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Wang Y, Xu G, Sun Y, Shi W, Shi X, Yu Y, He H. Creating Atomically Iridium-Doped PdO x Nanoparticles for Efficient and Durable Methane Abatement. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:10357-10367. [PMID: 38728016 DOI: 10.1021/acs.est.4c00868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2024]
Abstract
The urgent environmental concern of methane abatement, attributed to its high global warming potential, necessitates the development of methane oxidation catalysts (MOC) with enhanced low-temperature activity and durability. Herein, an iridium-doped PdOx nanoparticle supported on silicalite-1 zeolite (PdIr/S-1) catalyst was synthesized and applied for methane catalytic combustion. Comprehensive characterizations confirmed the atomically dispersed nature of iridium on the surface of PdOx nanoparticles, creating an Ir4f-O-Pdcus microstructure. The atomically doped Ir transferred more electrons to adjacent oxygen atoms, modifying the electronic structure of PdOx and thus enhancing the redox ability of the PdIr/S-1 catalysts. This electronic modulation facilitated methane adsorption on the Pd site of Ir4f-O-Pdcus, reducing the energy barrier for C-H bond cleavage and thereby increasing the reaction rate for methane oxidation. Consequently, the optimized PdIr0.1/S-1 showed outstanding low-temperature activity for methane combustion (T50 = 276 °C) after aging and maintained long-term stability over 100 h under simulated exhaust conditions. Remarkably, the novel PdIr0.1/S-1 catalyst demonstrated significantly enhanced activity even after undergoing harsh hydrothermal aging at 750 °C for 16 h, significantly outperforming the conventional Pd/Al2O3 catalyst. This work provides valuable insights for designing efficient and durable MOC catalysts, addressing the critical issue of methane abatement.
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Affiliation(s)
- Yingjie Wang
- State Key Joint Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou 341000, China
| | - Guangyan Xu
- State Key Joint Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yanwei Sun
- State Key Joint Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Wei Shi
- State Key Joint Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiaoyan Shi
- State Key Joint Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yunbo Yu
- State Key Joint Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou 341000, China
| | - Hong He
- State Key Joint Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou 341000, China
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2
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Oh J, Boucly A, van Bokhoven JA, Artiglia L, Cargnello M. Palladium Catalysts for Methane Oxidation: Old Materials, New Challenges. Acc Chem Res 2024; 57:23-36. [PMID: 38099741 DOI: 10.1021/acs.accounts.3c00454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
ConspectusMethane complete oxidation is an important reaction that is part of the general scheme used for removing pollutants contained in emissions from internal combustion engines and, more generally, combustion processes. It has also recently attracted interest as an option for the removal of atmospheric methane in the context of negative emission technologies. Methane, a powerful greenhouse gas, can be converted to carbon dioxide and water via its complete oxidation. Despite burning methane being facile because the combustion sustains its complete oxidation after ignition, methane strong C-H bonds require a catalyst to perform the oxidation at low temperatures and in the absence of a flame so as to avoid the formation of nitrogen oxides, such as those produced in flares. This process allows methane removal to be obtained under conditions that usually lead to higher emissions, such as under cold start conditions in the case of internal combustion engines. Among several options that include homo- and heterogeneous catalysts, supported palladium-based catalysts are the most active heterogeneous systems for this reaction. Finely divided palladium can activate C-H bonds at temperatures as low as 150 °C, although complete conversion is usually not reached until 400-500 °C in practical applications. Major goals are to achieve catalytic methane oxidation at as low as possible temperature and to utilize this expensive metal more efficiently.Compared to any other transition metal, palladium and its oxides are orders of magnitude more reactive for methane oxidation in the absence of water. During the last few decades, much research has been devoted to unveiling the origin of the high activity of supported palladium catalysts, their active phase, the effect of support, promoters, and defects, and the effect of reaction conditions with the goal of further improving their reactivity. There is an overall agreement in trends, yet there are noticeable differences in some details of the catalytic performance of palladium, including the active phase under reaction conditions and the reasons for catalyst deactivation and poisoning. In this Account we summarize our work in this space using well-defined catalysts, especially model palladium surfaces and those prepared using colloidal nanocrystals as precursors, and spectroscopic tools to unveil important details about the chemistry of supported palladium catalysts. We describe advanced techniques aimed at elucidating the role of several parameters in the performance of palladium catalysts for methane oxidation as well as in engineering catalysts through advancing fundamental understanding and synthesis methods. We report the state of research on active phases and sites, then move to the role of supports and promoters, and finally discuss stability in catalytic performance and the role of water in the palladium active phase. Overall, we want to emphasize the importance of a fundamental understanding in designing and realizing active and stable palladium-based catalysts for methane oxidation as an example for a variety of energy and environmental applications of nanomaterials in catalysis.
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Affiliation(s)
- Jinwon Oh
- Department of Materials Science and Engineering, Stanford University, Stanford, California 94305, United States
| | - Anthony Boucly
- Laboratory for Catalysis and Sustainable Chemistry (LSK) and Laboratory of Atmospheric Chemistry (LAC), Paul Scherrer Institute, Villigen 5232, Switzerland
| | - Jeroen Anton van Bokhoven
- Laboratory for Catalysis and Sustainable Chemistry (LSK) and Laboratory of Atmospheric Chemistry (LAC), Paul Scherrer Institute, Villigen 5232, Switzerland
- Institute for Chemical and Bioengineering (ICB), ETH Zürich, Zürich 8093, Switzerland
| | - Luca Artiglia
- Laboratory for Catalysis and Sustainable Chemistry (LSK) and Laboratory of Atmospheric Chemistry (LAC), Paul Scherrer Institute, Villigen 5232, Switzerland
| | - Matteo Cargnello
- Department of Chemical Engineering, Stanford University, Stanford, California 94305, United States
- SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
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Salcedo A, Zengel D, Maurer F, Casapu M, Grunwaldt JD, Michel C, Loffreda D. Identifying the Structure of Supported Metal Catalysts Using Vibrational Fingerprints from Ab Initio Nanoscale Models. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2300945. [PMID: 37093193 DOI: 10.1002/smll.202300945] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 04/12/2023] [Indexed: 05/03/2023]
Abstract
Identifying active sites of supported noble metal nanocatalysts remains challenging, since their size and shape undergo changes depending on the support, temperature, and gas mixture composition. Herein, the anharmonic infrared spectrum of adsorbed CO is simulated using density functional theory (DFT) to gain insight into the nature of Pd nanoparticles (NPs) supported on ceria. The authors systematically determine how the simulated infrared spectra are affected by CO coverage, NP size (0.5-1.5 nm), NP morphology (octahedral, icosahedral), and metal-support contact angle, by exploring a diversity of realistic models inspired by ab initio molecular dynamics. The simulated spectra are then used as a spectroscopic fingerprint to characterize nanoparticles in a real catalyst, by comparison with in-situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) experiments. Truncated octahedral NPs with an acute Pd-ceria angle reproduce most of the measurements. In particular, the authors isolate features characteristic of CO adsorbed at the metal-support interface appearing at low frequencies, both seen in simulation and experiment. This work illustrates the strong need for realistic models to provide a robust description of the active sites, especially at the interface of supported metal nanocatalysts, which can be highly dynamic and evolve considerably during reaction.
