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Bai Y, Miao C, Wang H, Wu Z. IrSn Bimetallic Clusters Confined in MFI Zeolites for CO Selective Catalytic Reduction of NO x in the Presence of Excess O 2. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:11812-11821. [PMID: 38897924 DOI: 10.1021/acs.est.4c02540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/21/2024]
Abstract
We developed a simple strategy for preparing IrSn bimetallic clusters encapsulated in pure silicon zeolites via a one-pot hydrothermal synthesis by using diethylamine as a stabilizing agent. A series of investigations verified that metal species have been confined successfully in the inner of MFI zeolites. IrSn bimetallic cluster catalysts were efficient for the CO selective catalytic reduction of NOx in the presence of excess O2. Furthermore, the 13CO temperature-programmed surface reaction results demonstrated that NO2 and N2O could form when most of the CO was transformed into CO2 and that Sn modification could passivate CO oxidation on the IrSn bimetallic clusters, leading to more reductants that could be used for NOx reduction at high temperatures. Furthermore, SO2 can also influence the NOx conversion by inhibiting the oxidation of CO. This study provides a new strategy for preparing efficient environmental catalysts with a high dispersion of metal species.
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Affiliation(s)
- Yarong Bai
- Key laboratory of Environment Remediation and Ecological Health, Ministry of Education, College of Environmental Resources Science, Zhejiang University, Hangzhou 310058, PR China
- Zhejiang Provincial Engineering Research Center of Industrial Boiler Furnace Flue Gas Pollution Control, Hangzhou 310058, PR China
| | - Chuhan Miao
- Key laboratory of Environment Remediation and Ecological Health, Ministry of Education, College of Environmental Resources Science, Zhejiang University, Hangzhou 310058, PR China
- Zhejiang Provincial Engineering Research Center of Industrial Boiler Furnace Flue Gas Pollution Control, Hangzhou 310058, PR China
| | - Haiqiang Wang
- Key laboratory of Environment Remediation and Ecological Health, Ministry of Education, College of Environmental Resources Science, Zhejiang University, Hangzhou 310058, PR China
- Zhejiang Provincial Engineering Research Center of Industrial Boiler Furnace Flue Gas Pollution Control, Hangzhou 310058, PR China
| | - Zhongbiao Wu
- Key laboratory of Environment Remediation and Ecological Health, Ministry of Education, College of Environmental Resources Science, Zhejiang University, Hangzhou 310058, PR China
- Zhejiang Provincial Engineering Research Center of Industrial Boiler Furnace Flue Gas Pollution Control, Hangzhou 310058, PR China
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2
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Wang J, Gao A, Gao F, Yi L, Yao Y, Yi H, Zhou Y, Duan E, Tang X. The generation of sulfate species on Ir-based catalysts for boosting NO reduction with CO under the coexistence of O 2 and SO 2 atmosphere. J Colloid Interface Sci 2024; 675:935-946. [PMID: 39002243 DOI: 10.1016/j.jcis.2024.06.232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Revised: 06/03/2024] [Accepted: 06/28/2024] [Indexed: 07/15/2024]
Abstract
Generally, sulfur poisoning is considered to be one of the main factors contributing to the deactivation of selective catalytic reduction of NOx by CO (CO-SCR) catalysts, while the promotional effect of SO2 on NO reduction over Ir/SiO2 is observed which is an interesting scientific phenomenon. After the introduction of 20 ppm SO2, NOx conversion increased from ∼ 40 % to ∼ 90 % at 275 °C, and N2 selectivity increased from ∼ 80 % to 100 % at 200 ∼ 300 °C. Furthermore, the promoting effect could remain unchanged after 24 h of continuous reaction. However, the temperature point for achieving complete conversion of CO increased from 225 °C to 275 °C after the introduction of SO2. Experimental characterization and theoretical calculation jointly proved that the inhibition of CO oxidation by the generation of sulfate was the main reason for promoting NO reduction. Under the coexistence of O2 and SO2, SO2 was firstly oxidized to SO3 on the iridium surface and generated sulfate species on surface hydroxyl groups of SiO2. Some active sites for O2 adsorption were covered by the generated surface sulfate, and adsorbed CO was hard to react with adsorbed O2, resulting in Langmuir-Hinshelwood (L-H) reaction pathways for CO oxidation being inhibited. Therefore, unoxidized CO reacted with NO adsorbed species and generated N2O to generate N2 and CO2, improving NO reduction. This new insight has implications for understanding the promotional effect of SO2 on NO reduction with CO in the presence of O2.
