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Xu J, Bian Y, Tian W, Pan C, Wu CE, Xu L, Wu M, Chen M. The Structures and Compositions Design of the Hollow Micro-Nano-Structured Metal Oxides for Environmental Catalysis. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:1190. [PMID: 39057867 PMCID: PMC11280307 DOI: 10.3390/nano14141190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2024] [Revised: 06/23/2024] [Accepted: 06/29/2024] [Indexed: 07/28/2024]
Abstract
In recent decades, with the rapid development of the inorganic synthesis and the increasing discharge of pollutants in the process of industrialization, hollow-structured metal oxides (HSMOs) have taken on a striking role in the field of environmental catalysis. This is all due to their unique structural characteristics compared to solid nanoparticles, such as high loading capacity, superior pore permeability, high specific surface area, abundant inner void space, and low density. Although the HSMOs with different morphologies have been reviewed and prospected in the aspect of synthesis strategies and potential applications, there has been no systematic review focusing on the structures and compositions design of HSMOs in the field of environmental catalysis so far. Therefore, this review will mainly focus on the component dependence and controllable structure of HSMOs in the catalytic elimination of different environmental pollutants, including the automobile and stationary source emissions, volatile organic compounds, greenhouse gases, ozone-depleting substances, and other potential pollutants. Moreover, we comprehensively reviewed the applications of the catalysts with hollow structure that are mainly composed of metal oxides such as CeO2, MnOx, CuOx, Co3O4, ZrO2, ZnO, Al3O4, In2O3, NiO, and Fe3O4 in automobile and stationary source emission control, volatile organic compounds emission control, and the conversion of greenhouse gases and ozone-depleting substances. The structure-activity relationship is also briefly discussed. Finally, further challenges and development trends of HSMO catalysts in environmental catalysis are also prospected.
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Affiliation(s)
- Jingxin Xu
- State Key Laboratory of Low-Carbon Smart Coal-Fired Power Generation and Ultra-Clean Emission, China Energy Science and Technology Research Institute Co., Ltd., Nanjing 210023, China; (J.X.); (W.T.)
| | - Yufang Bian
- Collaborative Innovation Centre of the Atmospheric Environment and Equipment Technology, School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Nanjing 210044, China;
| | - Wenxin Tian
- State Key Laboratory of Low-Carbon Smart Coal-Fired Power Generation and Ultra-Clean Emission, China Energy Science and Technology Research Institute Co., Ltd., Nanjing 210023, China; (J.X.); (W.T.)
| | - Chao Pan
- State Key Laboratory of Low-Carbon Smart Coal-Fired Power Generation and Ultra-Clean Emission, China Energy Science and Technology Research Institute Co., Ltd., Nanjing 210023, China; (J.X.); (W.T.)
| | - Cai-e Wu
- College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing 210037, China;
| | - Leilei Xu
- Collaborative Innovation Centre of the Atmospheric Environment and Equipment Technology, School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Nanjing 210044, China;
| | - Mei Wu
- National & Local Joint Engineering Research Center for Mineral Salt Deep Utilization, Huaiyin Institute of Technology, Huaian 223003, China
| | - Mindong Chen
- Collaborative Innovation Centre of the Atmospheric Environment and Equipment Technology, School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Nanjing 210044, China;
- School of Environment and Energy Engineering, Anhui Jianzhu University, Hefei 230009, China
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2
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Bols ML, Ma J, Rammal F, Plessers D, Wu X, Navarro-Jaén S, Heyer AJ, Sels BF, Solomon EI, Schoonheydt RA. In Situ UV-Vis-NIR Absorption Spectroscopy and Catalysis. Chem Rev 2024; 124:2352-2418. [PMID: 38408190 DOI: 10.1021/acs.chemrev.3c00602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
This review highlights in situ UV-vis-NIR range absorption spectroscopy in catalysis. A variety of experimental techniques identifying reaction mechanisms, kinetics, and structural properties are discussed. Stopped flow techniques, use of laser pulses, and use of experimental perturbations are demonstrated for in situ studies of enzymatic, homogeneous, heterogeneous, and photocatalysis. They access different time scales and are applicable to different reaction systems and catalyst types. In photocatalysis, femto- and nanosecond resolved measurements through transient absorption are discussed for tracking excited states. UV-vis-NIR absorption spectroscopies for structural characterization are demonstrated especially for Cu and Fe exchanged zeolites and metalloenzymes. This requires combining different spectroscopies. Combining magnetic circular dichroism and resonance Raman spectroscopy is especially powerful. A multitude of phenomena can be tracked on transition metal catalysts on various supports, including changes in oxidation state, adsorptions, reactions, support interactions, surface plasmon resonances, and band gaps. Measurements of oxidation states, oxygen vacancies, and band gaps are shown on heterogeneous catalysts, especially for electrocatalysis. UV-vis-NIR absorption is burdened by broad absorption bands. Advanced analysis techniques enable the tracking of coking reactions on acid zeolites despite convoluted spectra. The value of UV-vis-NIR absorption spectroscopy to catalyst characterization and mechanistic investigation is clear but could be expanded.
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Affiliation(s)
- Max L Bols
- Laboratory for Chemical Technology (LCT), University of Ghent, Technologiepark Zwijnaarde 125, 9052 Ghent, Belgium
| | - Jing Ma
- Department of Microbial and Molecular Systems, Center for Sustainable Catalysis and Engineering, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium
| | - Fatima Rammal
- Department of Microbial and Molecular Systems, Center for Sustainable Catalysis and Engineering, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium
| | - Dieter Plessers
- Department of Microbial and Molecular Systems, Center for Sustainable Catalysis and Engineering, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium
| | - Xuejiao Wu
- Department of Microbial and Molecular Systems, Center for Sustainable Catalysis and Engineering, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium
| | - Sara Navarro-Jaén
- Department of Microbial and Molecular Systems, Center for Sustainable Catalysis and Engineering, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium
| | - Alexander J Heyer
- Department of Microbial and Molecular Systems, Center for Sustainable Catalysis and Engineering, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Bert F Sels
- Department of Microbial and Molecular Systems, Center for Sustainable Catalysis and Engineering, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium
| | - Edward I Solomon
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Robert A Schoonheydt
- Department of Microbial and Molecular Systems, Center for Sustainable Catalysis and Engineering, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium
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3
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Sakha MR, Halimitabrizi P, Soltanali S, Ektefa F, Hajjar Z, Salari D. Sustainable product-based approach in the production of olefins using a dual functional ZSM-5 catalyst. RSC Adv 2023; 13:7514-7523. [PMID: 36908541 PMCID: PMC9993066 DOI: 10.1039/d3ra00037k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Accepted: 02/27/2023] [Indexed: 03/14/2023] Open
Abstract
Investigation of the current industrial processes, such as methanol to olefin (MTO) and hexane to olefin (HTO), in terms of green and sustainable chemistry approaches in order to design the process, catalyst and reactor from the beginning in such a way as to minimize environmental pollution is compulsory. Therefore, the synthesis of a group of multifunctional catalysts, which can be used simultaneously in both industrial processes to produce a variety of products, was studied. The effect of incorporation of different metals (Fe, Mn, Zn, Ga and Al) on the strengthening of each of the products was also studied. The investigation of reactor productivity (WHSVHTO = 25) in HTO showed that the production efficiency of propylene in microchannels is higher than the ideal value for all samples, which is a significant improvement for sustainable approaches in future technologies. Considering the overall performances, Ga-ZM showed the best performance in both processes due to the high P/E ratio. The significant effect of Ga on the increasing of propylene was confirmed in MTO at 400 °C (P/E ≃ ∞), which indicated the dramatic effect of this metal in directing the reaction mechanism to an olefin-based cycle by converting almost all ethylene to propylene by methylation.
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Affiliation(s)
- Mohsen Rostami Sakha
- Reactor and Catalysis Research Lab., Department of Chemistry, University of Tabriz Iran
| | - Parya Halimitabrizi
- Reactor and Catalysis Research Lab., Department of Chemistry, University of Tabriz Iran
- Department of Chemical and Petroleum Engineering, University of Tabriz Iran
| | - Saeed Soltanali
- Catalysis Technologies Development Division, Research Institute of Petroleum Industry (RIPI) Tehran Iran
| | - Fatemeh Ektefa
- Catalysis Technologies Development Division, Research Institute of Petroleum Industry (RIPI) Tehran Iran
| | - Zeinab Hajjar
- Nanotechnology Research Division, Research Institute of Petroleum Industry (RIPI) Tehran Iran
| | - Dariush Salari
- Reactor and Catalysis Research Lab., Department of Chemistry, University of Tabriz Iran
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4
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Zhang C, Liu X, Jiang M, Wen Y, Zhang J, Qian G. A review on identification, quantification, and transformation of active species in SCR by EPR spectroscopy. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:28550-28562. [PMID: 36708481 DOI: 10.1007/s11356-023-25467-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Accepted: 01/17/2023] [Indexed: 06/18/2023]
Abstract
Electron paramagnetic resonance (EPR) is the only technique that provides direct detection of free radicals and samples that contain unpaired electrons. Thus, EPR had an important potential application in the field of selective catalytic reduction of nitrogen oxide (SCR). For the first time, this work reviewed recent developments of EPR in charactering SCR. First, qualitative analysis focused on recognizing Cu, Fe, V, Ti, Mn, and free-radical (oxygen vacancy and superoxide radical) species. Second, quantification of the active species was obtained by a double-integral and calibration method. Third, the active species evolved because of different thermal treatments and redox-thermal processes under reductants (NH3 and NO). The coordination information of the active species in catalysts and their effects on SCR performances were concluded from mechanism viewpoints. Finally, potential perspectives were put forward for EPR developments in characterizing the SCR processes in the future. After all, EPR characterization will help to have a deep understanding of structure-activity relationship in one catalyst.
