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Othman A, Gowda A, Andreescu D, Hassan MH, Babu SV, Seo J, Andreescu S. Two decades of ceria nanoparticle research: structure, properties and emerging applications. MATERIALS HORIZONS 2024; 11:3213-3266. [PMID: 38717455 DOI: 10.1039/d4mh00055b] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/16/2024]
Abstract
Cerium oxide nanoparticles (CeNPs) are versatile materials with unique and unusual properties that vary depending on their surface chemistry, size, shape, coating, oxidation states, crystallinity, dopant, and structural and surface defects. This review encompasses advances made over the past twenty years in the development of CeNPs and ceria-based nanostructures, the structural determinants affecting their activity, and translation of these distinct features into applications. The two oxidation states of nanosized CeNPs (Ce3+/Ce4+) coexisting at the nanoscale level facilitate the formation of oxygen vacancies and defect states, which confer extremely high reactivity and oxygen buffering capacity and the ability to act as catalysts for oxidation and reduction reactions. However, the method of synthesis, surface functionalization, surface coating and defects are important factors in determining their properties. This review highlights key properties of CeNPs, their synthesis, interactions, and reaction pathways and provides examples of emerging applications. Due to their unique properties, CeNPs have become quintessential candidates for catalysis, chemical mechanical planarization (CMP), sensing, biomedical applications, and environmental remediation, with tremendous potential to create novel products and translational innovations in a wide range of industries. This review highlights the timely relevance and the transformative potential of these materials in addressing societal challenges and driving technological advancements across these fields.
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Affiliation(s)
- Ali Othman
- Department of Chemistry and Biomolecular Science, Clarkson University, Potsdam, New York 13699-5810, USA.
- Department of Chemical and Biomolecular Engineering, Clarkson University, Potsdam, New York 13699, USA.
| | - Akshay Gowda
- Department of Chemical and Biomolecular Engineering, Clarkson University, Potsdam, New York 13699, USA.
| | - Daniel Andreescu
- Department of Chemistry and Biomolecular Science, Clarkson University, Potsdam, New York 13699-5810, USA.
| | - Mohamed H Hassan
- Department of Chemistry and Biomolecular Science, Clarkson University, Potsdam, New York 13699-5810, USA.
| | - S V Babu
- Department of Chemical and Biomolecular Engineering, Clarkson University, Potsdam, New York 13699, USA.
| | - Jihoon Seo
- Department of Chemical and Biomolecular Engineering, Clarkson University, Potsdam, New York 13699, USA.
| | - Silvana Andreescu
- Department of Chemistry and Biomolecular Science, Clarkson University, Potsdam, New York 13699-5810, USA.
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2
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Tatar D, Ullah H, Yadav M, Kojčinović J, Šarić S, Szenti I, Skalar T, Finšgar M, Tian M, Kukovecz Á, Kónya Z, Sápi A, Djerdj I. High-Entropy Oxides: A New Frontier in Photocatalytic CO 2 Hydrogenation. ACS APPLIED MATERIALS & INTERFACES 2024; 16:29946-29962. [PMID: 38821886 DOI: 10.1021/acsami.4c00478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2024]
Abstract
Herein, we investigate the potential of nanostructured high-entropy oxides (HEOs) for photocatalytic CO2 hydrogenation, a process with significant implications for environmental sustainability and energy production. Several cerium-oxide-based rare-earth HEOs with fluorite structures were prepared for UV-light driven photocatalytic CO2 hydrogenation toward valuable fuels and petrochemical precursors. The cationic composition profoundly influences the selectivity and activity of the HEOs, where the Ce0.2Zr0.2La0.2Nd0.2Sm0.2O2-δ catalyst showed outstanding CO2 activation (14.4 molCO kgcat-1 h-1 and 1.27 mol CH 3 OH kgcat-1 h-1) and high methanol and CO selectivity (7.84% CH3OH and 89.26% CO) under ambient conditions with 4 times better performance in comparison to pristine CeO2. Systematic tests showed the effect of a high-entropy system compared to midentropy oxides. XPS, in situ DRIFTS, as well as DFT calculation elucidate the synergistic impact of Ce, Zr, La, Nd, and Sm, resulting in an optimal Ce3+/Ce4+ ratio. The observed formate-routed mechanism and a surface with high affinity to CO2 reduction offer insights into the photocatalytic enhancement. While our findings lay a solid foundation, further research is needed to optimize these catalysts and expand their applications.
