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Advances in Designing Efficient La-Based Perovskites for the NOx Storage and Reduction Process. Catalysts 2022. [DOI: 10.3390/catal12060593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
To overcome the inherent challenge of NOx reduction in the net oxidizing environment of diesel engine exhaust, the NOx storage and reduction (NSR) concept was proposed in 1995, soon developed and commercialized as a promising DeNOx technique over the past two decades. Years of practice suggest that it is a tailor-made technique for light-duty diesel vehicles, with the advantage of being space saving, cost effective, and efficient in NOx abatement; however, the over-reliance of NSR catalysts on high loadings of Pt has always been the bottleneck for its wide application. There remains fervent interest in searching for efficient, economical, and durable alternatives. To date, La-based perovskites are the most explored promising candidate, showing prominent structural and thermal stability and redox property. The perovskite-type oxide structure enables the coupling of redox and storage centers with homogeneous distribution, which maximizes the contact area for NOx spillover and contributes to efficient NOx storage and reduction. Moreover, the wide range of possible cationic substitutions in perovskite generates great flexibility, yielding various formulations with interesting features desirable for the NSR process. Herein, this review provides an overview of the features and performances of La-based perovskite in NO oxidation, NOx storage, and NOx reduction, and in this way comprehensively evaluates its potential to substitute Pt and further improve the DeNOx efficiency of the current NSR catalyst. The fundamental structure–property relationships are summarized and highlighted to instruct rational catalyst design. The critical research needs and essential aspects in catalyst design, including poisoner resistance and catalyst sustainability, are finally addressed to inspire the future development of perovskite material for practical application.
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Ozone-assisted diesel soot combustion over Mn2O3 catalysts: A tandem work of different reactive phases. J Catal 2022. [DOI: 10.1016/j.jcat.2022.02.022] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Cortés-Reyes M, Herrera C, Larrubia MÁ, Alemany LJ. Understanding of Soot Removal Mechanism over DeNO x-Catalysts as Passive Converters. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.0c05363] [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)
- Marina Cortés-Reyes
- Departamento de Ingeniería Química, Facultad de Ciencias, Campus de Teatinos, Universidad de Málaga, Málaga E-29071, Spain
| | - Concepción Herrera
- Departamento de Ingeniería Química, Facultad de Ciencias, Campus de Teatinos, Universidad de Málaga, Málaga E-29071, Spain
| | - M. Ángeles Larrubia
- Departamento de Ingeniería Química, Facultad de Ciencias, Campus de Teatinos, Universidad de Málaga, Málaga E-29071, Spain
| | - Luis J. Alemany
- Departamento de Ingeniería Química, Facultad de Ciencias, Campus de Teatinos, Universidad de Málaga, Málaga E-29071, Spain
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Castoldi L. An Overview on the Catalytic Materials Proposed for the Simultaneous Removal of NO x and Soot. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E3551. [PMID: 32806621 PMCID: PMC7475819 DOI: 10.3390/ma13163551] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 08/03/2020] [Accepted: 08/07/2020] [Indexed: 12/14/2022]
Abstract
Vehicular pollution has become a major problem in urban areas due to the exponential increase in the number of automobiles. Typical exhaust emissions, which include nitrogen oxides (NOx), hydrocarbons (HC), carbon monoxide (CO), soot, and particulate matter (PM), doubtless have important negative effects on the environment and human health, including cardiovascular effects such as cardiac arrhythmias and heart attacks, and respiratory effects such as asthma attacks and bronchitis. The mitigation measures comprise either the use of clean alternative fuels or the use of innovative technologies. Several existing emission control technologies have proven effective at controlling emissions individually, such as selective catalytic reduction (SCR) and lean NOx trap (LNT) to reduce NOx and diesel particulate filter (DPF) specifically for PM abatement. These after-treatment devices are the most profitable means to reduce exhaust emissions to acceptable limits (EURO VI norms) with very little or no impact on the engine performances. Additionally, the relative lack of physical space in which to install emissions-control equipment is a key challenge for cars, especially those of small size. For this reason, to reduce both volume and cost of the after-treatment devices integrated catalytic systems (e.g., a sort of a "single brick") have been proposed, reducing both NOx and PM simultaneously. This review will summarize the currently reported materials for the simultaneous removal of NOx and soot, with particular attention to their nature, properties, and performances.
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Affiliation(s)
- Lidia Castoldi
- Dipartimento di Energia, Laboratory of Catalysis and Catalytic Processes and NEMAS, Centre of Excellence, Politecnico di Milano, via La Masa 34, 20156 Milano, Italy
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Granger P. Challenges and breakthroughs in post-combustion catalysis: how to match future stringent regulations. Catal Sci Technol 2017. [DOI: 10.1039/c7cy00983f] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This short overview briefly summarizes the prominent evolutions and scientific breakthroughs in the development of end-of-pipe technologies with respect to the standard regulations of atmospheric pollutant emissions from automotive exhaust.