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Affiliation(s)
- Chenchen Zhang
- SHU Center of Green Urban Mining & Industry Ecology, School of Environmental and Chemical Engineering, Shanghai University, No. 381 Nanchen Road., Shanghai, 200444, People's Republic of China
| | - Xinyu Liu
- SHU Center of Green Urban Mining & Industry Ecology, School of Environmental and Chemical Engineering, Shanghai University, No. 381 Nanchen Road., Shanghai, 200444, People's Republic of China
| | - Meijia Jiang
- SHU Center of Green Urban Mining & Industry Ecology, School of Environmental and Chemical Engineering, Shanghai University, No. 381 Nanchen Road., Shanghai, 200444, People's Republic of China
| | - Yuling Wen
- Shanghai SUS Environment Co., LTD, Shanghai, 201703, China
| | - Jia Zhang
- SHU Center of Green Urban Mining & Industry Ecology, School of Environmental and Chemical Engineering, Shanghai University, No. 381 Nanchen Road., Shanghai, 200444, People's Republic of China.
| | - Guangren Qian
- MGI of Shanghai University, Xiapu Town, Xiangdong District, Pingxiang City, Jiangxi, 337022, People's Republic of China
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5
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Yang WL, Zhang SD, Zhang MY. Theoretical Study of the Natural Active Structure of the Fe-SSZ-13 Zeolite and its Reactivity toward the Methane to Methanol Oxidation Reaction. Chem Phys Lett 2023. [DOI: 10.1016/j.cplett.2023.140440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/22/2023]
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6
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Du B, Hu Y, Cheng T, Jiang Z, Wang Z, Zhu C. Low-temperature selective catalytic reduction of NO with NH 3 over an FeO x /β-MnO 2 composite. RSC Adv 2023; 13:6378-6388. [PMID: 36845597 PMCID: PMC9943891 DOI: 10.1039/d3ra00235g] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Accepted: 02/13/2023] [Indexed: 02/24/2023] Open
Abstract
A series of Fe-modified β-MnO2 (FeO x /β-MnO2) composite catalysts were prepared by an impregnation method with β-MnO2 and ferro nitrate as raw materials. The structures and properties of the composites were systematically characterized and analyzed by X-ray diffraction, N2 adsorption-desorption, high-resolution electron microscopy, temperature-programmed reduction of H2, temperature-programmed desorption of NH3, and FTIR infrared spectroscopy. The deNO x activity, water resistance, and sulfur resistance of the composite catalysts were evaluated in a thermally fixed catalytic reaction system. The results indicated that the FeO x /β-MnO2 composite (Fe/Mn molar ratio of 0.3 and calcination temperature of 450 °C) had higher catalytic activity and a wider reaction temperature window compared with β-MnO2. The water resistance and sulfur resistance of the catalyst were enhanced. It reached 100% NO conversion efficiency with an initial NO concentration of 500 ppm, a gas hourly space velocity of 45 000 h-1, and a reaction temperature of 175-325 °C. The appropriate Fe/Mn molar ratio sample had a synergistic effect, affecting the morphology, redox properties, and acidic sites, and helped to improve the low-temperature NH3-SCR activity of the composite catalyst.
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Affiliation(s)
- Bo Du
- School of Resource and Environmental Engineering, Hefei University of Technology Hefei 230009 P. R. China +86 551 62901649 +86 551 62901523.,Institute of Atmospheric Environment & Pollution Control, Hefei University of Technology Hefei 230009 P. R. China.,Key Laboratory of Nanominerals and Pollution Control of Anhui Higher Education Institutes, Hefei University of Technology Hefei 230009 P. R. China
| | - Yuting Hu
- School of Resource and Environmental Engineering, Hefei University of Technology Hefei 230009 P. R. China +86 551 62901649 +86 551 62901523.,Institute of Atmospheric Environment & Pollution Control, Hefei University of Technology Hefei 230009 P. R. China.,Key Laboratory of Nanominerals and Pollution Control of Anhui Higher Education Institutes, Hefei University of Technology Hefei 230009 P. R. China
| | - Ting Cheng
- School of Resource and Environmental Engineering, Hefei University of Technology Hefei 230009 P. R. China +86 551 62901649 +86 551 62901523.,Institute of Atmospheric Environment & Pollution Control, Hefei University of Technology Hefei 230009 P. R. China.,Key Laboratory of Nanominerals and Pollution Control of Anhui Higher Education Institutes, Hefei University of Technology Hefei 230009 P. R. China
| | - Zhaozhong Jiang
- School of Resource and Environmental Engineering, Hefei University of Technology Hefei 230009 P. R. China +86 551 62901649 +86 551 62901523.,Institute of Atmospheric Environment & Pollution Control, Hefei University of Technology Hefei 230009 P. R. China.,Key Laboratory of Nanominerals and Pollution Control of Anhui Higher Education Institutes, Hefei University of Technology Hefei 230009 P. R. China
| | - Zhenzhen Wang
- School of Resource and Environmental Engineering, Hefei University of Technology Hefei 230009 P. R. China +86 551 62901649 +86 551 62901523.,Institute of Atmospheric Environment & Pollution Control, Hefei University of Technology Hefei 230009 P. R. China.,Key Laboratory of Nanominerals and Pollution Control of Anhui Higher Education Institutes, Hefei University of Technology Hefei 230009 P. R. China
| | - Chengzhu Zhu
- School of Resource and Environmental Engineering, Hefei University of Technology Hefei 230009 P. R. China +86 551 62901649 +86 551 62901523.,Institute of Atmospheric Environment & Pollution Control, Hefei University of Technology Hefei 230009 P. R. China.,Key Laboratory of Nanominerals and Pollution Control of Anhui Higher Education Institutes, Hefei University of Technology Hefei 230009 P. R. China.,Low Temperature Denitration Engineering Research Center of Anhui Province Hefei 230001 P. R. China
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7
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Catalytic Performance of One-Pot Synthesized Fe-MWW Layered Zeolites (MCM-22, MCM-36, and ITQ-2) in Selective Catalytic Reduction of Nitrogen Oxides with Ammonia. Molecules 2022; 27:molecules27092983. [PMID: 35566333 PMCID: PMC9104601 DOI: 10.3390/molecules27092983] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 04/28/2022] [Accepted: 05/01/2022] [Indexed: 01/17/2023] Open
Abstract
The application of layered zeolites of MWW topology in environmental catalysis has attracted growing attention in recent years; however, only a few studies have explored their performance in selective catalytic reduction with ammonia (NH3-SCR). Thus, our work describes, for the first time, the one-pot synthesis of Fe-modified NH3-SCR catalysts supported on MCM-22, MCM-36, and ITQ-2. The calculated chemical composition of the materials was Si/Al of 30 and 5 wt.% of Fe. The reported results indicated a correlation between the arrangement of MWW layers and the form of iron in the zeolitic structure. We have observed that one-pot synthesis resulted in high dispersion of Fe3+ sites, which significantly enhanced low-temperature activity and prevented N2O generation during the reaction. All of the investigated samples exhibited almost 100% NO conversion at 250 °C. The most satisfactory activity was exhibited by Fe-modified MCM-36, since 50% of NO reduction was obtained at 150 °C for this catalyst. This effect can be explained by the abundance of isolated Fe3+ species, which are active in low-temperature NH3-SCR. Additionally, SiO2 pillars present in MCM-36 provided an additional surface for the deposition of the active phase.