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Affiliation(s)
- Dalibor Tatar
- Department of Chemistry, Josip Juraj Strossmayer University of Osijek, Cara Hadrijana 8/A, Osijek HR-31000, Croatia
| | - Habib Ullah
- Department of Engineering, Faculty of Environment, Science and Economy, University of Exeter, Penryn Campus, Cornwall TR10 9FE, United Kingdom
| | - Mohit Yadav
- Department of Applied and Environmental Chemistry, University of Szeged, Rerrich Béla Sq. 1, Szeged H-6720, Hungary
| | - Jelena Kojčinović
- Department of Chemistry, Josip Juraj Strossmayer University of Osijek, Cara Hadrijana 8/A, Osijek HR-31000, Croatia
| | - Stjepan Šarić
- Department of Chemistry, Josip Juraj Strossmayer University of Osijek, Cara Hadrijana 8/A, Osijek HR-31000, Croatia
| | - Imre Szenti
- Department of Applied and Environmental Chemistry, University of Szeged, Rerrich Béla Sq. 1, Szeged H-6720, Hungary
| | - Tina Skalar
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Večna pot 113, Ljubljana SI-1000, Slovenia
| | - Matjaž Finšgar
- Faculty of Chemistry and Chemical Engineering, University of Maribor, Smetanova Street 17, Maribor SI-2000, Slovenia
| | - Mi Tian
- Department of Engineering, Faculty of Environment, Science and Economy, University of Exeter, Penryn Campus, Cornwall TR10 9FE, United Kingdom
| | - Ákos Kukovecz
- Department of Applied and Environmental Chemistry, University of Szeged, Rerrich Béla Sq. 1, Szeged H-6720, Hungary
| | - Zoltán Kónya
- Department of Applied and Environmental Chemistry, University of Szeged, Rerrich Béla Sq. 1, Szeged H-6720, Hungary
| | - András Sápi
- Department of Applied and Environmental Chemistry, University of Szeged, Rerrich Béla Sq. 1, Szeged H-6720, Hungary
| | - Igor Djerdj
- Department of Chemistry, Josip Juraj Strossmayer University of Osijek, Cara Hadrijana 8/A, Osijek HR-31000, Croatia
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3
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Mauri S, Calligaro R, Pauletti CF, Camellone MF, Boaro M, Braglia L, Fabris S, Piccinin S, Torelli P, Trovarelli A. Low-Temperature Methane Activation Reaction Pathways over Mechanochemically-Generated Ce 4+/Cu + Interfacial Sites. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2403028. [PMID: 38860552 DOI: 10.1002/smll.202403028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Revised: 05/27/2024] [Indexed: 06/12/2024]
Abstract
Methane is a valuable resource and its valorization is an important challenge in heterogeneous catalysis. Here it is shown that CeO2/CuO composite prepared by ball milling activates methane at a temperature as low as 250 °C. In contrast to conventionally prepared catalysts, the formation of partial oxidation products such as methanol and formaldehyde is also observed. Through an in situ Diffuse Reflectance Infrared Fourier Transform Spectroscopy (DRIFTS) and operando Near Edge X-Ray Absorption Fine Structure Spectroscopy (NEXAFS) approach, it can be established that this unusual reactivity can be attributed to the presence of Ce4+/Cu+ interfaces generated through a redox exchange between Ce3+ and Cu2+ atoms facilitated by the mechanical energy supplied during milling. DFT modeling of the electronic properties confirms the existence of a charge transfer mechanism. These results demonstrate the effectiveness and distinctiveness of the mechanical approach in creating unique and resilient interfaces thereby enabling the optimization and refining of CeO2/CuO catalysts in methane activation reactions.
