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Bhaskaran A, Sharma D, Roy S, Singh SA. Technological solutions for NO x, SO x, and VOC abatement: recent breakthroughs and future directions. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:91501-91533. [PMID: 37495811 DOI: 10.1007/s11356-023-28840-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 07/13/2023] [Indexed: 07/28/2023]
Abstract
NOx, SOx, and carbonaceous volatile organic compounds (VOCs) are extremely harmful to the environment, and their concentrations must be within the limits prescribed by the region-specific pollution control boards. Thus, NOx, SOx, and VOC abatement is essential to safeguard the environment. Considering the importance of NOx, SOx, and VOC abatement, the discussion on selective catalytic reduction, oxidation, redox methods, and adsorption using noble metal and non-noble metal-based catalytic approaches were elaborated. This article covers different thermal treatment techniques, category of materials as catalysts, and its structure-property insights along with the advanced oxidation processes and adsorption. The defect engineered catalysts with lattice oxygen vacancies, bi- and tri-metallic noble metal catalysts and non-noble metal catalysts, modified metal organic frameworks, mixed-metal oxide supports, and their mechanisms have been thoroughly reviewed. The main hurdles and potential achievements in developing novel simultaneous NOx, SOx, and VOC removal technologies are critically discussed to envisage the future directions. This review highlights the removal of NOx, SOx, and VOC through material selection, properties, and mechanisms to further improve the existing abatement methods in an efficient way.
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Affiliation(s)
- Aathira Bhaskaran
- Department of Chemistry, Birla Institute of Technology and Science Pilani, Hyderabad Campus, Hyderabad, 500078, India
| | - Deepika Sharma
- Department of Chemical Engineering, Birla Institute of Technology and Science Pilani, Pilani Campus, Pilani, 333031, India
| | - Sounak Roy
- Department of Chemistry, Birla Institute of Technology and Science Pilani, Hyderabad Campus, Hyderabad, 500078, India
- Materials Center for Sustainable Energy & Environment, Birla Institute of Technology and Science Pilani Hyderabad Campus, Hyderabad, 500078, India
| | - Satyapaul A Singh
- Materials Center for Sustainable Energy & Environment, Birla Institute of Technology and Science Pilani Hyderabad Campus, Hyderabad, 500078, India.
- Department of Chemical Engineering, Birla Institute of Technology and Science Pilani, Hyderabad Campus, Hyderabad, 500078, India.
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2
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Surface coverage effect on ammonia oxidation over Pt(211). MOLECULAR CATALYSIS 2023. [DOI: 10.1016/j.mcat.2023.113048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/11/2023]
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Chen X, Yang J, Liu Z, Wen Y, Chen R, Chang S, Zhang A, Du C, Shan B. Origin of Ammonia Selective Oxidation Activity of SmMn 2O 5 Mullite: A First-Principles-Based Microkinetic Study. ACS APPLIED MATERIALS & INTERFACES 2023; 15:736-750. [PMID: 36538412 DOI: 10.1021/acsami.2c13501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Based on first-principles calculations and microkinetic analysis, the reaction routes and origin of the activity of SmMn2O5 mullite for the selective catalytic oxidation of ammonia (NH3-SCO) are systematically investigated on three low-index surfaces under experimentally operating conditions. Key influencing factors and contributions of different iconic intermediate species (NH*, N2H4*, and HNO*) to the overall reaction process have been identified. In detail, Mn4+ serves as the primary active site for NH3 adsorption, while lattice oxygen participates in the dehydrogenation of NH3 on (010)4+ and (001)4+ surfaces. Furthermore, the (010)4+ surface shows both the best activity and the highest N2 selectivity at low temperatures via the synergy effect of exposed Mn-Mn dimers and the most labile O2 atoms. We further evaluate the potential catalytic performances of six A-site doped (010)4+ facets, among which La, Pr, and Nd dopings are predicted to possess better catalytic performances. Our study provides deep insights into the microscope reaction mechanisms and provides the specific optimization strategy for NH3-SCO on mullite oxides.
