnOx-FeOx/Silicalite-1 for the Low-Temperature NH3-SCR Reaction. Catalysts 2020. [DOI: 10.3390/catal10050566] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Manganese and iron oxides catalysts supported on silicalite-1 and titanium silicalite-1 (TS-1) are synthesized by the wet impregnation method for the selective catalytic reduction (SCR) of NOx with NH3 (NH3-SCR), respectively. The optimized catalyst demonstrates an increased NOx conversion efficiency of 20% below 150 °C, with a space velocity of 18,000 h−1, which can be attributed to the incorporation of Ti species. The presence of Ti species enhances surface acidity and redox ability of the catalyst without changing the structure of supporter. Moreover, further researches based on in situ NH3 adsorption reveal that Lewis acid sites linked to Mn4+ on the surface have a huge influence on the improvement of denitration efficiency of the catalyst at low temperatures.
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Mn/TiO2 catalysts prepared by ultrasonic spray pyrolysis method for NOx removal in low-temperature SCR reaction. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2019.124210] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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10
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Gu J, Zhu B, Duan R, Chen Y, Wang S, Liu L, Wang X. Highly dispersed MnO x–FeO x supported by silicalite-1 for the selective catalytic reduction of NO x with NH 3 at low temperatures. Catal Sci Technol 2020. [DOI: 10.1039/d0cy00001a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
MnOx–FeOx-Loaded silicalite-1 catalysts exhibit high NOx conversion at low temperatures.
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Affiliation(s)
- Jialiang Gu
- Beijing Key Laboratory for Solid Waste Utilization and Management
- Department of Energy and Resources Engineering
- College of Engineering
- Peking University
- Beijing 100871
| | - Bingjun Zhu
- School of Space and Environment
- Beihang University
- Beijing 100191
- PR China
| | - Rudi Duan
- Beijing Key Laboratory for Solid Waste Utilization and Management
- Department of Energy and Resources Engineering
- College of Engineering
- Peking University
- Beijing 100871
| | - Yan Chen
- State Key Joint Laboratory of Environment Simulation and Pollution Control
- School of Environment
- Tsinghua University
- Beijing
- PR China
| | - Shaoxin Wang
- Beijing Key Laboratory for Solid Waste Utilization and Management
- Department of Energy and Resources Engineering
- College of Engineering
- Peking University
- Beijing 100871
| | - Lili Liu
- Beijing Key Laboratory for Solid Waste Utilization and Management
- Department of Energy and Resources Engineering
- College of Engineering
- Peking University
- Beijing 100871
| | - Xidong Wang
- Beijing Key Laboratory for Solid Waste Utilization and Management
- Department of Energy and Resources Engineering
- College of Engineering
- Peking University
- Beijing 100871
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11
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Song Z, Liu P, Fu Y, Liu H, Huang Z, Kang H, Mao Y, Liu B, Guo Y. Promotional effect of acidic oxide on catalytic activity and N
2
selectivity over CeO
2
for selective catalytic reduction of NO
x
by NH
3. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.4919] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Zhongxian Song
- Henan Province Key Laboratory of Water Pollution Control and Rehabilitation TechnologyHenan University of Urban Construction Pingdingshan 467000 China
| | - Pan Liu
- Henan Province Key Laboratory of Water Pollution Control and Rehabilitation TechnologyHenan University of Urban Construction Pingdingshan 467000 China
| | - Yongmei Fu
- Henan Province Key Laboratory of Water Pollution Control and Rehabilitation TechnologyHenan University of Urban Construction Pingdingshan 467000 China
| | - Hongpan Liu
- College of Materials and Chemical EngineeringChongqing University of Arts and Sciences Chongqing 402160 China
| | - Zhenzhen Huang
- College of Environmental Science and EngineeringHunan University Changsha 410082 China
| | - Haiyan Kang
- Henan Province Key Laboratory of Water Pollution Control and Rehabilitation TechnologyHenan University of Urban Construction Pingdingshan 467000 China
| | - Yanli Mao
- Henan Province Key Laboratory of Water Pollution Control and Rehabilitation TechnologyHenan University of Urban Construction Pingdingshan 467000 China
| | - Biao Liu
- Henan Province Key Laboratory of Water Pollution Control and Rehabilitation TechnologyHenan University of Urban Construction Pingdingshan 467000 China
| | - Yifei Guo
- Henan Province Key Laboratory of Water Pollution Control and Rehabilitation TechnologyHenan University of Urban Construction Pingdingshan 467000 China
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12
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Abstract
The importance of the low-temperature selective catalytic reduction (LT-SCR) of NOx by NH3 is increasing due to the recent severe pollution regulations being imposed around the world. Supported and mixed transition metal oxides have been widely investigated for LT-SCR technology. However, these catalytic materials have some drawbacks, especially in terms of catalyst poisoning by H2O or/and SO2. Hence, the development of catalysts for the LT-SCR process is still under active investigation throughout seeking better performance. Extensive research efforts have been made to develop new advanced materials for this technology. This article critically reviews the recent research progress on supported transition and mixed transition metal oxide catalysts for the LT-SCR reaction. The review covered the description of the influence of operating conditions and promoters on the LT-SCR performance. The reaction mechanism, reaction intermediates, and active sites are also discussed in detail using isotopic labelling and in situ FT-IR studies.
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13
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Chen H, Qi X, Liang Y, Yang X. Effect of Fe reduced-modification on TiO2 supported Fe–Mn catalyst for NO removal by NH3 at low temperature. REACTION KINETICS MECHANISMS AND CATALYSIS 2018. [DOI: 10.1007/s11144-018-1517-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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