1
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Zhuang K, Jin P, Yang L, Yao J, Yu L, Sheng Z, Chu X, Zhuang Z, Chen X. Different morphologies on Cu-Ce/TiO 2 catalysts for the selective catalytic reduction of NO x with NH 3 and DRIFTS study on sol-gel nanoparticles. RSC Adv 2023; 13:25989-26000. [PMID: 37664208 PMCID: PMC10472399 DOI: 10.1039/d3ra03018k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Accepted: 08/11/2023] [Indexed: 09/05/2023] Open
Abstract
The copper-cerium binary oxide catalysts supported by titanium dioxide with nanosphere core-shell structures, nanotube (TNT) core-shell structures, impregnation (imp) nanoparticles and sol-gel nanoparticles were prepared for NH3-SCR of NOx under medium-low temperature conditions. The effect of different morphologies on the Cu-Ce/TiO2 catalysts was comprehensively studied through physicochemical characterization. The results showed that the sol-gel nanoparticles exhibited 100% NOx reduction efficiency in the temperature range of 180-400 °C. Compared with the other catalysts, the sol-gel nanoparticle catalyst had the highest dispersion and lowest crystallinity, indicating that morphology played an important role in the NH3-SCR of the catalyst. The in situ DRIFTS study on the sol-gel nanoparticle catalyst shows that cerium could promote Cu2+ to produce abundant Lewis acid sites, which would significantly increase the adsorption reaction of ammonia on the catalyst surface, thereby promoting the occurrence of the Eley-Rideal (E-R) mechanism. With the Ce-Ti interaction on the atomic scale, the Ce-O-Ti structure enhanced the redox properties at a medium temperature. In addition, cerium oxide enhances the strong interaction between the catalyst matrix and CuO particles. Therefore, the reducibility of the CuO species was enhanced.
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Affiliation(s)
- Ke Zhuang
- State Power Environmental Protection Research Institute Nanjing 210031 Jiangsu China
| | - Pengkai Jin
- School of Environment, Jiangsu Province Engineering Research Center of Environmental Risk Prevention and Emergency Response Technology, Nanjing Normal University Nanjing 210023 Jiangsu China
| | - Liu Yang
- School of Environment, Jiangsu Province Engineering Research Center of Environmental Risk Prevention and Emergency Response Technology, Nanjing Normal University Nanjing 210023 Jiangsu China
| | - Jie Yao
- State Power Environmental Protection Research Institute Nanjing 210031 Jiangsu China
| | - Lemeng Yu
- State Power Environmental Protection Research Institute Nanjing 210031 Jiangsu China
| | - Zhongyi Sheng
- School of Environment, Jiangsu Province Engineering Research Center of Environmental Risk Prevention and Emergency Response Technology, Nanjing Normal University Nanjing 210023 Jiangsu China
- College of Chemistry & Environmental Sciences, Yili Normal University Yining 835000 Xinjiang China
| | - Xinyue Chu
- School of Environment, Jiangsu Province Engineering Research Center of Environmental Risk Prevention and Emergency Response Technology, Nanjing Normal University Nanjing 210023 Jiangsu China
| | - Zhipeng Zhuang
- Guangzhou HuaKe Environmental Protection Engineering Co Ltd Guangzhou 510655 Guangdong China
- South China Institute of Environmental Science, Ministry of Ecology and Environment Guangzhou 510655 Guangdong China
| | - Xiongbo Chen
- South China Institute of Environmental Science, Ministry of Ecology and Environment Guangzhou 510655 Guangdong China
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2
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Liu J, Xiang Y, Chen Y, Zhang H, Ye B, Ren L, Tan W, Kappler A, Hou J. Quantitative Contribution of Oxygen Vacancy Defects to Arsenate Immobilization on Hematite. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:12453-12464. [PMID: 37561149 DOI: 10.1021/acs.est.3c03441] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/11/2023]
Abstract
Hematite is a common iron oxide in natural environments, which has been observed to influence the transport and fate of arsenate by its association with hematite. Although oxygen vacancies were demonstrated to exist in hematite, their contributions to the arsenate immobilization have not been quantified. In this study, hematite samples with tunable oxygen vacancy defect (OVD) concentrations were synthesized by treating defect-free hematite using different NaBH4 solutions. The vacancy defects were characterized by positron annihilation lifetime spectroscopy, Doppler broadening of annihilation radiation, extended X-ray absorption fine structure (EXAFS), thermogravimetric mass spectrometry (TG-MS), electron paramagnetic resonance (EPR), and X-ray photoelectron spectroscopy (XPS). The results revealed that oxygen vacancy was the primary defect type existing on the hematite surface. TG-MS combined with EPR analysis allowed quantification of OVD concentrations in hematite. Batch experiments revealed that OVDs had a positive effect on arsenate adsorption, which could be quantitatively described by a linear relationship between the OVD concentration (Cdef, mmol m-2) and the enhanced arsenate adsorption amount caused by defects (ΔQm, μmol m-2) (ΔQm = 20.94 Cdef, R2 = 0.9813). NH3-diffuse reflectance infrared Fourier transform (NH3-DRIFT) analysis and density functional theory (DFT) calculations demonstrated that OVDs in hematite were beneficial to the improvement in adsorption strength of surface-active sites, thus considerably promoting the immobilization of arsenate.
