1
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Yasumura S, Nagai K, Miyazaki S, Qian Y, Chen D, Toyao T, Kamiya Y, Shimizu KI. Low-Temperature Methane Combustion Using Ozone over Coβ Catalyst. J Am Chem Soc 2024. [PMID: 39031765 DOI: 10.1021/jacs.4c05967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/22/2024]
Abstract
Catalytic methane (CH4) combustion is a promising approach to reducing the release of unburned methane in exhaust gas. Here, we report Co-exchanged β zeolite (Coβ) as an efficient catalyst for CH4 combustion using O3. A series of ion-exchanged β zeolites (Co, Ni, Mn, Fe, and Pd) are subjected to the catalytic test, and Coβ exhibits a superior performance in a low-temperature region (<100 °C). The results of X-ray absorption spectroscopy (XAS) and catalytic tests for Coβ with different Co loadings indicate the isolated Co species is the plausible active site. The reaction mechanism of CH4 combustion over the isolated Co2+ cation is theoretically investigated by the single-component artificial force-induced reaction (SC-AFIR) method to thoroughly search for possible reaction routes. The resulting path toward CO2 formation shows an activation energy of 73 kJ/mol for the rate-determining step and an exothermicity of 1025 kJ/mol, which supports the experimental results. During a long-term catalytic test for 160 h without external heating, the CH4 conversion gradually decreases from 80 to 40%, but the conversion fully recovers after dehydration at 500 °C (0.5 h). The copresence of H2O and CO exhibits a negative impact on the catalytic activity, while NO and SO2 do not markedly change the catalytic activity.
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Affiliation(s)
- Shunsaku Yasumura
- Institute of Industrial Science, The University of Tokyo, Komaba 4-6-1, Meguro, Tokyo 153-8505, Japan
| | - Ken Nagai
- Institute for Catalysis, Hokkaido University, N-21, W-10, Kita-ku, Sapporo 001-0021, Japan
| | - Shinta Miyazaki
- Institute for Catalysis, Hokkaido University, N-21, W-10, Kita-ku, Sapporo 001-0021, Japan
| | - Yucheng Qian
- Institute for Catalysis, Hokkaido University, N-21, W-10, Kita-ku, Sapporo 001-0021, Japan
| | - Duotian Chen
- Institute for Catalysis, Hokkaido University, N-21, W-10, Kita-ku, Sapporo 001-0021, Japan
| | - Takashi Toyao
- Institute for Catalysis, Hokkaido University, N-21, W-10, Kita-ku, Sapporo 001-0021, Japan
| | - Yuichi Kamiya
- Faculty of Environmental Earth Science, Hokkaido University, N-5, K-10, Kita-ku, Sapporo 060-0810, Japan
| | - Ken-Ichi Shimizu
- Institute for Catalysis, Hokkaido University, N-21, W-10, Kita-ku, Sapporo 001-0021, Japan
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2
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Tan L, Xiang G, Liu Z. Thermally stable Pd/CeO 2@SiO 2 with a core-shell structure for catalytic lean methane combustion. NANOSCALE 2024. [PMID: 38494927 DOI: 10.1039/d3nr06620g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/19/2024]
Abstract
Noble metal catalysts exhibit high catalytic activity in lean CH4 combustion at low temperatures. However, the high surface energy of noble metal nanoparticles makes them susceptible to deactivation due to migratory-aggregation during the catalytic process. Herein, a core-shell structure with a Pd/CeO2 core and a SiO2 shell (denoted as Pd/CeO2@SiO2) was designed and prepared to enhance the thermal stability for catalytic lean CH4 combustion. A series of characterization methods demonstrated the successful encapsulation of SiO2 and the modified thermal stability. The results of activity tests indicated that Pd/CeO2@SiO2 exhibited the optimal catalytic performance. After seven runs, Pd/CeO2@SiO2 achieved 90% conversion of CH4 at 385 °C compared to Pd/CeO2 at 440 °C. The remarkable catalytic performance was attributed to the synergistic effect of strengthened metal-support interactions and the core-shell structure. On the one hand, the migration and aggregation of Pd nanoparticles were limited due to the protection of the SiO2 shell layer. On the other hand, the SiO2 shell layer further enhanced the interactions between the Pd nanoparticles and CeO2, thus promoting the formation of PdxCe1-xO2-δ solid solutions and active oxygen species, which were beneficial for the improvement of the stability and redox capacity of the catalyst.
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Affiliation(s)
- Linyan Tan
- Advanced Catalytic Engineering Research Centre of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China.
| | - Ganghua Xiang
- Advanced Catalytic Engineering Research Centre of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China.
| | - Zhigang Liu
- Advanced Catalytic Engineering Research Centre of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China.
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3
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Yasumura S, Saita K, Miyakage T, Nagai K, Kon K, Toyao T, Maeno Z, Taketsugu T, Shimizu KI. Designing main-group catalysts for low-temperature methane combustion by ozone. Nat Commun 2023; 14:3926. [PMID: 37400448 DOI: 10.1038/s41467-023-39541-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Accepted: 06/16/2023] [Indexed: 07/05/2023] Open
Abstract
The catalytic combustion of methane at a low temperature is becoming increasingly key to controlling unburned CH4 emissions from natural gas vehicles and power plants, although the low activity of benchmark platinum-group-metal catalysts hinders its broad application. Based on automated reaction route mapping, we explore main-group elements catalysts containing Si and Al for low-temperature CH4 combustion with ozone. Computational screening of the active site predicts that strong Brønsted acid sites are promising for methane combustion. We experimentally demonstrate that catalysts containing strong Bronsted acid sites exhibit improved CH4 conversion at 250 °C, correlating with the theoretical predictions. The main-group catalyst (proton-type beta zeolite) delivered a reaction rate that is 442 times higher than that of a benchmark catalyst (5 wt% Pd-loaded Al2O3) at 190 °C and exhibits higher tolerance to steam and SO2. Our strategy demonstrates the rational design of earth-abundant catalysts based on automated reaction route mapping.