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8
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Ratio of adsorptive abilities for NH3 and NOx determined SCR activity of transition-metal catalyst. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2021.128080] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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9
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Liu J, Cheng H, Zheng H, Zhang L, Liu B, Song W, Liu J, Zhu W, Li H, Zhao Z. Insight into the Potassium Poisoning Effect for Selective Catalytic Reduction of NOx with NH3 over Fe/Beta. ACS Catal 2021. [DOI: 10.1021/acscatal.1c04497] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Jixing Liu
- School of Chemistry and Chemical Engineering and Institute for Energy Research, Jiangsu University, Zhenjiang 212013, People’s Republic of China
| | - Huifang Cheng
- School of Chemistry and Chemical Engineering and Institute for Energy Research, Jiangsu University, Zhenjiang 212013, People’s Republic of China
| | - Huiling Zheng
- State Key Laboratory of Heavy Oil Processing and Beijing Key Lab of Oil & Gas Pollution Control, China University of Petroleum, Beijing 102249, People’s Republic of China
| | - Lu Zhang
- School of Chemistry and Chemical Engineering and Institute for Energy Research, Jiangsu University, Zhenjiang 212013, People’s Republic of China
| | - Bing Liu
- Department of Chemical Engineering, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, People’s Republic of China
| | - Weiyu Song
- State Key Laboratory of Heavy Oil Processing and Beijing Key Lab of Oil & Gas Pollution Control, China University of Petroleum, Beijing 102249, People’s Republic of China
| | - Jian Liu
- State Key Laboratory of Heavy Oil Processing and Beijing Key Lab of Oil & Gas Pollution Control, China University of Petroleum, Beijing 102249, People’s Republic of China
| | - Wenshuai Zhu
- School of Chemistry and Chemical Engineering and Institute for Energy Research, Jiangsu University, Zhenjiang 212013, People’s Republic of China
| | - Huaming Li
- School of Chemistry and Chemical Engineering and Institute for Energy Research, Jiangsu University, Zhenjiang 212013, People’s Republic of China
| | - Zhen Zhao
- State Key Laboratory of Heavy Oil Processing and Beijing Key Lab of Oil & Gas Pollution Control, China University of Petroleum, Beijing 102249, People’s Republic of China
- Institute of Catalysis for Energy and Environment, College of Chemistry and Chemical Engineering, Shenyang Normal University, Shenyang 110034, People’s Republic of China
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10
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Chen L, Zhang X, Zhang S, Xu L, Yuan Y, Xu L. A highly efficient Fe/Beta catalyst for the liquid-phase oxidation of naphthalene: The influence of Fe species and zeolite acidity. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2021.111646] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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11
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Jin J, Song Z, Zhang X, Mao Y. Role of silicotungstic acid on the catalytic performance over CeO
2
‐HSiW catalysts for selective catalytic reduction of NO
x
with NH
3. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6237] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Junjie Jin
- Henan University of Urban Construction Henan Key Laboratory of Water Pollution Control and Rehabilitation Technology Pingdingshan China
| | - Zhongxian Song
- Henan University of Urban Construction Henan Key Laboratory of Water Pollution Control and Rehabilitation Technology Pingdingshan China
| | - Xuejun Zhang
- College of Environmental and Safety Engineering Shenyang University of Chemical Technology Shenyang China
| | - Yanli Mao
- Henan University of Urban Construction Henan Key Laboratory of Water Pollution Control and Rehabilitation Technology Pingdingshan China
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12
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Xue H, Guo X, Meng T, Guo Q, Mao D, Wang S. Cu-ZSM-5 Catalyst Impregnated with Mn–Co Oxide for the Selected Catalytic Reduction of NO: Physicochemical Property–Catalytic Activity Relationship and In Situ DRIFTS Study for the Reaction Mechanism. ACS Catal 2021. [DOI: 10.1021/acscatal.1c01172] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hongyan Xue
- Research Institute of Applied Catalysis, School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, P. R. China
| | - Xiaoming Guo
- Research Institute of Applied Catalysis, School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, P. R. China
| | - Tao Meng
- Research Institute of Applied Catalysis, School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, P. R. China
| | - Qiangsheng Guo
- Research Institute of Applied Catalysis, School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, P. R. China
| | - Dongsen Mao
- Research Institute of Applied Catalysis, School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, P. R. China
| | - Song Wang
- Research Institute of Applied Catalysis, School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, P. R. China
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13
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The selective deposition of Fe species inside ZSM-5 for the oxidation of cyclohexane to cyclohexanone. Sci China Chem 2021. [DOI: 10.1007/s11426-020-9968-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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14
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Zichittella G, Polyhach Y, Tschaggelar R, Jeschke G, Pérez‐Ramírez J. Quantification of Redox Sites during Catalytic Propane Oxychlorination by Operando EPR Spectroscopy. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202013331] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Guido Zichittella
- Institute for Chemical and Bioengineering Department of Chemistry and Applied Biosciences ETH Zurich Vladimir-Prelog-Weg 1 8093 Zurich Switzerland
| | - Yevhen Polyhach
- Laboratory of Physical Chemistry Department of Chemistry and Applied Biosciences ETH Zurich Vladimir-Prelog-Weg 2 8093 Zurich Switzerland
| | - René Tschaggelar
- Laboratory of Physical Chemistry Department of Chemistry and Applied Biosciences ETH Zurich Vladimir-Prelog-Weg 2 8093 Zurich Switzerland
| | - Gunnar Jeschke
- Laboratory of Physical Chemistry Department of Chemistry and Applied Biosciences ETH Zurich Vladimir-Prelog-Weg 2 8093 Zurich Switzerland
| | - Javier Pérez‐Ramírez
- Institute for Chemical and Bioengineering Department of Chemistry and Applied Biosciences ETH Zurich Vladimir-Prelog-Weg 1 8093 Zurich Switzerland
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15
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Zichittella G, Polyhach Y, Tschaggelar R, Jeschke G, Pérez-Ramírez J. Quantification of Redox Sites during Catalytic Propane Oxychlorination by Operando EPR Spectroscopy. Angew Chem Int Ed Engl 2021; 60:3596-3602. [PMID: 33166088 DOI: 10.1002/anie.202013331] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Indexed: 11/06/2022]
Abstract
Identification and quantification of redox-active centers at relevant conditions for catalysis is pivotal to understand reaction mechanisms and requires development of advanced operando methods. Herein, we demonstrate operando EPR spectroscopy as an important technique to quantify the oxidation state of representative CrPO4 and EuOCl catalysts during propane oxychlorination, an attractive route for propylene production. In particular, we show that the space-time-yield of C3 H6 correlates with the amount of Cr2+ and Eu2+ ions generated over the catalysts during reaction. These results provide a powerful strategy to gather quantitative understanding of selective alkane oxidation, which could potentially be extrapolated to other functionalization approaches and operating conditions.
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Affiliation(s)
- Guido Zichittella
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, 8093, Zurich, Switzerland
| | - Yevhen Polyhach
- Laboratory of Physical Chemistry, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 2, 8093, Zurich, Switzerland
| | - René Tschaggelar
- Laboratory of Physical Chemistry, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 2, 8093, Zurich, Switzerland
| | - Gunnar Jeschke
- Laboratory of Physical Chemistry, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 2, 8093, Zurich, Switzerland
| | - Javier Pérez-Ramírez
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, 8093, Zurich, Switzerland
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16
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Liu B, Huang J, Liao Z, Zhu C, Chen Q, Sheng G, Zhu Y, Huang Y, Dong J. Integrating pore interconnectivity and adaptability in a single crystal hierarchical zeolite for liquid alkylation. AIChE J 2021. [DOI: 10.1002/aic.17177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Baoyu Liu
- School of Chemical Engineering and Light Industry, Guangzhou Key Laboratory of Clean Transportation Energy Chemistry Guangdong University of Technology Guangzhou P.R. China
| | - Jiajin Huang
- School of Chemical Engineering and Light Industry, Guangzhou Key Laboratory of Clean Transportation Energy Chemistry Guangdong University of Technology Guangzhou P.R. China
| | - Zhantu Liao
- School of Chemical Engineering and Light Industry, Guangzhou Key Laboratory of Clean Transportation Energy Chemistry Guangdong University of Technology Guangzhou P.R. China
| | - Chongzhi Zhu
- Center for Electron Microscopy, State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology and College of Chemical Engineering Zhejiang University of Technology Hangzhou P.R. China
| | - Qiaoli Chen
- Center for Electron Microscopy, State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology and College of Chemical Engineering Zhejiang University of Technology Hangzhou P.R. China
| | - Guan Sheng
- Advanced Membranes and Porous Materials Center, Physical Science and Engineering King Abdullah University of Science and Technology Thuwal Kingdom of Saudi Arabia
| | - Yihan Zhu
- Center for Electron Microscopy, State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology and College of Chemical Engineering Zhejiang University of Technology Hangzhou P.R. China
| | - Yi Huang
- School of Engineering Institute for Materials & Processes (IMP), The University of Edinburgh Edinburgh UK
| | - Jinxiang Dong
- School of Chemical Engineering and Light Industry, Guangzhou Key Laboratory of Clean Transportation Energy Chemistry Guangdong University of Technology Guangzhou P.R. China
- College of Chemistry and Chemical Engineering Taiyuan University of Technology Taiyuan P.R. China
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17
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Zhang J, Zeng J, Wu J, Yue Y, Zhang J, Qian G. A plasma thermal slag-derived from hazardous waste has a born hydrothermal stability. JOURNAL OF HAZARDOUS MATERIALS 2021; 401:123444. [PMID: 32763719 DOI: 10.1016/j.jhazmat.2020.123444] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 06/12/2020] [Accepted: 07/07/2020] [Indexed: 06/11/2023]
Abstract
Hydrothermal instability restricts performances of silica-based catalysts, which have wide applications in both industry and environment. For the first time, plasma-thermal slag was revealed to be a catalyst with a born hydrothermal stability in selective catalytic reduction of nitric oxide. The slag catalyst removed 98.5 % of NO with a high N2 selectivity (> 95 %) at 200 °C. After a hydrothermal treatment at 900 °C, the activity of the slag only decreased to 84.0 %. According to characterizations of XRD, HTREM, XPS, and EPR, active metals existed in coordination states in the slag at first. Under hydrothermal conditions, these species transformed to short-range single crystals, which were hindered from sintering by surrounded Si-O bands. At the same time, in-situ DRIFT indicated that more Brønsted and Lewis acid sites were formed. Hence, enough active sties were reserved for effective catalytic reduction of nitric oxide. The main result of this work helps us to understand hydrothermal stability of a catalyst. What's more, the high-value-added utilization of plasma-thermal slag is in favor of the development of hazardous-waste treatment.