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Affiliation(s)
- Junyi Wang
- School of Energy and Environmental Engineering, University of Science & Technology Beijing, Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants, Beijing 100083, China
| | - Aifang Gao
- School of Water Resources and Environment, Hebei GEO University, Shijiazhuang, Hebei 050031, China
| | - Fengyu Gao
- School of Energy and Environmental Engineering, University of Science & Technology Beijing, Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants, Beijing 100083, China.
| | - Lei Yi
- School of Energy and Environmental Engineering, University of Science & Technology Beijing, Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants, Beijing 100083, China
| | - Yuan Yao
- School of Energy and Environmental Engineering, University of Science & Technology Beijing, Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants, Beijing 100083, China
| | - Honghong Yi
- School of Energy and Environmental Engineering, University of Science & Technology Beijing, Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants, Beijing 100083, China
| | - Yuansong Zhou
- School of Energy and Environmental Engineering, University of Science & Technology Beijing, Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants, Beijing 100083, China
| | - Erhong Duan
- School of Environmental Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, Hebei 050018, China
| | - Xiaolong Tang
- School of Energy and Environmental Engineering, University of Science & Technology Beijing, Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants, Beijing 100083, China.
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3
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Wang Y, Xu W, Liu H, Chen W, Zhu T. Catalytic removal of gaseous pollutant NO using CO: Catalyst structure and reaction mechanism. ENVIRONMENTAL RESEARCH 2024; 246:118037. [PMID: 38160964 DOI: 10.1016/j.envres.2023.118037] [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: 10/24/2023] [Revised: 12/07/2023] [Accepted: 12/22/2023] [Indexed: 01/03/2024]
Abstract
Carbon monoxide (CO) has recently been considered an ideal reducing agent to replace NH3 in selective catalytic reduction of NOx (NH3-SCR). This shift is particularly relevant in diesel engines, coal-fired industry, the iron and steel industry, of which generate substantial amounts of CO due to incomplete combustion. Developing high-performance catalysts remain a critical challenge for commercializing this technology. The active sites on catalyst surface play a crucial role in the various microscopic reaction steps of this reaction. This work provides a comprehensive overview and insights into the reaction mechanism of active sites on transition metal- and noble metal-based catalysts, including the types of intermediates and active sites, as well as the conversion mechanism of active molecules or atoms. In addition, the effects of factors such as O2, SO2, and alkali metals, on NO reduction by CO were discussed, and the prospects for catalyst design are proposed. It is hoped to provide theoretical guidance for the rational design of efficient CO selective catalytic denitration materials based on the structure-activity relations.
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Affiliation(s)
- Yixi Wang
- CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Innovation Academy for Green Manufacture, Chinese Academy of Sciences, Beijing, 100190, China
| | - Wenqing Xu
- CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Innovation Academy for Green Manufacture, Chinese Academy of Sciences, Beijing, 100190, China; Center for Excellence in Regional Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China.
| | - Huixian Liu
- CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Innovation Academy for Green Manufacture, Chinese Academy of Sciences, Beijing, 100190, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Wanrong Chen
- CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Innovation Academy for Green Manufacture, Chinese Academy of Sciences, Beijing, 100190, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Tingyu Zhu
- CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Innovation Academy for Green Manufacture, Chinese Academy of Sciences, Beijing, 100190, China; Center for Excellence in Regional Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China.