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Affiliation(s)
- Juan Liu
- State Environmental Protection Key Laboratory of Soil Health and Green Remediation, Hubei Key Laboratory of Soil Environment and Pollution Remediation, College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China
| | - Yongjin Xiang
- State Environmental Protection Key Laboratory of Soil Health and Green Remediation, Hubei Key Laboratory of Soil Environment and Pollution Remediation, College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China
| | - Yiwen Chen
- State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei 230026, China
| | - Hongjun Zhang
- State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei 230026, China
| | - Bangjiao Ye
- State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei 230026, China
| | - Lu Ren
- School of Civil Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Wenfeng Tan
- State Environmental Protection Key Laboratory of Soil Health and Green Remediation, Hubei Key Laboratory of Soil Environment and Pollution Remediation, College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China
| | - Andreas Kappler
- Geomicrobiology, Department of Geosciences, University of Tuebingen, Tuebingen 72076, Germany
| | - Jingtao Hou
- State Environmental Protection Key Laboratory of Soil Health and Green Remediation, Hubei Key Laboratory of Soil Environment and Pollution Remediation, College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China
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3
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Wan J, Yang H, Shi Y, Liu Y, Zhang J, Zhang J, Wu G, Zhou R. Effect of Cu loading content on the catalytic performance of Cu-USY catalysts for selective catalytic reduction of NO with NH 3. J Environ Sci (China) 2023; 126:445-458. [PMID: 36503771 DOI: 10.1016/j.jes.2022.03.027] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 03/14/2022] [Accepted: 03/16/2022] [Indexed: 06/17/2023]
Abstract
Series of Cu-USY zeolite catalyst with different Cu loading content were synthesized through simple impregnation method. The obtained catalysts were subjected to selective catalytic reduction of NOx with NH3 (NH3-SCR) performance evaluation, structural/chemical characterizations such as X-ray diffraction (XRD), N2 adsorption/desorption, H2 temperature-programmed reduction (H2-TPR), NH3 temperature-programmed desorption (NH3-TPD) as well as detailed in situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) experiments including CO adsorption, NH3 adsorption and NO+O2 in situ reactions. Results show that Cu-USY with proper Cu loading (in this work 5Cu-USY with 5 wt.% Cu) could be promising candidates with highly efficient NH3-SCR catalytic performance, relatively low byproduct formation and excellent hydrothermal stability, although its SO2 poisoning tolerability needs alleviation. Further characterizations reveal that such catalytic advantages can be attributed to both active cu species and surface acid centers evolution modulated by Cu loading. On one hand, Cu species in the super cages of zeolites increases with higher Cu content and being more conducive for NH3-SCR reactivity. On the other hand, higher Cu loading leads to depletion of Brønsted acid centers and simultaneous formation of abundant Lewis acid centers, which facilitates NH4NO3 reduction via NH3 adsorbed on Lewis acid centers, thus improving SCR reactivity. However, Cu over-introduction leads to formation of surface highly dispersed CuOx, causing unfavorable NH3 oxidation and inferior N2 selectivity.
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Affiliation(s)
- Jie Wan
- Energy Research Institute, Nanjing Institute of Technology, Nanjing 211167, China; Institute of Catalysis, Zhejiang University, Hangzhou 310028, China
| | - Haipeng Yang
- Institute of Catalysis, Zhejiang University, Hangzhou 310028, China
| | - Yijun Shi
- Institute of Catalysis, Zhejiang University, Hangzhou 310028, China
| | - Yanjun Liu
- Institute of Catalysis, Zhejiang University, Hangzhou 310028, China
| | - Jin Zhang
- Energy Research Institute, Nanjing Institute of Technology, Nanjing 211167, China
| | - Jun Zhang
- Energy Research Institute, Nanjing Institute of Technology, Nanjing 211167, China
| | - Gongde Wu
- Energy Research Institute, Nanjing Institute of Technology, Nanjing 211167, China
| | - Renxian Zhou
- Institute of Catalysis, Zhejiang University, Hangzhou 310028, China.
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4
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Du Y, Wu X, Liu L, Li X, Liu L, Wu X. Low‐Temperature NH
3
Selective Catalytic Reduction Performance Enhancement of Fe‐Based Oxides by Employing Carbon Nanotubes to Decorate the MgFe‐LDH. ChemistrySelect 2023. [DOI: 10.1002/slct.202203767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Affiliation(s)
- Yali Du
- College of Chemistry and Chemical Engineering Jinzhong University Jinzhong 030619 China
| | - Xianfeng Wu
- College of Chemistry and Chemical Engineering Taiyuan University of Technology Taiyuan 030024 China (Xu Wu
| | - Lili Liu
- College of Chemistry and Chemical Engineering Taiyuan University of Technology Taiyuan 030024 China (Xu Wu
| | - Xiaodong Li
- College of Chemistry and Chemical Engineering Jinzhong University Jinzhong 030619 China
| | - Lifei Liu
- College of Chemistry and Chemical Engineering Taiyuan University of Technology Taiyuan 030024 China (Xu Wu
| | - Xu Wu
- College of Chemistry and Chemical Engineering Taiyuan University of Technology Taiyuan 030024 China (Xu Wu
- Shanxi Huadun Industrial Co. Ltd Taiyuan 030062 China
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5
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Chen W, Zou R, Wang X. Toward an Atomic-Level Understanding of the Catalytic Mechanism of Selective Catalytic Reduction of NO x with NH 3. ACS Catal 2022. [DOI: 10.1021/acscatal.2c03508] [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)
- Weibin Chen
- School of Materials Science and Engineering, Peking University, Beijing100871, People’s Republic of China
| | - Ruqiang Zou
- School of Materials Science and Engineering, Peking University, Beijing100871, People’s Republic of China
| | - Xidong Wang
- School of Materials Science and Engineering, Peking University, Beijing100871, People’s Republic of China
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6
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Khurana I, Albarracin-Caballero JD, Shih AJ. Identification and quantification of multinuclear Cu active sites derived from monomeric Cu moieties for dry NO oxidation over Cu-SSZ-13. J Catal 2022. [DOI: 10.1016/j.jcat.2022.08.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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7
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Ye X, Oord R, Monai M, Schmidt JE, Chen T, Meirer F, Weckhuysen BM. New insights into the NH 3-selective catalytic reduction of NO over Cu-ZSM-5 as revealed by operando spectroscopy. Catal Sci Technol 2022; 12:2589-2603. [PMID: 35664830 PMCID: PMC9016411 DOI: 10.1039/d1cy02348a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Accepted: 02/28/2022] [Indexed: 11/21/2022]
Abstract
To control diesel vehicle NO x emissions, Cu-exchanged zeolites have been applied in the selective catalytic reduction (SCR) of NO using NH3 as reductant. However, the harsh hydrothermal environment of tailpipe conditions causes irreversible catalyst deactivation. The aggregation of isolated Cu2+ brings about unselective ammonia oxidation along with the main NH3-SCR reaction. An unusual 'dip' shaped NO conversion curve was observed in the steamed zeolite Cu-ZSM-5, resulting from the undesired NH3 oxidation that produced NO. Here we gain further insights into the NH3-SCR reaction and its deactivation by employing operando UV-vis diffuse reflectance spectroscopy (DRS) and diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) on fresh and steamed zeolite Cu-ZSM-5. We found that tetragonally distorted octahedral Cu2+ with associated NH3 preferentially forms during low temperature NH3-SCR (<250 °C) in fresh Cu-ZSM-5. The high coordination number of Cu2+ ensures the availability for high coverage of nitrate intermediates. Whilst in the steamed Cu-ZSM-5, [Cu x (OH)2x-1]+ oligomers/clusters in pseudo-tetrahedral symmetry with coordinated NH3 accumulated during the low-temperature NH3-SCR reaction. These clusters presented a strong adsorption of surface NH3 and nitrates/nitric acid at low temperatures and therefore limited the reaction between surface species in the steamed Cu-ZSM-5. Further release of NH3 with increased reaction temperature favors NH3 oxidation that causes the drop of NO conversion at ∼275 °C. Moreover, competitive adsorption of NH3 and nitrates/nitric acid occurs on shared Lewis-acidic adsorption sites. Prompt removal of surface nitrates/nitric acid by NO avoids the surface blockage and tunes the selectivity by alternating nitrate-nitrite equilibrium. The formation of adsorbed NO2 and HNO x points to the necessity of an acid adsorbent in practical applications. The structural similarity under the NH3-SCR reaction and unselective NH3 oxidation confirmed the entanglement of these two reactions above 250 °C.