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Affiliation(s)
- Shunsaku Yasumura
- Institute for Catalysis, Hokkaido University, N-21 W-10, Sapporo, Hokkaido, 001-0021, Japan
| | - Kenichiro Saita
- Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo, Hokkaido, 060-0810, Japan
| | - Takumi Miyakage
- Institute for Catalysis, Hokkaido University, N-21 W-10, Sapporo, Hokkaido, 001-0021, Japan
| | - Ken Nagai
- Institute for Catalysis, Hokkaido University, N-21 W-10, Sapporo, Hokkaido, 001-0021, Japan
| | - Kenichi Kon
- Institute for Catalysis, Hokkaido University, N-21 W-10, Sapporo, Hokkaido, 001-0021, Japan
| | - Takashi Toyao
- Institute for Catalysis, Hokkaido University, N-21 W-10, Sapporo, Hokkaido, 001-0021, Japan
| | - Zen Maeno
- School of Advanced Engineering, Kogakuin University, Tokyo, 192-0015, Japan
| | - Tetsuya Taketsugu
- Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo, Hokkaido, 060-0810, Japan
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Sapporo, Hokkaido, 001-0021, Japan
| | - Ken-Ichi Shimizu
- Institute for Catalysis, Hokkaido University, N-21 W-10, Sapporo, Hokkaido, 001-0021, Japan.
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4
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Stonkus O, Kibis L, Slavinskaya E, Zadesenets A, Garkul I, Kardash T, Stadnichenko A, Korenev S, Podyacheva O, Boronin A. Pd-Ceria/CNMs Composites as Catalysts for CO and CH 4 Oxidation. MATERIALS (BASEL, SWITZERLAND) 2023; 16:4257. [PMID: 37374441 DOI: 10.3390/ma16124257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 06/01/2023] [Accepted: 06/02/2023] [Indexed: 06/29/2023]
Abstract
The application of composite materials as catalysts for the oxidation of CO and other toxic compounds is a promising approach for air purification. In this work, the composites comprising palladium and ceria components supported on multiwall carbon nanotubes, carbon nanofibers and Sibunit were studied in the reactions of CO and CH4 oxidation. The instrumental methods showed that the defective sites of carbon nanomaterials (CNMs) successfully stabilize the deposited components in a highly-dispersed state: PdO and CeO2 nanoparticles, subnanosized PdOx and PdxCe1-xO2-δ clusters with an amorphous structure, as well as single Pd and Ce atoms, are formed. It was shown that the reactant activation process occurs on palladium species with the participation of oxygen from the ceria lattice. The presence of interblock contacts between PdO and CeO2 nanoparticles has an important effect on oxygen transfer, which consequently affects the catalytic activity. The morphological features of the CNMs, as well as the defect structure, have a strong influence on the particle size and mutual stabilization of the deposited PdO and CeO2 components. The optimal combination of highly dispersed PdOx and PdxCe1-xO2-δ species, as well as PdO nanoparticles in the CNTs-based catalyst, makes it highly effective in both studied oxidation reactions.
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Affiliation(s)
- Olga Stonkus
- Boreskov Institute of Catalysis, Pr. Lavrentieva 5, 630090 Novosibirsk, Russia
| | - Lidiya Kibis
- Boreskov Institute of Catalysis, Pr. Lavrentieva 5, 630090 Novosibirsk, Russia
| | - Elena Slavinskaya
- Boreskov Institute of Catalysis, Pr. Lavrentieva 5, 630090 Novosibirsk, Russia
| | - Andrey Zadesenets
- Nikolaev Institute of Inorganic Chemistry, Pr. Lavrentieva 3, 630090 Novosibirsk, Russia
| | - Ilia Garkul
- Nikolaev Institute of Inorganic Chemistry, Pr. Lavrentieva 3, 630090 Novosibirsk, Russia
| | - Tatyana Kardash
- Boreskov Institute of Catalysis, Pr. Lavrentieva 5, 630090 Novosibirsk, Russia
| | - Andrey Stadnichenko
- Boreskov Institute of Catalysis, Pr. Lavrentieva 5, 630090 Novosibirsk, Russia
| | - Sergey Korenev
- Nikolaev Institute of Inorganic Chemistry, Pr. Lavrentieva 3, 630090 Novosibirsk, Russia
| | - Olga Podyacheva
- Boreskov Institute of Catalysis, Pr. Lavrentieva 5, 630090 Novosibirsk, Russia
| | - Andrei Boronin
- Boreskov Institute of Catalysis, Pr. Lavrentieva 5, 630090 Novosibirsk, Russia
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5
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Wu M, Li W, Zhu C, Wu W, Zhang L, Zheng T, Fu Y, Yuan L. Single‐Step Oxidation of Low‐Concentration Methane to Methanol in the Gaseous Phase Using Ceria‐Based Iridium‐Copper Catalysts. ChemistrySelect 2023. [DOI: 10.1002/slct.202204745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Mingwei Wu
- Laboratory of Clean Low-Carbon Energy, Department of Thermal Science and Energy Engineering University of Science and Technology of China Hefei 230026 China
| | - Wenzhi Li
- Laboratory of Clean Low-Carbon Energy, Department of Thermal Science and Energy Engineering University of Science and Technology of China Hefei 230026 China
- Institute of Energy, Hefei Comprehensive National Science Center Hefei 230031 China
| | - Chen Zhu
- Laboratory of Clean Low-Carbon Energy, Department of Thermal Science and Energy Engineering University of Science and Technology of China Hefei 230026 China
| | - Wenjian Wu
- Laboratory of Clean Low-Carbon Energy, Department of Thermal Science and Energy Engineering University of Science and Technology of China Hefei 230026 China
| | - Lulu Zhang
- National & Local Joint Engineering Research Center of Precision Coal Mining Anhui University of Science and Technology Huainan 232001 China
| | - Taimin Zheng
- National & Local Joint Engineering Research Center of Precision Coal Mining Anhui University of Science and Technology Huainan 232001 China
| | - Yan Fu
- National & Local Joint Engineering Research Center of Precision Coal Mining Anhui University of Science and Technology Huainan 232001 China
| | - Liang Yuan
- National & Local Joint Engineering Research Center of Precision Coal Mining Anhui University of Science and Technology Huainan 232001 China
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6
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Nkinahamira F, Yang R, Zhu R, Zhang J, Ren Z, Sun S, Xiong H, Zeng Z. Current Progress on Methods and Technologies for Catalytic Methane Activation at Low Temperatures. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2204566. [PMID: 36504369 PMCID: PMC9929156 DOI: 10.1002/advs.202204566] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 10/21/2022] [Indexed: 06/17/2023]
Abstract
Methane (CH4 ) is an attractive energy source and important greenhouse gas. Therefore, from the economic and environmental point of view, scientists are working hard to activate and convert CH4 into various products or less harmful gas at low-temperature. Although the inert nature of CH bonds requires high dissociation energy at high temperatures, the efforts of researchers have demonstrated the feasibility of catalysts to activate CH4 at low temperatures. In this review, the efficient catalysts designed to reduce the CH4 oxidation temperature and improve conversion efficiencies are described. First, noble metals and transition metal-based catalysts are summarized for activating CH4 in temperatures ranging from 50 to 500 °C. After that, the partial oxidation of CH4 at relatively low temperatures, including thermocatalysis in the liquid phase, photocatalysis, electrocatalysis, and nonthermal plasma technologies, is briefly discussed. Finally, the challenges and perspectives are presented to provide a systematic guideline for designing and synthesizing the highly efficient catalysts in the complete/partial oxidation of CH4 at low temperatures.