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Affiliation(s)
- Silvia Mauri
- TASC Laboratory, CNR- Istituto Officina dei Materiali, Trieste, 34149, Italy
| | - Rudy Calligaro
- Dipartimento Politecnico and INSTM, Università degli Studi di Udine, Via del Cotonificio 108, Udine, 33100, Italy
| | - Carlo Federico Pauletti
- Physics Department, Università degli Studi di Trieste, Via Alfonso Valerio 2, Trieste, 34127, Italy
| | | | - Marta Boaro
- Dipartimento Politecnico and INSTM, Università degli Studi di Udine, Via del Cotonificio 108, Udine, 33100, Italy
| | - Luca Braglia
- TASC Laboratory, CNR- Istituto Officina dei Materiali, Trieste, 34149, Italy
- AREA Science Park, Padriciano 99, Trieste, I-34149, Italy
| | - Stefano Fabris
- TASC Laboratory, CNR- Istituto Officina dei Materiali, Trieste, 34149, Italy
| | - Simone Piccinin
- TASC Laboratory, CNR- Istituto Officina dei Materiali, Trieste, 34149, Italy
| | - Piero Torelli
- TASC Laboratory, CNR- Istituto Officina dei Materiali, Trieste, 34149, Italy
| | - Alessandro Trovarelli
- Dipartimento Politecnico and INSTM, Università degli Studi di Udine, Via del Cotonificio 108, Udine, 33100, Italy
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4
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Borges Serra AR, Castro de Sousa G, de Carvalho Gomes V, Alves de Sousa Filho I, Grisolia CK, Zhao B, Walton RI, Serra OA. Enhancing photocatalytic tetracycline degradation through the fabrication of high surface area CeO 2 from a cerium-organic framework. RSC Adv 2024; 14:17507-17518. [PMID: 38818361 PMCID: PMC11138135 DOI: 10.1039/d4ra02640c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Accepted: 05/16/2024] [Indexed: 06/01/2024] Open
Abstract
Water pollution is a global environmental issue, and the presence of pharmaceutical compounds, such as tetracyclines (TCs), in aquatic ecosystems has raised growing concerns due to the potential risks to both the environment and human health. A high surface area CeO2 was prepared via atmospheric thermal treatment of a metal-organic framework of cerium and benzene-1,3,5-tricarboxylate. The effects of calcination temperature on the morphology, structure, light absorption properties and tetracycline removal efficiency were studied. The best activity of the photocatalysts could be achieved when the heat treatment temperature is 300 °C, which enhances the photocatalytic degradation performance towards tetracycline under visible light. The resulting CeO2 particles have high capacity for adsorbing TCs from aqueous solution: 90 mg g-1 for 60 mg L-1 TCs. As a result, 98% of the initial TC can be removed under simulated sunlight irradiation. The cooperation of moderate defect concentration and disordered structure showed tetracycline removal activity about 10 times higher than the initial Ce-MOF. An embryotoxicity assessment on zebrafish revealed that treatment with CeO2 particles significantly decreased the toxicity of TC solutions.