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Affiliation(s)
- Xinwei Ye
- Institute of New Catalytic Materials Science, School of Materials Science and Engineering, Key Laboratory of Advanced Energy Materials Chemistry (MOE), Nankai University Tianjin 300350 China.,Inorganic Chemistry and Catalysis Group, Debye Institute for Nanomaterials Science, Utrecht University Universiteitsweg 99 3584 CG Utrecht The Netherlands
| | - Ramon Oord
- Inorganic Chemistry and Catalysis Group, Debye Institute for Nanomaterials Science, Utrecht University Universiteitsweg 99 3584 CG Utrecht The Netherlands
| | - Matteo Monai
- Inorganic Chemistry and Catalysis Group, Debye Institute for Nanomaterials Science, Utrecht University Universiteitsweg 99 3584 CG Utrecht The Netherlands
| | - Joel E Schmidt
- Inorganic Chemistry and Catalysis Group, Debye Institute for Nanomaterials Science, Utrecht University Universiteitsweg 99 3584 CG Utrecht The Netherlands
| | - Tiehong Chen
- Institute of New Catalytic Materials Science, School of Materials Science and Engineering, Key Laboratory of Advanced Energy Materials Chemistry (MOE), Nankai University Tianjin 300350 China
| | - Florian Meirer
- Inorganic Chemistry and Catalysis Group, Debye Institute for Nanomaterials Science, Utrecht University Universiteitsweg 99 3584 CG Utrecht The Netherlands
| | - Bert M Weckhuysen
- Inorganic Chemistry and Catalysis Group, Debye Institute for Nanomaterials Science, Utrecht University Universiteitsweg 99 3584 CG Utrecht The Netherlands
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8
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Hahn C, Seidel J, Mertens FO, Kureti S. Study on the kinetics of the adsorption and desorption of NH3 on Fe/H-BEA zeolite. Phys Chem Chem Phys 2022; 24:7493-7504. [DOI: 10.1039/d1cp05378g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this paper, a Fe/HBEA zeolite (Si/Al: 12.5), representing an effective catalyst for the NH3-SCR process, was physico-chemically characterized and investigated towards the kinetics of the adsorption and desorption of...
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9
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Ma Y, Han X, Xu S, Wang Z, Li W, da Silva I, Chansai S, Lee D, Zou Y, Nikiel M, Manuel P, Sheveleva AM, Tuna F, McInnes EJL, Cheng Y, Rudić S, Ramirez-Cuesta AJ, Haigh SJ, Hardacre C, Schröder M, Yang S. Atomically Dispersed Copper Sites in a Metal-Organic Framework for Reduction of Nitrogen Dioxide. J Am Chem Soc 2021; 143:10977-10985. [PMID: 34279096 PMCID: PMC8323097 DOI: 10.1021/jacs.1c03036] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
![]()
Metal–organic
framework (MOF) materials provide an excellent
platform to fabricate single-atom catalysts due to their structural
diversity, intrinsic porosity, and designable functionality. However,
the unambiguous identification of atomically dispersed metal sites
and the elucidation of their role in catalysis are challenging due
to limited methods of characterization and lack of direct structural
information. Here, we report a comprehensive investigation of the
structure and the role of atomically dispersed copper sites in UiO-66
for the catalytic reduction of NO2 at ambient temperature.
The atomic dispersion of copper sites on UiO-66 is confirmed by high-angle
annular dark-field scanning transmission electron microscopy, electron
paramagnetic resonance spectroscopy, and inelastic neutron scattering,
and their location is identified by neutron powder diffraction and
solid-state nuclear magnetic resonance spectroscopy. The Cu/UiO-66
catalyst exhibits superior catalytic performance for the reduction
of NO2 at 25 °C without the use of reductants. A selectivity
of 88% for the formation of N2 at a 97% conversion of NO2 with a lifetime of >50 h and an unprecedented turnover
frequency
of 6.1 h–1 is achieved under nonthermal plasma activation. In situ and operando infrared, solid-state
NMR, and EPR spectroscopy reveal the critical role of copper sites
in the adsorption and activation of NO2 molecules, with
the formation of {Cu(I)···NO} and {Cu···NO2} adducts promoting the conversion of NO2 to N2. This study will inspire the further design and study of
new efficient single-atom catalysts for NO2 abatement via detailed unravelling of their role in catalysis.
