1
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Steiner C, Malashchuk V, Kubinski D, Hagen G, Moos R. Microwave-Based State Diagnosis of Three-Way Catalysts: Impact Factors and Application Recommendations. SENSORS (BASEL, SWITZERLAND) 2024; 24:4091. [PMID: 39000871 PMCID: PMC11243869 DOI: 10.3390/s24134091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 06/13/2024] [Accepted: 06/18/2024] [Indexed: 07/16/2024]
Abstract
This study reassesses an overview of the potential of the radio frequency (RF)-based state diagnostics of three-way catalysts (TWC) based on a previous study with an emphasis on the defect chemistry of the catalyst material during reoxidation and reduction. Some data are based on the previous works but are newly processed, and the signal parameters resonant frequency and inverse quality factor are evaluated with respect to applicability. The RF-based method uses electromagnetic resonances in a cavity resonator to provide information on the storage level of the oxygen storage component. The analysis focuses on a holistic investigation and evaluation of the major effects influencing the RF signal during operation. On the one hand, the response to the oxygen storage behavior and the resolution of the measurement method are considered. Therefore, this study merges original data from multiple former publications to provide a comprehensive insight into important measurement effects and their defect chemistry background. On the other hand, the most important cross-sensitivities are discussed and their impact during operation is evaluated. Additionally, the effect of catalyst aging is analyzed. The effects are presented separately for the two resonant parameters: resonant frequency and (unloaded) quality factor. Overall, the data suggest that the quality factor has a way higher signal quality at low temperatures (<400 °C) and the resonant frequency is primarily suitable for high operating temperatures. At most operating points, the quality factor is even more robust against interferences such as exhaust gas stoichiometry and water content. Correctly estimating the catalyst temperature is the most important factor for reliable results, which can be achieved by combining the information of both resonant signals. In the end, the data indicate that microwave-based state diagnosis is a powerful system for evaluating the oxygen storage level over the entire operating range of a TWC. As a research tool and in its application, the system can therefore contribute to the improvement of the emission control of future gasoline vehicles.
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Affiliation(s)
- Carsten Steiner
- Bayreuth Engine Research Center (BERC), Department of Functional Materials, University of Bayreuth, 95447 Bayreuth, Germany
| | - Vladimir Malashchuk
- Bayreuth Engine Research Center (BERC), Department of Functional Materials, University of Bayreuth, 95447 Bayreuth, Germany
| | | | - Gunter Hagen
- Bayreuth Engine Research Center (BERC), Department of Functional Materials, University of Bayreuth, 95447 Bayreuth, Germany
| | - Ralf Moos
- Bayreuth Engine Research Center (BERC), Department of Functional Materials, University of Bayreuth, 95447 Bayreuth, Germany
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2
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Effective Improvement of Pt Catalyst for Exhaust Gas Purification by Using the Highly Crystallized CeO2 as an Additive. Top Catal 2023. [DOI: 10.1007/s11244-022-01745-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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3
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Construction of bimetallic Pt–Pd/CeO2–ZrO2–La2O3 catalysts with different Pt/Pd ratios and its structure–activity correlations for three-way catalytic performance. J RARE EARTH 2022. [DOI: 10.1016/j.jre.2022.10.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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4
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Jing Y, Wang G, Mine S, Kawai J, Toyoshima R, Kondoh H, Zhang X, Nagaoka S, Shimizu KI, Toyao T. Promoting Effect of Basic Metal Additives on DeNOx Reactions over Pt-Based Three-Way Catalysts. J Catal 2022. [DOI: 10.1016/j.jcat.2022.10.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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5