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Affiliation(s)
- Jin Zhang
- SHU Center of Green Urban Mining & Industry Ecology, School of Environmental and Chemical Engineering, Shanghai University, No. 381 Nanchen Road, Shanghai 200444, PR China.
| | - Jiachen Zeng
- SHU Center of Green Urban Mining & Industry Ecology, School of Environmental and Chemical Engineering, Shanghai University, No. 381 Nanchen Road, Shanghai 200444, PR China; CCCC National Engineering Research Center of Dredging Technology and Equipment Co., Ltd, 985 Pudong North Road, Shanghai, 201208, PR China.
| | - Jianzhong Wu
- MGI of Shanghai University, Xiapu Town, Xiangdong District, Pingxiang City, Jiangxi, 337022, PR China.
| | - Yang Yue
- MGI of Shanghai University, Xiapu Town, Xiangdong District, Pingxiang City, Jiangxi, 337022, PR China.
| | - Jia Zhang
- SHU Center of Green Urban Mining & Industry Ecology, School of Environmental and Chemical Engineering, Shanghai University, No. 381 Nanchen Road, Shanghai 200444, PR China; MGI of Shanghai University, Xiapu Town, Xiangdong District, Pingxiang City, Jiangxi, 337022, PR China.
| | - Guangren Qian
- SHU Center of Green Urban Mining & Industry Ecology, School of Environmental and Chemical Engineering, Shanghai University, No. 381 Nanchen Road, Shanghai 200444, PR China; MGI of Shanghai University, Xiapu Town, Xiangdong District, Pingxiang City, Jiangxi, 337022, PR China.
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18
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Wang Q, Guan X, Kang L, Wang B, Sheng L, Wang FR. Polyphenylene as an Active Support for Ru-Catalyzed Hydrogenolysis of 5-Hydroxymethylfurfural. ACS APPLIED MATERIALS & INTERFACES 2020; 12:53712-53718. [PMID: 33210901 DOI: 10.1021/acsami.0c11888] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Selective transformation of biomass feedstocks to platform molecules is a key pursuit for sustainable chemical production. Compared to petrochemical processes, biomass transformation requires the defunctionalization of highly polar molecules at relatively low temperatures. As a result, catalysts based on functional organic polymers may play a prominent role. Targeting the hydrogenolysis of the platform chemical 5-hydroxymethylfurfural (5-HMF), here, we design a polyphenylene (PPhen) framework with purely sp2-hybridized carbons that can isolate 5-HMF via π-π stacking, preventing hemiacetal and humin formation. With good swellability, the PPhen framework here has successfully supported and dispersed seven types of metal particles via a newly developed swelling-impregnation method, including Ru, Pt, Au, Fe, Co, Ni, and Cu. Ru/PPhen is studied for 5-HMF hydrogenolysis, achieving a 92% yield of 2,5-dimethylfuran (DMF) under mild conditions, outperforming the state-of-the-art catalysts reported in the literature. In addition, PPhen helps perform a solventless reaction, achieving direct 5-HMF to DMF conversion in the absence of any liquid solvent or reagent. This approach in designing support-reactant/solvent/metal interactions will play an important role in surface catalysis.
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Affiliation(s)
- Qiming Wang
- Department of Chemical Engineering, University College London, Torrington Place, WC1E 7JE London, U.K
| | - Xuze Guan
- Department of Chemical Engineering, University College London, Torrington Place, WC1E 7JE London, U.K
| | - Liqun Kang
- Department of Chemical Engineering, University College London, Torrington Place, WC1E 7JE London, U.K
| | - Bolun Wang
- Department of Chemical Engineering, University College London, Torrington Place, WC1E 7JE London, U.K
| | - Lin Sheng
- Department of Chemical Engineering, University College London, Torrington Place, WC1E 7JE London, U.K
| | - Feng Ryan Wang
- Department of Chemical Engineering, University College London, Torrington Place, WC1E 7JE London, U.K
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19
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Watts AE, Lozinska MM, Slawin AMZ, Mayoral A, Dawson DM, Ashbrook SE, Bode BE, Dugulan AI, Shannon MD, Cox PA, Turrina A, Wright PA. Site‐Specific Iron Substitution in STA‐28, a Large Pore Aluminophosphate Zeotype Prepared by Using 1,10‐Phenanthrolines as Framework‐Bound Templates. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202005558] [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)
- Abigail E. Watts
- EaStCHEM School of Chemistry University of St Andrews Purdie Building North Haugh St Andrews, Fife KY16 9ST UK
| | - Magdalena M. Lozinska
- EaStCHEM School of Chemistry University of St Andrews Purdie Building North Haugh St Andrews, Fife KY16 9ST UK
| | - Alexandra M. Z. Slawin
- EaStCHEM School of Chemistry University of St Andrews Purdie Building North Haugh St Andrews, Fife KY16 9ST UK
| | - Alvaro Mayoral
- Instituto de Ciencia de Materiales de Aragon (ICMA) CSIC Universidad de Zaragoza Mariano Esquillor 50018 Zaragoza Spain
- Center for High-Resolution Electron Microscopy (CħEM) School of Physical Science and Technology ShanghaiTech University 393 Middle Huaxia Road Pudong Shanghai 201210 China
| | - Daniel M. Dawson
- EaStCHEM School of Chemistry University of St Andrews Purdie Building North Haugh St Andrews, Fife KY16 9ST UK
| | - Sharon E. Ashbrook
- EaStCHEM School of Chemistry University of St Andrews Purdie Building North Haugh St Andrews, Fife KY16 9ST UK
| | - Bela E. Bode
- EaStCHEM School of Chemistry University of St Andrews Purdie Building North Haugh St Andrews, Fife KY16 9ST UK
| | - A. Iulian Dugulan
- Fundamental Aspects of Materials and Energy Group Delft University of Technology 2629 JB Delft The Netherlands
| | - Mervyn D. Shannon
- Johnson Matthey Technology Centre Chilton P.O. Box 1, Belasis Avenue Billingham TS23 1LB UK
| | - Paul A. Cox
- School of Pharmacy and Biomedical Sciences University of Portsmouth St. Michael's Building, White Swan Road Portsmouth PO1 UK
| | - Alessandro Turrina
- Johnson Matthey Technology Centre Chilton P.O. Box 1, Belasis Avenue Billingham TS23 1LB UK
| | - Paul A. Wright
- EaStCHEM School of Chemistry University of St Andrews Purdie Building North Haugh St Andrews, Fife KY16 9ST UK
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20
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Watts AE, Lozinska MM, Slawin AMZ, Mayoral A, Dawson DM, Ashbrook SE, Bode BE, Dugulan AI, Shannon MD, Cox PA, Turrina A, Wright PA. Site-Specific Iron Substitution in STA-28, a Large Pore Aluminophosphate Zeotype Prepared by Using 1,10-Phenanthrolines as Framework-Bound Templates. Angew Chem Int Ed Engl 2020; 59:15186-15190. [PMID: 32432353 PMCID: PMC7496423 DOI: 10.1002/anie.202005558] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Indexed: 12/03/2022]
Abstract
An AlPO4 zeotype has been prepared using the aromatic diamine 1,10-phenanthroline and some of its methylated analogues as templates. In each case the two template N atoms bind to a specific framework Al site to expand its coordination to the unusual octahedral AlO4 N2 environment. Furthermore, using this framework-bound template, Fe atoms can be included selectively at this site in the framework by direct synthesis, as confirmed by annular dark field scanning transmission electron microscopy and Rietveld refinement. Calcination removes the organic molecules to give large pore framework solids, with BET surface areas up to 540 m2 g-1 and two perpendicular sets of channels that intersect to give pore space connected by 12-ring openings along all crystallographic directions.
