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Jain A, Tamhankar S, Jaiswal Y. Role of La-based perovskite catalysts in environmental pollution remediation. REV CHEM ENG 2023. [DOI: 10.1515/revce-2022-0034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2023]
Abstract
Abstract
Since the advent of the industrial revolution, there has been a constant need of efficient catalysts for abatement of industrial toxic pollutants. This phenomenon necessitated the development of eco-friendly, stable, and economically feasible catalytic materials like lanthanum-based perovskite-type oxides (PTOs) having well-defined crystal structure, excellent thermal, and structural stability, exceptional ionic conductivity, redox behavior, and high tunability. In this review, applicability of La-based PTOs in remediation of pollutants, including CO, NO
x
and VOCs was addressed. A framework for rationalizing reaction mechanism, substitution effect, preparation methods, support, and catalyst shape has been discussed. Furthermore, reactant conversion efficiencies of best PTOs have been compared with noble-metal catalysts for each application. The catalytic properties of the perovskites including electronic and structural properties have been extensively presented. We highlight that a robust understanding of electronic structure of PTOs will help develop perovskite catalysts for other environmental applications involving oxidation or redox reactions.
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Affiliation(s)
- Anusha Jain
- Chemical Engineering Department , Indian Institute of Technology Delhi , New Delhi 110016 , India
| | - Sarang Tamhankar
- Chemical Engineering Department , Institute of Chemical Technology Mumbai , Maharastra 400019 , India
| | - Yash Jaiswal
- Chemical Engineering Department, Faculty of Technology , Dharmsinh Desai University Nadiad , Gujarat 387001 , India
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Synthesis, characterization, and use of nanocast LaMnO3 perovskites in the catalytic production of imine by the gas-phase oxidative coupling of benzyl alcohol to aniline. CATAL COMMUN 2023. [DOI: 10.1016/j.catcom.2023.106606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
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Modified BaMnO3-Based Catalysts for Gasoline Particle Filters (GPF): A Preliminary Study. Catalysts 2022. [DOI: 10.3390/catal12111325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Gasoline engines, mainly gasoline direct injection engines (GDI) require, in addition to three-way catalysts (TWC), a new catalytic system to remove the formed soot. Gasoline Particle Filters (GPF) are, among others, a possible solution. BaMnO3 and copper-doped BaMnO3 perovskites seem to be a feasible alternative to current catalysts for GPF. The physical and chemical properties of these two perovskites determining the catalytic performance have been modified using different synthesis routes: (i) sol-gel, (ii) modified sol-gel and iii) hydrothermal. The deep characterization allows concluding that: (i) all samples present a perovskite-like structure (hexagonal), except BMC3 which shows a polytype one (due to the distortion caused by copper insertion in the lattice), and ii) when a low calcination temperature is used during synthesis, the sintering effect decreases and the textural properties, the reducibility and the oxygen mobility are improved. The study of soot oxidation simulating the hardest GDI scenarios reveals that, as for diesel soot removal, the best catalytic performance involves the presence of oxygen vacancies to adsorb and activate oxygen and a labile Mn (IV)/Mn (III) redox pair to dissociate the adsorbed oxygen. The combination of both properties allows the transport of the dissociated oxygen towards the soot.