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Affiliation(s)
- Xi Chen
- State Key Laboratory of Material Processing and Die and Mould Technology and School of Materials Science and Technology, Huazhong University of Science and Technology, Wuhan430074, Hubei, China
| | - Jiaqiang Yang
- State Key Laboratory of Material Processing and Die and Mould Technology and School of Materials Science and Technology, Huazhong University of Science and Technology, Wuhan430074, Hubei, China
| | - Zhang Liu
- State Key Laboratory of Material Processing and Die and Mould Technology and School of Materials Science and Technology, Huazhong University of Science and Technology, Wuhan430074, Hubei, China
| | - Yanwei Wen
- State Key Laboratory of Material Processing and Die and Mould Technology and School of Materials Science and Technology, Huazhong University of Science and Technology, Wuhan430074, Hubei, China
| | - Rong Chen
- State Key Laboratory of Digital Manufacturing Equipment and Technology and School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan430074, Hubei, China
| | - Shiying Chang
- State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metal, Kunming Institute of Precious Metals, Kunming650106, Yunnan, China
| | - Aimin Zhang
- State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metal, Kunming Institute of Precious Metals, Kunming650106, Yunnan, China
| | - Chun Du
- State Key Laboratory of Material Processing and Die and Mould Technology and School of Materials Science and Technology, Huazhong University of Science and Technology, Wuhan430074, Hubei, China
| | - Bin Shan
- State Key Laboratory of Material Processing and Die and Mould Technology and School of Materials Science and Technology, Huazhong University of Science and Technology, Wuhan430074, Hubei, China
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Ko J, Ma H, Schneider WF. Kinetic Origins of High Selectivity of Metal Phosphides for Ethane Dehydrogenation. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c02044] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jeonghyun Ko
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Hanyu Ma
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - William F. Schneider
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
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5
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Observation and rationalization of nitrogen oxidation enabled only by coupled plasma and catalyst. Nat Commun 2022; 13:402. [PMID: 35058443 PMCID: PMC8776816 DOI: 10.1038/s41467-021-27912-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Accepted: 12/13/2021] [Indexed: 12/03/2022] Open
Abstract
Heterogeneous catalysts coupled with non-thermal plasmas (NTP) are known to achieve reaction yields that exceed the contributions of the individual components. Rationalization of the enhancing potential of catalysts, however, remains challenging because the background contributions from NTP or catalysts are often non-negligible. Here, we first demonstrate platinum (Pt)-catalyzed nitrogen (N2) oxidation in a radio frequency plasma afterglow at conditions at which neither catalyst nor plasma alone produces significant concentrations of nitric oxide (NO). We then develop reactor models based on reduced NTP- and surface-microkinetic mechanisms to identify the features of each that lead to the synergy between NTP and Pt. At experimental conditions, NTP and thermal catalytic NO production are suppressed by radical reactions and high N2 dissociation barrier, respectively. Pt catalyzes NTP-generated radicals and vibrationally excited molecules to produce NO. The model construction further illustrates that the optimization of productivity and energy efficiency involves tuning of plasma species, catalysts properties, and the reactor configurations to couple plasma and catalysts. These results provide unambiguous evidence of synergism between plasma and catalyst, the origins of that synergy for N2 oxidation, and a modeling approach to guide material selection and system optimization. Heterogeneous catalysts coupled with non-thermal plasma are known to achieve higher reaction yields, but disentangling the gain achieved by the individual components remains challenging. Here, NO is produced from N2 and O2 in a plasma-catalytic reactor at conditions at which neither catalyst nor plasma alone is productive, providing unambiguous evidence of plasma-catalyst synergy.
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Borodin D, Rahinov I, Galparsoro O, Fingerhut J, Schwarzer M, Golibrzuch K, Skoulatakis G, Auerbach DJ, Kandratsenka A, Schwarzer D, Kitsopoulos TN, Wodtke AM. Kinetics of NH 3 Desorption and Diffusion on Pt: Implications for the Ostwald Process. J Am Chem Soc 2021; 143:18305-18316. [PMID: 34672570 PMCID: PMC8569812 DOI: 10.1021/jacs.1c09269] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
We report accurate time-resolved measurements of NH3 desorption from Pt(111) and Pt(332) and use these results to determine elementary rate constants for desorption from steps, from (111) terrace sites and for diffusion on (111) terraces. Modeling the extracted rate constants with transition state theory, we find that conventional models for partition functions, which rely on uncoupled degrees of freedom (DOFs), are not able to reproduce the experimental observations. The results can be reproduced using a more sophisticated partition function, which couples DOFs that are most sensitive to NH3 translation parallel to the surface; this approach yields accurate values for the NH3 binding energy to Pt(111) (1.13 ± 0.02 eV) and the diffusion barrier (0.71 ± 0.04 eV). In addition, we determine NH3's binding energy preference for steps over terraces on Pt (0.23 ± 0.03 eV). The ratio of the diffusion barrier to desorption energy is ∼0.65, in violation of the so-called 12% rule. Using our derived diffusion/desorption rates, we explain why established rate models of the Ostwald process incorrectly predict low selectivity and yields of NO under typical reactor operating conditions. Our results suggest that mean-field kinetics models have limited applicability for modeling the Ostwald process.