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Affiliation(s)
- Ayla Roberta Borges Serra
- Department of Chemistry and Chemical Engineering, University Federal of São Carlos São Carlos Brazil
| | | | | | | | - Cesar Koppe Grisolia
- Department of Genetics and Morphology, Institute of Biological Sciences, University Brasilia-UnB Brasilia Brazil
| | - Baiwen Zhao
- Department of Chemistry, University of Warwick Coventry CV4 7AL UK
| | - Richard I Walton
- Department of Chemistry, University of Warwick Coventry CV4 7AL UK
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Danielis M, Felli A, Zampol M, Fonda N, Brüner P, Grehl T, Furlani E, Maschio S, Colussi S, Trovarelli A. Tuning Chemical and Morphological Properties of Ceria Nanopowders by Mechanochemistry. ACS OMEGA 2024; 9:12046-12059. [PMID: 38496971 PMCID: PMC10938310 DOI: 10.1021/acsomega.3c09926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 01/25/2024] [Accepted: 02/06/2024] [Indexed: 03/19/2024]
Abstract
Cerium oxide powders are widely used and are of fundamental importance in catalytic pollution control and energy production due to the unique chemical properties of CeO2. Processing steps involved in catalyst preparation, such as high-temperature calcination or mechanical milling processes, can alter the morphological and chemical properties of ceria, heavily affecting its final properties. Here, we focus on the tuning of CeO2 nanopowder properties by mild- and high-energy milling processes, as the mechanochemical synthesis is gaining increasing attention as a green synthesis method for catalyst production. The textural and redox properties were analyzed by an array of techniques to follow the aggregation and comminution mechanisms induced by mechanical stresses, which are more prominent under high-energy conditions but strongly depend on the starting properties of the ceria powders. Simultaneously, the evolution of surface defects and chemical properties was followed by Raman spectroscopy and H2 reduction tests, ultimately revealing a trade-off effect between structural and redox properties induced by the mechanochemical action. The mild-energy process appears to induce the largest enhancement in surface properties while maintaining bulk properties of the starting materials, hence confirming its effectiveness for its exploitation in catalysis.
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Affiliation(s)
- Maila Danielis
- Dipartimento Politecnico e INSTM, Università degli Studi di Udine, Udine 33100, Italy
| | - Andrea Felli
- Dipartimento Politecnico e INSTM, Università degli Studi di Udine, Udine 33100, Italy
| | - Matteo Zampol
- Dipartimento Politecnico e INSTM, Università degli Studi di Udine, Udine 33100, Italy
| | - Nicolas Fonda
- Dipartimento Politecnico e INSTM, Università degli Studi di Udine, Udine 33100, Italy
| | | | | | - Erika Furlani
- Dipartimento Politecnico e INSTM, Università degli Studi di Udine, Udine 33100, Italy
| | - Stefano Maschio
- Dipartimento Politecnico e INSTM, Università degli Studi di Udine, Udine 33100, Italy
| | - Sara Colussi
- Dipartimento Politecnico e INSTM, Università degli Studi di Udine, Udine 33100, Italy
| | - Alessandro Trovarelli
- Dipartimento Politecnico e INSTM, Università degli Studi di Udine, Udine 33100, Italy
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Martín Morales E, Alarcón A, Biset-Peiró M, Xuriguera E, Guilera J. Shaping of Porous CeO 2 Powders into Highly Active Catalyst Carriers. ACS APPLIED ENGINEERING MATERIALS 2023; 1:1106-1115. [PMID: 37152715 PMCID: PMC10153443 DOI: 10.1021/acsaenm.2c00214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Accepted: 03/15/2023] [Indexed: 05/09/2023]
Abstract
CeO2 is attracting more and more attention because of its outstanding performance in heterogeneous catalysis, as an active support and a reaction promoter in reactions of industrial interest. We herein describe a novel and scalable manufacturing process of mm-sized CeO2 spheres by a combination of extrusion and spheronization of CeO2 porous powders. In this study, wet paste formulation and fabrication procedures were optimized, and as a result methylcellulose was identified as the best plasticizer for paste extrusion to provide well-defined spherical shapes and smooth surfaces, as well as reproducible batches. After nickel impregnation (10 wt %), the catalytic performance of CeO2 supports was evaluated in the CO2 methanation reaction (T = 250-350 °C, P = 5 bar·g) and compared with that of commercial Al2O3 spheres doped or not with CeO2. These novel CeO2-based catalysts are easily reduced at a moderate temperature and more active than the Al2O3 analogues, particularly at low reaction temperatures and small reactor volumes, properties that make their implementation in emerging reactor configurations very promising.