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Affiliation(s)
- François Nkinahamira
- State Key Laboratory of Urban Water Resource and EnvironmentShenzhen Key Laboratory of Organic Pollution Prevention and ControlSchool of Civil and Environmental EngineeringHarbin Institute of Technology ShenzhenShenzhen518055P. R. China
| | - Ruijie Yang
- Department of Materials Science and EngineeringCity University of Hong Kong83 Tat Chee AvenueKowloonHong Kong999077P. R. China
| | - Rongshu Zhu
- State Key Laboratory of Urban Water Resource and EnvironmentShenzhen Key Laboratory of Organic Pollution Prevention and ControlSchool of Civil and Environmental EngineeringHarbin Institute of Technology ShenzhenShenzhen518055P. R. China
| | - Jingwen Zhang
- State Key Laboratory of Urban Water Resource and EnvironmentShenzhen Key Laboratory of Organic Pollution Prevention and ControlSchool of Civil and Environmental EngineeringHarbin Institute of Technology ShenzhenShenzhen518055P. R. China
| | - Zhaoyong Ren
- State Key Laboratory of Urban Water Resource and EnvironmentShenzhen Key Laboratory of Organic Pollution Prevention and ControlSchool of Civil and Environmental EngineeringHarbin Institute of Technology ShenzhenShenzhen518055P. R. China
| | - Senlin Sun
- State Key Laboratory of Urban Water Resource and EnvironmentShenzhen Key Laboratory of Organic Pollution Prevention and ControlSchool of Civil and Environmental EngineeringHarbin Institute of Technology ShenzhenShenzhen518055P. R. China
| | - Haifeng Xiong
- State Key Laboratory of Physical Chemistry of Solid SurfacesCollege of Chemistry and Chemical EngineeringXiamen UniversityXiamen361005P. R. China
| | - Zhiyuan Zeng
- Department of Materials Science and EngineeringCity University of Hong Kong83 Tat Chee AvenueKowloonHong Kong999077P. R. China
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7
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Zhang L, Chen R, Tu Y, Gong X, Cao X, Xu Q, Li Y, Ye B, Ye Y, Zhu J. Revealing the Crystal Facet Effect of Ceria in Pd/CeO 2 Catalysts toward the Selective Oxidation of Benzyl Alcohol. ACS Catal 2023. [DOI: 10.1021/acscatal.2c04252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Leijie Zhang
- National Synchrotron Radiation Laboratory, Department of Chemical Physics and Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, University of Science and Technology of China, Hefei230029, People’s Republic of China
| | - Runhua Chen
- State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei, Anhui230026, People’s Republic of China
| | - Yi Tu
- National Synchrotron Radiation Laboratory, Department of Chemical Physics and Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, University of Science and Technology of China, Hefei230029, People’s Republic of China
| | - Xiaoyu Gong
- National Synchrotron Radiation Laboratory, Department of Chemical Physics and Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, University of Science and Technology of China, Hefei230029, People’s Republic of China
| | - Xu Cao
- National Synchrotron Radiation Laboratory, Department of Chemical Physics and Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, University of Science and Technology of China, Hefei230029, People’s Republic of China
| | - Qian Xu
- National Synchrotron Radiation Laboratory, Department of Chemical Physics and Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, University of Science and Technology of China, Hefei230029, People’s Republic of China
| | - Yu Li
- National Synchrotron Radiation Laboratory, Department of Chemical Physics and Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, University of Science and Technology of China, Hefei230029, People’s Republic of China
| | - Bangjiao Ye
- State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei, Anhui230026, People’s Republic of China
| | - Yifan Ye
- National Synchrotron Radiation Laboratory, Department of Chemical Physics and Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, University of Science and Technology of China, Hefei230029, People’s Republic of China
| | - Junfa Zhu
- National Synchrotron Radiation Laboratory, Department of Chemical Physics and Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, University of Science and Technology of China, Hefei230029, People’s Republic of China
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8
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Modulating the strong metal-support interaction of single-atom catalysts via vicinal structure decoration. Nat Commun 2022; 13:4244. [PMID: 35869061 PMCID: PMC9307766 DOI: 10.1038/s41467-022-31966-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Accepted: 07/06/2022] [Indexed: 01/19/2023] Open
Abstract
AbstractMetal-support interaction predominately determines the electronic structure of metal atoms in single-atom catalysts (SACs), largely affecting their catalytic performance. However, directly tuning the metal-support interaction in oxide supported SACs remains challenging. Here, we report a new strategy to subtly regulate the strong covalent metal-support interaction (CMSI) of Pt/CoFe2O4 SACs by a simple water soaking treatment. Detailed studies reveal that the CMSI is weakened by the bonding of H+, generated from water dissociation, onto the interface of Pt-O-Fe, resulting in reduced charge transfer from metal to support and leading to an increase of C-H bond activation in CH4 combustion by more than 50 folds. This strategy is general and can be extended to other CMSI-existed metal-supported catalysts, providing a powerful tool to modulating the catalytic performance of SACs.