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Affiliation(s)
- Agustin Salcedo
- ENS de Lyon, CNRS UMR 5182, Laboratoire de Chimie UMR CNRS 5182, 46 Allée d'Italie, 69364, Lyon, France
| | - Deniz Zengel
- Institute for Chemical Technology and Polymer Chemistry (ITCP), Karlsruhe Institute of Technology (KIT), Engesserstraße 20, 76131, Karlsruhe, Germany
| | - Florian Maurer
- Institute for Chemical Technology and Polymer Chemistry (ITCP), Karlsruhe Institute of Technology (KIT), Engesserstraße 20, 76131, Karlsruhe, Germany
| | - Maria Casapu
- Institute for Chemical Technology and Polymer Chemistry (ITCP), Karlsruhe Institute of Technology (KIT), Engesserstraße 20, 76131, Karlsruhe, Germany
| | - Jan-Dierk Grunwaldt
- Institute for Chemical Technology and Polymer Chemistry (ITCP), Karlsruhe Institute of Technology (KIT), Engesserstraße 20, 76131, Karlsruhe, Germany
| | - Carine Michel
- ENS de Lyon, CNRS UMR 5182, Laboratoire de Chimie UMR CNRS 5182, 46 Allée d'Italie, 69364, Lyon, France
| | - David Loffreda
- ENS de Lyon, CNRS UMR 5182, Laboratoire de Chimie UMR CNRS 5182, 46 Allée d'Italie, 69364, Lyon, France
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Evans PE, Wang Y, Sushko PV, Dohnálek Z. Understanding palladium-tellurium cluster formation on WTe 2: From a kinetically hindered distribution to thermodynamically controlled monodispersity. PNAS NEXUS 2023; 2:pgad212. [PMID: 37416870 PMCID: PMC10321376 DOI: 10.1093/pnasnexus/pgad212] [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: 04/13/2023] [Revised: 06/10/2023] [Accepted: 06/15/2023] [Indexed: 07/08/2023]
Abstract
A fundamental understanding of the transition metal dichalcogenide (TMDC)-metal interface is critical for their utilization in a broad range of applications. We investigate how the deposition of palladium (Pd), as a model metal, on WTe2(001), leads to the assembly of Pd into clusters and nanoparticles. Using X-ray photoemission spectroscopy, scanning tunneling microscopy imaging, and ab initio simulations, we find that Pd nucleation is driven by the interaction with and the availability of mobile excess tellurium (Te) leading to the formation of Pd-Te clusters at room temperature. Surprisingly, the nucleation of Pd-Te clusters is not affected by intrinsic surface defects, even at elevated temperatures. Upon annealing, the Pd-Te nanoclusters adopt an identical nanostructure and are stable up to ∼523 K. Density functional theory calculations provide a foundation for our understanding of the mobility of Pd and Te atoms, preferential nucleation of Pd-Te clusters, and the origin of their annealing-induced monodispersity. These results highlight the role the excess chalcogenide atoms may play in the metal deposition process. More broadly, the discoveries of synthetic pathways yielding thermally robust monodispersed nanostructures on TMDCs are critical to the manufacturing of novel quantum and microelectronics devices and catalytically active nano-alloy centers.
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Affiliation(s)
- Prescott E Evans
- Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, WA 99352, USA
| | - Yang Wang
- Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, WA 99352, USA
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5
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Catalytic methane removal to mitigate its environmental effect. Sci China Chem 2023. [DOI: 10.1007/s11426-022-1487-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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6
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Ghampson IT, Yun GN, Kaneko A, Vargheese V, Bando KK, Shishido T, Oyama ST. Effect of Support and Pd Cluster Size on Catalytic Methane Partial Oxidation to Dimethyl Ether Using a NO/O 2 Shuttle. ACS Catal 2022. [DOI: 10.1021/acscatal.2c02887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- I. Tyrone Ghampson
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
- Department of Chemical System Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Gwang-Nam Yun
- Department of Chemical System Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
- Department of Chemical Engineering, Virginia Tech, Blacksburg, Virginia 24061, United States
- Green Carbon Research Center, Korea Research Institute of Chemical Technology (KRICT), 141 Gajeong-ro, Yuseong-gu, Daejeon 34114, Republic of Korea
| | - Arisa Kaneko
- Department of Chemical System Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Vibin Vargheese
- Department of Chemical System Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Kyoko K. Bando
- Nanomaterials Research Institute, National Institute of Advanced Industrial Science and Technology, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
| | - Tetsuya Shishido
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
- Elements Strategy Initiative for Catalysts and Batteries, Kyoto University, 1-30 Goryo-Ohara, Nishikyo-ku, Kyoto 615-8245, Japan
| | - S. Ted Oyama
- School of Chemical Engineering, Fuzhou University, Fuzhou 350116, China
- Department of Chemical System Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
- Department of Chemical Engineering, Virginia Tech, Blacksburg, Virginia 24061, United States
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7
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Bang GJ, Gu GH, Noh J, Jung Y. Activity Trends of Methane Oxidation Catalysts under Emission Conditions. ACS Catal 2022. [DOI: 10.1021/acscatal.2c00842] [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)
- Gi Joo Bang
- Department of Chemical and Biomolecular Engineering (BK21 Four), Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Daejeon 34141, South Korea
| | - Geun Ho Gu
- Department of Chemical and Biomolecular Engineering (BK21 Four), Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Daejeon 34141, South Korea
- School of Energy Technology, Korea Institute of Energy Technology, 200 Hyuksin-ro, Naju, 58330, Republic of Korea
| | - Juhwan Noh
- Department of Chemical and Biomolecular Engineering (BK21 Four), Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Daejeon 34141, South Korea
| | - Yousung Jung
- Department of Chemical and Biomolecular Engineering (BK21 Four), Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Daejeon 34141, South Korea
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8
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Valášková M, Leštinský P, Matějová L, Klemencová K, Ritz M, Schimpf C, Motylenko M, Rafaja D, Bělík J. Hematites Precipitated in Alkaline Precursors: Comparison of Structural and Textural Properties for Methane Oxidation. Int J Mol Sci 2022; 23:ijms23158163. [PMID: 35897740 PMCID: PMC9332227 DOI: 10.3390/ijms23158163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 07/21/2022] [Accepted: 07/22/2022] [Indexed: 12/10/2022] Open
Abstract
Hematite (α-Fe2O3) catalysts prepared using the precipitation methods was found to be highly effective, and therefore, it was studied with methane (CH4), showing an excellent stable performance below 500 °C. This study investigates hematite nanoparticles (NPs) obtained by precipitation in water from the precursor of ferric chloride hexahydrate using precipitating agents NaOH or NH4OH at maintained pH 11 and calcined up to 500 °C for the catalytic oxidation of low concentrations of CH4 (5% by volume in air) at 500 °C to compare their structural state in a CH4 reducing environment. The conversion (%) of CH4 values decreasing with time was discussed according to the course of different transformation of goethite and hydrohematites NPs precursors to magnetite and the structural state of the calcined hydrohematites. The phase composition, the size and morphology of nanocrystallites, thermal transformation of precipitates and the specific surface area of the NPs were characterized in detail by X-ray powder diffraction, transmission electron microscopy, infrared spectroscopy, thermal TG/DTA analysis and nitrogen physisorption measurements. The results support the finding that after goethite dehydration, transformation to hydrohematite due to structurally incorporated water and vacancies is different from hydrohematite α-Fe2O3. The surface area SBET of Fe2O3_NH-70 precipitate composed of protohematite was larger by about 53 m2/g in comparison with Fe2O3_Na-70 precipitate composed of goethite. The oxidation of methane was positively influenced by the hydrohematites of the smaller particle size and the largest lattice volume containing structurally incorporated water and vacancies.