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Affiliation(s)
- Abigail E. Watts
- EaStCHEM School of ChemistryUniversity of St AndrewsPurdie BuildingNorth HaughSt Andrews, FifeKY16 9STUK
| | - Magdalena M. Lozinska
- EaStCHEM School of ChemistryUniversity of St AndrewsPurdie BuildingNorth HaughSt Andrews, FifeKY16 9STUK
| | - Alexandra M. Z. Slawin
- EaStCHEM School of ChemistryUniversity of St AndrewsPurdie BuildingNorth HaughSt Andrews, FifeKY16 9STUK
| | - Alvaro Mayoral
- Instituto de Ciencia de Materiales de Aragon (ICMA)CSICUniversidad de ZaragozaMariano Esquillor50018ZaragozaSpain
- Center for High-Resolution Electron Microscopy (CħEM)School of Physical Science and TechnologyShanghaiTech University393 Middle Huaxia RoadPudongShanghai201210China
| | - Daniel M. Dawson
- EaStCHEM School of ChemistryUniversity of St AndrewsPurdie BuildingNorth HaughSt Andrews, FifeKY16 9STUK
| | - Sharon E. Ashbrook
- EaStCHEM School of ChemistryUniversity of St AndrewsPurdie BuildingNorth HaughSt Andrews, FifeKY16 9STUK
| | - Bela E. Bode
- EaStCHEM School of ChemistryUniversity of St AndrewsPurdie BuildingNorth HaughSt Andrews, FifeKY16 9STUK
| | - A. Iulian Dugulan
- Fundamental Aspects of Materials and Energy GroupDelft University of Technology2629 JBDelftThe Netherlands
| | - Mervyn D. Shannon
- Johnson Matthey Technology CentreChilton P.O. Box 1, Belasis AvenueBillinghamTS23 1LBUK
| | - Paul A. Cox
- School of Pharmacy and Biomedical SciencesUniversity of PortsmouthSt. Michael's Building, White Swan RoadPortsmouthPO1UK
| | - Alessandro Turrina
- Johnson Matthey Technology CentreChilton P.O. Box 1, Belasis AvenueBillinghamTS23 1LBUK
| | - Paul A. Wright
- EaStCHEM School of ChemistryUniversity of St AndrewsPurdie BuildingNorth HaughSt Andrews, FifeKY16 9STUK
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21
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Influence of calcination temperature on the evolution of Fe species over Fe-SSZ-13 catalyst for the NH3-SCR of NO. Catal Today 2020. [DOI: 10.1016/j.cattod.2020.06.085] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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22
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Duan CP, Guo RT, Wu GL, Pan WG. Selective catalytic reduction of NO x by NH 3 over CeVO 4-CeO 2 nanocomposite. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:22818-22828. [PMID: 32323228 DOI: 10.1007/s11356-020-08875-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Accepted: 04/13/2020] [Indexed: 06/11/2023]
Abstract
In this study, it was found that the CeVO4-CeO2 nanocomposite possessed remarkably selective catalytic reduction (SCR) performance and wider active temperature scope. And, the promotion principle was explored based on BET, XRD, XPS, H2-temperature-programmed reduction, NH3-temperature-programmed desorption, and in situ diffuse reflectance infrared Fourier transform (DRIFT) techniques. The characterization outcomes manifested that the CeVO4-CeO2 nanocomposite could inhibit its crystallinity and enhance the concentrations of chemisorbed oxygen species and Ce3+, which was advantageous to the SCR process. Moreover, the in situ DRIFT technique manifested that the NH3-SCR reaction over Ce0.75V0.25Oy was enhanced effectively through the mechanism of L-H.
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Affiliation(s)
- Chao-Peng Duan
- School of Energy Source and Mechanical Engineering, Shanghai University of Electric Power, Shanghai, 200090, People's Republic of China
- Shanghai Engineering Research Center of Power Generation Environment Protection, Shanghai, 200090, People's Republic of China
| | - Rui-Tang Guo
- School of Energy Source and Mechanical Engineering, Shanghai University of Electric Power, Shanghai, 200090, People's Republic of China.
- Shanghai Engineering Research Center of Power Generation Environment Protection, Shanghai, 200090, People's Republic of China.
| | - Gui-Lin Wu
- School of Energy Source and Mechanical Engineering, Shanghai University of Electric Power, Shanghai, 200090, People's Republic of China
- Shanghai Engineering Research Center of Power Generation Environment Protection, Shanghai, 200090, People's Republic of China
| | - Wei-Guo Pan
- School of Energy Source and Mechanical Engineering, Shanghai University of Electric Power, Shanghai, 200090, People's Republic of China.
- Shanghai Engineering Research Center of Power Generation Environment Protection, Shanghai, 200090, People's Republic of China.
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Rabeah J, Briois V, Adomeit S, La Fontaine C, Bentrup U, Brückner A. Multivariate Analysis of Coupled Operando EPR/XANES/EXAFS/UV-Vis/ATR-IR Spectroscopy: A New Dimension for Mechanistic Studies of Catalytic Gas-Liquid Phase Reactions. Chemistry 2020; 26:7395-7404. [PMID: 32118340 PMCID: PMC7317854 DOI: 10.1002/chem.202000436] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Indexed: 01/12/2023]
Abstract
Operando EPR, XANES/EXAFS, UV‐Vis and ATR‐IR spectroscopic methods have been coupled for the first time in the same experimental setup for investigation of unclear mechanistic aspects of selective aerobic oxidation of benzyl alcohol by a Cu/TEMPO catalytic system (TEMPO=2,2,6,6‐tetramethylpiperidinyloxyl). By multivariate curve resolution with alternating least‐squares fitting (MCR‐ALS) of simultaneously recorded XAS and UV‐Vis data sets, it was found that an initially formed (bpy)(NMI)CuI‐ complex (bpy=2,2′‐bipyridine, NMI=N‐methylimidazole ) is converted to two different CuII species, a mononuclear (bpy)(NMI)(CH3CN)CuII‐OOH species detectable by EPR and ESI‐MS, and an EPR‐silent dinuclear (CH3CN)(bpy)(NMI)CuII(μ‐OH)2⋅CuII (bpy)(NMI) complex. The latter is cleaved in the further course of reaction into (bpy)(NMI)(HOO)CuII‐TEMPO monomers that are also EPR‐silent due to dipolar interaction with bound TEMPO. Both Cu monomers and the Cu dimer are catalytically active in the initial phase of the reaction, yet the dimer is definitely not a major active species nor a resting state since it is irreversibly cleaved in the course of the reaction while catalytic activity is maintained. Gradual formation of non‐reducible CuII leads to slight deactivation at extended reaction times.