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Affiliation(s)
- Elena Martín Morales
- Catalonia
Institute for Energy Research (IREC), Jardins de Les Dones de Negre 1, 08930 Sant Adrià de Besòs, Spain
| | - Andreína Alarcón
- Catalonia
Institute for Energy Research (IREC), Jardins de Les Dones de Negre 1, 08930 Sant Adrià de Besòs, Spain
- Escuela
Superior Politécnica del Litoral, ESPOL, Facultad de Ingeniería
en Ciencias de la Tierra, Campus Gustavo Galindo Km.30.5 Vía Perimetral, P.O. Box 09-01-5863, 090101 Guayaquil, Ecuador
| | - Martí Biset-Peiró
- Catalonia
Institute for Energy Research (IREC), Jardins de Les Dones de Negre 1, 08930 Sant Adrià de Besòs, Spain
| | - Elena Xuriguera
- Facultat
de Química, Universitat de Barcelona, Martí I Franquès 1, 08028 Barcelona, Spain
| | - Jordi Guilera
- Catalonia
Institute for Energy Research (IREC), Jardins de Les Dones de Negre 1, 08930 Sant Adrià de Besòs, Spain
- Facultat
de Química, Universitat de Barcelona, Martí I Franquès 1, 08028 Barcelona, Spain
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7
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Choolaei M, Jakubczyk E, Horri BA. Synthesis and characterisation of a ceria-based cobalt-zinc anode nanocomposite for low-temperature solid oxide fuel cells (LT-SOFCs). Electrochim Acta 2023. [DOI: 10.1016/j.electacta.2023.142057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
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8
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Salusso D, Mauri S, Deplano G, Torelli P, Bordiga S, Rojas-Buzo S. MOF-Derived CeO 2 and CeZrO x Solid Solutions: Exploring Ce Reduction through FTIR and NEXAFS Spectroscopy. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:272. [PMID: 36678025 PMCID: PMC9865843 DOI: 10.3390/nano13020272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Revised: 12/30/2022] [Accepted: 01/05/2023] [Indexed: 06/17/2023]
Abstract
The development of Ce-based materials is directly dependent on the catalyst surface defects, which is caused by the calcination steps required to increase structural stability. At the same time, the evaluation of cerium's redox properties under reaction conditions is of increasing relevant importance. The synthesis of Ce-UiO-66 and CeZr-UiO-66 and their subsequent calcination are presented here as a simple and inexpensive approach for achieving homogeneous and stable CeO2 and CeZrOx nanocrystals. The resulting materials constitute an ideal case study to thoroughly understand cerium redox properties. The Ce3+/Ce4+ redox properties are investigated by H2-TPR experiments exploited by in situ FT-IR and Ce M5-edge AP-NEXAFS spectroscopy. In the latter case, Ce3+ formation is quantified using the MCR-ALS protocol. FT-IR is then presented as a high potential/easily accessible technique for extracting valuable information about the cerium oxidation state under operating conditions. The dependence of the OH stretching vibration frequency on temperature and Ce reduction is described, providing a novel tool for qualitative monitoring of surface oxygen vacancy formation. Based on the reported results, the molecular absorption coefficient of the Ce3+ characteristic IR transition is tentatively evaluated, thus providing a basis for future Ce3+ quantification through FT-IR spectroscopy. Finally, the FT-IR limitations for Ce3+ quantification are discussed.