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Chen S, Zhu M, Wang S, Xiang J, Huang L, Lan L. Synthesis of an Advanced Pd–Rh Bimetallic Three-Way Catalyst for Gasoline Engine Emission Control with the Assistance of Citric Acid. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2022. [DOI: 10.1134/s003602442206022x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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6
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Chen K, Wan J, Lin J, Zhou R. Comparative study of three-way catalytic performance over Pd/CeO2-ZrO2-Al2O3 and Pd/La-Al2O3 catalysts: New insights into microstructure and thermal stability. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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7
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The effect of transition metals (Me: Mn, Cu) on Pt/CeO2/Al2O3 catalysts for the catalytic reduction of NO by CO. REACTION KINETICS MECHANISMS AND CATALYSIS 2022. [DOI: 10.1007/s11144-022-02195-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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8
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Kastrinaki G, Kostoglou M, Konstandopoulos AG. In-pore Pt catalyst: Novel single step aerosol synthesis, catalytic oxidation evaluation and reactant access theoretical analysis. Chem Eng Sci 2022. [DOI: 10.1016/j.ces.2021.117329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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9
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Steiner C, Hagen G, Kogut I, Fritze H, Moos R. Analysis of defect chemistry and microstructural effects of non-stoichiometric ceria by the high-temperature microwave cavity perturbation method. Ann Ital Chir 2022. [DOI: 10.1016/j.jeurceramsoc.2021.08.053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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10
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Lan L, Xiang J, Huang L, Huang X, Zhou W, Li H, Zhu Y, Chen S. Synthesis of a highly stable
Pt
/
CeO
2
/
Al
2
O
3
catalyst for gasoline engine emission control by adjusting
Pt
distribution. CAN J CHEM ENG 2021. [DOI: 10.1002/cjce.24191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Li Lan
- College of Materials and Mechatronics Jiangxi Science and Technology Normal University Nanchang China
- College of Food and Bioengineering Chengdu University Chengdu China
| | - Junhuai Xiang
- College of Materials and Mechatronics Jiangxi Science and Technology Normal University Nanchang China
| | - Long Huang
- College of Materials and Mechatronics Jiangxi Science and Technology Normal University Nanchang China
| | - Xin Huang
- College of Mechanical Engineering Chengdu University Chengdu China
| | - Weiqi Zhou
- College of Mechanical Engineering Chengdu University Chengdu China
| | - Hongmei Li
- College of Food and Bioengineering Chengdu University Chengdu China
| | - Yi Zhu
- College of Chemistry Biology and Environment Yuxi Normal University Yuxi China
| | - Shanhu Chen
- College of Chemistry and Chemical Engineering Jiangxi Science and Technology Normal University Nanchang China
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11
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Lan L, Huang X, Zhou W, Li H, Xiang J, Chen S, Chen Y. Development of a thermally stable Pt catalyst by redispersion between CeO 2 and Al 2O 3. RSC Adv 2021; 11:7015-7024. [PMID: 35423211 PMCID: PMC8694907 DOI: 10.1039/d1ra00059d] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Accepted: 01/28/2021] [Indexed: 11/25/2022] Open
Abstract
For catalytic systems consisting of Pt as the active component and CeO2-Al2O3 as the support material, the metal-support interaction between the Pt and CeO2 components is widely applied to inhibit aggregation of Pt species and thus enhance the thermal stability of the catalyst. In this work, a highly thermostable Pt catalyst was prepared by modifying the synthesis procedure for conventional Pt/CeO2/Al2O3 (Pt/Ce/Al) catalyst, that is, the CeO2 component was introduced after deposition of Pt on Al2O3. The obtained CeO2/Pt/Al2O3 (Ce/Pt/Al) catalyst exhibits significantly different aging behavior. During the hydrothermal aging process, redispersion of Pt species from the surface of Al2O3 to the surface of CeO2 occurs, resulting in a stronger metal-support interaction between Pt and CeO2. Thus, the formed Pt-O-Ce bond could act as an anchor to retard aggregation of Pt species and help Pt species stay at a more oxidative state. Consequently, excellent reduction capability and superior three-way catalytic performance are acquired by Ce/Pt/Al-a after hydrothermal aging treatment.