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Affiliation(s)
- Jabor Rabeah
- Leibniz-Institut für Katalyse an der Universität Rostock, Albert-Einstein-Str. 29a, 18059, Rostock, Germany
| | - Valérie Briois
- Synchrotron SOLEIL, L'Orme des Merisiers, BP48, Saint-Aubin, 91192 Gif-sur Yvette, France
| | - Sven Adomeit
- Leibniz-Institut für Katalyse an der Universität Rostock, Albert-Einstein-Str. 29a, 18059, Rostock, Germany
| | - Camille La Fontaine
- Synchrotron SOLEIL, L'Orme des Merisiers, BP48, Saint-Aubin, 91192 Gif-sur Yvette, France
| | - Ursula Bentrup
- Leibniz-Institut für Katalyse an der Universität Rostock, Albert-Einstein-Str. 29a, 18059, Rostock, Germany
| | - Angelika Brückner
- Leibniz-Institut für Katalyse an der Universität Rostock, Albert-Einstein-Str. 29a, 18059, Rostock, Germany
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24
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Wang Y, Ji X, Meng H, Qu L, Wu X. Fabrication of high-silica Cu/ZSM-5 with confinement encapsulated Cu-based active species for NH3-SCR. CATAL COMMUN 2020. [DOI: 10.1016/j.catcom.2020.105969] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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25
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Grünert W, Kydala Ganesha P, Ellmers I, Pérez Vélez R, Huang H, Bentrup U, Schünemann V, Brückner A. Active Sites of the Selective Catalytic Reduction of NO by NH3 over Fe-ZSM-5: Combining Reaction Kinetics with Postcatalytic Mössbauer Spectroscopy at Cryogenic Temperatures. ACS Catal 2020. [DOI: 10.1021/acscatal.9b04627] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Wolfgang Grünert
- Lehrstuhl für Technische Chemie, Ruhr-Universität Bochum, D-44780 Bochum, Germany
| | | | - Inga Ellmers
- Lehrstuhl für Technische Chemie, Ruhr-Universität Bochum, D-44780 Bochum, Germany
| | - Roxana Pérez Vélez
- Leibniz-Institut für Katalyse e. V., Albert-Einstein-Straße 29a, D-18059 Rostock, Germany
| | - Heming Huang
- Department of Physics, University of Kaiserslautern, D-67663 Kaiserslautern, Germany
| | - Ursula Bentrup
- Leibniz-Institut für Katalyse e. V., Albert-Einstein-Straße 29a, D-18059 Rostock, Germany
| | - Volker Schünemann
- Department of Physics, University of Kaiserslautern, D-67663 Kaiserslautern, Germany
| | - Angelika Brückner
- Leibniz-Institut für Katalyse e. V., Albert-Einstein-Straße 29a, D-18059 Rostock, Germany
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Experimental Study on SO2-to-SO3 Conversion Over Fe-Modified Mn/ZSM-5 Catalysts During the Catalytic Reduction of NOx. CATALYSIS SURVEYS FROM ASIA 2019. [DOI: 10.1007/s10563-019-09284-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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27
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Quantum Chemical Study on the Reaction Mechanism of Fast SCR Catalyzed by ZSM-5 Doped with Mn/Co–Al/Ce. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2019. [DOI: 10.1007/s13369-019-03856-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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28
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High-selectively determination of nitric oxide on nanoporous gold electrode. J Solid State Electrochem 2019. [DOI: 10.1007/s10008-019-04259-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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29
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High-Efficiency Catalytic Conversion of NOx by the Synergy of Nanocatalyst and Plasma: Effect of Mn-Based Bimetallic Active Species. Catalysts 2019. [DOI: 10.3390/catal9010103] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Three typical Mn-based bimetallic nanocatalysts of Mn−Fe/TiO2, Mn−Co/TiO2, Mn−Ce/TiO2 were synthesized via the hydrothermal method to reveal the synergistic effects of dielectric barrier discharge (DBD) plasma and bimetallic nanocatalysts on NOx catalytic conversion. The plasma-catalyst hybrid catalysis was investigated compared with the catalytic effects of plasma alone and nanocatalyst alone. During the catalytic process of catalyst alone, the catalytic activities of all tested catalysts were lower than 20% at ambient temperature. While in the plasma-catalyst hybrid catalytic process, NOx conversion significantly improved with discharge energy enlarging. The maximum NOx conversion of about 99.5% achieved over Mn−Ce/TiO2 under discharge energy of 15 W·h/m3 at ambient temperature. The reaction temperature had an inhibiting effect on plasma-catalyst hybrid catalysis. Among these three Mn-based bimetallic nanocatalysts, Mn−Ce/TiO2 displayed the optimal catalytic property with higher catalytic activity and superior selectivity in the plasma-catalyst hybrid catalytic process. Furthermore, the physicochemical properties of these three typical Mn-based bimetallic nanocatalysts were analyzed by N2 adsorption, Transmission Electron Microscope (TEM), X-ray diffraction (XRD), H2-temperature-programmed reduction (TPR), NH3-temperature-programmed desorption (TPD), and X-ray photoelectron spectroscopy (XPS). The multiple characterizations demonstrated that the plasma-catalyst hybrid catalytic performance was highly dependent on the phase compositions. Mn−Ce/TiO2 nanocatalyst presented the optimal structure characteristic among all tested samples, with the largest surface area, the minished particle sizes, the reduced crystallinity, and the increased active components distributions. In the meantime, the ratios of Mn4+/(Mn2+ + Mn3+ + Mn4+) in the Mn−Ce/TiO2 sample was the highest, which was beneficial to plasma-catalyst hybrid catalysis. Generally, it was verified that the plasma-catalyst hybrid catalytic process with the Mn-based bimetallic nanocatalysts was an effective approach for high-efficiency catalytic conversion of NOx, especially at ambient temperature.
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Wang XT, Hu HP, Zhang XY, Su XX, Yang XD. Effect of iron loading on the performance and structure of Fe/ZSM-5 catalyst for the selective catalytic reduction of NO with NH 3. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:1706-1715. [PMID: 30448951 DOI: 10.1007/s11356-018-3513-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Accepted: 10/16/2018] [Indexed: 06/09/2023]
Abstract
A series of Fe/ZSM-5 catalysts with different Fe contents were prepared by impregnation method. The catalysts were characterized by TEM, XRD, H2 temperature-programed reduction (H2-TPR), temperature-programed desorption of ammonia (NH3-TPD), and in situ diffuse-reflectance infrared Fourier transform spectroscopy (DRIFTS), and the catalytic activity test was also carried out on selective catalytic reduction (SCR) denitration device. Results showed that the single metal iron-supported ZSM-5 catalyst has high deNOx activity in the medium-high temperature range, and the optimal loading of Fe active component is 10 wt%; the deNOx efficiency over 80% at the range of 350-450 °C and 431 °C reaches the maximum of 96.91%. Iron species can be finely dispersed on the surface of the carrier as amorphous oxides, and the crystalline structure of zeolite is retained. The significant redox performance, highly dispersed nanoparticles, and rich Lewis acid sites on the surface of catalyst are favorable for the SCR denitration reaction. Fe/ZSM-5 10 wt% catalyst has rich Lewis acid sites and less B acid sites and Lewis acidic sites play an important role during the reaction. Only Eley-Rideal (E-R) mechanism existed during the NH3-SCR reaction process, and there is no denitration reaction being accomplished by L-H mechanism at 150 °C.
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Affiliation(s)
- Xue-Tao Wang
- Department of Energy and Power Engineering, Henan University of Science and Technology, Luoyang, 471003, China.
| | - Hai-Peng Hu
- Department of Energy and Power Engineering, Henan University of Science and Technology, Luoyang, 471003, China
| | - Xing-Yu Zhang
- National Engineering Lab of Coal-fired Pollution Emission Reduction, Shandong University, Jinan, 250061, China
| | - Xiao-Xin Su
- Department of Energy and Power Engineering, Henan University of Science and Technology, Luoyang, 471003, China
| | - Xiao-Dong Yang
- Department of Energy and Power Engineering, Henan University of Science and Technology, Luoyang, 471003, China
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Structure–Activity Relationship Study of Mn/Fe Ratio Effects on Mn−Fe−Ce−Ox/γ-Al2O3 Nanocatalyst for NO Oxidation and Fast SCR Reaction. Catalysts 2018. [DOI: 10.3390/catal8120642] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
A series of Mn−Fe−Ce−Ox/γ-Al2O3 nanocatalysts were synthesized with different Mn/Fe ratios for the catalytic oxidation of NO into NO2 and the catalytic elimination of NOx via fast selective catalytic reduction (SCR) reaction. The effects of Mn/Fe ratio on the physicochemical properties of the samples were analyzed by means of various techniques including N2 adsorption, scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), H2-temperature-programmed reduction (TPR), NH3-temperature-programmed desorption (TPD) and NO-TPD, meanwhile, their catalytic performance was also evaluated and compared. Multiple characterizations revealed that the catalytic performance was highly dependent on the phase composition. The Mn15Fe15−Ce/Al sample with the Mn/Fe molar ratio of 1.0 presented the optimal structure characteristic among all tested samples, with the largest surface area, increased active components distributions, the reduced crystallinity and diminished particle sizes. In the meantime, the ratios of Mn4+/Mnn+, Fe2+/Fen+ and Ce3+/Cen+ in Mn15Fe15−Ce/Al samples were improved, which could enhance the redox capacity and increase the quantity of chemisorbed oxygen and oxygen vacancy, thus facilitating NO oxidation into NO2 and eventually promoting the fast SCR reaction. In accord with the structure results, the Mn15Fe15−Ce/Al sample exhibited the highest NO oxidation rate of 64.2% at 350 °C and the broadest temperature window of 75–350 °C with the NOx conversion >90%. Based on the structure–activity relationship discussion, the catalytic mechanism over the Mn−Fe−Ce ternary components supported by γ-Al2O3 were proposed. Overall, it was believed that the optimization of Mn/Fe ratio in Mn−Fe−Ce/Al nanocatalyst was an extremely effective method to improve the structure–activity relationships for NO pre-oxidation and the fast SCR reaction.
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32
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Yang X, Xiao H, Liu J, Wan Z, Wang T, Sun B. Influence of Ce-doping on MnOx-ZSM-5 catalysts for the selective catalytic reduction of NO/NO2 with NH3. REACTION KINETICS MECHANISMS AND CATALYSIS 2018. [DOI: 10.1007/s11144-018-1460-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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33
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Granger P, Siaka HW, Umbarkar SB. What News in the Surface Chemistry of Bulk and Supported Vanadia Based SCR-Catalysts: Improvements in their Resistance to Poisoning and Thermal Sintering. CHEM REC 2018; 19:1813-1828. [PMID: 30335224 DOI: 10.1002/tcr.201800092] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Accepted: 09/28/2018] [Indexed: 02/01/2023]
Abstract
This paper reports a short review on the impact of poisoning effects and thermal aging on the reactivity of surface vanadate species on benchmark V2 O5 -WO3 /TiO2 Selective-Catalytic-Reduction catalysts. A renewed interest of this SCR technology is related to its diversification notably as after-treatment systems to treat the exhaust from Diesel engines with higher running temperature especially when SCR catalysts are coated on Diesel Particulates Filters. Particular attention is also paid to poisoning effects in conjunction with the progressive replacement of fossil fuels by bio-fuels containing alkaline contaminants which drastically deactivate the catalyst through neutralization of strong acid sites. Most of the investigations show that better insight into the mechanisms of poisoning and aging processes is needed especially to understand the relative sensibility of various vanadate species. This could provide original guidelines to catalyst preparation and or the developments of more stable bulk systems as exemplified.