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Affiliation(s)
- P. Granger
- Unité de Catalyse et de Chimie du Solide
- Université de Lille Sciences et Technologies
- France
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Matarrese R, Aneggi E, Castoldi L, Llorca J, Trovarelli A, Lietti L. Simultaneous removal of soot and NO over K- and Ba-doped ruthenium supported catalysts. Catal Today 2016. [DOI: 10.1016/j.cattod.2015.12.016] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Castoldi L, Aneggi E, Matarrese R, Bonzi R, Llorca J, Trovarelli A, Lietti L. Silver-based catalytic materials for the simultaneous removal of soot and NO. Catal Today 2015. [DOI: 10.1016/j.cattod.2015.02.024] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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9
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Liu S, Wu X, Weng D, Li M, Ran R. Roles of Acid Sites on Pt/H-ZSM5 Catalyst in Catalytic Oxidation of Diesel soot. ACS Catal 2015. [DOI: 10.1021/cs5018369] [Citation(s) in RCA: 90] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Shuang Liu
- State Key Laboratory of New Ceramics & Fine Processing and ‡The Key Laboratory of Advanced Materials of Ministry of Education, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, People’s Republic of China
| | - Xiaodong Wu
- State Key Laboratory of New Ceramics & Fine Processing and ‡The Key Laboratory of Advanced Materials of Ministry of Education, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, People’s Republic of China
| | - Duan Weng
- State Key Laboratory of New Ceramics & Fine Processing and ‡The Key Laboratory of Advanced Materials of Ministry of Education, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, People’s Republic of China
| | - Min Li
- State Key Laboratory of New Ceramics & Fine Processing and ‡The Key Laboratory of Advanced Materials of Ministry of Education, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, People’s Republic of China
| | - Rui Ran
- State Key Laboratory of New Ceramics & Fine Processing and ‡The Key Laboratory of Advanced Materials of Ministry of Education, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, People’s Republic of China
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Wang Z, Lu P, Zhang X, Wang L, Li Q, Zhang Z. NOx storage and soot combustion over well-dispersed mesoporous mixed oxides via hydrotalcite-like precursors. RSC Adv 2015. [DOI: 10.1039/c5ra07414b] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Partial substitution of Mg in hydrotalcite layers with transition metal ions leads to well-dispersed mesoporous mixed oxides exhibiting high performances on NOx storage and soot combustion.
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Affiliation(s)
- Zhongpeng Wang
- School of Resources and Environment
- University of Jinan
- Jinan 250022
- P R China
| | - Peng Lu
- School of Resources and Environment
- University of Jinan
- Jinan 250022
- P R China
| | - Xiaomin Zhang
- School of Resources and Environment
- University of Jinan
- Jinan 250022
- P R China
| | - Liguo Wang
- School of Resources and Environment
- University of Jinan
- Jinan 250022
- P R China
| | - Qian Li
- College of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- P R China
| | - Zhaoliang Zhang
- College of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- P R China
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Smirnov MY, Kalinkin AV, Nazimov DA, Bukhtiyarov VI, Vovk EI, Ozensoy E. AN XPS study of the interaction of model Ba/TiO2 AND Ba/ZrO2 NSR catalysts with NO2. J STRUCT CHEM+ 2014. [DOI: 10.1134/s002247661404026x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Wu DL, Tschamber V, Limousy L, Klein J, Westermann A, Azambre B, Fechete I, Garin F. Simultaneous effect of carbon and water on NOx adsorption on a stabilized Pt–Ba/Al2O3 catalyst. CR CHIM 2014. [DOI: 10.1016/j.crci.2014.04.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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15
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An overview of the production and use of ammonia in NSR+SCR coupled system for NOx reduction from lean exhaust gas. Catal Today 2012. [DOI: 10.1016/j.cattod.2012.07.032] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Matarrese R, Castoldi L, Lietti L. Reaction between soot and stored NOX over K-based LNT catalysts investigated by temperature programmed methods and labeling isotopic experiments. Catal Today 2012. [DOI: 10.1016/j.cattod.2012.07.046] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Matarrese R, Artioli N, Castoldi L, Lietti L, Forzatti P. Interaction between soot and stored NOx during operation of LNT Pt–Ba/Al2O3 catalysts. Catal Today 2012. [DOI: 10.1016/j.cattod.2011.11.026] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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