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Affiliation(s)
- Li Lan
- College of Materials and Mechatronics, Jiangxi Science and Technology Normal University Nanchang 330013 P.R. China
- College of Food and Bioengineering, Chengdu University Chengdu 610064 P.R. China
| | - Xin Huang
- College of Mechanical Engineering, Chengdu University Chengdu 610064 P.R. China
| | - Weiqi Zhou
- College of Mechanical Engineering, Chengdu University Chengdu 610064 P.R. China
| | - Hongmei Li
- College of Food and Bioengineering, Chengdu University Chengdu 610064 P.R. China
| | - Junhuai Xiang
- College of Materials and Mechatronics, Jiangxi Science and Technology Normal University Nanchang 330013 P.R. China
| | - Shanhu Chen
- College of Chemistry and Chemical Engineering, Jiangxi Science and Technology Normal University Nanchang 330013 P.R. China
| | - Yaoqiang Chen
- College of Chemistry, Sichuan University Chengdu 610064 P.R. China
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12
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Xi K, Wang Y, Jiang K, Xie J, Zhou Y, Lu H. Support interaction of Pt/CeO2 and Pt/SiC catalysts prepared by nano platinum colloid deposition for CO oxidation. J RARE EARTH 2020. [DOI: 10.1016/j.jre.2019.07.012] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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13
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Li H, Shen M, Wang J, Wang H, Wang J. Effect of Support on CO Oxidation Performance over the Pd/CeO2 and Pd/CeO2–ZrO2 Catalyst. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.9b05351] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Hang Li
- Key Laboratory for Green Chemical Technology of State Education Ministry, School of Chemical Engineering & Technology, Tianjin University, Tianjin 300350, PR China
| | - Meiqing Shen
- Key Laboratory for Green Chemical Technology of State Education Ministry, School of Chemical Engineering & Technology, Tianjin University, Tianjin 300350, PR China
- Collaborative Innovation Centre of Chemical Science and Engineering (Tianjin), Tianjin 300350, PR China
- State Key Laboratory of Engines, Tianjin University, Tianjin 300350, PR China
| | - Jianqiang Wang
- Key Laboratory for Green Chemical Technology of State Education Ministry, School of Chemical Engineering & Technology, Tianjin University, Tianjin 300350, PR China
| | - Hui Wang
- Key Laboratory for Green Chemical Technology of State Education Ministry, School of Chemical Engineering & Technology, Tianjin University, Tianjin 300350, PR China
| | - Jun Wang
- Key Laboratory for Green Chemical Technology of State Education Ministry, School of Chemical Engineering & Technology, Tianjin University, Tianjin 300350, PR China
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14
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Li WJ, Wey MY. Core-shell design and well-dispersed Pd particles for three-way catalysis: Effect of halloysite nanotubes functionalized with Schiff base. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 675:397-407. [PMID: 31030146 DOI: 10.1016/j.scitotenv.2019.04.243] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 04/02/2019] [Accepted: 04/16/2019] [Indexed: 06/09/2023]
Abstract
In this study, we have described the synthesis of core@shell three-way catalyst with well-dispersed Pd nanoparticles which were intercalated into halloysite nanotubes (HNTs) material via ligand assistance. The prepared parameters of Pd@HNTs catalyst included amine source, the molar ratio of amine and aldehyde, and the addition of CeO2 promoter. As a result, Pd@HNTs performed a good dispersion of Pd particles and high stability, which is attributed to the strong interaction between Pd and HNTs with Schiff base ligands and the high thermal resistance of HNTs as a sintering barrier. Moreover, the results of various characteristic analyses revealed that Pd@HNT-E12 (ethylenediamine: salicylaldehyde in a molar ratio of 1:2) exhibited the highest gases conversion to the others, which has excellent redox ability. Furthermore, the addition of CeO2, which acted as both a promoter and a protector, could provide more oxygen vacancies for promoting NO reduction and CO and C3H8 oxidation at gradually elevated temperatures. Such core-shell catalyst Ce@Pd@HNT-E12 could avoid excess CeO2 penetrating into the pore volume of halloysite support and facilitate the three-way catalytic reaction.
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Affiliation(s)
- Wei-Jing Li
- Department of Environmental Engineering, National Chung Hsing University, Taichung 402, Taiwan, ROC
| | - Ming-Yen Wey
- Department of Environmental Engineering, National Chung Hsing University, Taichung 402, Taiwan, ROC.