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Affiliation(s)
- Pascal Granger
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, F-, 59000, Lille, France
| | - Hermann W Siaka
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, F-, 59000, Lille, France
| | - Shubhangi B Umbarkar
- CSIR-National Chemical Laboratory, Dr.Homi Bhabha Road, Pune-, 411008, India.,Academy of Scientific and Innovative Research, CSIR, Anusandhan Bhawan, New Delhi-, 110 001, India
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34
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Gao Y, Luan T, Zhang W, Li H. The promotional effects of cerium on the catalytic properties of Al2O3-supported MnFeOx for NO oxidation and fast SCR reaction. RESEARCH ON CHEMICAL INTERMEDIATES 2018. [DOI: 10.1007/s11164-018-3636-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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35
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Li S, Wang Y, Wu T, Schneider WF. First-Principles Analysis of Site- and Condition-Dependent Fe Speciation in SSZ-13 and Implications for Catalyst Optimization. ACS Catal 2018. [DOI: 10.1021/acscatal.8b02107] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Sichi Li
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Yujia Wang
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Tong Wu
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - William F. Schneider
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
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36
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Negri C, Hammershøi PS, Janssens TVW, Beato P, Berlier G, Bordiga S. Investigating the Low Temperature Formation of Cu II -(N,O) Species on Cu-CHA Zeolites for the Selective Catalytic Reduction of NO x. Chemistry 2018; 24:12044-12053. [PMID: 30019783 DOI: 10.1002/chem.201802769] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Revised: 07/16/2018] [Indexed: 11/07/2022]
Abstract
In this work, we show the potentiality of operando FTIR spectroscopy to follow the formation of CuII -(N,O) species on Cu exchanged chabazite zeolites (Cu-CHA), active for the selective catalytic reduction of NOx with NH3 (NH3 -SCR). In particular, we investigated the reaction of NO and O2 at low temperature (200 and 50 °C) on a series of Cu-CHA zeolites with different composition (Si/Al and Cu/Al ratios), to investigate the nature of the formed copper nitrates, which have been proposed to be key intermediates in the oxidation part of the SCR cycle. Our results show that chelating bidentate nitrates are the main structures formed at 200 °C. At lower temperature a mixture of chelating and monodentate nitrates are formed, together with the nitrosonium ion NO+ , whose amount was found to be proportional to the zeolite Brønsted site concentration. Nitrates were found to mainly form with CuII ions stabilized by one negative framework charge (Z), Z-[Cu(OH]I or Z-[Cu(O2 ]I , without involvement of Z2 -CuII ones. This evidence, together with the absence of bridging nitrates in samples with high probability for Cu-Cu pairs, indicate that the nitrate ligands are not able to mobilize copper ions, at variance with what recently reported for NH3 . Finally, water was found to replace preformed chelating copper nitrates and deplete NO+ (though with different kinetics) at both temperatures, while favouring the presence of monodentate ones.
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Affiliation(s)
- Chiara Negri
- Department of Chemistry, INSTM Reference Center and NIS Center, University of Turin, Address Via Giuria 7, I-10135, Turin, Italy
| | - Peter S Hammershøi
- Umicore Denmark ApS, Nøjsomhedsvej 20, 2800, Kgs. Lyngby, Denmark.,Department of Chemical and Biochemical Engineering, Technical University of Denmark, Lyngby, Denmark
| | - Ton V W Janssens
- Umicore Denmark ApS, Nøjsomhedsvej 20, 2800, Kgs. Lyngby, Denmark
| | | | - Gloria Berlier
- Department of Chemistry, INSTM Reference Center and NIS Center, University of Turin, Address Via Giuria 7, I-10135, Turin, Italy
| | - Silvia Bordiga
- Department of Chemistry, INSTM Reference Center and NIS Center, University of Turin, Address Via Giuria 7, I-10135, Turin, Italy
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37
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Mu J, Li X, Sun W, Fan S, Wang X, Wang L, Qin M, Gan G, Yin Z, Zhang D. Enhancement of Low-Temperature Catalytic Activity over a Highly Dispersed Fe–Mn/Ti Catalyst for Selective Catalytic Reduction of NOx with NH3. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b01335] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jincheng Mu
- State Key Laboratory of Fine Chemicals, Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China
| | - Xinyong Li
- State Key Laboratory of Fine Chemicals, Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China
| | - Wenbo Sun
- State Key Laboratory of Fine Chemicals, Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China
| | - Shiying Fan
- State Key Laboratory of Fine Chemicals, Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China
| | - Xinyang Wang
- State Key Laboratory of Fine Chemicals, Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China
| | - Liang Wang
- State Key Laboratory of Fine Chemicals, Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China
| | - Meichun Qin
- State Key Laboratory of Fine Chemicals, Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China
| | - Guoqiang Gan
- State Key Laboratory of Fine Chemicals, Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China
| | - Zhifan Yin
- State Key Laboratory of Fine Chemicals, Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China
| | - Dongke Zhang
- Centre for Energy (M473), The University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia
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38
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Liu J, Liu J, Zhao Z, Duan Z, Wei Y, Song W, Sun Y. Fe/Beta@Meso-CeO2 Nanostructure Core–Shell Catalyst: Remarkable Enhancement of Potassium Poisoning Resistance. CATALYSIS SURVEYS FROM ASIA 2018. [DOI: 10.1007/s10563-018-9251-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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39
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Mechanistic investigation of the different poisoning mechanisms of Cl and P on Mn/TiO 2 catalyst for selective catalytic reduction of NO x with NH 3. J Taiwan Inst Chem Eng 2017. [DOI: 10.1016/j.jtice.2017.07.013] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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40
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Auerbach H, Giammanco GE, Schünemann V, Ostrowski AD, Carrano CJ. Mössbauer Spectroscopic Characterization of Iron(III)–Polysaccharide Coordination Complexes: Photochemistry, Biological, and Photoresponsive Materials Implications. Inorg Chem 2017; 56:11524-11531. [DOI: 10.1021/acs.inorgchem.7b00686] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Hendrik Auerbach
- Department of Physics, University of Kaiserslautern, 67663 Kaiserslautern, Germany
| | - Giuseppe E. Giammanco
- Department of Chemistry, Bowling Green State University, Bowling
Green, Ohio 43403 United States
| | - Volker Schünemann
- Department of Physics, University of Kaiserslautern, 67663 Kaiserslautern, Germany
| | - Alexis D. Ostrowski
- Department of Chemistry, Bowling Green State University, Bowling
Green, Ohio 43403 United States
| | - Carl J. Carrano
- Department of Chemistry and Biochemistry, San Diego State University, San Diego, California 92182-1030, United States
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41
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The Role of NO2 in the Fast NH3-SCR of NOx: A Combined In Situ FTIR and EPR Spectroscopic Study. Top Catal 2017. [DOI: 10.1007/s11244-017-0840-y] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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42
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Wen Z, Du M, Li Y, Wang Z, Xu J, Cen K. Quantum chemistry study on the oxidation of NO catalyzed by ZSM5 supported Mn/Co–Al/Ce. JOURNAL OF THEORETICAL & COMPUTATIONAL CHEMISTRY 2017. [DOI: 10.1142/s0219633617500444] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The detailed mechanism of NO oxidation catalyzed by ZSM5 supported Mn/Co–Al/Ce is investigated and revealed by Quantum Chemistry Calculation. A three-step catalytic mechanism for NO oxidation is proposed and studied. Theoretical results show that, the activate energies of reactions catalyzed by ZSM-5 supported Mn/Co (71.1[Formula: see text]kJ/mol/80.6[Formula: see text]kJ/mol) are much lower than that obtained from the direct NO oxidation. This indicates that the ZSM-5 supported Mn/Co has an obvious catalytic effect. When the active center Si is replaced by Al and Ce, the activation energies are further decreased to about 40[Formula: see text]kJ/mol. This indicates that the doping of Al and Ce can obviously improve the catalytic effect. The theoretical study illustrates that the catalysts for NO oxidation not only relate to the supported transition metal such as Co and Mn, but also highly relate to the activity centers such as Al and Ce.