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Affiliation(s)
- Yujie Ma
- Department of Chemistry, University of Manchester, Manchester M13 9PL, United Kingdom
| | - Xue Han
- Department of Chemistry, University of Manchester, Manchester M13 9PL, United Kingdom
| | - Shaojun Xu
- Department of Chemistry, University of Manchester, Manchester M13 9PL, United Kingdom.,UK Catalysis Hub, Research Complex at Harwell, Rutherford Appleton Laboratory, Harwell OX11 0FA, United Kingdom.,School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, United Kingdom
| | - Zi Wang
- Department of Chemistry, University of Manchester, Manchester M13 9PL, United Kingdom
| | - Weiyao Li
- Department of Chemistry, University of Manchester, Manchester M13 9PL, United Kingdom
| | - Ivan da Silva
- ISIS Facility, STFC Rutherford Appleton Laboratory, Chilton, Oxfordshire OX11 0QX, United Kingdom
| | - Sarayute Chansai
- Department of Chemical Engineering and Analytical Science, University of Manchester, Manchester M13 9PL, United Kingdom
| | - Daniel Lee
- Department of Chemical Engineering and Analytical Science, University of Manchester, Manchester M13 9PL, United Kingdom
| | - Yichao Zou
- Department of Materials, University of Manchester, Manchester M13 9PL, United Kingdom
| | - Marek Nikiel
- Department of Materials, University of Manchester, Manchester M13 9PL, United Kingdom
| | - Pascal Manuel
- ISIS Facility, STFC Rutherford Appleton Laboratory, Chilton, Oxfordshire OX11 0QX, United Kingdom
| | - Alena M Sheveleva
- Department of Chemistry, University of Manchester, Manchester M13 9PL, United Kingdom.,Photon Science Institute, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
| | - Floriana Tuna
- Department of Chemistry, University of Manchester, Manchester M13 9PL, United Kingdom.,Photon Science Institute, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
| | - Eric J L McInnes
- Department of Chemistry, University of Manchester, Manchester M13 9PL, United Kingdom.,Photon Science Institute, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
| | - Yongqiang Cheng
- Neutron Scattering Division, Neutron Sciences Directorate, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Svemir Rudić
- ISIS Facility, STFC Rutherford Appleton Laboratory, Chilton, Oxfordshire OX11 0QX, United Kingdom
| | - Anibal J Ramirez-Cuesta
- Neutron Scattering Division, Neutron Sciences Directorate, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Sarah J Haigh
- Department of Materials, University of Manchester, Manchester M13 9PL, United Kingdom
| | - Christopher Hardacre
- Department of Chemical Engineering and Analytical Science, University of Manchester, Manchester M13 9PL, United Kingdom
| | - Martin Schröder
- Department of Chemistry, University of Manchester, Manchester M13 9PL, United Kingdom
| | - Sihai Yang
- Department of Chemistry, University of Manchester, Manchester M13 9PL, United Kingdom
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10
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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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11
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Cu-IM-5 as the Catalyst for Selective Catalytic Reduction of NOx with NH3: Role of Cu Species and Reaction Mechanism. Catalysts 2021. [DOI: 10.3390/catal11020221] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
The role of Cu species in Cu ion-exchanged IM-5 zeolite (Cu-IM-5) regarding the performance in selective catalytic reduction (SCR) of NOx with NH3 (NH3-SCR) and the reaction mechanism was studied. Based on H2 temperature-programmed reduction (H2-TPR) and electron paramagnetic resonance (EPR) results, Cu–O–Cu and isolated Cu species are suggested as main Cu species existing in Cu-IM-5 and are active for SCR reaction. Cu–O–Cu species show a good NH3-SCR activity at temperatures below 250 °C, whereas their NH3 oxidation activity at higher temperatures hinders the SCR performance. At low temperatures, NH4NO3 and NH4NO2 are key reaction intermediates. In situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) suggests a mixed Eley–Rideal (E–R) and Langmuir–Hinshelwood (L–H) mechanism over Cu-IM-5 at low temperatures.
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12
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Lin B, Zhang J, Shi H, Chen Z, Jiang B. Mechanism of the hydrocarbon resistance of selective catalytic reduction catalysts supported on different zeolites. Catal Sci Technol 2021. [DOI: 10.1039/d0cy02132f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cu–Mn/SAPO-34 demonstrated excellent HC resistance, NOx complexes and NH3 species could be formed and SCR reaction proceed. While on Cu–Mn/ZSM-5, the active site was occupied by acrylate leading to SCR reaction blocked.
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Affiliation(s)
- Beilong Lin
- School of Environmental Science and Engineering
- Zhejiang Gongshang University
- Hangzhou 310018
- P.R. China
- School of Environment and Energy
| | - Jiawei Zhang
- School of Environmental Science and Engineering
- Zhejiang Gongshang University
- Hangzhou 310018
- P.R. China
| | - Haifeng Shi
- School of Environmental Science and Engineering
- Zhejiang Gongshang University
- Hangzhou 310018
- P.R. China
| | - Ziying Chen
- School of Environmental Science and Engineering
- Zhejiang Gongshang University
- Hangzhou 310018
- P.R. China
| | - Boqiong Jiang
- School of Environmental Science and Engineering
- Zhejiang Gongshang University
- Hangzhou 310018
- P.R. China
- Instrumental Analysis Center of Zhejiang Gongshang University
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13
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Pétaud G, Gaillard F, Tayakout M, Gil S, Giroir‐Fendler A. Spotlight on Large Surface Copper Cluster Role of Cu‐SAPO‐34 Catalyst in Standard NH
3
‐SCR Performances. ChemCatChem 2020. [DOI: 10.1002/cctc.201902036] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Guillaume Pétaud
- Université de Lyon, Université Claude Bernard Lyon 1 IRCELYON, CNRS, UMR 5256 2 avenue Albert Einstein Villeurbanne F-69622 France
| | - François Gaillard
- Université de Lyon, Université Claude Bernard Lyon 1 IRCELYON, CNRS, UMR 5256 2 avenue Albert Einstein Villeurbanne F-69622 France
| | - Melaz Tayakout
- Université de Lyon, Université Claude Bernard Lyon 1 LAGEPP, CNRS, UMR 5007 43 Bd du 11 Novembre 1918 Villeurbanne F-69622 France
| | - Sonia Gil
- Université de Lyon, Université Claude Bernard Lyon 1 IRCELYON, CNRS, UMR 5256 2 avenue Albert Einstein Villeurbanne F-69622 France
| | - Anne Giroir‐Fendler
- Université de Lyon, Université Claude Bernard Lyon 1 IRCELYON, CNRS, UMR 5256 2 avenue Albert Einstein Villeurbanne F-69622 France
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14
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Zhao N, Cheng Q, Lyu S, Guo L, Tian Y, Ding T, Xu J, Ma X, Li X. Promoting dimethyl ether carbonylation over hot-water pretreated H-mordenite. Catal Today 2020. [DOI: 10.1016/j.cattod.2019.01.013] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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15
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Chang H, Qin X, Ma L, Zhang T, Li J. Cu/SAPO-34 prepared by a facile ball milling method for enhanced catalytic performance in the selective catalytic reduction of NO x with NH 3. Phys Chem Chem Phys 2019; 21:22113-22120. [PMID: 31570907 DOI: 10.1039/c9cp04519h] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Cu/SAPO-34 catalysts were prepared by different solid-state ion exchange methods, i.e., mechanical mixing (Cu/SAPO-34-M) and ball milling (Cu/SAPO-34-B), and were used for selective catalytic reduction of NOx with NH3 (NH3-SCR) reaction. Compared with Cu/SAPO-34-M, Cu/SAPO-34-B exhibited more excellent NH3-SCR catalytic activity. Various characterization methods, including XRD, SEM, N2 adsorption-desorption, UV-vis, H2-TPR, EPR, NO + O2-TPD, NH3-TPD, and in situ DRIFTS, were used to elucidate their different catalytic performances. The characterization results suggested that ball milling could be beneficial for increasing the amount of isolated Cu2+ ions in the Cu/SAPO-34 catalyst. In comparison with Cu/SAPO-34-M, Cu/SAPO-34-B had more isolated Cu2+ ions, which mainly contributed to the NOx adsorption and Lewis acid sites. Furthermore, ball milling could improve the redox property of the Cu/SAPO-34 catalyst. The in situ DRIFTS results verified that NH3 adsorbed on Lewis acid sites were more active than those adsorbed on Brønsted acid sites. Therefore, it was believed that ball milling was a suitable method to prepare more efficient Cu/SAPO-34 catalysts for NOx removal from diesel exhaust.