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15
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Ozawa M, Misaki M, Iwakawa M, Hattori M, Kobayashi K, Higuchi K, Arai S. Low content Pt-doped CeO2 and core-shell type CeO2/ZrO2 model catalysts; microstructure, TPR and three way catalytic activities. Catal Today 2019. [DOI: 10.1016/j.cattod.2018.08.015] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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16
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Exploration of Mn incorporated CeO2 nanoflakes with meso- and macropores for the effective simultaneous catalytic oxidation of carbon monoxide and propane. REACTION KINETICS MECHANISMS AND CATALYSIS 2019. [DOI: 10.1007/s11144-019-01601-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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17
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Li P, Chen X, Li Y, Schwank JW. A review on oxygen storage capacity of CeO2-based materials: Influence factors, measurement techniques, and applications in reactions related to catalytic automotive emissions control. Catal Today 2019. [DOI: 10.1016/j.cattod.2018.05.059] [Citation(s) in RCA: 138] [Impact Index Per Article: 27.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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18
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Cui M, Hou Y, Zhai Z, Zhong Q, Zhang Y, Huang X. Effects of hydrogen peroxide co-precipitation and inert N 2 atmosphere calcination on CeZrLaNd mixed oxides and the catalytic performance used on Pd supported three-way catalysts. RSC Adv 2019; 9:8081-8090. [PMID: 35521185 PMCID: PMC9061782 DOI: 10.1039/c9ra01048c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2019] [Accepted: 03/06/2019] [Indexed: 11/21/2022] Open
Abstract
The unique reversible oxygen storage and release capacity of cerium zirconium mixed oxides makes them ideal washcoat materials of automotive three-way catalysts (TWC). In this work, cerium zirconium mixed oxides of Ce0.15Zr0.79La0.02Nd0.04O2 were prepared via a co-precipitation method. The effects of hydrogen peroxide co-precipitation and inert N2 atmosphere calcination on the structure and properties of cerium zirconium mixed oxides were investigated systematically by Brunauer-Emmett-Teller surface area measurements, X-ray diffraction, scanning electron microscopy, transmission electron microscopy, hydrogen temperature-programmed reduction, oxygen storage capacity (OSC), Raman spectroscopy, and X-ray photoelectron spectroscopy. Additionally, the catalytic performance of palladium supported catalysts was studied. Results show that hydrogen peroxide co-precipitation promotes the dispersion of cerium zirconium particles and enhances crystal grain growth, resulting in good thermal stability of the obtained cerium zirconium mixed oxides. Inert N2 atmosphere calcination also enhances the dispersion of particles, results in smaller and finer crystal grains, enriches pore channels, and significantly improves the surface area, pore volume and OSC, with an OSC of 424.57 μmolO2 g-1, which is a 13.37% increment compared with the common sample. The benefits of hydrogen peroxide co-precipitation and inert N2 atmosphere calcination endow the Pd supported catalysts of cerium zirconium mixed oxides with good three-way catalytic performance.
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Affiliation(s)
- Meisheng Cui
- National Engineering Research Center for Rare Earth Materials, General Research Institute for Nonferrous Metals No. 2, Xinjiekou Wai Street, Haidian District Beijing 100088 PR China .,Grirem Advanced Materials Co., Ltd. No. 43, Beisanhuan Middle Road Beijing 100088 PR China
| | - Yongke Hou
- National Engineering Research Center for Rare Earth Materials, General Research Institute for Nonferrous Metals No. 2, Xinjiekou Wai Street, Haidian District Beijing 100088 PR China .,Grirem Advanced Materials Co., Ltd. No. 43, Beisanhuan Middle Road Beijing 100088 PR China
| | - Zhizhe Zhai
- National Engineering Research Center for Rare Earth Materials, General Research Institute for Nonferrous Metals No. 2, Xinjiekou Wai Street, Haidian District Beijing 100088 PR China
| | - Qiang Zhong
- National Engineering Research Center for Rare Earth Materials, General Research Institute for Nonferrous Metals No. 2, Xinjiekou Wai Street, Haidian District Beijing 100088 PR China .,Grirem Advanced Materials Co., Ltd. No. 43, Beisanhuan Middle Road Beijing 100088 PR China
| | - Yongqi Zhang
- National Engineering Research Center for Rare Earth Materials, General Research Institute for Nonferrous Metals No. 2, Xinjiekou Wai Street, Haidian District Beijing 100088 PR China .,Grirem Advanced Materials Co., Ltd. No. 43, Beisanhuan Middle Road Beijing 100088 PR China
| | - Xiaowei Huang
- National Engineering Research Center for Rare Earth Materials, General Research Institute for Nonferrous Metals No. 2, Xinjiekou Wai Street, Haidian District Beijing 100088 PR China .,Grirem Advanced Materials Co., Ltd. No. 43, Beisanhuan Middle Road Beijing 100088 PR China
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19
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Synthesis of bimetallic AuPt/CeO2 catalysts and their comparative study in CO oxidation under different reaction conditions. REACTION KINETICS MECHANISMS AND CATALYSIS 2019. [DOI: 10.1007/s11144-019-01545-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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20
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Influence of atomic site-specific strain on catalytic activity of supported nanoparticles. Nat Commun 2018; 9:2722. [PMID: 30006550 PMCID: PMC6045581 DOI: 10.1038/s41467-018-05055-1] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Accepted: 06/11/2018] [Indexed: 11/23/2022] Open
Abstract
Heterogeneous catalysis is an enabling technology that utilises transition metal nanoparticles (NPs) supported on oxides to promote chemical reactions. Structural mismatch at the NP–support interface generates lattice strain that could affect catalytic properties. However, detailed knowledge about strain in supported NPs remains elusive. We experimentally measure the strain at interfaces, surfaces and defects in Pt NPs supported on alumina and ceria with atomic resolution using high-precision scanning transmission electron microscopy. The largest strains are observed at the interfaces and are predominantly compressive. Atomic models of Pt NPs with experimentally measured strain distributions are used for first-principles kinetic Monte Carlo simulations of the CO oxidation reaction. The presence of only a fraction of strained surface atoms is found to affect the turnover frequency. These results provide a quantitative understanding of the relationship between strain and catalytic function and demonstrate that strain engineering can potentially be used for catalyst design. Detailed knowledge of how strain influences catalytic reactions remains elusive. Here, the authors experimentally measure the strain in supported Pt nanoparticles on alumina and ceria with atomic resolution and computationally explore how the strain affects the CO oxidation reaction.