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4
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Pu T, Ding J, Tang X, Yang K, Wang K, Huang B, Dai S, He Y, Shi Y, Xie P. Rational Design of Precious-Metal Single-Atom Catalysts for Methane Combustion. ACS APPLIED MATERIALS & INTERFACES 2022; 14:43141-43150. [PMID: 36111426 DOI: 10.1021/acsami.2c09347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Supported precious-metal single-atom catalysts (PM SACs) have emerged as a new frontier of high-performance catalytic material with 100% atom utilization efficiency. However, the rational design of such material with guidance from fundamental understandings of the structure-activity relationship remains challenging. Here, we report the synthesis, characterizations, and mechanistic investigation of various PM SACs supported on nanoceria for CH4 combustion. Using density functional theory, two descriptors as the d-band center of PMs and oxygen vacancy formation energy are established, which jointly govern the reactivity for CH4 combustion. These descriptors are thus applied to predict a dual SAC consisting of proximate Pd and Rh sites, demonstrating a remarkable improvement versus Pd or Rh catalyst, respectively. Our results reveal the general strategy of integrating experimental and computational efforts for investigation of various PM SACs in methane combustion, thus paving the way for the next generation of advanced catalytic materials.
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Affiliation(s)
- Tiancheng Pu
- College of Chemical and Biological Engineering, Zhejiang University, 148 Tianmushan Road, Hangzhou 310027, People's Republic of China
| | - Jiaqi Ding
- College of Chemical and Biological Engineering, Zhejiang University, 148 Tianmushan Road, Hangzhou 310027, People's Republic of China
| | - Xuan Tang
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, People's Republic of China
| | - Kewu Yang
- College of Chemical and Biological Engineering, Zhejiang University, 148 Tianmushan Road, Hangzhou 310027, People's Republic of China
| | - Ke Wang
- College of Chemical and Biological Engineering, Zhejiang University, 148 Tianmushan Road, Hangzhou 310027, People's Republic of China
| | - Bei Huang
- College of Chemical and Biological Engineering, Zhejiang University, 148 Tianmushan Road, Hangzhou 310027, People's Republic of China
| | - Sheng Dai
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, People's Republic of China
| | - Yi He
- College of Chemical and Biological Engineering, Zhejiang University, 148 Tianmushan Road, Hangzhou 310027, People's Republic of China
- Department of Chemical Engineering, University of Washington, Seattle, Washington 98195, United States
| | - Yao Shi
- College of Chemical and Biological Engineering, Zhejiang University, 148 Tianmushan Road, Hangzhou 310027, People's Republic of China
| | - Pengfei Xie
- College of Chemical and Biological Engineering, Zhejiang University, 148 Tianmushan Road, Hangzhou 310027, People's Republic of China
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Zhou Y, Gao F, Tang X, Meng J, Du Y, Yi H. Catalysts Optimization of WO
3
‐SiO
2
Supported Iridium for NOx Reduction by CO under Excess Oxygen Conditions. ChemistrySelect 2022. [DOI: 10.1002/slct.202104557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yuansong Zhou
- School of Energy and Environmental Engineering University of Science and Technology Beijing 30 Xueyuan Rd. Beijing 100083 P. R. China
- Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants University of Science and Technology Beijing 30 Xueyuan Rd. Beijing 100083 P. R. China
| | - Fengyu Gao
- School of Energy and Environmental Engineering University of Science and Technology Beijing 30 Xueyuan Rd. Beijing 100083 P. R. China
- Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants University of Science and Technology Beijing 30 Xueyuan Rd. Beijing 100083 P. R. China
| | - Xiaolong Tang
- School of Energy and Environmental Engineering University of Science and Technology Beijing 30 Xueyuan Rd. Beijing 100083 P. R. China
- Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants University of Science and Technology Beijing 30 Xueyuan Rd. Beijing 100083 P. R. China
| | - Jingxuan Meng
- School of Energy and Environmental Engineering University of Science and Technology Beijing 30 Xueyuan Rd. Beijing 100083 P. R. China
| | - Ying Du
- School of Energy and Environmental Engineering University of Science and Technology Beijing 30 Xueyuan Rd. Beijing 100083 P. R. China
| | - Honghong Yi
- School of Energy and Environmental Engineering University of Science and Technology Beijing 30 Xueyuan Rd. Beijing 100083 P. R. China
- Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants University of Science and Technology Beijing 30 Xueyuan Rd. Beijing 100083 P. R. China
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6
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Optimization of the Metal Phase Composition of Ir–Pd/SiO2–Al2O3 Catalysts to Increase Thiotolerance in Selective Ring Opening of Decalin. Top Catal 2022. [DOI: 10.1007/s11244-022-01608-3] [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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7