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Affiliation(s)
- Dmitriy Borodin
- Institute for Physical Chemistry, Georg-August University of Goettingen, Tammannstraße 6, 37077 Goettingen, Germany.,Department of Dynamics at Surfaces, Max Planck Institute for Biophysical Chemistry, Am Fassberg 11, 37077 Goettingen, Germany
| | - Igor Rahinov
- Department of Natural Sciences, The Open University of Israel, 4353701 Raanana, Israel
| | - Oihana Galparsoro
- Donostia International Physics Center (DIPC), Paseo Manuel de Lardizabal 4, 20018 Donostia-San Sebastián, Spain.,Kimika Fakultatea, Euskal Herriko Unibertsitatea UPV/EHU, P.K. 1072 Donostia-San Sebastián, Spain
| | - Jan Fingerhut
- Institute for Physical Chemistry, Georg-August University of Goettingen, Tammannstraße 6, 37077 Goettingen, Germany
| | - Michael Schwarzer
- Institute for Physical Chemistry, Georg-August University of Goettingen, Tammannstraße 6, 37077 Goettingen, Germany
| | - Kai Golibrzuch
- Department of Dynamics at Surfaces, Max Planck Institute for Biophysical Chemistry, Am Fassberg 11, 37077 Goettingen, Germany
| | - Georgios Skoulatakis
- Department of Dynamics at Surfaces, Max Planck Institute for Biophysical Chemistry, Am Fassberg 11, 37077 Goettingen, Germany
| | - Daniel J Auerbach
- Department of Dynamics at Surfaces, Max Planck Institute for Biophysical Chemistry, Am Fassberg 11, 37077 Goettingen, Germany
| | - Alexander Kandratsenka
- Department of Dynamics at Surfaces, Max Planck Institute for Biophysical Chemistry, Am Fassberg 11, 37077 Goettingen, Germany
| | - Dirk Schwarzer
- Department of Dynamics at Surfaces, Max Planck Institute for Biophysical Chemistry, Am Fassberg 11, 37077 Goettingen, Germany
| | - Theofanis N Kitsopoulos
- Institute for Physical Chemistry, Georg-August University of Goettingen, Tammannstraße 6, 37077 Goettingen, Germany.,Department of Dynamics at Surfaces, Max Planck Institute for Biophysical Chemistry, Am Fassberg 11, 37077 Goettingen, Germany.,Department of Chemistry, University of Crete, 71003 Heraklion, Greece.,Institute of Electronic Structure and Laser - FORTH, 71110 Heraklion, Greece
| | - Alec M Wodtke
- Institute for Physical Chemistry, Georg-August University of Goettingen, Tammannstraße 6, 37077 Goettingen, Germany.,Department of Dynamics at Surfaces, Max Planck Institute for Biophysical Chemistry, Am Fassberg 11, 37077 Goettingen, Germany.,International Center for Advanced Studies of Energy Conversion, Georg-August University of Goettingen, Tammannstraße 6, 37077 Goettingen, Germany
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Ivashenko O, Johansson N, Pettersen C, Jensen M, Zheng J, Schnadt J, Sjåstad AO. How Surface Species Drive Product Distribution during Ammonia Oxidation: An STM and Operando APXPS Study. ACS Catal 2021. [DOI: 10.1021/acscatal.1c00956] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Oleksii Ivashenko
- Centre for Materials Science and Nanotechnology, Department of Chemistry, University of Oslo, Box 1033, 0315 Oslo, Norway
| | - Niclas Johansson
- MAX IV Laboratory, Lund University, Box 118, 221 00 Lund, Sweden
| | - Christine Pettersen
- Centre for Materials Science and Nanotechnology, Department of Chemistry, University of Oslo, Box 1033, 0315 Oslo, Norway
| | - Martin Jensen
- Centre for Materials Science and Nanotechnology, Department of Chemistry, University of Oslo, Box 1033, 0315 Oslo, Norway
| | - Jian Zheng
- Centre for Materials Science and Nanotechnology, Department of Chemistry, University of Oslo, Box 1033, 0315 Oslo, Norway
| | - Joachim Schnadt
- MAX IV Laboratory, Lund University, Box 118, 221 00 Lund, Sweden
- Division of Synchrotron Radiation Research, Department of Physics, Lund University, Box
118, 221 00 Lund, Sweden
| | - Anja O. Sjåstad
- Centre for Materials Science and Nanotechnology, Department of Chemistry, University of Oslo, Box 1033, 0315 Oslo, Norway
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Rouwenhorst KHR, Jardali F, Bogaerts A, Lefferts L. From the Birkeland-Eyde process towards energy-efficient plasma-based NO X synthesis: a techno-economic analysis. ENERGY & ENVIRONMENTAL SCIENCE 2021; 14:2520-2534. [PMID: 34046082 PMCID: PMC8133363 DOI: 10.1039/d0ee03763j] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 03/31/2021] [Indexed: 06/12/2023]
Abstract
Plasma-based NO X synthesis via the Birkeland-Eyde process was one of the first industrial nitrogen fixation methods. However, this technology never played a dominant role for nitrogen fixation, due to the invention of the Haber-Bosch process. Recently, nitrogen fixation by plasma technology has gained significant interest again, due to the emergence of low cost, renewable electricity. We first present a short historical background of plasma-based NO X synthesis. Thereafter, we discuss the reported performance for plasma-based NO X synthesis in various types of plasma reactors, along with the current understanding regarding the reaction mechanisms in the plasma phase, as well as on a catalytic surface. Finally, we benchmark the plasma-based NO X synthesis process with the electrolysis-based Haber-Bosch process combined with the Ostwald process, in terms of the investment cost and energy consumption. This analysis shows that the energy consumption for NO X synthesis with plasma technology is almost competitive with the commercial process with its current best value of 2.4 MJ mol N-1, which is required to decrease further to about 0.7 MJ mol N-1 in order to become fully competitive. This may be accomplished through further plasma reactor optimization and effective plasma-catalyst coupling.