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9
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Stonkus OA, Zadesenets AV, Slavinskaya EM, Stadnichenko AI, Svetlichnyi VA, Shubin YV, Korenev SV, Boronin AI. Pd/CeO2-SnO2 catalysts with varying tin content: Promotion of catalytic properties and structure modification. CATAL COMMUN 2022. [DOI: 10.1016/j.catcom.2022.106554] [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] Open
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10
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Tang Z, Zhang T, Luo D, Wang Y, Hu Z, Yang RT. Catalytic Combustion of Methane: From Mechanism and Materials Properties to Catalytic Performance. ACS Catal 2022. [DOI: 10.1021/acscatal.2c03321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ziyu Tang
- Institute of Industrial Catalysis, School of Chemical Engineering and Technology, Xi’an Jiaotong University, Xi’anShaanxi710049, China
| | - Tao Zhang
- Institute of Industrial Catalysis, School of Chemical Engineering and Technology, Xi’an Jiaotong University, Xi’anShaanxi710049, China
| | - Decun Luo
- Institute of Industrial Catalysis, School of Chemical Engineering and Technology, Xi’an Jiaotong University, Xi’anShaanxi710049, China
| | - Yongjie Wang
- School of Science, Harbin Institute of Technology, Shenzhen518055, China
| | - Zhun Hu
- Institute of Industrial Catalysis, School of Chemical Engineering and Technology, Xi’an Jiaotong University, Xi’anShaanxi710049, China
| | - Ralph T. Yang
- Department of Chemical Engineering, University of Michigan, 3074 H.H. Dow, 2300 Hayward Street, Ann Arbor, Michigan48109-2136, United States
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11
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Jiménez JD, Betancourt LE, Danielis M, Zhang H, Zhang F, Orozco I, Xu W, Llorca J, Liu P, Trovarelli A, Rodríguez JA, Colussi S, Senanayake SD. Identification of Highly Selective Surface Pathways for Methane Dry Reforming Using Mechanochemical Synthesis of Pd–CeO 2. ACS Catal 2022; 12:12809-12822. [PMID: 36313524 PMCID: PMC9595205 DOI: 10.1021/acscatal.2c01120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 08/24/2022] [Indexed: 11/30/2022]
Abstract
![]()
The methane dry reforming (DRM) reaction mechanism was
explored
via mechanochemically prepared Pd/CeO2 catalysts (PdAcCeO2M), which yield unique Pd–Ce interfaces, where PdAcCeO2M has a distinct reaction mechanism and higher reactivity
for DRM relative to traditionally synthesized impregnated Pd/CeO2 (PdCeO2IW). In situ characterization and density
functional theory calculations revealed that the enhanced chemistry
of PdAcCeO2M can be attributed to the presence of a carbon-modified
Pd0 and Ce4+/3+ surface arrangement, where distinct
Pd–CO intermediate species and strong Pd–CeO2 interactions are activated and sustained exclusively under reaction
conditions. This unique arrangement leads to highly selective and
distinct surface reaction pathways that prefer the direct oxidation
of CHx to CO, identified on PdAcCeO2M using isotope labeled diffuse reflectance infrared Fourier
transform spectroscopy and highlighting linear Pd–CO species
bound on metallic and C-modified Pd, leading to adsorbed HCOO [1595
cm–1] species as key DRM intermediates, stemming
from associative CO2 reduction. The milled materials contrast
strikingly with surface processes observed on IW samples (PdCeO2IW) where the competing reverse water gas shift reaction predominates.
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Affiliation(s)
- Juan D. Jiménez
- Chemistry Division, Brookhaven National Laboratory, Upton, New York11793, United States
| | - Luis E. Betancourt
- Chemistry Division, Brookhaven National Laboratory, Upton, New York11793, United States
| | - Maila Danielis
- Polytechnic Department and INSTM, University of Udine, Via del Cotonificio 108, 33100Udine, Italy
| | - Hong Zhang
- Department of Chemistry, State University of New York Stony Brook, Stony Brook, New York11794, United States
| | - Feng Zhang
- Department of Chemistry, State University of New York Stony Brook, Stony Brook, New York11794, United States
| | - Ivan Orozco
- Department of Chemistry, State University of New York Stony Brook, Stony Brook, New York11794, United States
| | - Wenqian Xu
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Lemont, Illinois60439, United States
| | - Jordi Llorca
- Department of Chemical Engineering, Institute of Energy Technologies, Universitat Politécnica de Catalunya, EEBE, Eduard Maristany 10-14, 08018Barcelona, Spain
| | - Ping Liu
- Chemistry Division, Brookhaven National Laboratory, Upton, New York11793, United States
- Department of Chemistry, State University of New York Stony Brook, Stony Brook, New York11794, United States
| | - Alessandro Trovarelli
- Polytechnic Department and INSTM, University of Udine, Via del Cotonificio 108, 33100Udine, Italy
| | - José A. Rodríguez
- Chemistry Division, Brookhaven National Laboratory, Upton, New York11793, United States
- Department of Chemistry, State University of New York Stony Brook, Stony Brook, New York11794, United States
| | - Sara Colussi
- Polytechnic Department and INSTM, University of Udine, Via del Cotonificio 108, 33100Udine, Italy
| | - Sanjaya D. Senanayake
- Chemistry Division, Brookhaven National Laboratory, Upton, New York11793, United States
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12
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Qi X, Fu J, Jiang K, Chen T, He Y, Li J, Cao J, Wei H, Huang L, Chu H. Suppressing catalyst deactivation on Pd/CeO2 for selective oxidation of glucose into gluconic acid. J Catal 2022. [DOI: 10.1016/j.jcat.2022.08.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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13
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Divins NJ, Braga A, Vendrell X, Serrano I, Garcia X, Soler L, Lucentini I, Danielis M, Mussio A, Colussi S, Villar-Garcia IJ, Escudero C, Trovarelli A, Llorca J. Investigation of the evolution of Pd-Pt supported on ceria for dry and wet methane oxidation. Nat Commun 2022; 13:5080. [PMID: 36038555 PMCID: PMC9424231 DOI: 10.1038/s41467-022-32765-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Accepted: 08/15/2022] [Indexed: 11/09/2022] Open
Abstract
Efficiently treating methane emissions in transportation remains a challenge. Here, we investigate palladium and platinum mono- and bimetallic ceria-supported catalysts synthesized by mechanical milling and by traditional impregnation for methane total oxidation under dry and wet conditions, reproducing those present in the exhaust of natural gas vehicles. By applying a toolkit of in situ synchrotron techniques (X-ray diffraction, X-ray absorption and ambient pressure photoelectron spectroscopies), together with transmission electron microscopy, we show that the synthesis method greatly influences the interaction and structure at the nanoscale. Our results reveal that the components of milled catalysts have a higher ability to transform metallic Pd into Pd oxide species strongly interacting with the support, and achieve a modulated PdO/Pd ratio than traditionally-synthesized catalysts. We demonstrate that the unique structures attained by milling are key for the catalytic activity and correlate with higher methane conversion and longer stability in the wet feed.