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Affiliation(s)
- Marta Valášková
- Institute of Environmental Technology, CEET, VSB-Technical University of Ostrava, 17. listopadu 15/2172, 708 00 Ostrava, Czech Republic; (P.L.); (L.M.); (K.K.)
- Correspondence: ; Tel.: +420-597-327-308
| | - Pavel Leštinský
- Institute of Environmental Technology, CEET, VSB-Technical University of Ostrava, 17. listopadu 15/2172, 708 00 Ostrava, Czech Republic; (P.L.); (L.M.); (K.K.)
| | - Lenka Matějová
- Institute of Environmental Technology, CEET, VSB-Technical University of Ostrava, 17. listopadu 15/2172, 708 00 Ostrava, Czech Republic; (P.L.); (L.M.); (K.K.)
| | - Kateřina Klemencová
- Institute of Environmental Technology, CEET, VSB-Technical University of Ostrava, 17. listopadu 15/2172, 708 00 Ostrava, Czech Republic; (P.L.); (L.M.); (K.K.)
| | - Michal Ritz
- Department of Chemistry and Physico-Chemical Processes, Faculty of Material Science and Technology, VSB-Technical University of Ostrava, 17. listopadu 15/2172, 708 00 Ostrava, Czech Republic;
| | - Christian Schimpf
- Institute of Materials Science, Technical University Bergakademie Freiberg, Gustav Zeuner Street 5, D-09599 Freiberg, Germany; (C.S.); (M.M.); (D.R.)
| | - Mykhailo Motylenko
- Institute of Materials Science, Technical University Bergakademie Freiberg, Gustav Zeuner Street 5, D-09599 Freiberg, Germany; (C.S.); (M.M.); (D.R.)
| | - David Rafaja
- Institute of Materials Science, Technical University Bergakademie Freiberg, Gustav Zeuner Street 5, D-09599 Freiberg, Germany; (C.S.); (M.M.); (D.R.)
| | - Jakub Bělík
- RPG Recycling, s.r.o., Member of REC Group, Vazová 2143, 688 01 Uhersky Brod, Czech Republic;
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Kumar P, Al-Attas TA, Hu J, Kibria MG. Single Atom Catalysts for Selective Methane Oxidation to Oxygenates. ACS NANO 2022; 16:8557-8618. [PMID: 35638813 DOI: 10.1021/acsnano.2c02464] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Direct conversion of methane (CH4) to C1-2 liquid oxygenates is a captivating approach to lock carbons in transportable value-added chemicals, while reducing global warming. Existing approaches utilizing the transformation of CH4 to liquid fuel via tandemized steam methane reforming and the Fischer-Tropsch synthesis are energy and capital intensive. Chemocatalytic partial oxidation of methane remains challenging due to the negligible electron affinity, poor C-H bond polarizability, and high activation energy barrier. Transition-metal and stoichiometric catalysts utilizing harsh oxidants and reaction conditions perform poorly with randomized product distribution. Paradoxically, the catalysts which are active enough to break C-H also promote overoxidation, resulting in CO2 generation and reduced carbon balance. Developing catalysts which can break C-H bonds of methane to selectively make useful chemicals at mild conditions is vital to commercialization. Single atom catalysts (SACs) with specifically coordinated metal centers on active support have displayed intrigued reactivity and selectivity for methane oxidation. SACs can significantly reduce the activation energy due to induced electrostatic polarization of the C-H bond to facilitate the accelerated reaction rate at the low reaction temperature. The distinct metal-support interaction can stabilize the intermediate and prevent the overoxidation of the reaction products. The present review accounts for recent progress in the field of SACs for the selective oxidation of CH4 to C1-2 oxygenates. The chemical nature of catalytic sites, effects of metal-support interaction, and stabilization of intermediate species on catalysts to minimize overoxidation are thoroughly discussed with a forward-looking perspective to improve the catalytic performance.
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Affiliation(s)
- Pawan Kumar
- Department of Chemical and Petroleum Engineering, University of Calgary, 2500 University Drive NW, Calgary, Alberta T2N 1N4, Canada
| | - Tareq A Al-Attas
- Department of Chemical and Petroleum Engineering, University of Calgary, 2500 University Drive NW, Calgary, Alberta T2N 1N4, Canada
| | - Jinguang Hu
- Department of Chemical and Petroleum Engineering, University of Calgary, 2500 University Drive NW, Calgary, Alberta T2N 1N4, Canada
| | - Md Golam Kibria
- Department of Chemical and Petroleum Engineering, University of Calgary, 2500 University Drive NW, Calgary, Alberta T2N 1N4, Canada
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10
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Large AI, Bennett RA, Eralp-Erden T, Held G. In situ surface analysis of palladium-platinum alloys in methane oxidation conditions. Faraday Discuss 2022; 236:157-177. [PMID: 35485640 DOI: 10.1039/d1fd00113b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Palladium and palladium-platinum foils were analysed using temperature-programmed near-ambient pressure X-ray photoelectron spectroscopy (TP-NAP-XPS) under methane oxidation conditions. Oxidation of palladium is inhibited by the presence of water, and in oxygen-poor environments. Pt addition further inhibits oxidation of palladium across all reaction conditions, preserving metallic palladium to higher temperatures. Bimetallic foils underwent significant restructuring under reaction conditions, with platinum preferentially migrating to the bulk under select conditions.
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Affiliation(s)
| | | | | | - Georg Held
- Diamond Light Source, Harwell Campus, Didcot, UK.
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11
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Mortensen RL, Noack HD, Pedersen K, Mossin S, Mielby J. Recent advances in complete methane oxidation using zeolite‐supported metal nanoparticle catalysts. ChemCatChem 2022. [DOI: 10.1002/cctc.202101924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Rasmus Lykke Mortensen
- Technical University of Denmark: Danmarks Tekniske Universitet DTU Chemistry Kemitorvet 207 DK-2800 Kgs. Lyngby DENMARK
| | - Hendrik-David Noack
- Umicore Denmark ApS Stationary Catalysts Kogle Allé 1 DK-2970 Hørsholm DENMARK
| | - Kim Pedersen
- Umicore Denmark ApS Stationary Catalysts Kogle Allé 1 DK-2970 Hørsholm DENMARK
| | - Susanne Mossin
- Technical University of Denmark: Danmarks Tekniske Universitet DTU Chemistry DK-2800 Kgs. Lyngby DENMARK
| | - Jerrik Mielby
- Technical University of Denmark DTU Chemistry Kemitorvet 207 DK-2800 Kgs. Lyngby DENMARK
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12
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Zhang X, Liu Y, Deng J, Jing L, Wu L, Dai H. Catalytic performance and SO2 resistance of zirconia-supported platinum-palladium bimetallic nanoparticles for methane combustion. Catal Today 2022. [DOI: 10.1016/j.cattod.2022.03.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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13
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Dietze EM, Chen L, Grönbeck H. Surface steps dominate the water formation on Pd(111) surfaces. J Chem Phys 2022; 156:064701. [DOI: 10.1063/5.0078918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- Elisabeth M. Dietze
- Department of Physics and Competence Centre for Catalysis, Chalmers University of Technology, Göteborg, Sweden
| | - Lin Chen
- Department of Physics and Competence Centre for Catalysis, Chalmers University of Technology, Göteborg, Sweden
| | - Henrik Grönbeck
- Department of Physics and Competence Centre for Catalysis, Chalmers University of Technology, Göteborg, Sweden
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14
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Numerical Simulation Analysis of Heating Effect of Downhole Methane Catalytic Combustion Heater under High Pressure. ENERGIES 2022. [DOI: 10.3390/en15031186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The hot exhaust gas generated by a downhole combustion heater directly heats the formation, which can avoid the heat loss caused by the injection of high-temperature fluid on the ground. However, if the temperature of the exhaust gas is too high, it may lead to the carbonization of organic matter in the formation, which is not conducive to oil production. This paper proposes the use of low-temperature catalytic combustion of a mixture of methane and air to produce a suitable exhaust gas temperature. The simulation studies the influence of different parameters on the catalytic combustion characteristics of methane and the influence of downhole high-pressure conditions. The results show that under high-pressure conditions, using a smaller concentration of methane (4%) for catalytic combustion can obtain a higher conversion efficiency (88.75%), and the exhaust temperature is 1097 K. It is found that the high-pressure conditions in the well can promote the catalytic combustion process of the heater, which proves the feasibility of the downhole combustion heater for in situ heating of unconventional oil and gas reservoirs.
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15
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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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16
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Fertal DR, Monai M, Proaño L, Bukhovko MP, Park J, Ding Y, Weckhuysen BM, Banerjee AC. Calcination temperature effects on Pd/alumina catalysts: Particle size, surface species and activity in methane combustion. Catal Today 2021. [DOI: 10.1016/j.cattod.2021.08.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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17
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Chen J, Giewont K, Walker EA, Lee J, Niu Y, Kyriakidou EA. Cobalt-Induced PdO Formation in Low-Loading Pd/BEA Catalysts for CH 4 Oxidation. ACS Catal 2021. [DOI: 10.1021/acscatal.1c00400] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Junjie Chen
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Buffalo, New York 14260, United States
| | - Kevin Giewont
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Buffalo, New York 14260, United States
| | - Eric A. Walker
- Institute for Computational and Data Sciences, University at Buffalo, The State University of New York, Buffalo, New York 14260, United States
| | - Jungkuk Lee
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Buffalo, New York 14260, United States
| | - Yubiao Niu
- College of Engineering, Swansea University, Bay Campus, Swansea SA1 8EN, U.K
| | - Eleni A. Kyriakidou
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Buffalo, New York 14260, United States
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18
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Methane combustion over palladium catalyst within the confined space of MFI zeolite. CHINESE JOURNAL OF CATALYSIS 2021. [DOI: 10.1016/s1872-2067(20)63775-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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19
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Yang W, Gong J, Wang X, Bao Z, Guo Y, Wu Z. A Review on the Impact of SO 2 on the Oxidation of NO, Hydrocarbons, and CO in Diesel Emission Control Catalysis. ACS Catal 2021. [DOI: 10.1021/acscatal.1c03013] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Weiwei Yang
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
- Key Laboratory of Pesticide and Chemical Biology of Ministry of Education, Institute of Environmental and Applied Chemistry, College of Chemistry, Central China Normal University, Wuhan 430079, China
| | - Jian Gong
- Corporate Research and Technology, Cummins Inc., 1900 McKinley Avenue, Columbus, Indiana 47201, United States
| | - Xiang Wang
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Zhenghong Bao
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Yanbing Guo
- Key Laboratory of Pesticide and Chemical Biology of Ministry of Education, Institute of Environmental and Applied Chemistry, College of Chemistry, Central China Normal University, Wuhan 430079, China
| | - Zili Wu
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
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20
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Khalid O, Spriewald Luciano A, Drazic G, Over H. Mixed Ru
x
Ir
1−
x
O
2
Supported on Rutile TiO
2
: Catalytic Methane Combustion, a Model Study. ChemCatChem 2021. [DOI: 10.1002/cctc.202100858] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Omeir Khalid
- Physikalisch-Chemisches Institut Justus Liebig University Heinrich-Buff-Ring 17 35392 Giessen Germany
- Zentrum für Materialforschung Justus Liebig University Heinrich-Buff-Ring 16 35392 Giessen Germany
| | - Alexander Spriewald Luciano
- Physikalisch-Chemisches Institut Justus Liebig University Heinrich-Buff-Ring 17 35392 Giessen Germany
- Zentrum für Materialforschung Justus Liebig University Heinrich-Buff-Ring 16 35392 Giessen Germany
| | - Goran Drazic
- Department of Materials Chemistry National Institute of Chemistry Hajdrihova 19 1000 Ljubljana Slovenia
| | - Herbert Over
- Physikalisch-Chemisches Institut Justus Liebig University Heinrich-Buff-Ring 17 35392 Giessen Germany
- Zentrum für Materialforschung Justus Liebig University Heinrich-Buff-Ring 16 35392 Giessen Germany
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21
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Catalytic Oxidation of Methane. Catalysts 2021. [DOI: 10.3390/catal11080944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Methane (the major component of natural gas) is one of the main energy sources for gas-powered turbines for power generation, and transport vehicles [...]
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22
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Datye AK, Votsmeier M. Opportunities and challenges in the development of advanced materials for emission control catalysts. NATURE MATERIALS 2021; 20:1049-1059. [PMID: 33020611 DOI: 10.1038/s41563-020-00805-3] [Citation(s) in RCA: 56] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Accepted: 08/18/2020] [Indexed: 06/11/2023]
Abstract
Advances in engine technologies are placing additional demands on emission control catalysts, which must now perform at lower temperatures, but at the same time be robust enough to survive harsh conditions encountered in engine exhaust. In this Review, we explore some of the materials concepts that could revolutionize the technology of emission control systems. These include single-atom catalysts, two-dimensional materials, three-dimensional architectures, core@shell nanoparticles derived via atomic layer deposition and via colloidal synthesis methods, and microporous oxides. While these materials provide enhanced performance, they will need to overcome many challenges before they can be deployed for treating exhaust from cars and trucks. We assess the state of the art for catalysing reactions related to emission control and also consider radical breakthroughs that could potentially completely transform this field.
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Affiliation(s)
- Abhaya K Datye
- Department of Chemical and Biological Engineering, University of New Mexico, Albuquerque, NM, USA.
| | - Martin Votsmeier
- Technical University of Darmstadt, Darmstadt, Germany.
- Umicore AG & Co. KG, Hanau, Germany.
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23
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Chen J, Buchanan T, Walker EA, Toops TJ, Li Z, Kunal P, Kyriakidou EA. Mechanistic Understanding of Methane Combustion over Ni/CeO 2: A Combined Experimental and Theoretical Approach. ACS Catal 2021. [DOI: 10.1021/acscatal.1c01088] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Junjie Chen
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Buffalo, New York 14260, United States
| | - Timothy Buchanan
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Buffalo, New York 14260, United States
| | - Eric A. Walker
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Buffalo, New York 14260, United States
- Institute for Computational and Data Sciences, University at Buffalo, The State University of New York, Buffalo, New York 14260, United States
| | - Todd J. Toops
- Energy and Transportation Sciences Divisions, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Zhenglong Li
- Manufacturing Science Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Pranaw Kunal
- Energy and Transportation Sciences Divisions, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Eleni A. Kyriakidou
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Buffalo, New York 14260, United States
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24
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Highly Dispersed Pd Species Supported on CeO2 Catalyst for Lean Methane Combustion: The Effect of the Occurrence State of Surface Pd Species on the Catalytic Activity. Catalysts 2021. [DOI: 10.3390/catal11070772] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
The correlation between the occurrence state of surface Pd species of Pd/CeO2 for lean CH4 combustion is investigated. Herein, by using a reduction-deposition method, we have synthesized a highly active 0.5% PdO/CeO2-RE catalyst, in which the Pd nanoparticles are evenly dispersed on the CeO2 nanorods CeO2-R. Based on comprehensive characterization, we have revealed that the uniformly dispersed Pd nanoparticles with a particle size distribution of 2.3 ± 0.6 nm are responsible for the generation of PdO and PdxCe1−xO2−δ phase with –Pd2+–O2−–Ce4+– linkage, which can easily provide oxygen vacancies and facilitate the transfer of reactive oxygen species between the CeO2-R and Pd species. As a consequence, the remarkable catalytic activity of 0.5% Pd/CeO2-RE is related to the high concentration of PdO species on the surface of the catalyst and the synergistic interaction between the Pd species and the CeO2 nanorod.
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25
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Preparation of Pd/SiO2 Catalysts by a Simple Dry Ball-Milling Method for Lean Methane Oxidation and Probe of the State of Active Pd Species. Catalysts 2021. [DOI: 10.3390/catal11060725] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
A series of Pd/SiO2 catalysts were prepared with different Pd precursors by a dry ball-milling method and used in the catalytic oxidation of lean methane at low temperature. The effect of Pd precursors on the catalytic performance was investigated and the state of the most active Pd species was probed. The results indicate that dry ball-milling is a simple but rather effective method to prepare the Pd/SiO2 catalysts for lean methane oxidation, and palladium acetylacetonate is an ideal precursor to obtain a highly active Pd/SiO2-Acac catalyst with well- and stably dispersed Pd species, owing to the tight contact between acetylacetonate and Si–OH on the SiO2 support. Besides the size and dispersion of Pd particles, the oxidation state of Pd species also plays a crucial role in determining the catalytic activity of Pd/SiO2 in lean methane oxidation at low temperature. A non-monotonic dependence of the catalytic activity on the Pd oxidation state is observed. The activity of various Pd species follows the order of PdOx >> Pd > PdO; the PdOx/SiO2-Acac catalysts (in particular for PdO0.82/SiO2-Acac when x = 0.82) exhibit much higher activity in lean methane oxidation at low temperature than Pd/SiO2-Acac and PdO/SiO2-Acac. The catalytic activity of PdOx/SiO2 may degrade during the methane oxidation due to the gradual transformation of PdOx to PdO in the oxygen-rich ambiance; however, such degradation is reversible and the activity of a degraded Pd/SiO2 catalyst can be recovered through a redox treatment to regain the PdOx species. This work helps to foster a better understanding of the relationship between the structure and performance of supported Pd catalysts by clarifying the state of active Pd species, which should be beneficial to the design of an active catalyst in lean methane oxidation at low temperature.
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26
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Yang E, Lee JG, Park ED, An K. Methane oxidation to formaldehyde over vanadium oxide supported on various mesoporous silicas. KOREAN J CHEM ENG 2021. [DOI: 10.1007/s11814-021-0758-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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27
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Jang EJ, Lee J, Oh DG, Kwak JH. CH 4 Oxidation Activity in Pd and Pt–Pd Bimetallic Catalysts: Correlation with Surface PdO x Quantified from the DRIFTS Study. ACS Catal 2021. [DOI: 10.1021/acscatal.1c00156] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Eun Jeong Jang
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Korea
| | - Jaekyoung Lee
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Korea
| | - Dong Gun Oh
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Korea
| | - Ja Hun Kwak
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Korea
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28
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29
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Pd encapsulated by hollow silica spheres for enhanced total oxidation of methane in the presence of water. CATAL COMMUN 2021. [DOI: 10.1016/j.catcom.2020.106185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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30
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Gong J, Pihl J, Wang D, Kim MY, Partridge WP, Li J, Cunningham M, Kamasamudram K, Currier N, Yezerets A. O2 dosage as a descriptor of TWC performance under lean/rich dithering in stoichiometric natural gas engines. Catal Today 2021. [DOI: 10.1016/j.cattod.2020.02.022] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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31
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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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32
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Shirman T, Toops TJ, Shirman E, Shneidman AV, Liu S, Gurkin K, Alvarenga J, Lewandowski MP, Aizenberg M, Aizenberg J. Raspberry colloid-templated approach for the synthesis of palladium-based oxidation catalysts with enhanced hydrothermal stability and low-temperature activity. Catal Today 2021. [DOI: 10.1016/j.cattod.2020.03.037] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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33
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Jiang D, Khivantsev K, Wang Y. Low-Temperature Methane Oxidation for Efficient Emission Control in Natural Gas Vehicles: Pd and Beyond. ACS Catal 2020. [DOI: 10.1021/acscatal.0c03338] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Dong Jiang
- The Gene and Linda Voiland School of Chemical Engineering and Bioengineering, Washington State University, Pullman, Washington 99164, United States
| | - Konstantin Khivantsev
- Institute for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Yong Wang
- The Gene and Linda Voiland School of Chemical Engineering and Bioengineering, Washington State University, Pullman, Washington 99164, United States
- Institute for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
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34
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Abstract
Density functional theory calculations of atomic and molecular adsorption on (111) and (100) metal surfaces reveal marked surface and structure dependent effects of strain. Adsorption in three-fold hollow sites is found to be destabilized by compressive strain whereas the reversed trend is commonly valid for adsorption in four-fold sites. The effects, which are qualitatively explained using a simple two-orbital model, provide insights on how to modify chemical properties by strain design.
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Affiliation(s)
- Elisabeth M. Dietze
- Department of Physics and Competence Centre for CatalysisChalmers University of Technology41296GöteborgSweden
| | - Henrik Grönbeck
- Department of Physics and Competence Centre for CatalysisChalmers University of Technology41296GöteborgSweden
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35
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Yang J, Peng M, Ren G, Qi H, Zhou X, Xu J, Deng F, Chen Z, Zhang J, Liu K, Pan X, Liu W, Su Y, Li W, Qiao B, Ma D, Zhang T. A Hydrothermally Stable Irreducible Oxide-Modified Pd/MgAl 2 O 4 Catalyst for Methane Combustion. Angew Chem Int Ed Engl 2020; 59:18522-18526. [PMID: 32656990 DOI: 10.1002/anie.202009050] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Indexed: 11/07/2022]
Abstract
Catalytic combustion is promising in removing trace amounts of CH4 to address serious environmental concerns. Supported Pd-based catalysts are most effective but often suffer from low stability in applications owing to the water-vapor-induced sintering. Herein, we develop a universal strategy to prepare irreducible-oxide-modified Pd/MgAl2 O4 catalysts which show high activity and excellent stability against both hydrothemal aging at elevated temperatures and deactivation in long-term reaction under wet conditions. The addition of irreducible oxides inhibited the deep oxidation of Pd in the oxygen-rich conditions, which preserved not only the epitaxial structure but also a suitable active phase of Pd-PdOx on MgAl2 O4 , thus promoting both activity and stability. This work provides new insights into the effect of metal-oxide interaction on CH4 combustion and offers an avenue to design hydrothermally stable and active combustion catalysts for industrial applications.
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Affiliation(s)
- Jingyi Yang
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Mi Peng
- National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering and BIC-ESAT, Peking University, Beijing, 100871, China
| | - Guoqing Ren
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Haifeng Qi
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xue Zhou
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, 430071, China
| | - Jun Xu
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, 430071, China
| | - Feng Deng
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, 430071, China
| | - Zhiqiang Chen
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Jingcai Zhang
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Kaipeng Liu
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiaoli Pan
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Wei Liu
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Yang Su
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Weizhen Li
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Botao Qiao
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China.,Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Ding Ma
- National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering and BIC-ESAT, Peking University, Beijing, 100871, China
| | - Tao Zhang
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
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36
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Wang T, Zhang C, Wang J, Li H, Duan Y, Liu Z, Lee JY, Hu X, Xi S, Du Y, Sun S, Liu X, Lee JM, Wang C, Xu ZJ. The interplay between the suprafacial and intrafacial mechanisms for complete methane oxidation on substituted LaCoO3 perovskite oxides. J Catal 2020. [DOI: 10.1016/j.jcat.2020.07.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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37
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He Y, Guo F, Yang KR, Heinlein JA, Bamonte SM, Fee JJ, Hu S, Suib SL, Haller GL, Batista VS, Pfefferle LD. In Situ Identification of Reaction Intermediates and Mechanistic Understandings of Methane Oxidation over Hematite: A Combined Experimental and Theoretical Study. J Am Chem Soc 2020; 142:17119-17130. [PMID: 32935987 DOI: 10.1021/jacs.0c07179] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yulian He
- Department of Chemical and Environmental Engineering, Yale University, New Haven, Connecticut 06520-8286, United States
- Energy Sciences Institute, Yale University, 810 West Campus Drive, West Haven, Connecticut 06516, United States
| | - Facheng Guo
- Energy Sciences Institute, Yale University, 810 West Campus Drive, West Haven, Connecticut 06516, United States
- Department of Chemistry, Yale University, New Haven, Connecticut 06520-8107, United States
| | - Ke R. Yang
- Energy Sciences Institute, Yale University, 810 West Campus Drive, West Haven, Connecticut 06516, United States
- Department of Chemistry, Yale University, New Haven, Connecticut 06520-8107, United States
| | - Jake A. Heinlein
- Department of Chemical and Environmental Engineering, Yale University, New Haven, Connecticut 06520-8286, United States
- Energy Sciences Institute, Yale University, 810 West Campus Drive, West Haven, Connecticut 06516, United States
| | - Scott M. Bamonte
- Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269-3060, United States
| | - Jared J. Fee
- Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269-3060, United States
| | - Shu Hu
- Department of Chemical and Environmental Engineering, Yale University, New Haven, Connecticut 06520-8286, United States
- Energy Sciences Institute, Yale University, 810 West Campus Drive, West Haven, Connecticut 06516, United States
| | - Steven L. Suib
- Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269-3060, United States
| | - Gary L. Haller
- Department of Chemical and Environmental Engineering, Yale University, New Haven, Connecticut 06520-8286, United States
| | - Victor S. Batista
- Energy Sciences Institute, Yale University, 810 West Campus Drive, West Haven, Connecticut 06516, United States
- Department of Chemistry, Yale University, New Haven, Connecticut 06520-8107, United States
| | - Lisa D. Pfefferle
- Department of Chemical and Environmental Engineering, Yale University, New Haven, Connecticut 06520-8286, United States
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38
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Vargheese V, Kobayashi Y, Oyama ST. The Direct Partial Oxidation of Methane to Dimethyl Ether over Pt/Y
2
O
3
Catalysts Using an NO/O
2
Shuttle. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202006020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Vibin Vargheese
- Department of Chemical System Engineering The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-8656 Japan
| | - Yasukazu Kobayashi
- Interdisciplinary Research Center for Catalytic Chemistry National Institute of Advanced Industrial Science and Technology (AIST) Central 5, Higashi 1-1-1 Tsukuba Ibaraki 305-8565 Japan
| | - S. Ted Oyama
- School of Chemical Engineering Fuzhou University Fuzhou 350116 China
- Department of Chemical Engineering Virginia Tech Blacksburg VA 24061 USA
- Department of Chemical System Engineering The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-8656 Japan
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39
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Vargheese V, Kobayashi Y, Oyama ST. The Direct Partial Oxidation of Methane to Dimethyl Ether over Pt/Y 2 O 3 Catalysts Using an NO/O 2 Shuttle. Angew Chem Int Ed Engl 2020; 59:16644-16650. [PMID: 32542891 DOI: 10.1002/anie.202006020] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 05/21/2020] [Indexed: 11/07/2022]
Abstract
Using a mixture of NO + O2 as the oxidant enabled the direct selective oxidation of methane to dimethyl ether (DME) over Pt/Y2 O3 . The reaction was carried out in a fixed bed reactor at 0.1 MPa over a temperature range of 275-375 °C. During the activity tests, the only carbon-containing products were DME and CO2 . The DME productivity (μmol gcat -1 h-1 ) was comparable to oxygenate productivities reported in the literature for strong oxidants (N2 O, H2 O2 , O3 ). The NO + O2 mixture formed NO2 , which acted as the oxygen atom carrier for the ultimate oxidant O2 . During the methane partial oxidation reaction, NO and NO2 were not reduced to N2 . In situ FTIR showed the formation of surface nitrate species, which are considered to be key intermediate species for the selective oxidation.
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Affiliation(s)
- Vibin Vargheese
- Department of Chemical System Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
| | - Yasukazu Kobayashi
- Interdisciplinary Research Center for Catalytic Chemistry, National Institute of Advanced Industrial Science and Technology (AIST), Central 5, Higashi 1-1-1, Tsukuba, Ibaraki, 305-8565, Japan
| | - S Ted Oyama
- School of Chemical Engineering, Fuzhou University, Fuzhou, 350116, China
- Department of Chemical Engineering, Virginia Tech, Blacksburg, VA, 24061, USA
- Department of Chemical System Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
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40
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Ding Y, Wang S, Zhang L, Lv L, Gao Y, Wang S. Effect of niobium on the activity of Pd/xNb/Ce0.5Zr0.5O2 catalyst for CH4 combustion. CATAL COMMUN 2020. [DOI: 10.1016/j.catcom.2020.106084] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
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41
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Particle Size and PdO–Support Interactions in PdO/CeO2-γ Al2O3 Catalysts and Effect on Methane Combustion. Catalysts 2020. [DOI: 10.3390/catal10090976] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
In this study, we investigated the effects of sequential impregnation in two PdO/CeO2/Al2O3 nanocatalysts (4Pd-20CeO2/Al2O3 and 20CeO2-4Pd/Al2O₃) on catalytic properties, particle sizes, and metal oxide–support interactions. Pulse chemisorption indicated significantly higher dispersion and smaller particle size in the 20CeO2-4Pd/Al2O₃ catalyst. STEM images of the 4Pd-20CeO2/Al2O₃ catalyst showed PdO nanoparticles on the surface of crystalline Al2O₃. In the 20CeO2-4Pd/Al2O3 catalyst, PdO nanoparticles were strongly embedded on ceria indicating PdO-ceria interactions. Both supports were on separate sites in the two catalysts suggesting weak interactions. PdO particle sizes were 6–12 nm in the 4Pd-20CeO2/Al2O₃ catalyst and 4–8 nm in the 20CeO2-4Pd/Al2O₃ catalyst. Methane conversion was 100% at 275 °C after a 20-min run with the 4Pd-20CeO2/Al2O3 catalyst compared to 25% conversion by the 20CeO2-4Pd/Al2O₃ catalyst under same conditions. The support alumina could stabilize the PdO species and facilitated oxygen migration on the surface and from the bulk in the 4Pd-20CeO2/Al2O3 catalyst. The lower activities in the 20CeO2-4Pd/Al2O₃ catalyst could be due to inaccessibility of PdO active sites at low temperature due to embedment of PdO nanoparticles on ceria. We could infer from our data that sequence of impregnation in catalyst synthesis could significantly influence catalytic properties and methane combustion due to PdO–support interactions.
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Müller S, Zimina A, Steininger R, Flessau S, Osswald J, Grunwaldt JD. High Stability of Rh Oxide-Based Thermoresistive Catalytic Combustion Sensors Proven by Operando X-ray Absorption Spectroscopy and X-ray Diffraction. ACS Sens 2020; 5:2486-2496. [PMID: 32627540 DOI: 10.1021/acssensors.0c00712] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Thermoresistive catalytic combustion sensors based on noble metals are very stable stable and highly sensitive devices to monitor potentially explosive atmospheres. We studied and proved the high stability of rhodium oxide-based sensors under working conditions in different CH4/air mixtures (up to 3.5 vol % methane) with the help of operando X-ray-based characterization techniques, DC resistance measurements, and IR thermography using a specially designed in situ cell. Operando X-ray diffraction and X-ray absorption spectroscopy showed that the active Rh species are in the oxidized state and their chemical state is preserved during operation under realistic conditions. The resistance correlated with the surface temperature of the pellistor and is related to the combustion of CH4, confirming the catalytic nature of the observed sensing process. Only under harsh operation conditions such as an oxygen-free atmosphere or enhanced working current, a reduction in the active Rh2O3 phase was observed. Finally, the effect of poisoning causing the lowered activity on the catalytic combustion of methane was investigated. While stable rhodium sulfate might form in a sulfur-poisoned pellistor, silicon dioxide seems to additionally physically block the pores in the alumina ceramics of the pellistor poisoned by hexamethyldisiloxane.
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Affiliation(s)
- Sabrina Müller
- Institute for Chemical Technology and Polymer Chemistry, Karlsruhe Institute of Technology, Karlsruhe 76131, Germany
| | - Anna Zimina
- Institute for Chemical Technology and Polymer Chemistry, Karlsruhe Institute of Technology, Karlsruhe 76131, Germany
- Institute of Catalysis Research and Technology, Karlsruhe Institute of Technology, Eggenstein-Leopoldshafen 76344, Germany
| | - Ralph Steininger
- Institute for Photon Science, Karlsruhe Institute of Technology, Eggenstein-Leopoldshafen 76344, Germany
| | | | | | - Jan-Dierk Grunwaldt
- Institute for Chemical Technology and Polymer Chemistry, Karlsruhe Institute of Technology, Karlsruhe 76131, Germany
- Institute of Catalysis Research and Technology, Karlsruhe Institute of Technology, Eggenstein-Leopoldshafen 76344, Germany
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43
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Yang J, Peng M, Ren G, Qi H, Zhou X, Xu J, Deng F, Chen Z, Zhang J, Liu K, Pan X, Liu W, Su Y, Li W, Qiao B, Ma D, Zhang T. A Hydrothermally Stable Irreducible Oxide‐Modified Pd/MgAl
2
O
4
Catalyst for Methane Combustion. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202009050] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Jingyi Yang
- CAS Key Laboratory of Science and Technology on Applied Catalysis Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Mi Peng
- National Laboratory for Molecular Sciences College of Chemistry and Molecular Engineering and BIC-ESAT Peking University Beijing 100871 China
| | - Guoqing Ren
- CAS Key Laboratory of Science and Technology on Applied Catalysis Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 China
| | - Haifeng Qi
- CAS Key Laboratory of Science and Technology on Applied Catalysis Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Xue Zhou
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics Innovation Academy for Precision Measurement Science and Technology Chinese Academy of Sciences Wuhan 430071 China
| | - Jun Xu
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics Innovation Academy for Precision Measurement Science and Technology Chinese Academy of Sciences Wuhan 430071 China
| | - Feng Deng
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics Innovation Academy for Precision Measurement Science and Technology Chinese Academy of Sciences Wuhan 430071 China
| | - Zhiqiang Chen
- CAS Key Laboratory of Science and Technology on Applied Catalysis Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 China
| | - Jingcai Zhang
- CAS Key Laboratory of Science and Technology on Applied Catalysis Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 China
| | - Kaipeng Liu
- CAS Key Laboratory of Science and Technology on Applied Catalysis Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Xiaoli Pan
- CAS Key Laboratory of Science and Technology on Applied Catalysis Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 China
| | - Wei Liu
- Dalian National Laboratory for Clean Energy Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 China
| | - Yang Su
- CAS Key Laboratory of Science and Technology on Applied Catalysis Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 China
| | - Weizhen Li
- CAS Key Laboratory of Science and Technology on Applied Catalysis Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 China
| | - Botao Qiao
- CAS Key Laboratory of Science and Technology on Applied Catalysis Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 China
- Dalian National Laboratory for Clean Energy Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 China
| | - Ding Ma
- National Laboratory for Molecular Sciences College of Chemistry and Molecular Engineering and BIC-ESAT Peking University Beijing 100871 China
| | - Tao Zhang
- CAS Key Laboratory of Science and Technology on Applied Catalysis Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 China
- University of Chinese Academy of Sciences Beijing 100049 China
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44
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Huang W, Zhang X, Yang AC, Goodman ED, Kao KC, Cargnello M. Enhanced Catalytic Activity for Methane Combustion through in Situ Water Sorption. ACS Catal 2020. [DOI: 10.1021/acscatal.0c02087] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Weixin Huang
- Department of Chemical Engineering and SUNCAT Center for Interface Science and Catalysis, Stanford University, Stanford, California 94305, United States
| | - Xinrui Zhang
- Department of Materials Science and Engineering, Stanford University, Stanford, California 94305, United States
| | - An-Chih Yang
- Department of Chemical Engineering and SUNCAT Center for Interface Science and Catalysis, Stanford University, Stanford, California 94305, United States
| | - Emmett D. Goodman
- Department of Chemical Engineering and SUNCAT Center for Interface Science and Catalysis, Stanford University, Stanford, California 94305, United States
| | - Kun-Che Kao
- Department of Chemical Engineering and SUNCAT Center for Interface Science and Catalysis, Stanford University, Stanford, California 94305, United States
| | - Matteo Cargnello
- Department of Chemical Engineering and SUNCAT Center for Interface Science and Catalysis, Stanford University, Stanford, California 94305, United States
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45
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Structure-activity relationship in Pd/CeO2 methane oxidation catalysts. CHINESE JOURNAL OF CATALYSIS 2020. [DOI: 10.1016/s1872-2067(19)63510-2] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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46
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Du J, Li H, Wang C, Zhang A, Zhao Y, Luo Y. Improved catalytic activity over P-doped ceria-zirconia-alumina supported palladium catalysts for methane oxidation. CATAL COMMUN 2020. [DOI: 10.1016/j.catcom.2020.106012] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
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47
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Chen J, Zhang G, Wu Y, Hu W, Qu P, Wang Y, Zhong L, Chen Y. Pd Supported on Alumina Using CePO 4 as an Additive: Phosphorus-Resistant Catalyst for Emission Control in Vehicles Fueled by Natural Gas. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.9b06997] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jianjun Chen
- Institute of New Energy and Low-Carbon Technology, Sichuan University, Chengdu 610064, P. R. China
| | - Guochen Zhang
- College of Chemical Engineering, Sichuan University, Chengdu 610064, P. R. China
| | - Yang Wu
- Institute of New Energy and Low-Carbon Technology, Sichuan University, Chengdu 610064, P. R. China
| | - Wei Hu
- Institute of Atmospheric Environment, Chongqing Academy of Environmental Science, Chongqing 401147, P. R. China
| | - Pengfei Qu
- College of Chemical Engineering, Sichuan University, Chengdu 610064, P. R. China
| | - Yun Wang
- Sinocat Environmental Technology Company, Ltd., Chengdu 610064, P. R. China
| | - Lin Zhong
- College of Chemical Engineering, Sichuan University, Chengdu 610064, P. R. China
| | - Yaoqiang Chen
- Institute of New Energy and Low-Carbon Technology, Sichuan University, Chengdu 610064, P. R. China
- College of Chemical Engineering, Sichuan University, Chengdu 610064, P. R. China
- College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
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48
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A High-Throughput Screening Approach to Identify New Active and Long-Term Stable Catalysts for Total Oxidation of Methane from Gas-Fueled Lean–Burn Engines. Catalysts 2020. [DOI: 10.3390/catal10020159] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
A unique high-throughput approach to identify new catalysts for total oxidation of methane from the exhaust gas of biogas-operated lean-burn engines is presented. The approach consists of three steps: (1) A primary screening using emission-corrected Infrared Thermography (ecIRT). (2) Validation in a conventional plug flow gas phase reactor using a model exhaust gas containing CH4, O2, CO, CO2, NO, NO2, N2O, SO2, H2O. (3) Ageing tests using a simplified exhaust gas (CH4, O2, CO2, SO2, H2O). To demonstrate the efficiency of this approach, one selected dataset with a sol-gel-based catalysts is presented. Compositions are 3 at.% precious metals (Pt, Rh) combined with different amounts of Al, Mn, and Ce in the form of mixed oxides. To find new promising materials for the abatement of methane, about two thousand different compositions were synthesized and ranked using ecIRT, and several hundred were characterized using a plug flow reactor and their ageing behaviour was determined.
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49
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Huang C, Shan W, Lian Z, Zhang Y, He H. Recent advances in three-way catalysts of natural gas vehicles. Catal Sci Technol 2020. [DOI: 10.1039/d0cy01320j] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This review presents recent advances in TWCs for NGVs, particularly for Pd-based catalysts and potential alternatives.
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Affiliation(s)
- Cenyan Huang
- Center for Excellence in Regional Atmospheric Environment and Key Laboratory of Urban Pollutant Conversion
- Institute of Urban Environment
- Institute of Urban Environment
- Chinese Academy of Sciences
- Xiamen 361021
| | - Wenpo Shan
- Center for Excellence in Regional Atmospheric Environment and Key Laboratory of Urban Pollutant Conversion
- Institute of Urban Environment
- Institute of Urban Environment
- Chinese Academy of Sciences
- Xiamen 361021
| | - Zhihua Lian
- Center for Excellence in Regional Atmospheric Environment and Key Laboratory of Urban Pollutant Conversion
- Institute of Urban Environment
- Institute of Urban Environment
- Chinese Academy of Sciences
- Xiamen 361021
| | - Yan Zhang
- Center for Excellence in Regional Atmospheric Environment and Key Laboratory of Urban Pollutant Conversion
- Institute of Urban Environment
- Institute of Urban Environment
- Chinese Academy of Sciences
- Xiamen 361021
| | - Hong He
- Center for Excellence in Regional Atmospheric Environment and Key Laboratory of Urban Pollutant Conversion
- Institute of Urban Environment
- Institute of Urban Environment
- Chinese Academy of Sciences
- Xiamen 361021
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50
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Du J, Zhao D, Wang C, Zhao Y, Li H, Luo Y. Size effects of Pd nanoparticles supported over CeZrPAl for methane oxidation. Catal Sci Technol 2020. [DOI: 10.1039/d0cy01714k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Pd nanoparticles accompanied with distorted morphology result in considerable active sites and enhance the intrinsic activity for catalytic methane oxidation.
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Affiliation(s)
- Junchen Du
- Faculty of Environmental Science and Engineering
- Kunming University of Science and Technology
- Kunming 650500
- China
- State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals
| | - Depeng Zhao
- State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals
- Kunming Institute of Precious Metals
- Kunming 650106
- China
| | - Chengxiong Wang
- State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals
- Kunming Institute of Precious Metals
- Kunming 650106
- China
| | - Yunkun Zhao
- State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals
- Kunming Institute of Precious Metals
- Kunming 650106
- China
| | - Hong Li
- State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals
- Kunming Institute of Precious Metals
- Kunming 650106
- China
| | - Yongming Luo
- Faculty of Environmental Science and Engineering
- Kunming University of Science and Technology
- Kunming 650500
- China
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