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McGuire SC, Wesley W, Sasaki K, Tong X, Wong SS. Yttrium-based Double Perovskite Nanorods for Electrocatalysis. ACS APPLIED MATERIALS & INTERFACES 2022; 14:30914-30926. [PMID: 35759361 DOI: 10.1021/acsami.2c07377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Herein, we investigate the effect of the chemical composition of double perovskite nanorods on their versatile electrocatalytic activity not only as supports for the oxidation of small organic molecules but also as catalysts for the oxygen evolution reaction. Specifically, Y2CoMnO6 and Y2NiMnO6 nanorods with average diameters of 300 nm were prepared by a two-step hydrothermal method, in which the individual effects of synthetic parameters, such as the pH, annealing temperature, and precursor ratios on both the composition and morphology, were systematically investigated. When used as supports for Pt nanoparticles, Y2CoMnO6/Pt catalysts exhibited an electrocatalytic activity for the methanol oxidation reaction, which is 2.1 and 1.3 times higher than that measured for commercial Pt/C and Y2NiMnO6/Pt, respectively. Similarly, the Co-based catalyst support material displayed an ethanol oxidation activity, which is 2.3 times higher than both Pt/C and Y2NiMnO6/Pt. This clear enhancement in the activity for Y2CoMnO6 can largely be attributed to strong metal-support interactions, as evidenced by a downshift in the binding energy of the Pt 4f bands, measured by X-ray photoelectron spectroscopy (XPS), which is often correlated not only with a downshift in the d-band center but also to a decreased adsorption of poisoning adsorbates. Moreover, when used as catalysts for the oxygen evolution reaction, Y2CoMnO6 displayed a much greater activity as compared with Y2NiMnO6. This behavior can largely be attributed not only to a preponderance of comparatively more favorable oxidation states and electronic configurations but also to the formation of an active layer on the surface of the Y2CoMnO6 catalyst, which collectively gives rise to improved performance metrics and greater stability as compared with both IrO2 and Y2NiMnO6. Overall, these results highlight the importance of both the chemical composition and the electronic structure of double perovskites, especially when utilized in multifunctional roles as either supports or catalysts.
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Affiliation(s)
- Scott C McGuire
- Department of Chemistry, State University of New York at Stony Brook, Stony Brook, New York 11794-3400, United States
| | - Weiqiao Wesley
- Department of Chemistry, State University of New York at Stony Brook, Stony Brook, New York 11794-3400, United States
| | - Kotaro Sasaki
- Chemistry Division, Brookhaven National Laboratory, Building 555, Upton, New York 11973, United States
| | - Xiao Tong
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Building 735, Upton, New York 11973, United States
| | - Stanislaus S Wong
- Department of Chemistry, State University of New York at Stony Brook, Stony Brook, New York 11794-3400, United States
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Torregrosa-Rivero V, Sánchez-Adsuar MS, Illán-Gómez MJ. Improving the Performance of BaMnO 3 Perovskite as Soot Oxidation Catalyst Using Carbon Black during Sol-Gel Synthesis. NANOMATERIALS 2022; 12:nano12020219. [PMID: 35055237 PMCID: PMC8781672 DOI: 10.3390/nano12020219] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 01/02/2022] [Accepted: 01/07/2022] [Indexed: 02/06/2023]
Abstract
A series of BaMnO3 solids (BM-CX) were prepared by a modified sol-gel method in which a carbon black (VULCAN XC-72R), and different calcination temperatures (600–850 °C) were used. The fresh and used catalysts were characterized by ICP-OES, XRD, XPS, FESEM, TEM, O2-TPD and H2- TPR-. The characterization results indicate that the use of low calcination temperatures in the presence of carbon black allows decreasing the sintering effects and achieving some improvements regarding BM reference catalyst: (i) smaller average crystal and particles size, (ii) a slight increase in the BET surface area, (iii) a decrease in the macropores diameter range and, (iv) a lower temperature for the reduction of manganese. The hydrogen consumption confirms Mn(III) and Mn(IV) are presented in the samples, Mn(III) being the main oxidation state. The BM-CX catalysts series shows an improved catalytic performance regarding BM reference catalyst for oxidation processes (NO to NO2 and NO2-assisted soot oxidation), promoting higher stability and higher CO2 selectivity. BM-C700 shows the best catalytic performance, i.e., the highest thermal stability and a high initial soot oxidation rate, which decreases the accumulation of soot during the soot oxidation and, consequently, minimizes the catalyst deactivation.