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Affiliation(s)
- Núria J Divins
- Institute of Energy Technologies, Universitat Politècnica de Catalunya, EEBE, Eduard Maristany 10-14, 08019, Barcelona, Spain. .,Department of Chemical Engineering, Universitat Politècnica de Catalunya, EEBE, Eduard Maristany 10-14, 08019, Barcelona, Spain. .,Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya, EEBE, Eduard Maristany 10-14, 08019, Barcelona, Spain.
| | - Andrea Braga
- Institute of Energy Technologies, Universitat Politècnica de Catalunya, EEBE, Eduard Maristany 10-14, 08019, Barcelona, Spain.,Department of Chemical Engineering, Universitat Politècnica de Catalunya, EEBE, Eduard Maristany 10-14, 08019, Barcelona, Spain
| | - Xavier Vendrell
- Institute of Energy Technologies, Universitat Politècnica de Catalunya, EEBE, Eduard Maristany 10-14, 08019, Barcelona, Spain.,Department of Chemical Engineering, Universitat Politècnica de Catalunya, EEBE, Eduard Maristany 10-14, 08019, Barcelona, Spain
| | - Isabel Serrano
- Institute of Energy Technologies, Universitat Politècnica de Catalunya, EEBE, Eduard Maristany 10-14, 08019, Barcelona, Spain
| | - Xènia Garcia
- Institute of Energy Technologies, Universitat Politècnica de Catalunya, EEBE, Eduard Maristany 10-14, 08019, Barcelona, Spain.,Department of Chemical Engineering, Universitat Politècnica de Catalunya, EEBE, Eduard Maristany 10-14, 08019, Barcelona, Spain.,Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya, EEBE, Eduard Maristany 10-14, 08019, Barcelona, Spain
| | - Lluís Soler
- Institute of Energy Technologies, Universitat Politècnica de Catalunya, EEBE, Eduard Maristany 10-14, 08019, Barcelona, Spain.,Department of Chemical Engineering, Universitat Politècnica de Catalunya, EEBE, Eduard Maristany 10-14, 08019, Barcelona, Spain.,Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya, EEBE, Eduard Maristany 10-14, 08019, Barcelona, Spain
| | - Ilaria Lucentini
- Institute of Energy Technologies, Universitat Politècnica de Catalunya, EEBE, Eduard Maristany 10-14, 08019, Barcelona, Spain.,Department of Chemical Engineering, Universitat Politècnica de Catalunya, EEBE, Eduard Maristany 10-14, 08019, Barcelona, Spain
| | - Maila Danielis
- Dipartimento Politecnico, Università di Udine, and INSTM, Via del Cotonificio 108, 33100, Udine, Italy
| | - Andrea Mussio
- Dipartimento Politecnico, Università di Udine, and INSTM, Via del Cotonificio 108, 33100, Udine, Italy
| | - Sara Colussi
- Dipartimento Politecnico, Università di Udine, and INSTM, Via del Cotonificio 108, 33100, Udine, Italy
| | - Ignacio J Villar-Garcia
- ALBA Synchrotron Light Source, Carrer de la Llum 2-26, 08290, Cerdanyola del Vallès, Barcelona, Spain
| | - Carlos Escudero
- ALBA Synchrotron Light Source, Carrer de la Llum 2-26, 08290, Cerdanyola del Vallès, Barcelona, Spain
| | - Alessandro Trovarelli
- Dipartimento Politecnico, Università di Udine, and INSTM, Via del Cotonificio 108, 33100, Udine, Italy
| | - Jordi Llorca
- Institute of Energy Technologies, Universitat Politècnica de Catalunya, EEBE, Eduard Maristany 10-14, 08019, Barcelona, Spain. .,Department of Chemical Engineering, Universitat Politècnica de Catalunya, EEBE, Eduard Maristany 10-14, 08019, Barcelona, Spain. .,Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya, EEBE, Eduard Maristany 10-14, 08019, Barcelona, Spain.
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14
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Chang Z, Yu F, Liu Z, Wang Z, Li J, Dai B, Zhang J. Ni-Al mixed metal oxide with rich oxygen vacancies: CO methanation performance and density functional theory study. Chin J Chem Eng 2022. [DOI: 10.1016/j.cjche.2021.07.022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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15
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Ballauri S, Sartoretti E, Novara C, Giorgis F, Piumetti M, Fino D, Russo N, Bensaid S. Wide range temperature stability of palladium on ceria-praseodymia catalysts for complete methane oxidation. Catal Today 2022. [DOI: 10.1016/j.cattod.2021.11.035] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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16
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Kibis LS, Korobova AN, Fedorova EA, Kardash TY, Zadesenets AV, Korenev SV, Stonkus OA, Slavinskaya EM, Podyacheva OY, Boronin AI. APPLICATION OF N-DOPED CARBON NANOTUBES FOR THE PREPARATION OF HIGHLY DISPERSED PdO–CeO2 COMPOSITE CATALYSTS. J STRUCT CHEM+ 2022. [DOI: 10.1134/s0022476622030076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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17
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Effect of the Co3O4 load on the performance of PdO/Co3O4/ZrO2 open cell foam catalysts for the lean combustion of methane: Kinetic and mass transfer regimes. Catal Today 2022. [DOI: 10.1016/j.cattod.2021.03.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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18
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Fiuza TER, Gonçalves DS, Gomes IF, Zanchet D. CeO2-supported Au and AuCu catalysts for CO oxidation: Impact of activation protocol and residual chlorine on the active sites. Catal Today 2021. [DOI: 10.1016/j.cattod.2020.07.034] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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19
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Dong C, Zhou Y, Ta N, Liu W, Li M, Shen W. Shape impact of nanostructured ceria on the dispersion of Pd species. CHINESE JOURNAL OF CATALYSIS 2021. [DOI: 10.1016/s1872-2067(20)63725-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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20
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Mussio A, Danielis M, Divins NJ, Llorca J, Colussi S, Trovarelli A. Structural Evolution of Bimetallic PtPd/CeO 2 Methane Oxidation Catalysts Prepared by Dry Milling. ACS APPLIED MATERIALS & INTERFACES 2021; 13:31614-31623. [PMID: 34077185 PMCID: PMC8283761 DOI: 10.1021/acsami.1c05050] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Accepted: 05/19/2021] [Indexed: 05/29/2023]
Abstract
Bimetallic Pt-Pd catalysts supported on ceria have been prepared by mechanochemical synthesis and tested for lean methane oxidation in dry and wet atmosphere. Results show that the addition of platinum has a negative effect on transient light-off activity, but for Pd/Pt molar ratios between 1:1 and 8:1 an improvement during time-on-stream experiments in wet conditions is observed. The bimetallic samples undergo a complex restructuring during operation, starting from the alloying of Pt and Pd and resulting in the formation of unprecedented "mushroom-like" structures consisting of PdO bases with Pt heads as revealed by high-resolution transmission electron microscopy (HRTEM) analysis. On milled samples, these structures are well-defined and observed at the interface between palladium and ceria, whereas those on the impregnated catalyst appear less ordered and are located randomly on the surface of ceria and of large PdPt clusters. The milled catalyst prepared by first milling Pd metal and ceria followed by the addition of Pt shows better performances compared to a conventional impregnated sample and also to a sample obtained by inverting the Pd-Pt milling order. This has been ascribed to the intimate contact between Pd and CeO2 generated at the nanoscale during the milling process.
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Affiliation(s)
- Andrea Mussio
- Dipartimento
Politecnico, Università degli Studi
di Udine and INSTM, via del Cotonificio 108, 33100 Udine, Italy
| | - Maila Danielis
- Dipartimento
Politecnico, Università degli Studi
di Udine and INSTM, via del Cotonificio 108, 33100 Udine, Italy
| | - Núria J. Divins
- Institute
of Energy Technologies, Department of Chemical Engineering and Barcelona
Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya, EEBE, Eduard Maristany 10-14, 08019 Barcelona, Spain
| | - Jordi Llorca
- Institute
of Energy Technologies, Department of Chemical Engineering and Barcelona
Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya, EEBE, Eduard Maristany 10-14, 08019 Barcelona, Spain
| | - Sara Colussi
- Dipartimento
Politecnico, Università degli Studi
di Udine and INSTM, via del Cotonificio 108, 33100 Udine, Italy
| | - Alessandro Trovarelli
- Dipartimento
Politecnico, Università degli Studi
di Udine and INSTM, via del Cotonificio 108, 33100 Udine, Italy
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21
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Lee J, Lim TH, Lee E, Kim DH. Promoting the Methane Oxidation on Pd/CeO
2
Catalyst by Increasing the Surface Oxygen Mobility via Defect Engineering. ChemCatChem 2021. [DOI: 10.1002/cctc.202100653] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jaeha Lee
- School of Chemical and Biological Engineering Institute of Chemical Processes Seoul National University 1 Gwanak-ro, Gwanak-gu Seoul 151-744 Korea
| | - Tae Hwan Lim
- School of Chemical and Biological Engineering Institute of Chemical Processes Seoul National University 1 Gwanak-ro, Gwanak-gu Seoul 151-744 Korea
| | - Eunwon Lee
- School of Chemical and Biological Engineering Institute of Chemical Processes Seoul National University 1 Gwanak-ro, Gwanak-gu Seoul 151-744 Korea
| | - Do Heui Kim
- School of Chemical and Biological Engineering Institute of Chemical Processes Seoul National University 1 Gwanak-ro, Gwanak-gu Seoul 151-744 Korea
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22
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Wu M, Li W, Zhang X, Xue F, Yang T, Yuan L. Penta‐coordinated Al
3+
Stabilized Defect‐Rich Ceria on Al
2
O
3
Supported Palladium Catalysts for Lean Methane Oxidation. ChemCatChem 2021. [DOI: 10.1002/cctc.202100668] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Mingwei Wu
- Laboratory of Basic Research in Biomass Conversion and Utilization Department of Thermal Science and Energy Engineering University of Science and Technology of China Hefei 230026 P. R. China
| | - Wenzhi Li
- Laboratory of Basic Research in Biomass Conversion and Utilization Department of Thermal Science and Energy Engineering University of Science and Technology of China Hefei 230026 P. R. China
- Institute of Energy Hefei Comprehensive National Science Center Hefei 230031 China
| | - Xia Zhang
- Laboratory of Basic Research in Biomass Conversion and Utilization Department of Thermal Science and Energy Engineering University of Science and Technology of China Hefei 230026 P. R. China
| | - Fengyang Xue
- Laboratory of Basic Research in Biomass Conversion and Utilization Department of Thermal Science and Energy Engineering University of Science and Technology of China Hefei 230026 P. R. China
| | - Tao Yang
- Laboratory of Basic Research in Biomass Conversion and Utilization Department of Thermal Science and Energy Engineering University of Science and Technology of China Hefei 230026 P. R. China
| | - Liang Yuan
- National & Local Joint Engineering Research Center of Precision Coal Mining Anhui University of Science and Technology Huainan 232001 P. R. China
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23
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Electron donation of non-oxide supports boosts O 2 activation on nano-platinum catalysts. Nat Commun 2021; 12:2741. [PMID: 33980837 PMCID: PMC8115247 DOI: 10.1038/s41467-021-22946-y] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Accepted: 03/29/2021] [Indexed: 11/08/2022] Open
Abstract
Activation of O2 is a critical step in heterogeneous catalytic oxidation. Here, the concept of increased electron donors induced by nitrogen vacancy is adopted to propose an efficient strategy to develop highly active and stable catalysts for molecular O2 activation. Carbon nitride with nitrogen vacancies is prepared to serve as a support as well as electron sink to construct a synergistic catalyst with Pt nanoparticles. Extensive characterizations combined with the first-principles calculations reveal that nitrogen vacancies with excess electrons could effectively stabilize metallic Pt nanoparticles by strong p-d coupling. The Pt atoms and the dangling carbon atoms surround the vacancy can synergistically donate electrons to the antibonding orbital of the adsorbed O2. This synergistic catalyst shows great enhancement of catalytic performance and durability in toluene oxidation. The introduction of electron-rich non-oxide substrate is an innovative strategy to develop active Pt-based oxidation catalysts, which could be conceivably extended to a variety of metal-based catalysts for catalytic oxidation. Activation of O2 is a critical step in heterogeneous catalytic oxidation. Here, the authors adopt the concept of increased electron donors induced by nitrogen vacancy to develop an efficient strategy for preparing highly active and stable catalysts for molecular O2 activation.
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24
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Wu M, Li W, Zhang X, Xue F, Yang T, Yuan L. Elucidation of the Active Phase in Pd‐Based Catalysts Supporting on Octahedral CeO
2
for Low‐Temperature Methane Oxidation. ChemistrySelect 2021. [DOI: 10.1002/slct.202100511] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Mingwei Wu
- Laboratory of Basic Research in Biomass Conversion and Utilization Department of Thermal Science and Energy Engineering University of Science and Technology of China Hefei 230026 China
| | - Wenzhi Li
- Laboratory of Basic Research in Biomass Conversion and Utilization Department of Thermal Science and Energy Engineering University of Science and Technology of China Hefei 230026 China
- Institute of Energy Hefei Comprehensive National Science Center, Add. 96 Jinzhai Rd. Hefei 230031 China
| | - Xia Zhang
- Laboratory of Basic Research in Biomass Conversion and Utilization Department of Thermal Science and Energy Engineering University of Science and Technology of China Hefei 230026 China
| | - Fengyang Xue
- Laboratory of Basic Research in Biomass Conversion and Utilization Department of Thermal Science and Energy Engineering University of Science and Technology of China Hefei 230026 China
| | - Tao Yang
- Laboratory of Basic Research in Biomass Conversion and Utilization Department of Thermal Science and Energy Engineering University of Science and Technology of China Hefei 230026 China
| | - Liang Yuan
- National & Local Joint Engineering Research Center of Precision Coal Mining Anhui University of Science and Technology Huainan 232001 China
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25
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Chen S, Li S, You R, Guo Z, Wang F, Li G, Yuan W, Zhu B, Gao Y, Zhang Z, Yang H, Wang Y. Elucidation of Active Sites for CH 4 Catalytic Oxidation over Pd/CeO 2 Via Tailoring Metal–Support Interactions. ACS Catal 2021. [DOI: 10.1021/acscatal.1c00839] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Shiyuan Chen
- Center of Electron Microscopy and State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Songda Li
- Center of Electron Microscopy and State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Ruiyang You
- Center of Electron Microscopy and State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Ziyi Guo
- School of Chemical Engineering, University of New South Wales, Sydney 2052, New South Wales, Australia
| | - Fei Wang
- Center of Electron Microscopy and State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Guanxing Li
- Center of Electron Microscopy and State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Wentao Yuan
- Center of Electron Microscopy and State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Beien Zhu
- Zhangjiang Laboratory, Chinese Academy of Sciences, Shanghai Advanced Research Institute, Shanghai 201210, China
- Key Laboratory of Interfacial Physics and Technology, Chinese Academy of Sciences, Shanghai Institute of Applied Physics, Shanghai 201800, China
| | - Yi Gao
- Zhangjiang Laboratory, Chinese Academy of Sciences, Shanghai Advanced Research Institute, Shanghai 201210, China
- Key Laboratory of Interfacial Physics and Technology, Chinese Academy of Sciences, Shanghai Institute of Applied Physics, Shanghai 201800, China
| | - Ze Zhang
- Center of Electron Microscopy and State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Hangsheng Yang
- Center of Electron Microscopy and State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Yong Wang
- Center of Electron Microscopy and State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China
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26
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Guo LL, Yu J, Wang WW, Liu JX, Guo HC, Ma C, Jia CJ, Chen JX, Si R. Small-sized cuprous oxide species on silica boost acrolein formation via selective oxidation of propylene. CHINESE JOURNAL OF CATALYSIS 2021. [DOI: 10.1016/s1872-2067(20)63636-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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27
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Xiao Y, Li J, Wang C, Zhong F, Zheng Y, Jiang L. Construction and evolution of active palladium species on phase-regulated reducible TiO 2 for methane combustion. Catal Sci Technol 2021. [DOI: 10.1039/d0cy01658f] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Non-traditional amorphous Pd2+ species on the surface of Pd/TiO2 catalysts facilitate CH4 combustion, while formed PdxTi1−xO2 would be detrimental.
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Affiliation(s)
- Yihong Xiao
- National Engineering Research Center of Chemical Fertilizer Catalyst
- Fuzhou University
- Fuzhou
- P. R. China
| | - Juanjuan Li
- National Engineering Research Center of Chemical Fertilizer Catalyst
- Fuzhou University
- Fuzhou
- P. R. China
| | - Chen Wang
- National Engineering Research Center of Chemical Fertilizer Catalyst
- Fuzhou University
- Fuzhou
- P. R. China
| | - Fulan Zhong
- National Engineering Research Center of Chemical Fertilizer Catalyst
- Fuzhou University
- Fuzhou
- P. R. China
| | - Yong Zheng
- National Engineering Research Center of Chemical Fertilizer Catalyst
- Fuzhou University
- Fuzhou
- P. R. China
| | - Lilong Jiang
- National Engineering Research Center of Chemical Fertilizer Catalyst
- Fuzhou University
- Fuzhou
- P. R. China
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28
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Khan HA, Hao J, Tall OE, Farooq A. Yttrium stabilization and Pt addition to Pd/ZrO 2 catalyst for the oxidation of methane in the presence of ethylene and water. RSC Adv 2021; 11:11910-11917. [PMID: 35423755 PMCID: PMC8696560 DOI: 10.1039/d0ra10773e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Accepted: 03/06/2021] [Indexed: 11/21/2022] Open
Abstract
Catalytic oxidation is the most efficient method of minimizing the emissions of harmful pollutants and greenhouse gases. In this study, ZrO2-supported Pd catalysts are investigated for the catalytic oxidation of methane and ethylene. Pd/Y2O3-stabilized ZrO2 (Pd/YSZ) catalysts show attractive catalytic activity for methane and ethylene oxidation. The ZrO2 support containing up to 8 mol% Y2O3 improves the water resistance and hydrothermal stability of the catalyst. All catalysts are characterized by X-ray diffraction (XRD), Brunauer–Emmett–Teller (BET), O2-temperature-programmed desorption (O2-TPD), and CO-chemisorption techniques. It shows that high Pd dispersion and Pd–PdO reciprocation on the Pd/YSZ catalyst results in relatively high stability. In situ diffuse reflectance infrared Fourier-transform (DRIFT) experiments are performed to study the reaction over the surface of the catalyst. Compared with bimetallic catalysts (Pd : Pt), the same amounts of Pd and Pt supported on ZrO2 and Y2O3-stabilized ZrO2 catalysts show enhanced activity for methane and ethylene oxidation, respectively. A mixed hydrocarbon feed, containing methane and ethylene, lowers the CH4 light-off temperature by approximately 80 °C. This shows that ethylene addition has a promotional effect on the light-off temperature of methane. Addition of 8.0% Yttrium (Y) to ZrO2 substantially increased the activity and stability of Pd/ZrO2.![]()
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Affiliation(s)
- Hassnain Abbas Khan
- Clean Combustion Research Center
- Physical Science and Engineering Division
- King Abdullah University of Science and Technology (KAUST)
- Thuwal 23955-6900
- Saudi Arabia
| | - Junyu Hao
- Clean Combustion Research Center
- Physical Science and Engineering Division
- King Abdullah University of Science and Technology (KAUST)
- Thuwal 23955-6900
- Saudi Arabia
| | - Omar El Tall
- KAUST Core Labs
- King Abdullah University of Science and Technology (KAUST)
- Thuwal
- Saudi Arabia
| | - Aamir Farooq
- Clean Combustion Research Center
- Physical Science and Engineering Division
- King Abdullah University of Science and Technology (KAUST)
- Thuwal 23955-6900
- Saudi Arabia
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29
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Lin J, Zhao L, Zheng Y, Xiao Y, Yu G, Zheng Y, Chen W, Jiang L. Facile Strategy to Extend Stability of Simple Component-Alumina-Supported Palladium Catalysts for Efficient Methane Combustion. ACS APPLIED MATERIALS & INTERFACES 2020; 12:56095-56107. [PMID: 33263398 DOI: 10.1021/acsami.0c18188] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
It is of practical importance to develop a stable and accessible methane combustion catalyst which could retain an excellent activity under drastic conditions. Herein, we introduce a facile approach to extend the stability of conventional Pd/Al2O3 catalysts through tailoring the pore size of mesoporous aluminas (MAs) and the interaction between Pd and Al. By modulating the addition of templates (deoxycholic acid and polyvinylpyrrolidone), a series of MAs with tunable and uniform pore size were obtained through a designed sol-gel method. Unexpectedly, Pd/MA-800-5 catalyst prepared with relatively large pore size (ca. 12 nm) MAs exhibited an efficient and sustained performance under a variety of operating conditions, while those prepared with small pore size (ca. 5-7 nm) MAs suffered from a significant loss of activity during high temperature cyclic reactions (280-850 °C) due to the decomposition of confined PdO. The enhancement could be attributed to the suitable particle size, higher crystallinity, generated active sites, improved reducibility, and thermal stability of PdO species. Moreover, the variation of pore size also resulted in a different reaction mechanism. Such a pore size promotion strategy effectively invoked a superior catalytic performance while keeping the catalyst components simple, which can be extended to prepare other high-performance metal oxide-supported catalysts for catalytic applications.
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Affiliation(s)
- Jia Lin
- College of Chemistry and Materials Science, Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering, Fujian Normal University, Fuzhou, Fujian 350007, P. R. China
- College of Environmental Science and Engineering, Fujian Normal University, Fuzhou, Fujian 350007, P. R. China
| | - Lusi Zhao
- Laboratory of Theoretical and Computational Chemistry, Institute of Theoretical Chemistry, Jilin University, Changchun 130023, P. R. China
| | - Yong Zheng
- National Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University, Fuzhou, Fujian 350002, P. R. China
| | - Yihong Xiao
- National Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University, Fuzhou, Fujian 350002, P. R. China
| | - Guangtao Yu
- College of Chemistry and Materials Science, Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering, Fujian Normal University, Fuzhou, Fujian 350007, P. R. China
- Laboratory of Theoretical and Computational Chemistry, Institute of Theoretical Chemistry, Jilin University, Changchun 130023, P. R. China
| | - Ying Zheng
- College of Chemistry and Materials Science, Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering, Fujian Normal University, Fuzhou, Fujian 350007, P. R. China
| | - Wei Chen
- College of Chemistry and Materials Science, Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering, Fujian Normal University, Fuzhou, Fujian 350007, P. R. China
- Laboratory of Theoretical and Computational Chemistry, Institute of Theoretical Chemistry, Jilin University, Changchun 130023, P. R. China
| | - Lilong Jiang
- National Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University, Fuzhou, Fujian 350002, P. R. China
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