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Affiliation(s)
- Zhengcheng Wen
- College of Science, Hangzhou Dianzi University, Hangzhou 310018, P. R. China
| | - Mengmeng Du
- College of Science, Hangzhou Dianzi University, Hangzhou 310018, P. R. China
| | - Yuan Li
- College of Science, Hangzhou Dianzi University, Hangzhou 310018, P. R. China
| | - Zhihua Wang
- State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, P. R. China
| | - Jiangrong Xu
- College of Science, Hangzhou Dianzi University, Hangzhou 310018, P. R. China
| | - Kefa Cen
- State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, P. R. China
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43
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Kovarik L, Washton NM, Kukkadapu R, Devaraj A, Wang A, Wang Y, Szanyi J, Peden CHF, Gao F. Transformation of Active Sites in Fe/SSZ-13 SCR Catalysts during Hydrothermal Aging: A Spectroscopic, Microscopic, and Kinetics Study. ACS Catal 2017. [DOI: 10.1021/acscatal.6b03679] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Libor Kovarik
- Environmental
Molecular Sciences Laboratory, Pacific Northwest National Laboratory, P.O. Box 999, Richland, Washington 99354, United States
| | - Nancy M. Washton
- Environmental
Molecular Sciences Laboratory, Pacific Northwest National Laboratory, P.O. Box 999, Richland, Washington 99354, United States
| | - Ravi Kukkadapu
- Environmental
Molecular Sciences Laboratory, Pacific Northwest National Laboratory, P.O. Box 999, Richland, Washington 99354, United States
| | - Arun Devaraj
- Environmental
Molecular Sciences Laboratory, Pacific Northwest National Laboratory, P.O. Box 999, Richland, Washington 99354, United States
| | - Aiyong Wang
- Institute
for Integrated Catalysis, Pacific Northwest National Laboratory, P.O. Box 999, Richland, Washington 99354, United States
| | - Yilin Wang
- Institute
for Integrated Catalysis, Pacific Northwest National Laboratory, P.O. Box 999, Richland, Washington 99354, United States
| | - Janos Szanyi
- Institute
for Integrated Catalysis, Pacific Northwest National Laboratory, P.O. Box 999, Richland, Washington 99354, United States
| | - Charles H. F. Peden
- Institute
for Integrated Catalysis, Pacific Northwest National Laboratory, P.O. Box 999, Richland, Washington 99354, United States
| | - Feng Gao
- Institute
for Integrated Catalysis, Pacific Northwest National Laboratory, P.O. Box 999, Richland, Washington 99354, United States
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44
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Activating effect of cerium in hydrotalcite derived Cu–Mg–Al catalysts for selective ammonia oxidation and the selective reduction of NO with ammonia. REACTION KINETICS MECHANISMS AND CATALYSIS 2017. [DOI: 10.1007/s11144-017-1141-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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45
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Yuan E, Wu G, Dai W, Guan N, Li L. One-pot construction of Fe/ZSM-5 zeolites for the selective catalytic reduction of nitrogen oxides by ammonia. Catal Sci Technol 2017. [DOI: 10.1039/c7cy00724h] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A simple one-step hydrothermal approach is developed to construct Fe/ZSM-5 zeolites for the selective catalytic reduction of nitrogen oxides by ammonia.
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Affiliation(s)
- Enhui Yuan
- School of Materials Science and Engineering & National Institute for Advanced Materials
- Nankai University
- Tianjin
- P.R. China
| | - Guangjun Wu
- School of Materials Science and Engineering & National Institute for Advanced Materials
- Nankai University
- Tianjin
- P.R. China
| | - Weili Dai
- School of Materials Science and Engineering & National Institute for Advanced Materials
- Nankai University
- Tianjin
- P.R. China
| | - Naijia Guan
- School of Materials Science and Engineering & National Institute for Advanced Materials
- Nankai University
- Tianjin
- P.R. China
- Key Laboratory of Advanced Energy Materials Chemistry of Ministry of Education
| | - Landong Li
- School of Materials Science and Engineering & National Institute for Advanced Materials
- Nankai University
- Tianjin
- P.R. China
- Key Laboratory of Advanced Energy Materials Chemistry of Ministry of Education
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46
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Guo RT, Li MY, Sun P, Liu SM, Wang SX, Pan WG, Liu SW, Liu J, Sun X. The enhanced resistance to P species of an Mn–Ti catalyst for selective catalytic reduction of NOx with NH3 by the modification with Mo. RSC Adv 2017. [DOI: 10.1039/c7ra01876b] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The modification of Mn–Ti catalyst by Mo could enhance its resistance to P species.
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Affiliation(s)
- Rui-tang Guo
- School of Energy Source and Mechanical Engineering
- Shanghai University of Electric Power
- Shanghai
- P. R. China
- Shanghai Engineering Research Center of Power Generation Environment Protection
| | - Ming-yuan Li
- School of Energy Source and Mechanical Engineering
- Shanghai University of Electric Power
- Shanghai
- P. R. China
- Shanghai Engineering Research Center of Power Generation Environment Protection
| | - Peng Sun
- School of Energy Source and Mechanical Engineering
- Shanghai University of Electric Power
- Shanghai
- P. R. China
- Shanghai Engineering Research Center of Power Generation Environment Protection
| | - Shu-ming Liu
- School of Energy Source and Mechanical Engineering
- Shanghai University of Electric Power
- Shanghai
- P. R. China
- Shanghai Engineering Research Center of Power Generation Environment Protection
| | - Shu-xian Wang
- School of Energy Source and Mechanical Engineering
- Shanghai University of Electric Power
- Shanghai
- P. R. China
- Shanghai Engineering Research Center of Power Generation Environment Protection
| | - Wei-guo Pan
- School of Energy Source and Mechanical Engineering
- Shanghai University of Electric Power
- Shanghai
- P. R. China
- Shanghai Engineering Research Center of Power Generation Environment Protection
| | - Shuai-wei Liu
- School of Energy Source and Mechanical Engineering
- Shanghai University of Electric Power
- Shanghai
- P. R. China
- Shanghai Engineering Research Center of Power Generation Environment Protection
| | - Jian Liu
- School of Energy Source and Mechanical Engineering
- Shanghai University of Electric Power
- Shanghai
- P. R. China
- Shanghai Engineering Research Center of Power Generation Environment Protection
| | - Xiao Sun
- School of Energy Source and Mechanical Engineering
- Shanghai University of Electric Power
- Shanghai
- P. R. China
- Shanghai Engineering Research Center of Power Generation Environment Protection
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47
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Granger P. Challenges and breakthroughs in post-combustion catalysis: how to match future stringent regulations. Catal Sci Technol 2017. [DOI: 10.1039/c7cy00983f] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This short overview briefly summarizes the prominent evolutions and scientific breakthroughs in the development of end-of-pipe technologies with respect to the standard regulations of atmospheric pollutant emissions from automotive exhaust.
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Affiliation(s)
- P. Granger
- Unité de Catalyse et de Chimie du Solide
- Université de Lille Sciences et Technologies
- France
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48
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Fe-Beta zeolite for selective catalytic reduction of NOx with NH3: Influence of Fe content. CHINESE JOURNAL OF CATALYSIS 2016. [DOI: 10.1016/s1872-2067(16)62534-2] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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49
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Chen P, Jabłońska M, Weide P, Caumanns T, Weirich T, Muhler M, Moos R, Palkovits R, Simon U. Formation and Effect of NH4+ Intermediates in NH3–SCR over Fe-ZSM-5 Zeolite Catalysts. ACS Catal 2016. [DOI: 10.1021/acscatal.6b02496] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Peirong Chen
- Institute
of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
- Center
for Automotive Catalytic Systems Aachen, RWTH Aachen University, Aachen, Germany
| | - Magdalena Jabłońska
- Center
for Automotive Catalytic Systems Aachen, RWTH Aachen University, Aachen, Germany
- Chair
of Heterogeneous Catalysis and Chemical Technology, RWTH Aachen University, Worringerweg 2, 52074 Aachen, Germany
| | - Philipp Weide
- Laboratory
of Industrial Chemistry, Ruhr-University Bochum, 44780 Bochum, Germany
| | - Tobias Caumanns
- Central
Facility for Electron Microscopy, RWTH Aachen University, 52074 Aachen, Germany
| | - Thomas Weirich
- Center
for Automotive Catalytic Systems Aachen, RWTH Aachen University, Aachen, Germany
- Central
Facility for Electron Microscopy, RWTH Aachen University, 52074 Aachen, Germany
| | - Martin Muhler
- Laboratory
of Industrial Chemistry, Ruhr-University Bochum, 44780 Bochum, Germany
| | - Ralf Moos
- Department
of Functional Materials, Bayreuth Engine Research Center and Zentrum
für Energietechnik, University of Bayreuth, Universitätsstraße
30, 95440 Bayreuth, Germany
| | - Regina Palkovits
- Center
for Automotive Catalytic Systems Aachen, RWTH Aachen University, Aachen, Germany
- Chair
of Heterogeneous Catalysis and Chemical Technology, RWTH Aachen University, Worringerweg 2, 52074 Aachen, Germany
| | - Ulrich Simon
- Institute
of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
- Center
for Automotive Catalytic Systems Aachen, RWTH Aachen University, Aachen, Germany
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50
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Vuong TH, Radnik J, Schneider M, Atia H, Armbruster U, Brückner A. Effect of support synthesis methods on structure and performance of VOx/CeO2 catalysts in low-temperature NH3-SCR of NO. CATAL COMMUN 2016. [DOI: 10.1016/j.catcom.2016.07.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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