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Zhao P, Feng N, Fang F, Wan H, Guan G. Surface acid etching for efficient anchoring of potassium on 3DOM La 0.8Sr 0.2MnO 3 catalyst: An integration strategy for boosting soot and NOx simultaneous elimination. JOURNAL OF HAZARDOUS MATERIALS 2021; 409:124916. [PMID: 33422755 DOI: 10.1016/j.jhazmat.2020.124916] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Revised: 11/25/2020] [Accepted: 12/18/2020] [Indexed: 06/12/2023]
Abstract
The emission of soot and NOx is one of the most severe environmental issues, and the key factor is the development of catalysts in after-treatment systems. In this study, an innovative non-noble metal catalyst, named HKLSM, was fabricated by etching 3DOM La0.8Sr0.2MnO3 with citric acid and synchronously anchoring potassium salt, for soot and NOx simultaneous removal. The citric acid could not only slightly erode the 3DOM skeleton, thereby beneficial to the dispersion of potassium, but also react with high-valence state Mn to generate abundant coordination unsaturated Mn3+ sites, which could produce more active oxygen species. Moreover, HKLSM showed a higher NOx adsorption capability than the samples that were not subjected to acid etching. This adsorbed NOx could be stored as NO3- species, which could facilitate soot combustion. Among all the as-prepared catalysts, HKLSM demonstrated a competitive soot combustion activity with a T50 value of 368 °C, a TOF value of 3.24 × 10-4 s-1, a reaction rate of 1.87 × 10-7 molg-1s-1, a total NOx to N2 yield of 42.0% and favorable reusability and water-resistance. This integration strategy can rationalize an alternative protocol to soot and NOx simultaneous elimination or even other catalysis systems.
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Affiliation(s)
- Peng Zhao
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, Jiangsu Collaborative Innovation Center for Advanced Inorganic Function Composites, Nanjing Tech University, Nanjing 210009, PR China
| | - Nengjie Feng
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, Jiangsu Collaborative Innovation Center for Advanced Inorganic Function Composites, Nanjing Tech University, Nanjing 210009, PR China.
| | - Fan Fang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, Jiangsu Collaborative Innovation Center for Advanced Inorganic Function Composites, Nanjing Tech University, Nanjing 210009, PR China
| | - Hui Wan
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, Jiangsu Collaborative Innovation Center for Advanced Inorganic Function Composites, Nanjing Tech University, Nanjing 210009, PR China
| | - Guofeng Guan
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, Jiangsu Collaborative Innovation Center for Advanced Inorganic Function Composites, Nanjing Tech University, Nanjing 210009, PR China.
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Fe-doped LaNi1-xFexO3 perovskite oxides for enhanced visible-light-driven photocatalytic activity. J SOLID STATE CHEM 2021. [DOI: 10.1016/j.jssc.2021.122033] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Hong Y, Wang D, Lin C, Luo S, Pan Q, Li L, Shi K. Room-temperature efficient NO 2 gas sensors fabricated by porous 3D flower-like ZnAl-layered double hydroxides. NEW J CHEM 2020. [DOI: 10.1039/d0nj04263c] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Three-dimensional (3D) flower-like zinc and aluminum-sodium dodecyl sulfate-layered double hydroxides (ZnAl-SDS-LDHs) intercalated by anions were prepared using a simple one-step hydrothermal method.
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Affiliation(s)
- Ye Hong
- Key Laboratory of Functional Inorganic Material Chemistry
- Ministry of Education
- School of Chemistry and Material Science
- Heilongjiang University
- Harbin
| | - Di Wang
- Key Laboratory of Functional Inorganic Material Chemistry
- Ministry of Education
- School of Chemistry and Material Science
- Heilongjiang University
- Harbin
| | - Chong Lin
- Key Laboratory of Functional Inorganic Material Chemistry
- Ministry of Education
- School of Chemistry and Material Science
- Heilongjiang University
- Harbin
| | - Shuiting Luo
- Key Laboratory of Functional Inorganic Material Chemistry
- Ministry of Education
- School of Chemistry and Material Science
- Heilongjiang University
- Harbin
| | - Qingjiang Pan
- Key Laboratory of Functional Inorganic Material Chemistry
- Ministry of Education
- School of Chemistry and Material Science
- Heilongjiang University
- Harbin
| | - Li Li
- Key Laboratory of Functional Inorganic Material Chemistry
- Ministry of Education
- School of Chemistry and Material Science
- Heilongjiang University
- Harbin
| | - Keying Shi
- Key Laboratory of Functional Inorganic Material Chemistry
- Ministry of Education
- School of Chemistry and Material Science
- Heilongjiang University
- Harbin
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