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Selective hydrogenation of crotonaldehyde over Ir/BN catalysts: kinetic investigation and Ir particle size effect. REACTION KINETICS MECHANISMS AND CATALYSIS 2021. [DOI: 10.1007/s11144-021-01933-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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8
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D'Ippolito SA, Ballarini AD, Rosas SM, Pirault‐Roy L, Especel C, Epron F, Pieck CL. Influence of the Ir content and the support on the thiotolerance of the Ir/
SiO
2
‐Al
2
O
3
catalysts for selective ring opening of decalin. CAN J CHEM ENG 2020. [DOI: 10.1002/cjce.23930] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Silvana A. D'Ippolito
- Instituto de Investigaciones en Catálisis y Petroquímica (INCAPE) (UNL, CONICET) Santa Fe Argentina
| | - Adriana D. Ballarini
- Instituto de Investigaciones en Catálisis y Petroquímica (INCAPE) (UNL, CONICET) Santa Fe Argentina
| | - Santiago M. Rosas
- Instituto de Investigaciones en Catálisis y Petroquímica (INCAPE) (UNL, CONICET) Santa Fe Argentina
| | - Laurence Pirault‐Roy
- Institut de chimie des milieux et matériaux de Poitiers (IC2MP) Université de Poitiers, UMR 7285 CNRS Poitiers cedex 9 France
| | - Catherine Especel
- Institut de chimie des milieux et matériaux de Poitiers (IC2MP) Université de Poitiers, UMR 7285 CNRS Poitiers cedex 9 France
| | - Florence Epron
- Institut de chimie des milieux et matériaux de Poitiers (IC2MP) Université de Poitiers, UMR 7285 CNRS Poitiers cedex 9 France
| | - Carlos L. Pieck
- Instituto de Investigaciones en Catálisis y Petroquímica (INCAPE) (UNL, CONICET) Santa Fe Argentina
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9
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Yang B, Mu W, Woon Lo BT, Liu S, Chen Z, France LJ, Li X. Efficient TiO 2-Nanobelt-Supported Ir Catalysts for FCC-Generated NO x and CO Remediation. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.9b06656] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Benyong Yang
- School of Chemistry and Chemical Engineering, Pulp & Paper Engineering State Key Laboratory of China, South China University of Technology, Guangzhou 510640, China
| | - Wentao Mu
- School of Chemistry and Chemical Engineering, Pulp & Paper Engineering State Key Laboratory of China, South China University of Technology, Guangzhou 510640, China
| | - Benedict Tsz Woon Lo
- Department of Applied Biology and Chemical Technology, Hong Kong Polytechnic University, Hong Kong 999077, China
| | - Sijie Liu
- School of Chemistry and Chemical Engineering, Pulp & Paper Engineering State Key Laboratory of China, South China University of Technology, Guangzhou 510640, China
| | - Zhihang Chen
- Guangdong Key Laboratory of Water and Air Pollution Control, South China Institute of Environmental Science, Ministry of Environmental Protection, Guangzhou 510655, China
| | - Liam John France
- School of Chemistry and Chemical Engineering, Pulp & Paper Engineering State Key Laboratory of China, South China University of Technology, Guangzhou 510640, China
| | - Xuehui Li
- School of Chemistry and Chemical Engineering, Pulp & Paper Engineering State Key Laboratory of China, South China University of Technology, Guangzhou 510640, China
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10
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Xu Z, Li Y, Lin Y, Zhu T. A review of the catalysts used in the reduction of NO by CO for gas purification. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:6723-6748. [PMID: 31939011 DOI: 10.1007/s11356-019-07469-w] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Accepted: 12/18/2019] [Indexed: 06/10/2023]
Abstract
The reduction of NO by the CO produced by incomplete combustion in the flue gas can remove CO and NO simultaneously and economically. However, there are some problems and challenges in the industrial application which limit the application of this process. In this work, noble metal catalysts and transition metal catalysts used in the reduction of NO by CO in recent years are systematically reviewed, emphasizing the research progress on Ir-based catalysts and Cu-based catalysts with prospective applications. The effects of catalyst support, additives, pretreatment methods, and physicochemical properties of catalysts on catalytic activity are summarized. In addition, the effects of atmosphere conditions on the catalytic activity are discussed. Several kinds of reaction mechanisms are proposed for noble metal catalysts and transition metal catalysts. Ir-based catalysts have an excellent activity for NO reduction by CO in the presence of O2. Cu-based bimetallic catalysts show better catalytic performance in the absence of O2, in that the adsorption and dissociation of NO can occur on both oxygen vacancies and metal sites. Finally, the potential problems existing in the application of the reduction of NO by CO in industrial flue gas are analyzed and some promising solutions are put forward through this review.
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Affiliation(s)
- Zhicheng Xu
- Beijing Engineering Research Center of Process Pollution Control, National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yuran Li
- Beijing Engineering Research Center of Process Pollution Control, National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China.
| | - Yuting Lin
- Beijing Engineering Research Center of Process Pollution Control, National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China
| | - Tingyu Zhu
- Beijing Engineering Research Center of Process Pollution Control, National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China.
- Center for Excellence in Regional Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China.
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11
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Li J, Zhao M, Zhang M, Cheng X, Chang J, Wang Z, Fu J, Sun Y, Liu X. NOx reduction by CO over Fe/ZSM-5: A comparative study of different preparation techniques. INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING 2020. [DOI: 10.1515/ijcre-2019-0063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Fe/ZSM-5 catalysts were prepared by three kinds of ion exchange methods: aqueous ion-exchange (AI), hydrothermal ion-exchange (HI) and solid-state ion-exchange (SI). Their catalytic activities were tested for NOx reduction by CO in a separated NOx adsorption-desorption process. In this paper, performances of adsorption, reduction and dynamic adsorption-reduction were all investigated. All three catalysts exhibited good reduction activity at above 300 °C. Fe/ZSM-5(SI) exhibited excellent NOx removal efficiency in the dynamic adsorption-reduction experiments. However, in the dynamic process the adsorption efficiency of Fe/ZSM-5(AI) and the reduction efficiency of Fe/ZSM-5(HI) is not very good. The catalysts were further characterized by SEM, BET, XRD, XRF, XPS and TPD. It was found that the Fe content of the Fe/ZSM-5(SI) was the highest. Further, Fe is supported in the form of Fe2O3 particles. Bronsted acid sites were also playing a major role in the high catalytic activity. TPD and in situ DRIFT experiments show that more Fe loading in α acid sites could result in a higher NOx removal efficiency.
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12
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Song JH, Park DC, You YW, Kim YJ, Kim SM, Heo I, Kim DH. Kinetic and DRIFTS studies of IrRu/Al 2O 3 catalysts for lean NO x reduction by CO at low temperature. Catal Sci Technol 2020. [DOI: 10.1039/d0cy01835j] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
This study employs a series of bimetallic IrRu/Al2O3 catalysts with differing Ir:Ru compositions for lean NOx reduction by CO (CO-SCR).
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Affiliation(s)
- Ji Hwan Song
- School of Chemical and Biological Engineering
- Institute of Chemical Processes
- Seoul National University
- Seoul 08826
- Republic of Korea
| | - Dong Chan Park
- School of Chemical and Biological Engineering
- Institute of Chemical Processes
- Seoul National University
- Seoul 08826
- Republic of Korea
| | - Young-Woo You
- Environment and Sustainable Resources Research Center
- Chemical & Process Technology Division
- Korea Research Institute of Chemical Technology
- Daejeon 34114
- Republic of Korea
| | - Young Jin Kim
- Environment and Sustainable Resources Research Center
- Chemical & Process Technology Division
- Korea Research Institute of Chemical Technology
- Daejeon 34114
- Republic of Korea
| | - Soo Min Kim
- Environment and Sustainable Resources Research Center
- Chemical & Process Technology Division
- Korea Research Institute of Chemical Technology
- Daejeon 34114
- Republic of Korea
| | - Iljeong Heo
- Environment and Sustainable Resources Research Center
- Chemical & Process Technology Division
- Korea Research Institute of Chemical Technology
- Daejeon 34114
- Republic of Korea
| | - Do Heui Kim
- School of Chemical and Biological Engineering
- Institute of Chemical Processes
- Seoul National University
- Seoul 08826
- Republic of Korea
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13
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Song JH, Park DC, You YW, Chang TS, Heo I, Kim DH. Lean NO x reduction by CO at low temperature over bimetallic IrRu/Al 2O 3 catalysts with different Ir : Ru ratios. Catal Sci Technol 2020. [DOI: 10.1039/c9cy02289a] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Lean NO reduction by CO at low temperature.
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Affiliation(s)
- Ji Hwan Song
- School of Chemical and Biological Engineering
- Institute of Chemical Processes
- Seoul National University
- Seoul 08826
- Republic of Korea
| | - Dong Chan Park
- School of Chemical and Biological Engineering
- Institute of Chemical Processes
- Seoul National University
- Seoul 08826
- Republic of Korea
| | - Young-Woo You
- Center for Environment and Sustainable Resources
- Carbon Resources Institute
- Korea Research Institute of Chemical Technology
- Daejeon 34114
- Republic of Korea
| | - Tae Sun Chang
- Center for Environment and Sustainable Resources
- Carbon Resources Institute
- Korea Research Institute of Chemical Technology
- Daejeon 34114
- Republic of Korea
| | - Iljeong Heo
- Center for Environment and Sustainable Resources
- Carbon Resources Institute
- Korea Research Institute of Chemical Technology
- Daejeon 34114
- Republic of Korea
| | - Do Heui Kim
- School of Chemical and Biological Engineering
- Institute of Chemical Processes
- Seoul National University
- Seoul 08826
- Republic of Korea
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14
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Janiszewska E, Zieliński M, Kot M, Kowalewski E, Śrębowata A. Aqueous-Phase Hydrodechlorination of Trichloroethylene on Ir Catalysts Supported on SBA-3 Materials. ChemCatChem 2018. [DOI: 10.1002/cctc.201800873] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Ewa Janiszewska
- Faculty of Chemistry; Adam Mickiewicz University in Poznań; Umultowska 89B Poznań 61-614 Poland
| | - Michał Zieliński
- Faculty of Chemistry; Adam Mickiewicz University in Poznań; Umultowska 89B Poznań 61-614 Poland
| | - Monika Kot
- Faculty of Chemistry; Adam Mickiewicz University in Poznań; Umultowska 89B Poznań 61-614 Poland
| | - Emil Kowalewski
- Institute of Physical Chemistry; Polish Academy of Sciences; Kasprzaka 44/52 Warszawa 01-224 Poland
| | - Anna Śrębowata
- Institute of Physical Chemistry; Polish Academy of Sciences; Kasprzaka 44/52 Warszawa 01-224 Poland
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15
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Doi Y, Haneda M. Catalytic performance of supported Ir catalysts for NO reduction with C 3 H 6 and CO in slight lean conditions. Catal Today 2018. [DOI: 10.1016/j.cattod.2017.07.023] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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16
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17
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Yin C, Wang L, Rivillon S, Shih AJ, Yang RT. SCR of Nitric Oxide by Hydrogen over Pd and Ir Based Catalysts with Different Supports. Catal Letters 2015. [DOI: 10.1007/s10562-015-1560-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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18
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Pholjaroen B, Li N, Huang Y, Li L, Wang A, Zhang T. Selective hydrogenolysis of tetrahydrofurfuryl alcohol to 1,5-pentanediol over vanadium modified Ir/SiO2 catalyst. Catal Today 2015. [DOI: 10.1016/j.cattod.2014.08.011] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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19
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Lin W, Zhao J, Cheng H, Li X, Li X, Zhao F. Selective hydrogenation of o-chloronitrobenzene over anatase-ferric oxides supported Ir nanocomposite catalyst. J Colloid Interface Sci 2014; 432:200-6. [DOI: 10.1016/j.jcis.2014.07.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2014] [Revised: 06/26/2014] [Accepted: 07/04/2014] [Indexed: 10/25/2022]
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20
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Ledesma BC, Vallés VA, Rivoira LP, Martínez ML, Anunziata OA, Beltramone AR. Hydrogenation of Tetralin Over Ir Catalysts Supported on Titania-Modified SBA-16. Catal Letters 2014. [DOI: 10.1007/s10562-014-1222-8] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Chen W, Shen Q, Bartynski RA, Kaghazchi P, Jacob T. Reduction of nitric oxide by acetylene on Ir surfaces with different morphologies: comparison with reduction of NO by CO. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:1113-1121. [PMID: 23273167 DOI: 10.1021/la3043878] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Reduction of nitric oxide (NO) by acetylene (C(2)H(2)) has been investigated by temperature-programmed desorption (TPD) on planar Ir(210) and faceted Ir(210) with tunable sizes of three-sided nanopyramids exposing (311), (311[overline]), and (110) faces. Upon adsorption, C(2)H(2) dissociates to form acetylide (CCH) and H species on the Ir surfaces at low C(2)H(2) precoverage. For adsorption of NO on C(2)H(2)-covered Ir, both planar and faceted Ir(210) exhibit high reactivity for reduction of NO with high selectivity to N(2) at low C(2)H(2) precoverage, although the reaction is completely inhibited at high C(2)H(2) precoverage. Coadsorbed C(2)H(2) significantly influences dissociation of NO. The N-, H-, and C-containing TPD products are dominated by N(2), H(2), CO, and CO(2) together with small amounts of H(2)O. For adsorption of NO on C-covered Ir(210) at fractional C precoverage, formation of CO(2) is promoted while production of CO is reduced. Reduction of NO by C(2)H(2) is structure sensitive on faceted Ir(210) versus planar Ir(210), but no evidence is found for size effects in the reduction of NO by C(2)H(2) on faceted Ir(210) for average facet sizes of 5 nm and 14 nm. The results are compared with reduction of NO by CO on the same Ir surfaces. As for NO+C(2)H(2), the Ir surfaces are very active for reduction of NO by CO with high selectivity to N(2) and the reaction is structure sensitive, but clear evidence is found for size effects in the reduction of NO by CO on the nanometer scale. Furthermore, coadsorbed CO does not affect dissociation of NO at low CO precoverage whereas coadsorbed CO considerably influences dissociation of NO at high CO precoverage. The adsorption sites of CCH+H on Ir are characterized by density functional theory.
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Affiliation(s)
- Wenhua Chen
- Department of Physics and Astronomy, and Laboratory for Surface Modification, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, USA.
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Chen W, Shen Q, Bartynski RA, Kaghazchi P, Jacob T. Reduction of NO by CO on unsupported Ir: bridging the materials gap. Chemphyschem 2010; 11:2515-20. [PMID: 20635373 DOI: 10.1002/cphc.201000254] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Temperature programmed desorption (TPD) and density functional theory (DFT) are used to investigate adsorption sites and reaction of coadsorbed NO and CO on planar Ir(210) and faceted Ir(210) with tailored sizes of three-sided nanopyramids exposing (311), (31 1) and (110) faces. Both planar and faceted Ir(210) are highly active for reduction of NO by CO with high selectivity to N(2), which is accompanied by simultaneous oxidation of CO. Evidence is found for structure sensitivity in adsorption sites and reaction of coadsorbed NO and CO on faceted Ir(210) versus planar Ir(210). Strong interaction between NO and CO at high NO exposure and one-monolayer CO pre-coverage results in "explosive" evolution of N(2) and CO(2) on planar Ir(210) and size effects in reduction of NO by CO on faceted Ir(210) for average facet size ranging from 5 to 14 nm without change in facet structure.
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Affiliation(s)
- Wenhua Chen
- Department of Physics and Astronomy and Laboratory for Surface Modification, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, USA.
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Haneda M, Aoki N, Arimitsu K, Hamada H. Activity Enhancement of WO3-Promoted Ir/SiO2Catalysts by High-Temperature Calcination for the Selective Reduction of NO with CO. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2009. [DOI: 10.1246/bcsj.82.1023] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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