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Affiliation(s)
- Huazhen Chang
- School of Environment and Natural Resources, Renmin University of China, Beijing 100872, China.
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16
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Chen M, Sun Q, Yang G, Chen X, Zhang Q, Zhang Y, Yang X, Yu J. Enhanced Performance for Selective Catalytic Reduction of NO
x
with NH
3
over Nanosized Cu/SAPO‐34 Catalysts. ChemCatChem 2019. [DOI: 10.1002/cctc.201900412] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Mengyang Chen
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of ChemistryJilin University Changchun 130012 P.R. China
| | - Qiming Sun
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of ChemistryJilin University Changchun 130012 P.R. China
| | - Guoju Yang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of ChemistryJilin University Changchun 130012 P.R. China
| | - Xiaoxin Chen
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of ChemistryJilin University Changchun 130012 P.R. China
| | - Qiang Zhang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of ChemistryJilin University Changchun 130012 P.R. China
| | - Yibo Zhang
- State Key Laboratory of Rare Earth Resource Utilization Jilin Province Key Laboratory of Green Chemistry and Process Changchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 P.R. China
| | - Xiangguang Yang
- State Key Laboratory of Rare Earth Resource Utilization Jilin Province Key Laboratory of Green Chemistry and Process Changchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 P.R. China
| | - Jihong Yu
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of ChemistryJilin University Changchun 130012 P.R. China
- International Center of Future ScienceJilin University Changchun 130012 P.R. China
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17
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Zhang J, Liu F, Liang J, Yu H, Liu W, Wang X, Peng H, Wu P. Exploring the Nanosize Effect of Mordenite Zeolites on Their Performance in the Removal of NOx. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b00353] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jingyan Zhang
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemistry, Nanchang University, 999 Xuefu Road, Nanchang, Jiangxi 330031, China
| | - Fuyan Liu
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemistry, Nanchang University, 999 Xuefu Road, Nanchang, Jiangxi 330031, China
| | - Jian Liang
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemistry, Nanchang University, 999 Xuefu Road, Nanchang, Jiangxi 330031, China
| | - Hui Yu
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemistry, Nanchang University, 999 Xuefu Road, Nanchang, Jiangxi 330031, China
| | - Wenming Liu
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemistry, Nanchang University, 999 Xuefu Road, Nanchang, Jiangxi 330031, China
| | - Xiang Wang
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemistry, Nanchang University, 999 Xuefu Road, Nanchang, Jiangxi 330031, China
| | - Honggen Peng
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemistry, Nanchang University, 999 Xuefu Road, Nanchang, Jiangxi 330031, China
| | - Peng Wu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry and Molecular Engineering, East China Normal University, North Zhongshan Road 3663, Shanghai 200062, China
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18
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Chen L, Agrawal V, Tait SL. Sulfate promotion of selective catalytic reduction of nitric oxide by ammonia on ceria. Catal Sci Technol 2019. [DOI: 10.1039/c8cy02590h] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Selective catalytic reduction of nitric oxide by ammonia (NH3-SCR) is a promising technology for NOx emission control.
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Affiliation(s)
- Linxiao Chen
- Dept. of Chemistry
- Indiana University
- Bloomington
- USA
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19
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Pétaud G, Gil S, Fendler AG. Cu SAPO 34 One Pot Hydrothermal Preparation Method for Particular Copper Configuration. Top Catal 2018. [DOI: 10.1007/s11244-018-1107-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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20
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Zhou J, Zhao C, Lin J, Yang H, Zhou R. Promotional effects of cerium modification of Cu-USY catalysts on the low-temperature activity of NH3-SCR. CATAL COMMUN 2018. [DOI: 10.1016/j.catcom.2018.05.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022] Open
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21
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Zhang Y, Peng Y, Wang C, Li K, Liu S, Li X, Chen J, Li J. Selective Catalytic Reduction of NO
x
with Ammonia over Copper Ion Exchanged SAPO-47 Zeolites in a Wide Temperature Range. ChemCatChem 2018. [DOI: 10.1002/cctc.201800169] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yani Zhang
- State Key Joint Laboratory of Environment Simulation and Pollution, Control; School of Environment; Tsinghua University; Beijing 100084 P.R. China
| | - Yue Peng
- State Key Joint Laboratory of Environment Simulation and Pollution, Control; School of Environment; Tsinghua University; Beijing 100084 P.R. China
| | - Chizhong Wang
- State Key Joint Laboratory of Environment Simulation and Pollution, Control; School of Environment; Tsinghua University; Beijing 100084 P.R. China
| | - Kezhi Li
- State Key Joint Laboratory of Environment Simulation and Pollution, Control; School of Environment; Tsinghua University; Beijing 100084 P.R. China
| | - Shuai Liu
- State Key Joint Laboratory of Environment Simulation and Pollution, Control; School of Environment; Tsinghua University; Beijing 100084 P.R. China
| | - Xiansheng Li
- State Key Joint Laboratory of Environment Simulation and Pollution, Control; School of Environment; Tsinghua University; Beijing 100084 P.R. China
| | - Jianjun Chen
- State Key Joint Laboratory of Environment Simulation and Pollution, Control; School of Environment; Tsinghua University; Beijing 100084 P.R. China
| | - Junhua Li
- State Key Joint Laboratory of Environment Simulation and Pollution, Control; School of Environment; Tsinghua University; Beijing 100084 P.R. China
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22
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Nakhostin Panahi P, Salari D, Tseng HH, Niaei A, Mousavi SM. Effect of the preparation method on activity of Cu-ZSM-5 nanocatalyst for the selective reduction of NO by NH 3. ENVIRONMENTAL TECHNOLOGY 2017; 38:1852-1861. [PMID: 27650215 DOI: 10.1080/09593330.2016.1238964] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Accepted: 08/30/2016] [Indexed: 06/06/2023]
Abstract
The selective catalytic reduction of NO with ammonia (NH3-SCR) was studied over Cu-ZSM-5 nanocatalysts which were prepared by several methods, including conventional ion-exchange (IE), conventional impregnation (IM), ultrasound-enhanced impregnation (UIM), and conventional deposition-precipitation (DP) using NaOH and homogeneous deposition-precipitation (HDP) using urea. The nanocatalysts were subsequently characterized by Fourier transform infrared spectroscopy, temperature-programmed reduction with hydrogen (H2-TPR), ammonia temperature-programmed desorption (NH3-TPD), X-ray photoelectron spectroscopy, X-ray diffraction, transmission electron microscope, and Brunauer-Emmett-Teller. The catalytic activity of the Cu-ZSM-5 nanocatalysts for NO removal decreased in the following order: Cu-ZSM-5 (HDP) > Cu-ZSM-5 (UIM) > Cu-ZSM-5 (IM) > Cu-ZSM-5 (IE) > Cu-ZSM-5 (DP). The effect of various preparation methods for Cu-ZSM-5 on the activity of NO conversion was compared and catalytic experiments revealed a strong correlation between the acid sites' strength and easily reducible isolated Cu2+ with NO conversion. Catalyst (HDP) (which showed excellent deNO activity) mainly contains easy reducibility of isolated Cu2+ ions, more strong acid sites, and higher specific surface area when compared with other catalysts.