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Affiliation(s)
- Davide Salusso
- Department of Chemistry, NIS Center and INSTM Reference Center, University of Turin, 10125 Turin, Italy
- European Synchrotron Radiation Facility, CS 40220, CEDEX 9, 38043 Grenoble, France
| | - Silvia Mauri
- IOM CNR Laboratorio TASC, AREA Science Park, Basovizza, 34149 Trieste, Italy
- Department of Physics, University of Trieste, Via Valerio 2, 34127 Trieste, Italy
| | - Gabriele Deplano
- Department of Chemistry, NIS Center and INSTM Reference Center, University of Turin, 10125 Turin, Italy
| | - Piero Torelli
- IOM CNR Laboratorio TASC, AREA Science Park, Basovizza, 34149 Trieste, Italy
| | - Silvia Bordiga
- Department of Chemistry, NIS Center and INSTM Reference Center, University of Turin, 10125 Turin, Italy
| | - Sergio Rojas-Buzo
- Department of Chemistry, NIS Center and INSTM Reference Center, University of Turin, 10125 Turin, Italy
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Wissink T, van de Poll RC, Figueiredo MC, Hensen EJ. Stability of In2O3 nanoparticles in PTFE-containing gas diffusion electrodes for CO2 electroreduction to formate. J CO2 UTIL 2023. [DOI: 10.1016/j.jcou.2022.102331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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10
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A Review of CeO2 Supported Catalysts for CO2 Reduction to CO through the Reverse Water Gas Shift Reaction. Catalysts 2022. [DOI: 10.3390/catal12101101] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
The catalytic conversion of CO2 to CO by the reverse water gas shift (RWGS) reaction followed by well-established synthesis gas conversion technologies could be a practical technique to convert CO2 to valuable chemicals and fuels in industrial settings. For catalyst developers, prevention of side reactions like methanation, low-temperature activity, and selectivity enhancements for the RWGS reaction are crucial concerns. Cerium oxide (ceria, CeO2) has received considerable attention in recent years due to its exceptional physical and chemical properties. This study reviews the use of ceria-supported active metal catalysts in RWGS reaction along with discussing some basic and fundamental features of ceria. The RWGS reaction mechanism, reaction kinetics on supported catalysts, as well as the importance of oxygen vacancies are also explored. Besides, recent advances in CeO2 supported metal catalyst design strategies for increasing CO2 conversion activity and selectivity towards CO are systematically identified, summarized, and assessed to understand the impacts of physicochemical parameters on catalytic performance such as morphologies, nanosize effects, compositions, promotional abilities, metal-support interactions (MSI) and the role of selected synthesis procedures for forming distinct structural morphologies. This brief review may help with future RWGS catalyst design and optimization.
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Nemiwal M, Sillanpaa M, Banat F, Kumar D. CeO2-encapsulated metal nanoparticles: Synthesis, properties and catalytic applications. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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12
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Performance Study of Methane Dry Reforming on Ni/ZrO2 Catalyst. ENERGIES 2022. [DOI: 10.3390/en15103841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Dry reforming of methane (DRM) has important and positive environmental and industrial impacts, as it consumes two of the top greenhouse gases in order to produce syngas (H2 and CO) and thus hydrogen (H2). The performance of DRM of conversions of CH4 and CO2 was investigated over Ni/ZrO2 catalysts. The catalytic performance of all prepared catalysts for DRM was assessed in a micro-tubular fixed bed reactor under similar reaction conditions (i.e., activation and reaction temperatures at 700 °C, a feed flow rate of 70 mL/min, reaction temperature, and a 440 min reaction time). Various characterization techniques, such as BET, CO2-TPD, TGA, XRD, EDX, and TEM, were employed. The zirconia support was modified with MgO or Y2O3. The yttria-stabilized zirconia catalyst (5Ni15YZr) provided the optimum activity performance of CH4 and CO2 conversions of 56.1 and 64.3%, respectively, at 700 °C and a 70 mL/min flow rate; this catalyst also had the highest basicity. The Ni-based catalyst was promoted with Cs, Ga, and Sr. The Sr-promoted catalyst produced the highest enhancement of activity. The influence of the reaction temperature and the feed flow rate on 5Ni15YZr and 5NiSr15YZr indicated that the activity increased with the increase in the reaction temperature and lower feed flow rate. For 5Ni3Sr15YZr, at a reaction temperature of 800 °C, the CH4 and CO2 conversions were 76.3 and 79.9%, respectively, whereas at 700 °C, the conversions of CH4 and CO2 were 66.6 and 79.6% respectively.