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Affiliation(s)
- Kevin H R Rouwenhorst
- Catalytic Processes & Materials, MESA+ Institute for Nanotechnology, University of Twente P.O. Box 217 7500 AE Enschede The Netherlands
| | - Fatme Jardali
- Research Group PLASMANT, Department of Chemistry, University of Antwerp Universiteitsplein 1 B-2610 Wilrijk-Antwerp Belgium
| | - Annemie Bogaerts
- Research Group PLASMANT, Department of Chemistry, University of Antwerp Universiteitsplein 1 B-2610 Wilrijk-Antwerp Belgium
| | - Leon Lefferts
- Catalytic Processes & Materials, MESA+ Institute for Nanotechnology, University of Twente P.O. Box 217 7500 AE Enschede The Netherlands
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Abstract
Ammonia is a toxic exhaust component emitted from internal combustion engines. Both pure ammonia and the products of its reaction with nitrogen and sulfur compounds, being the source of particulate matter (PM) emissions, are dangerous for human health and life. The aim of the article was to demonstrate that NH3 can be produced in exhaust gas after-treatment systems of spark-ignition (SI) engines used in light-duty vehicles. In some cases, NH3 occurs in high enough concentrations that can be harmful and dangerous. It would be reasonable to collect research data regarding this problem and consider the advisability of limiting these pollutant emissions in future regulations. The article presents the results of the spark-ignition engine testing on an engine test bench and discusses the impact of the air–fuel ratio regulation and some engine operating parameters on the concentration of NH3. It has been proven that in certain engine operating conditions and a combination of circumstances like the three-way catalytic reactor (TWC) temperature and periodic enrichment of the air–fuel mixture may lead to excessive NH3 emissions resulting from the NO conversion in the catalytic reactor. This is a clear disadvantage due to the lack of limitation of these pollutant emissions by the relevant type-approval regulations. This article should be a contribution to discussion among emissions researchers whether future emission regulations (e.g., Euro 7 or Euro VII) should include a provision to reduce NH3 emissions from all vehicles.
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Kibis LS, Svintsitskiy DA, Stadnichenko AI, Slavinskaya EM, Romanenko AV, Fedorova EA, Stonkus OA, Svetlichnyi VA, Fakhrutdinova ED, Vorokhta M, Šmíd B, Doronkin DE, Marchuk V, Grunwaldt JD, Boronin AI. In situ probing of Pt/TiO2 activity in low-temperature ammonia oxidation. Catal Sci Technol 2021. [DOI: 10.1039/d0cy01533d] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
NAP-XPS and operando XAS study of Pt/TiO2 catalysts shows that Pt0 species stabilized on TiO2 surface have the highest activity at low-temperature NH3 oxidation.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Mykhailo Vorokhta
- Department of Surface and Plasma Science
- Faculty of Mathematics and Physics
- Charles University
- Prague 8
- Czech Republic
| | - Břetislav Šmíd
- Department of Surface and Plasma Science
- Faculty of Mathematics and Physics
- Charles University
- Prague 8
- Czech Republic
| | - Dmitry E. Doronkin
- Institute for Chemical Technology and Polymer Chemistry (ITCP)
- Karlsruhe Institute of Technology
- Karlsruhe
- Germany
- Institute of Catalysis Research and Technology (IKFT)
| | - Vasyl Marchuk
- Institute for Chemical Technology and Polymer Chemistry (ITCP)
- Karlsruhe Institute of Technology
- Karlsruhe
- Germany
| | - Jan-Dierk Grunwaldt
- Institute for Chemical Technology and Polymer Chemistry (ITCP)
- Karlsruhe Institute of Technology
- Karlsruhe
- Germany
- Institute of Catalysis Research and Technology (IKFT)
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Shih YJ, Huang SH, Chen CL, Dong CD, Huang CP. Electrolytic characteristics of ammonia oxidation in real aquaculture water using nano-textured mono-and bimetal oxide catalysts supported on graphite electrodes. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.136990] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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