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21
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Cheng T, Qiu J, Chen Y, Yan S, Sun M, Feng J, Zhao M, Wang J, Chen Y. Dispersion improvement and activity promotion of Pt catalysts supported on a Ce-based support by pH adjustment. NEW J CHEM 2018. [DOI: 10.1039/c8nj02283f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Pt-based catalysts prepared by pH adjustment display high dispersion and catalytic activity because of strong Pt precursor–support surface interactions.
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Affiliation(s)
| | - Jing Qiu
- College of Chemistry, Sichuan University
- Chengdu
- P. R. China
| | - Yusheng Chen
- College of Chemistry, Sichuan University
- Chengdu
- P. R. China
| | - Shuang Yan
- College of Chemistry, Sichuan University
- Chengdu
- P. R. China
| | - Min Sun
- College of Chemistry, Sichuan University
- Chengdu
- P. R. China
| | - Jie Feng
- College of Chemical Engineering, Sichuan University
- Chengdu
- China
| | - Ming Zhao
- College of Chemistry, Sichuan University
- Chengdu
- P. R. China
| | - Jianli Wang
- College of Chemistry, Sichuan University
- Chengdu
- P. R. China
| | - Yaoqiang Chen
- College of Chemistry, Sichuan University
- Chengdu
- P. R. China
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22
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The effect of hydrogen peroxide on properties of Ce 0.35 Zr 0.55 La 0.055 Pr 0.045 O 2 oxides and the catalytic performance used on Pd supported three-way catalyst. J RARE EARTH 2017. [DOI: 10.1016/j.jre.2017.04.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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23
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Effect of SO2 on Catalytic CO Oxidation Over Nano-Structured, Mesoporous Au/Ce1−xZrxO2 Catalysts. Catal Letters 2017. [DOI: 10.1007/s10562-017-2182-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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24
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Cao K, Shi L, Gong M, Cai J, Liu X, Chu S, Lang Y, Shan B, Chen R. Nanofence Stabilized Platinum Nanoparticles Catalyst via Facet-Selective Atomic Layer Deposition. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2017; 13:1700648. [PMID: 28656628 DOI: 10.1002/smll.201700648] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Revised: 05/04/2017] [Indexed: 06/07/2023]
Abstract
A facet-selective atomic layer deposition method is developed to fabricate oxide nanofence structure to stabilize Pt nanoparticles. CeOx is selectively deposited on Pt nanoparticles' (111) facets and naturally exposes Pt (100) facets. The facet selectivity is realized through different binding energies of Ce precursor fragments chemisorbed on Pt (111) and Pt (100), which is supported by in situ mass gain experiment and corroborated by density functional theory simulations. Such nanofence structure not only has exposed Pt active facets for carbon monoxide oxidation but also forms ceria-metal interfaces that are beneficial for activity enhancement. The composite catalysts show excellent sintering resistance up to 700 °C calcination. CeOx anchors Pt nanoparticles with a strong metal oxide interaction, and nanofence structure around Pt nanoparticles provides physical blocking that suppresses particles migration. The study reveals that forming oxide nanofence structure to encapsulate precious metal nanoparticles is an effective way to simultaneously enhance catalytic activity and thermal stability.
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Affiliation(s)
- Kun Cao
- State Key Laboratory of Digital Manufacturing Equipment and Technology, School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, Hubei, P. R. China
| | - Lu Shi
- State Key Laboratory of Material Processing and Die and Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, Hubei, P. R. China
| | - Miao Gong
- State Key Laboratory of Digital Manufacturing Equipment and Technology, School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, Hubei, P. R. China
| | - Jiaming Cai
- State Key Laboratory of Digital Manufacturing Equipment and Technology, School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, Hubei, P. R. China
| | - Xiao Liu
- State Key Laboratory of Digital Manufacturing Equipment and Technology, School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, Hubei, P. R. China
| | - Shengqi Chu
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Yun Lang
- State Key Laboratory of Material Processing and Die and Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, Hubei, P. R. China
| | - Bin Shan
- State Key Laboratory of Material Processing and Die and Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, Hubei, P. R. China
| | - Rong Chen
- State Key Laboratory of Digital Manufacturing Equipment and Technology, School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, Hubei, P. R. China
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25
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Nilsson Pingel T, Fouladvand S, Heggen M, Dunin-Borkowski RE, Jäger W, Westenberger P, Phifer D, McNeil J, Skoglundh M, Grönbeck H, Olsson E. Three-Dimensional Probing of Catalyst Ageing on Different Length Scales: A Case Study of Changes in Microstructure and Activity for CO Oxidation of a Pt-Pd/Al2
O3
Catalyst. ChemCatChem 2017. [DOI: 10.1002/cctc.201700479] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Torben Nilsson Pingel
- Competence Centre for Catalysis, Department of Physics; Chalmers University of Technology; 41296 Gothenburg Sweden
| | - Sheedeh Fouladvand
- Competence Centre for Catalysis, Department of Chemistry and Chemical Engineering; Chalmers University of Technology; 41296 Gothenburg Sweden
| | - Marc Heggen
- Ernst Ruska-Centre for Microscopy and Spectroscopy with Electrons and Peter Grünberg Institute; Jülich Research Centre; 52425 Jülich Germany
| | - Rafal E. Dunin-Borkowski
- Ernst Ruska-Centre for Microscopy and Spectroscopy with Electrons and Peter Grünberg Institute; Jülich Research Centre; 52425 Jülich Germany
| | - Wolfgang Jäger
- Competence Centre for Catalysis, Department of Physics; Chalmers University of Technology; 41296 Gothenburg Sweden
| | | | - Daniel Phifer
- FEI-Science Group; 5651 GG Eindhoven The Netherlands
| | | | - Magnus Skoglundh
- Competence Centre for Catalysis, Department of Chemistry and Chemical Engineering; Chalmers University of Technology; 41296 Gothenburg Sweden
| | - Henrik Grönbeck
- Competence Centre for Catalysis, Department of Physics; Chalmers University of Technology; 41296 Gothenburg Sweden
| | - Eva Olsson
- Competence Centre for Catalysis, Department of Physics; Chalmers University of Technology; 41296 Gothenburg Sweden
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Ozawa M, Takahashi-Morita M, Kobayashi K, Haneda M. Core-shell type ceria zirconia support for platinum and rhodium three way catalysts. Catal Today 2017. [DOI: 10.1016/j.cattod.2016.06.029] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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UEDA T, TAKEDA H, KAMADA K, HYODO T, SHIMIZU Y. Enhanced CO Response of NASICON-based Gas Sensors Using Oxide-added Pt Sensing Electrode at Low Temperature Operation. ELECTROCHEMISTRY 2017. [DOI: 10.5796/electrochemistry.85.174] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Taro UEDA
- Graduate School of Engineering, Nagasaki University
| | | | - Kai KAMADA
- Graduate School of Engineering, Nagasaki University
| | - Takeo HYODO
- Graduate School of Engineering, Nagasaki University
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28
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Characterization and Activity of Pd–Ir Catalysts in CO and C3H6 Oxidation Under Stoichiometric Conditions. Top Catal 2016. [DOI: 10.1007/s11244-016-0628-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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29
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Kakekhani A, Ismail-Beigi S. Polarization-driven catalysis via ferroelectric oxide surfaces. Phys Chem Chem Phys 2016; 18:19676-95. [DOI: 10.1039/c6cp03170f] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Ferroelectric polarization can tune the surface chemistry: enhancing technologically important catalytic reactions such as NOx direct decomposition and SO2 oxidation.
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Affiliation(s)
- Arvin Kakekhani
- Department of Physics
- Yale University
- New Haven
- USA
- Center for Research on Interface Structure and Phenomena (CRISP)
| | - Sohrab Ismail-Beigi
- Department of Physics
- Yale University
- New Haven
- USA
- Center for Research on Interface Structure and Phenomena (CRISP)
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30
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Tuning Pt dispersion and oxygen mobility of Pt/γ-Al2O3 by Si addition for CO oxidation. REACTION KINETICS MECHANISMS AND CATALYSIS 2015. [DOI: 10.1007/s11144-015-0969-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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