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13
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Razmgar K, Altarawneh M, Oluwoye I, Senanayake G. Selective Hydrogenation of 1,3-Butadiene over Ceria Catalyst: A Molecular Insight. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112331] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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14
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Alioui O, Badawi M, Erto A, Amin MA, Tirth V, Jeon BH, Islam S, Balsamo M, Virginie M, Ernst B, Benguerba Y. Contribution of DFT to the optimization of Ni-based catalysts for dry reforming of methane: a review. CATALYSIS REVIEWS 2022. [DOI: 10.1080/01614940.2021.2020518] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Oualid Alioui
- Laboratoire de génie des procédés chimiques, LGPC, Université Ferhat ABBAS Sétif-1 19000 Sétif, Algeria
| | - Michael Badawi
- Laboratoire de Physique et Chimie Théoriques, UMR CNRS 7019, Université de Lorraine, 54000 Nancy, France
| | - Alessandro Erto
- Dipartimento di Ingegneria Chimica, dei Materiali e Università degli Studi di Napoli, P.leTecchio, 80, 80125, Napoli, Italy
| | - Mohammed A. Amin
- Department of Chemistry, College of Science, Taif University, Taif 21944, Saudi Arabia
| | - Vineet Tirth
- Mechanical Engineering Department, College of Engineering, King Khalid University, Abha 61411, Asir, Kingdom of Saudi Arabia
- Research Center for Advanced Materials Science (RCAMS), King Khalid University Guraiger, Abha, Asir, Kingdom of Saudi Arabia
| | - Byong-Hun Jeon
- Department of Earth Resources and Environmental Engineering, Hanyang University, Seoul, 04763, Republic of Korea
| | - Saiful Islam
- Civil Engineering Department, College of Engineering, King Khalid University, Abha-61411, Asir, Kingdom of Saudi Arabia
| | - Marco Balsamo
- Dipartimento di Scienze Chimiche, Università degli Studi di Napoli Federico II, Complesso Universitario di Monte Sant’Angelo, 80126 Napoli, Italy
| | - Mirella Virginie
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Uni. Artois, UMR 8181 –UCCS – Unité de Catalyse et de Chimie du Solide, F-59000 Lille, France
| | - Barbara Ernst
- Université de Strasbourg, CNRS, IPHC UMR 7178, Laboratoire de Reconnaissance et Procédés de Séparation Moléculaire (RePSeM), ECPM 25 rue Becquerel, Université de Strasbourg, Strasbourg, France
| | - Yacine Benguerba
- Department of Chemistry, College of Science, Taif University, Taif 21944, Saudi Arabia
- Department of process engineering, Faculty of Technology, Ferhat ABBAS Sétif 1 University, 19000 Setif, Algeria
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Enhanced catalytic activity and stability of nanoshaped Ni/CeO2 for CO2 methanation in micro-monoliths. Catal Today 2022. [DOI: 10.1016/j.cattod.2021.02.014] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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16
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Sun J, Yamaguchi D, Tang L, Periasamy S, Ma H, Hart JN, Chiang K. Enhancement of oxygen exchanging capability by loading a small amount of ruthenium over ceria-zirconia on dry reforming of methane. ADV POWDER TECHNOL 2021. [DOI: 10.1016/j.apt.2021.103407] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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17
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18
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Jomjaree T, Sintuya P, Srifa A, Koo-amornpattana W, Kiatphuengporn S, Assabumrungrat S, Sudoh M, Watanabe R, Fukuhara C, