1
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Leung KM, Tsui CKJ, Ho CK, Liao CZ, Yau HT, Chan KY, Li CYV. UiO66-Derived Catalyst for Low Temperature Catalytic Reduction of NO with NH 3. ACS OMEGA 2023; 8:12362-12371. [PMID: 37033813 PMCID: PMC10077550 DOI: 10.1021/acsomega.2c07110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Accepted: 01/30/2023] [Indexed: 06/19/2023]
Abstract
Diesel exhaust emissions are major outdoor air pollutants. Reducing the emission of NOx by diesel commercial vehicles and related machineries is at present a great challenge. In this study, we synthesize a catalyst for low-temperature catalytic reduction of NO using calcinated UiO-66(Zr) as a host for the doping of cerium, manganese, and titanium by the incipient wetness impregnation, followed by the dispersion of 1.0 wt % platinum. A solid solution of Ce0.15Zr0.54Mn0.11Ti0.20O2/1.0Pt (CZMTO/Pt) is synthesized as evident by the structural characterizations. The catalyst demonstrates significant NO reduction in the laboratory due to the synergistic effect of various elements, with NO conversion above 80% at 160 °C.
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Affiliation(s)
- Ka-Ming Leung
- Department
of Chemistry, The University of Hong Kong, Pokfulam, Hong
Kong
| | - Chi-Kin J. Tsui
- Department
of Chemistry, The University of Hong Kong, Pokfulam, Hong
Kong
| | - Ching-Kit Ho
- Department
of Chemistry, The University of Hong Kong, Pokfulam, Hong
Kong
| | - Chang-Zhong Liao
- Department
of Chemistry, The University of Hong Kong, Pokfulam, Hong
Kong
- State
Key Laboratory of Featured Metal Materials and Life-cycle Safety for
composite Structures, School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China
| | - Hei-Tung Yau
- Department
of Chemistry, The University of Hong Kong, Pokfulam, Hong
Kong
| | - Kwong-Yu Chan
- Department
of Chemistry, The University of Hong Kong, Pokfulam, Hong
Kong
| | - Chi-Ying V. Li
- Department
of Chemistry, The University of Hong Kong, Pokfulam, Hong
Kong
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2
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Legutko P, Stelmachowski P, Yu X, Zhao Z, Sojka Z, Kotarba A. Catalytic Soot Combustion─General Concepts and Alkali Promotion. ACS Catal 2023. [DOI: 10.1021/acscatal.2c05994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Affiliation(s)
- Piotr Legutko
- Faculty of Chemistry, Jagiellonian University, ul. Gronostajowa 2, 30-387 Krakow, Poland
| | - Paweł Stelmachowski
- Faculty of Chemistry, Jagiellonian University, ul. Gronostajowa 2, 30-387 Krakow, Poland
| | - Xuehua Yu
- Institute of Catalysis for Energy and Environment, College of Chemistry and Chemical Engineering, Shenyang Normal University, Shenyang, Liaoning 110034, China
| | - Zhen Zhao
- Institute of Catalysis for Energy and Environment, College of Chemistry and Chemical Engineering, Shenyang Normal University, Shenyang, Liaoning 110034, China
| | - Zbigniew Sojka
- Faculty of Chemistry, Jagiellonian University, ul. Gronostajowa 2, 30-387 Krakow, Poland
| | - Andrzej Kotarba
- Faculty of Chemistry, Jagiellonian University, ul. Gronostajowa 2, 30-387 Krakow, Poland
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3
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Xu Z, Li Y, Lin Y, Wang B, Gao P, Zhu T. Enhanced activity and sulfur resistance of Cu- and Fe-modified activated carbon for the reduction of NO by CO from regeneration gas. Catal Sci Technol 2022. [DOI: 10.1039/d1cy01951a] [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
The reduction of NO by CO was proposed to be applied for regeneration gas to remove NOx from industrial flue gas with activated carbon purification technology.
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Affiliation(s)
- Zhicheng Xu
- CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Innovation Academy for Green Manufacture, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yuran Li
- CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Innovation Academy for Green Manufacture, Chinese Academy of Sciences, Beijing 100190, China
| | - Yuting Lin
- CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Innovation Academy for Green Manufacture, Chinese Academy of Sciences, Beijing 100190, China
| | - Bin Wang
- CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Innovation Academy for Green Manufacture, Chinese Academy of Sciences, Beijing 100190, China
| | - Panting Gao
- State Key Laboratory of Clean and Efficient Coal Utilization, Taiyuan University of Technology, Taiyuan 030024, China
| | - Tingyu Zhu
- CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Innovation Academy for Green Manufacture, Chinese Academy of Sciences, Beijing 100190, China
- Center for Excellence in Regional Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
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4
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Li L, Zhang C, Chen F, Xiang Y, Yan J, Chu W. Facile fabrication of hollow structured Cu-Ce binary oxides and their catalytic properties for toluene combustion. Catal Today 2021. [DOI: 10.1016/j.cattod.2020.05.038] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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5
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Facet-Dependent Reactivity of Ceria Nanoparticles Exemplified by CeO2-Based Transition Metal Catalysts: A Critical Review. Catalysts 2021. [DOI: 10.3390/catal11040452] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
The rational design and fabrication of highly-active and cost-efficient catalytic materials constitutes the main research pillar in catalysis field. In this context, the fine-tuning of size and shape at the nanometer scale can exert an intense impact not only on the inherent reactivity of catalyst’s counterparts but also on their interfacial interactions; it can also opening up new horizons for the development of highly active and robust materials. The present critical review, focusing mainly on our recent advances on the topic, aims to highlight the pivotal role of shape engineering in catalysis, exemplified by noble metal-free, CeO2-based transition metal catalysts (TMs/CeO2). The underlying mechanism of facet-dependent reactivity is initially discussed. The main implications of ceria nanoparticles’ shape engineering (rods, cubes, and polyhedra) in catalysis are next discussed, on the ground of some of the most pertinent heterogeneous reactions, such as CO2 hydrogenation, CO oxidation, and N2O decomposition. It is clearly revealed that shape functionalization can remarkably affect the intrinsic features and in turn the reactivity of ceria nanoparticles. More importantly, by combining ceria nanoparticles (CeO2 NPs) of specific architecture with various transition metals (e.g., Cu, Fe, Co, and Ni) remarkably active multifunctional composites can be obtained due mainly to the synergistic metalceria interactions. From the practical point of view, novel catalyst formulations with similar or even superior reactivity to that of noble metals can be obtained by co-adjusting the shape and composition of mixed oxides, such as Cu/ceria nanorods for CO oxidation and Ni/ceria nanorods for CO2 hydrogenation. The conclusions derived could provide the design principles of earth-abundant metal oxide catalysts for various real-life environmental and energy applications.
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6
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Sun K, Liu Z, Song S, Liu W, Wang P, Zhang T, Xue Y, Wang Y, Tan Y. Effect of Hydroxyl Groups on CuCoMg Nanosheets for Ethanol and Higher Alcohol Synthesis from Syngas. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.0c05204] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kai Sun
- School of Chemical and Biological Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, China
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China
| | - Zhenmin Liu
- School of Chemical and Biological Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, China
| | - Sufang Song
- School of Chemical and Biological Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, China
| | - Wen Liu
- School of Chemical and Biological Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, China
| | - Peng Wang
- School of Material and Chemical Engineering, Xuzhou Institute of Technology, Xuzhou, Jiangsu 221018, China
| | - Tao Zhang
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China
| | - Yongbing Xue
- School of Chemical and Biological Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, China
| | - Yuanyang Wang
- School of Chemical and Biological Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, China
| | - Yisheng Tan
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China
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7
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Lee KM, Kwon G, Hwang S, Boscoboinik JA, Kim T. Investigation of the NO reduction by CO reaction over oxidized and reduced NiO x/CeO 2 catalysts. Catal Sci Technol 2021. [DOI: 10.1039/d1cy01215k] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
NO reduction by CO reaction was investigated by NiOx/CeO2 catalysts with different pretreatment conditions. Surface area, oxygen defect sites, and CeO2 crystallite size are closely related to the catalytic performance.
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Affiliation(s)
- Kyung-Min Lee
- Materials Science and Chemical Engineering Department, Stony Brook University, Stony Brook, NY, 11794, USA
| | - Gihan Kwon
- National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, NY 11973, USA
| | - Sooyeon Hwang
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, NY 11973, USA
| | | | - Taejin Kim
- Materials Science and Chemical Engineering Department, Stony Brook University, Stony Brook, NY, 11794, USA
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8
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Shan Y, Liu Y, Li Y, Yang W. A review on application of cerium-based oxides in gaseous pollutant purification. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2020.117181] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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9
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Xu Z, Li Y, Lin Y, Zhu T. A review of the catalysts used in the reduction of NO by CO for gas purification. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:6723-6748. [PMID: 31939011 DOI: 10.1007/s11356-019-07469-w] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Accepted: 12/18/2019] [Indexed: 06/10/2023]
Abstract
The reduction of NO by the CO produced by incomplete combustion in the flue gas can remove CO and NO simultaneously and economically. However, there are some problems and challenges in the industrial application which limit the application of this process. In this work, noble metal catalysts and transition metal catalysts used in the reduction of NO by CO in recent years are systematically reviewed, emphasizing the research progress on Ir-based catalysts and Cu-based catalysts with prospective applications. The effects of catalyst support, additives, pretreatment methods, and physicochemical properties of catalysts on catalytic activity are summarized. In addition, the effects of atmosphere conditions on the catalytic activity are discussed. Several kinds of reaction mechanisms are proposed for noble metal catalysts and transition metal catalysts. Ir-based catalysts have an excellent activity for NO reduction by CO in the presence of O2. Cu-based bimetallic catalysts show better catalytic performance in the absence of O2, in that the adsorption and dissociation of NO can occur on both oxygen vacancies and metal sites. Finally, the potential problems existing in the application of the reduction of NO by CO in industrial flue gas are analyzed and some promising solutions are put forward through this review.
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Affiliation(s)
- Zhicheng Xu
- Beijing Engineering Research Center of Process Pollution Control, National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yuran Li
- Beijing Engineering Research Center of Process Pollution Control, National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China.
| | - Yuting Lin
- Beijing Engineering Research Center of Process Pollution Control, National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China
| | - Tingyu Zhu
- Beijing Engineering Research Center of Process Pollution Control, National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China.
- Center for Excellence in Regional Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China.
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10
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Recent Advances on the Rational Design of Non-Precious Metal Oxide Catalysts Exemplified by CuOx/CeO2 Binary System: Implications of Size, Shape and Electronic Effects on Intrinsic Reactivity and Metal-Support Interactions. Catalysts 2020. [DOI: 10.3390/catal10020160] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
Catalysis is an indispensable part of our society, massively involved in numerous energy and environmental applications. Although, noble metals (NMs)-based catalysts are routinely employed in catalysis, their limited resources and high cost hinder the widespread practical application. In this regard, the development of NMs-free metal oxides (MOs) with improved catalytic activity, selectivity and durability is currently one of the main research pillars in the area of heterogeneous catalysis. The present review, involving our recent efforts in the field, aims to provide the latest advances—mainly in the last 10 years—on the rational design of MOs, i.e., the general optimization framework followed to fine-tune non-precious metal oxide sites and their surrounding environment by means of appropriate synthetic and promotional/modification routes, exemplified by CuOx/CeO2 binary system. The fine-tuning of size, shape and electronic/chemical state (e.g., through advanced synthetic routes, special pretreatment protocols, alkali promotion, chemical/structural modification by reduced graphene oxide (rGO)) can exert a profound influence not only to the reactivity of metal sites in its own right, but also to metal-support interfacial activity, offering highly active and stable materials for real-life energy and environmental applications. The main implications of size-, shape- and electronic/chemical-adjustment on the catalytic performance of CuOx/CeO2 binary system during some of the most relevant applications in heterogeneous catalysis, such as CO oxidation, N2O decomposition, preferential oxidation of CO (CO-PROX), water gas shift reaction (WGSR), and CO2 hydrogenation to value-added products, are thoroughly discussed. It is clearly revealed that the rational design and tailoring of NMs-free metal oxides can lead to extremely active composites, with comparable or even superior reactivity than that of NMs-based catalysts. The obtained conclusions could provide rationales and design principles towards the development of cost-effective, highly active NMs-free MOs, paving also the way for the decrease of noble metals content in NMs-based catalysts.