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Affiliation(s)
| | - Darush Salari
- b Department of Applied Chemistry, Faculty of Chemistry , University of Tabriz , Tabriz , Iran
| | - Hui-Hsin Tseng
- c School of Occupational Safety and Health , Chung Shan Medical University , Taichung City , Taiwan, People's Republic of China
| | - Ali Niaei
- d Catalyst & Reactor Research Group, Department of Chemical and Petroleum Engineering , University of Tabriz , Tabriz , Iran
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23
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Xiang X, Wu P, Cao Y, Cao L, Wang Q, Xu S, Tian P, Liu Z. Investigation of low-temperature hydrothermal stability of Cu-SAPO-34 for selective catalytic reduction of NO x with NH 3. CHINESE JOURNAL OF CATALYSIS 2017. [DOI: 10.1016/s1872-2067(17)62836-5] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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24
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Li R, Li Z, Chen L, Dong Y, Ma S, Yuan F, Zhu Y. Synthesis of MnNi–SAPO-34 by a one-pot hydrothermal method and its excellent performance for the selective catalytic reduction of NO by NH3. Catal Sci Technol 2017. [DOI: 10.1039/c7cy01507k] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
MnNi–SAPO-34 with Mn and Ni incorporated in the framework of SAPO-34 prepared by a one-pot hydrothermal synthesis method exhibits excellent NH3-SCR activity, which is attributed to the strong interaction between the Mn and Ni species.
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Affiliation(s)
- Rui Li
- Key Laboratory of Functional Inorganic Material Chemistry (Heilongjiang University)
- Ministry of Education
- School of Chemistry and Materials
- Heilongjiang University
- Harbin 150080
| | - Zhibin Li
- Key Laboratory of Functional Inorganic Material Chemistry (Heilongjiang University)
- Ministry of Education
- School of Chemistry and Materials
- Heilongjiang University
- Harbin 150080
| | - Liqiang Chen
- Key Laboratory of Functional Inorganic Material Chemistry (Heilongjiang University)
- Ministry of Education
- School of Chemistry and Materials
- Heilongjiang University
- Harbin 150080
| | - Yongli Dong
- College of Environmental and Chemical Engineering
- Heilongjiang University of Science and Technology
- Harbin 150022
- China
| | - Shibo Ma
- Key Laboratory of Functional Inorganic Material Chemistry (Heilongjiang University)
- Ministry of Education
- School of Chemistry and Materials
- Heilongjiang University
- Harbin 150080
| | - Fulong Yuan
- Key Laboratory of Functional Inorganic Material Chemistry (Heilongjiang University)
- Ministry of Education
- School of Chemistry and Materials
- Heilongjiang University
- Harbin 150080
| | - Yujun Zhu
- Key Laboratory of Functional Inorganic Material Chemistry (Heilongjiang University)
- Ministry of Education
- School of Chemistry and Materials
- Heilongjiang University
- Harbin 150080
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25
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Chen HY, Wei Z, Kollar M, Gao F, Wang Y, Szanyi J, Peden CH. NO oxidation on zeolite supported Cu catalysts: Formation and reactivity of surface nitrates. Catal Today 2016. [DOI: 10.1016/j.cattod.2015.11.039] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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26
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Gong J, Narayanaswamy K, Rutland CJ. Heterogeneous Ammonia Storage Model for NH3–SCR Modeling. Ind Eng Chem Res 2016. [DOI: 10.1021/acs.iecr.6b01097] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jian Gong
- Engine
Research Center, University of Wisconsin—Madison, 1500 Engineering Drive, Madison, Wisconsin 53706, United States
| | - Kushal Narayanaswamy
- General Motors,
Global Research and Development, 30500
Mound Road, Warren, Michigan 48092, United States
| | - Christopher J. Rutland
- Engine
Research Center, University of Wisconsin—Madison, 1500 Engineering Drive, Madison, Wisconsin 53706, United States
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27
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Paolucci C, Parekh AA, Khurana I, Di Iorio JR, Li H, Albarracin Caballero JD, Shih AJ, Anggara T, Delgass WN, Miller JT, Ribeiro FH, Gounder R, Schneider WF. Catalysis in a Cage: Condition-Dependent Speciation and Dynamics of Exchanged Cu Cations in SSZ-13 Zeolites. J Am Chem Soc 2016; 138:6028-48. [PMID: 27070199 DOI: 10.1021/jacs.6b02651] [Citation(s) in RCA: 351] [Impact Index Per Article: 43.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Christopher Paolucci
- Department
of Chemical and Biomolecular Engineering, University of Notre Dame, 182 Fitzpatrick Hall, Notre Dame, Indiana 46556, United States
| | - Atish A. Parekh
- School
of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - Ishant Khurana
- School
of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - John R. Di Iorio
- School
of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - Hui Li
- Department
of Chemical and Biomolecular Engineering, University of Notre Dame, 182 Fitzpatrick Hall, Notre Dame, Indiana 46556, United States
| | | | - Arthur J. Shih
- School
of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - Trunojoyo Anggara
- Department
of Chemical and Biomolecular Engineering, University of Notre Dame, 182 Fitzpatrick Hall, Notre Dame, Indiana 46556, United States
| | - W. Nicholas Delgass
- School
of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - Jeffrey T. Miller
- School
of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - Fabio H. Ribeiro
- School
of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - Rajamani Gounder
- School
of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - William F. Schneider
- Department
of Chemical and Biomolecular Engineering, University of Notre Dame, 182 Fitzpatrick Hall, Notre Dame, Indiana 46556, United States
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29
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31
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Wang L, Li W, Schmieg SJ, Weng D. Role of Brønsted acidity in NH3 selective catalytic reduction reaction on Cu/SAPO-34 catalysts. J Catal 2015. [DOI: 10.1016/j.jcat.2015.01.011] [Citation(s) in RCA: 113] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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32
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Günter T, Carvalho HWP, Doronkin DE, Sheppard T, Glatzel P, Atkins AJ, Rudolph J, Jacob CR, Casapu M, Grunwaldt JD. Structural snapshots of the SCR reaction mechanism on Cu-SSZ-13. Chem Commun (Camb) 2015; 51:9227-30. [DOI: 10.1039/c5cc01758k] [Citation(s) in RCA: 93] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The structure of copper sites in Cu-SSZ-13 during NH3-SCR was unravelled by a combination of novel operando X-ray spectroscopic techniques.