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11
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Konsolakis M, Lykaki M, Stefa S, Carabineiro SAC, Varvoutis G, Papista E, Marnellos GE. CO 2 Hydrogenation over Nanoceria-Supported Transition Metal Catalysts: Role of Ceria Morphology (Nanorods versus Nanocubes) and Active Phase Nature (Co versus Cu). NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E1739. [PMID: 31817667 PMCID: PMC6955880 DOI: 10.3390/nano9121739] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 11/28/2019] [Accepted: 12/02/2019] [Indexed: 11/28/2022]
Abstract
In this work we report on the combined impact of active phase nature (M: Co or Cu) and ceria nanoparticles support morphology (nanorods (NR) or nanocubes (NC)) on the physicochemical characteristics and CO2 hydrogenation performance of M/CeO2 composites at atmospheric pressure. It was found that CO2 conversion followed the order: Co/CeO2 > Cu/CeO2 > CeO2, independently of the support morphology. Co/CeO2 catalysts demonstrated the highest CO2 conversion (92% at 450 °C), accompanied by 93% CH4 selectivity. On the other hand, Cu/CeO2 samples were very selective for CO production, exhibiting 52% CO2 conversion and 95% CO selectivity at 380 °C. The results obtained in a wide range of H2:CO2 ratios (1-9) and temperatures (200-500 °C) are reaching in both cases the corresponding thermodynamic equilibrium conversions, revealing the superiority of Co- and Cu-based samples in methanation and reverse water-gas shift (rWGS) reactions, respectively. Moreover, samples supported on ceria nanocubes exhibited higher specific activity (µmol CO2·m-2·s-1) compared to samples of rod-like shape, disclosing the significant role of support morphology, besides that of metal nature (Co or Cu). Results are interpreted on the basis of different textural and redox properties of as-prepared samples in conjunction to the different impact of metal entity (Co or Cu) on CO2 hydrogenation process.
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Affiliation(s)
- Michalis Konsolakis
- School of Production Engineering and Management, Technical University of Crete, GR-73100 Chania, Greece; (M.L.); (S.S.)
| | - Maria Lykaki
- School of Production Engineering and Management, Technical University of Crete, GR-73100 Chania, Greece; (M.L.); (S.S.)
| | - Sofia Stefa
- School of Production Engineering and Management, Technical University of Crete, GR-73100 Chania, Greece; (M.L.); (S.S.)
| | - Sόnia A. C. Carabineiro
- Laboratório de Catálise e Materiais (LCM), Laboratório Associado LSRE-LCM, Faculdade de Engenharia, Universidade do Porto, 4200-465 Porto, Portugal
| | - Georgios Varvoutis
- Department of Mechanical Engineering, University of Western Macedonia, GR-50100 Kozani, Greece; (G.V.); (E.P.); (G.E.M.)
- Chemical Process & Energy Resources Institute, Centre for Research & Technology Hellas, GR-57001 Thermi, Thessaloniki, Greece
| | - Eleni Papista
- Department of Mechanical Engineering, University of Western Macedonia, GR-50100 Kozani, Greece; (G.V.); (E.P.); (G.E.M.)
| | - Georgios E. Marnellos
- Department of Mechanical Engineering, University of Western Macedonia, GR-50100 Kozani, Greece; (G.V.); (E.P.); (G.E.M.)
- Chemical Process & Energy Resources Institute, Centre for Research & Technology Hellas, GR-57001 Thermi, Thessaloniki, Greece
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12
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Design and synthesis of spherical-platelike ternary copper-cobalt-manganese catalysts for direct conversion of syngas to ethanol and higher alcohols. J Catal 2019. [DOI: 10.1016/j.jcat.2019.08.013] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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13
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Xiong S, Chen J, Huang N, Yang S, Peng Y, Li J. Balance between Reducibility and N 2O Adsorption Capacity for the N 2O Decomposition: Cu xCo y Catalysts as an Example. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2019; 53:10379-10386. [PMID: 31380634 DOI: 10.1021/acs.est.9b02892] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
CuxCoy (CuO-Co3O4 mixed oxides) catalysts were prepared via co-precipitation for the N2O decomposition reaction. They exhibited a higher N2O decomposition activity than that of pure CuO and Co3O4 because of the balance of the redox property and N2O adsorption capacity. Co3O4 presented a large number of surface oxygen vacancies, increasing the N2O chemical adsorption as "□-Co-ON2" on the catalyst surface, whereas CuO was dispersed around Co3O4 and presented high reducibility on the interface of Co3O4-CuOx for the N-O break of N2O, healing oxygen vacancies by leaving one oxygen atom in the vacancy. Based on kinetic studies, the rate constant of N2O decomposition was related to the number of surface vacancy sites ([Mn+]) and the rate of N-O break (k3), whereas the rate-determining step is the N-O break. Therefore, the N2O decomposition rate is first order to the N2O concentration. Overall, both the density functional theory calculations and kinetic results indicate that the quantities of adsorption and activation sites derived from the interaction between Co and Cu (dual-function mechanism) were accounted for the excellent N2O decomposition performance of CuxCoy catalysts.
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Affiliation(s)
- Shangchao Xiong
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment , Tsinghua University , Beijing 100084 , PR China
- National Engineering Laboratory for Multi Flue Gas Pollution Control Technology and Equipment , Tsinghua University , Beijing 100084 , PR China
| | - Jianjun Chen
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment , Tsinghua University , Beijing 100084 , PR China
- National Engineering Laboratory for Multi Flue Gas Pollution Control Technology and Equipment , Tsinghua University , Beijing 100084 , PR China
| | - Nan Huang
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment , Tsinghua University , Beijing 100084 , PR China
- School of Environmental and Biological Engineering , Nanjing University of Science and Technology , Nanjing 210094 , PR China
| | - Shijian Yang
- School of Environment and Civil Engineering , Jiangnan University , Wuxi 214122 , PR China
| | - Yue Peng
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment , Tsinghua University , Beijing 100084 , PR China
- National Engineering Laboratory for Multi Flue Gas Pollution Control Technology and Equipment , Tsinghua University , Beijing 100084 , PR China
| | - Junhua Li
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment , Tsinghua University , Beijing 100084 , PR China
- National Engineering Laboratory for Multi Flue Gas Pollution Control Technology and Equipment , Tsinghua University , Beijing 100084 , PR China
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14
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A Novel Porous Ceramic Membrane Supported Monolithic Cu-Doped Mn–Ce Catalysts for Benzene Combustion. Catalysts 2019. [DOI: 10.3390/catal9080652] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Porous ceramic membranes (PCMs) are considered as an efficient hot gas filtration material in industrial systems. Functionalization of the PCMs with high-efficiency catalysts for the abatement of volatile organic compounds (VOCs) during dust elimination is a promising way to purify the industrial exhaust gases. In this work, we prepared PCMs (porosity: 70%) in a facile sintering process and integrated Cu-doped Mn–Ce oxides into the PCMs as monolithic catalysts by the sol–gel method for benzene oxidation. Through this method, the catalysts are dispersed evenly throughout the PCMs with excellent adhesion, and the catalytic PCMs provided more active sites for the reactant gases during the catalytic reaction process compared to the powder catalysts. The physicochemical properties of PCMs and catalytic PCMs were characterized systematically, and the catalytic activities were measured in total oxidation of benzene. As a result, all the prepared catalytic PCMs exhibited high catalytic activity for benzene oxidation. Significantly, the monolithic catalyst of Cu0.2Mn0.6Ce0.2/PCMs obtained the lowest temperature for benzene conversion efficiency of 90% (T90) at 212 °C with a high gaseous hourly space velocity of 5000 h−1 and showed strong resistance to high humidity (90 vol.%, 20 °C) with long-term stability in continuous benzene stream, which is caused by abundant active adsorbed oxygen, more surficial oxygen vacancy, and lower-temperature reducibility.
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15
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Wu M, Chen S, Soomro A, Ma S, Zhu M, Hua X, Xiang W. Investigation of synergistic effects and high performance of La-Co composite oxides for toluene catalytic oxidation at low temperature. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:12123-12135. [PMID: 30827023 DOI: 10.1007/s11356-019-04672-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Accepted: 02/21/2019] [Indexed: 06/09/2023]
Abstract
Cobalt oxides have been considered as a kind of highly efficient catalyst for the oxidation of volatile organic compounds (VOCs). In this work, lanthanum-cobalt composite oxides were prepared by using the co-precipitation method, and toluene was used as the model compound. Diversified techniques including XRD, SEM, Raman spectra, XPS, H2-TPR, and N2 adsorption-desorption were applied to investigate the physicochemical properties of as-prepared materials. The composite catalysts showed different morphology including larger specific surface area and higher pore volume which would accelerate the adsorption of toluene and improve the amount of active sites on surface. Moreover, the addition of lanthanum could enhance the low-temperature reducibility, and it could be also beneficial to expose more Co3+ and adsorbed oxygen species on the surface of catalysts which could accelerate the oxidation of toluene and lower onset oxidation temperature. 0.05La-Co (with a molar ratio of lanthanum against cobalt is 0.05) showed the best catalytic performance. The complete conversion of toluene was achieved at 225 °C under the condition of toluene concentration = 1000 ppm and SV = 20,000 ml·g-1·h-1. Stability test over 0.05La-Co was conducted at 225 °C and it could maintain the 100% conversion of toluene for 720 min, indicating the excellent stability of as-prepared catalysts. Undoubtedly, lanthanum-cobalt composite oxide is a kind of promising material for the catalytic oxidation of VOCs.
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Affiliation(s)
- Mudi Wu
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing, 210096, China
| | - Shiyi Chen
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing, 210096, China
| | - Ahsanullah Soomro
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing, 210096, China
| | - Shiwei Ma
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing, 210096, China
| | - Min Zhu
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing, 210096, China
| | - Xinguo Hua
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing, 210096, China
| | - Wenguo Xiang
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing, 210096, China.
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16
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Supported Mn catalysts and the role of different supports in the catalytic oxidation of carbon monoxide. Chem Eng Sci 2019. [DOI: 10.1016/j.ces.2018.12.006] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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17
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Deng L, Huang C, Kan J, Li B, Chen Y, Zhu S, Shen S. Effect of coating modification of cordierite carrier on catalytic performance of supported NiMnO 3 catalysts for VOCs combustion. J RARE EARTH 2018. [DOI: 10.1016/j.jre.2017.07.015] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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18
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Sun K, Gao X, Bai Y, Tan M, Yang G, Tan Y. Synergetic catalysis of bimetallic copper–cobalt nanosheets for direct synthesis of ethanol and higher alcohols from syngas. Catal Sci Technol 2018. [DOI: 10.1039/c8cy01074a] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The reaction scheme of CO hydrogenation to ethanol under the synergetic catalysis of uniformly dispersed bimetallic copper–cobalt nanosheets.
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Affiliation(s)
- Kai Sun
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry, Chinese Academy of Sciences
- Taiyuan 030001
- China
- University of Chinese Academy of Sciences
| | - Xiaofeng Gao
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry, Chinese Academy of Sciences
- Taiyuan 030001
- China
- University of Chinese Academy of Sciences
| | - Yunxing Bai
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry, Chinese Academy of Sciences
- Taiyuan 030001
- China
- University of Chinese Academy of Sciences
| | - Minghui Tan
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry, Chinese Academy of Sciences
- Taiyuan 030001
- China
| | - Guohui Yang
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry, Chinese Academy of Sciences
- Taiyuan 030001
- China
| | - Yisheng Tan
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry, Chinese Academy of Sciences
- Taiyuan 030001
- China
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19
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Tang C, Sun B, Sun J, Hong X, Deng Y, Gao F, Dong L. Solid state preparation of NiO-CeO 2 catalyst for NO reduction. Catal Today 2017. [DOI: 10.1016/j.cattod.2016.05.026] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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20
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Use of NiO/SiO2 catalysts for toluene total oxidation: Catalytic reaction at lower temperatures and repeated regeneration. CHINESE JOURNAL OF CATALYSIS 2016. [DOI: 10.1016/s1872-2067(16)62514-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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21
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Copper catalysts supported on ordered and disordered silica–carbon composites for NOX elimination. REACTION KINETICS MECHANISMS AND CATALYSIS 2016. [DOI: 10.1007/s11144-016-0996-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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22
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Park EJ, Lee JH, Kim KD, Kim DH, Jeong MG, Kim YD. Toluene oxidation catalyzed by NiO/SiO2 and NiO/TiO2/SiO2: Towards development of humidity-resistant catalysts. Catal Today 2016. [DOI: 10.1016/j.cattod.2015.03.038] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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23
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Chen J, Huang F, Hu W, Li G, Zhong L, Chen Y. Enhanced performance of a Pt-based three-way catalyst using a double-solvent method. RSC Adv 2016. [DOI: 10.1039/c6ra06285g] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
A new Pt-based three-way catalyst (TWC) for compressed natural gas (CNG) exhausts emissions was developed using a double-solvent method.
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Affiliation(s)
- Jianjun Chen
- College of Chemistry
- Sichuan University
- Chengdu
- P. R. of China
| | - Fujin Huang
- College of Chemical Engineering
- Sichuan University
- Chengdu
- P. R. of China
| | - Wei Hu
- College of Chemical Engineering
- Sichuan University
- Chengdu
- P. R. of China
| | - Guangxia Li
- College of Chemical Engineering
- Sichuan University
- Chengdu
- P. R. of China
| | - Lin Zhong
- College of Chemical Engineering
- Sichuan University
- Chengdu
- P. R. of China
| | - Yaoqiang Chen
- College of Chemistry
- Sichuan University
- Chengdu
- P. R. of China
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24
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Konsolakis M. Recent Advances on Nitrous Oxide (N2O) Decomposition over Non-Noble-Metal Oxide Catalysts: Catalytic Performance, Mechanistic Considerations, and Surface Chemistry Aspects. ACS Catal 2015. [DOI: 10.1021/acscatal.5b01605] [Citation(s) in RCA: 230] [Impact Index Per Article: 25.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Michalis Konsolakis
- School of Production Engineering
and Management, Technical University of Crete, GR−73100 Chania, Crete Greece
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25
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Sun C, Tang Y, Gao F, Sun J, Ma K, Tang C, Dong L. Effects of different manganese precursors as promoters on catalytic performance of CuO–MnOx/TiO2 catalysts for NO removal by CO. Phys Chem Chem Phys 2015; 17:15996-6006. [DOI: 10.1039/c5cp02158h] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Since the formation of the surface synergetic oxygen vacancy SSOV (Cu+–□–Mn3+) in the xCuyMn(N)/TiO2 catalyst is easier than that (Cu+–□–Mn2+) in the xCuyMn(A)/TiO2 catalyst, the activity of the xCuyMn(N)/TiO2 catalyst is higher than that of the xCuyMn(A)/TiO2 catalyst.
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Affiliation(s)
- Chuanzhi Sun
- College of Chemistry
- Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Key Laboratory of Molecular and Nano Probes
- Ministry of Education
| | - Yingjie Tang
- College of Chemistry
- Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Key Laboratory of Molecular and Nano Probes
- Ministry of Education
| | - Fei Gao
- Center of Modern Analysis
- Nanjing University
- Nanjing 210093
- P. R. China
| | - Jingfang Sun
- Center of Modern Analysis
- Nanjing University
- Nanjing 210093
- P. R. China
| | - Kaili Ma
- Key Laboratory of Mesoscopic Chemistry of Ministry of Education
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
- P. R. China
| | - Changjin Tang
- Key Laboratory of Mesoscopic Chemistry of Ministry of Education
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
- P. R. China
| | - Lin Dong
- Center of Modern Analysis
- Nanjing University
- Nanjing 210093
- P. R. China
- Key Laboratory of Mesoscopic Chemistry of Ministry of Education
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