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Affiliation(s)
- Tobias Günter
- Institute for Chemical Technology and Polymer Chemistry (ITCP)
- Karlsruhe Institute of Technology
- D-76131 Karlsruhe
- Germany
| | - Hudson W. P. Carvalho
- Institute for Chemical Technology and Polymer Chemistry (ITCP)
- Karlsruhe Institute of Technology
- D-76131 Karlsruhe
- Germany
| | - Dmitry E. Doronkin
- Institute for Chemical Technology and Polymer Chemistry (ITCP)
- Karlsruhe Institute of Technology
- D-76131 Karlsruhe
- Germany
- Institute of Catalysis Research and Technology (IKFT)
| | - Thomas Sheppard
- Institute for Chemical Technology and Polymer Chemistry (ITCP)
- Karlsruhe Institute of Technology
- D-76131 Karlsruhe
- Germany
| | - Pieter Glatzel
- European Synchrotron Radiation Facility
- F-38043 Grenoble Cedex
- France
| | - Andrew J. Atkins
- Center for Functional Nanostructures and Institute of Physical Chemistry
- Karlsruhe Institute of Technology
- D-76131 Karlsruhe
- Germany
| | - Julian Rudolph
- Institute of Physical and Theoretical Chemistry
- D-38106 Braunschweig
- Germany
| | - Christoph R. Jacob
- Center for Functional Nanostructures and Institute of Physical Chemistry
- Karlsruhe Institute of Technology
- D-76131 Karlsruhe
- Germany
- Institute of Physical and Theoretical Chemistry
| | - Maria Casapu
- Institute for Chemical Technology and Polymer Chemistry (ITCP)
- Karlsruhe Institute of Technology
- D-76131 Karlsruhe
- Germany
| | - Jan-Dierk Grunwaldt
- Institute for Chemical Technology and Polymer Chemistry (ITCP)
- Karlsruhe Institute of Technology
- D-76131 Karlsruhe
- Germany
- Institute of Catalysis Research and Technology (IKFT)
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33
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Shwan S, Olsson L, Skoglundh M, Jansson J. Kinetic modeling of Fe-BEA as NH3-SCR catalyst-effect of phosphorous. AIChE J 2014. [DOI: 10.1002/aic.14638] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Soran Shwan
- Competence Centre for Catalysis; Chalmers University of Technology; SE 412 96 Gothenburg Sweden
| | - Louise Olsson
- Competence Centre for Catalysis; Chalmers University of Technology; SE 412 96 Gothenburg Sweden
| | - Magnus Skoglundh
- Competence Centre for Catalysis; Chalmers University of Technology; SE 412 96 Gothenburg Sweden
| | - Jonas Jansson
- Volvo Group Trucks Technology; SE 405 08 Gothenburg Sweden
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Giordanino F, Borfecchia E, Lomachenko KA, Lazzarini A, Agostini G, Gallo E, Soldatov AV, Beato P, Bordiga S, Lamberti C. Interaction of NH3 with Cu-SSZ-13 Catalyst: A Complementary FTIR, XANES, and XES Study. J Phys Chem Lett 2014; 5:1552-9. [PMID: 26270095 DOI: 10.1021/jz500241m] [Citation(s) in RCA: 176] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
In the typical NH3-SCR temperature range (100-500 °C), ammonia is one of the main adsorbed species on acidic sites of Cu-SSZ-13 catalyst. Therefore, the study of adsorbed ammonia at high temperature is a key step for the understanding of its role in the NH3-SCR catalytic cycle. We employed different spectroscopic techniques to investigate the nature of the different complexes occurring upon NH3 interaction. In particular, FTIR spectroscopy revealed the formation of different NH3 species, that is, (i) NH3 bonded to copper centers, (ii) NH3 bonded to Brønsted sites, and (iii) NH4(+)·nNH3 associations. XANES and XES spectroscopy allowed us to get an insight into the geometry and electronic structure of Cu centers upon NH3 adsorption, revealing for the first time in Cu-SSZ-13 the presence of linear Cu(+) species in Ofw-Cu-NH3 or H3N-Cu-NH3 configuration.
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Affiliation(s)
| | | | | | | | - Giovanni Agostini
- ∥European Synchrotron Radiation Facility, 6, rue Jules Horowitz, B.P. 220, F-38043 Grenoble cedex, France
| | - Erik Gallo
- ∥European Synchrotron Radiation Facility, 6, rue Jules Horowitz, B.P. 220, F-38043 Grenoble cedex, France
| | | | - Pablo Beato
- ⊥Haldor Topsøe A/S, Nymøllevej 55, 2800 Kgs. Lyngby, Denmark
| | | | - Carlo Lamberti
- #Southern Federal University, Zorge street 5, 344090 Rostov-on-Don, Russia
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35
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Xie L, Liu F, Liu K, Shi X, He H. Inhibitory effect of NO2 on the selective catalytic reduction of NOx with NH3 over one-pot-synthesized Cu–SSZ-13 catalyst. Catal Sci Technol 2014. [DOI: 10.1039/c3cy00924f] [Citation(s) in RCA: 103] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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36
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Shwan S, Jansson J, Olsson L, Skoglundh M. Effect of post-synthesis hydrogen-treatment on the nature of iron species in Fe-BEA as NH3-SCR catalyst. Catal Sci Technol 2014. [DOI: 10.1039/c4cy00236a] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The relative amount of monomeric iron species increases after post-synthesis treatment with hydrogen, which improves the low-temperature activity during NH3-SCR.
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Affiliation(s)
- Soran Shwan
- Competence Centre for Catalysis and Department of Applied Surface Chemistry
- Chalmers University of Technology
- SE-412 96 Gothenburg, Sweden
| | | | - Louise Olsson
- Competence Centre for Catalysis and Department of Applied Surface Chemistry
- Chalmers University of Technology
- SE-412 96 Gothenburg, Sweden
| | - Magnus Skoglundh
- Competence Centre for Catalysis and Department of Applied Surface Chemistry
- Chalmers University of Technology
- SE-412 96 Gothenburg, Sweden
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Abstract
Bimetallic catalyst Fe/Cu-SSZ-13 was synthesized by iron exchanged Cu-SSZ-13 based on a one-pot hydrothermal method. It has showed excellent deNOx performance compared with Cu-SSZ-13. The synergistic effects between Fe and Cu species have been investigated by a series of characterization methods.
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Affiliation(s)
- Ranran Zhang
- Key Laboratory for Green Chemical Technology of Ministry of Education
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072, P. R. China
| | - Yonghong Li
- Key Laboratory for Green Chemical Technology of Ministry of Education
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072, P. R. China
- National Engineering Research Center for Distillation Technology
| | - Tieli Zhen
- Key Laboratory for Green Chemical Technology of Ministry of Education
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072, P. R. China
- Jinan Engineering Vocational College
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38
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Kinetic Modeling of Ammonia SCR for Cu-Zeolite Catalysts. UREA-SCR TECHNOLOGY FOR DENOX AFTER TREATMENT OF DIESEL EXHAUSTS 2014. [DOI: 10.1007/978-1-4899-8071-7_12] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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39
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Wang D, Zhang L, Kamasamudram K, Epling WS. In Situ-DRIFTS Study of Selective Catalytic Reduction of NOx by NH3 over Cu-Exchanged SAPO-34. ACS Catal 2013. [DOI: 10.1021/cs300843k] [Citation(s) in RCA: 313] [Impact Index Per Article: 28.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Di Wang
- Department of Chemical and Biomolecular Engineering, University of Houston, 4800 Calhoun Road, Houston,
Texas 77204-4004, United States
| | - Li Zhang
- Department of Chemical and Biomolecular Engineering, University of Houston, 4800 Calhoun Road, Houston,
Texas 77204-4004, United States
| | | | - William S. Epling
- Department of Chemical and Biomolecular Engineering, University of Houston, 4800 Calhoun Road, Houston,
Texas 77204-4004, United States
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40
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Wilken N, Nedyalkova R, Kamasamudram K, Li J, Currier NW, Vedaiyan R, Yezerets A, Olsson L. Investigation of the Effect of Accelerated Hydrothermal Aging on the Cu Sites in a Cu-BEA Catalyst for NH3-SCR Applications. Top Catal 2013. [DOI: 10.1007/s11244-013-9973-9] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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41
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Detailed kinetic modeling of the NH3–NO/NO2 SCR reactions over a commercial Cu-zeolite catalyst for Diesel exhausts after treatment. Catal Today 2012. [DOI: 10.1016/j.cattod.2012.09.002] [Citation(s) in RCA: 123] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Shwan S, Nedyalkova R, Jansson J, Korsgren J, Olsson L, Skoglundh M. Hydrothermal Stability of Fe–BEA as an NH3-SCR Catalyst. Ind Eng Chem Res 2012. [DOI: 10.1021/ie301516z] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Soran Shwan
- Competence Centre for Catalysis, Chalmers University of Technology, SE-41296, Gothenburg,
Sweden
| | - Radka Nedyalkova
- Competence Centre for Catalysis, Chalmers University of Technology, SE-41296, Gothenburg,
Sweden
| | - Jonas Jansson
- Volvo Group Trucks Technology, SE-40508, Gothenburg, Sweden
| | - John Korsgren
- Volvo Group Trucks Technology, SE-40508, Gothenburg, Sweden
| | - Louise Olsson
- Competence Centre for Catalysis, Chalmers University of Technology, SE-41296, Gothenburg,
Sweden
| | - Magnus Skoglundh
- Competence Centre for Catalysis, Chalmers University of Technology, SE-41296, Gothenburg,
Sweden
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Wang L, Li W, Qi G, Weng D. Location and nature of Cu species in Cu/SAPO-34 for selective catalytic reduction of NO with NH3. J Catal 2012. [DOI: 10.1016/j.jcat.2012.01.012] [Citation(s) in RCA: 242] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Enhanced NOx reduction and byproduct removal by (HC+OHC)/SCR over multifunctional dual-bed monolith catalyst. Catal Today 2012. [DOI: 10.1016/j.cattod.2011.11.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Wilken N, Kamasamudram K, Currier NW, Li J, Yezerets A, Olsson L. Heat of adsorption for NH3, NO2 and NO on Cu-Beta zeolite using microcalorimeter for NH3 SCR applications. Catal Today 2010. [DOI: 10.1016/j.cattod.2010.02.002] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Fedeyko JM, Chen B, Chen HY. Mechanistic study of the low temperature activity of transition metal exchanged zeolite SCR catalysts. Catal Today 2010. [DOI: 10.1016/j.cattod.2009.12.015] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Sjövall H, Blint RJ, Gopinath A, Olsson L. A Kinetic Model for the Selective Catalytic Reduction of NOx with NH3 over an Fe−zeolite Catalyst. Ind Eng Chem Res 2009. [DOI: 10.1021/ie9003464] [Citation(s) in RCA: 83] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hanna Sjövall
- Chemical Reaction Engineering and Competence Centre for Catalysis, Chalmers University of Technology, SE-412 96 Göteborg, Sweden, General Motors R&D Center, Chemical and Environmental Sciences Laboratory, 30500 Mound Rd, Warren, Michigan 48090-9055 and General Motors R&D India Science Lab, Creator Building, 2nd Floor, ITPB, Whitefield Road, Bangalore 560066, India
| | - Richard J. Blint
- Chemical Reaction Engineering and Competence Centre for Catalysis, Chalmers University of Technology, SE-412 96 Göteborg, Sweden, General Motors R&D Center, Chemical and Environmental Sciences Laboratory, 30500 Mound Rd, Warren, Michigan 48090-9055 and General Motors R&D India Science Lab, Creator Building, 2nd Floor, ITPB, Whitefield Road, Bangalore 560066, India
| | - Ashok Gopinath
- Chemical Reaction Engineering and Competence Centre for Catalysis, Chalmers University of Technology, SE-412 96 Göteborg, Sweden, General Motors R&D Center, Chemical and Environmental Sciences Laboratory, 30500 Mound Rd, Warren, Michigan 48090-9055 and General Motors R&D India Science Lab, Creator Building, 2nd Floor, ITPB, Whitefield Road, Bangalore 560066, India
| | - Louise Olsson
- Chemical Reaction Engineering and Competence Centre for Catalysis, Chalmers University of Technology, SE-412 96 Göteborg, Sweden, General Motors R&D Center, Chemical and Environmental Sciences Laboratory, 30500 Mound Rd, Warren, Michigan 48090-9055 and General Motors R&D India Science Lab, Creator Building, 2nd Floor, ITPB, Whitefield Road, Bangalore 560066, India
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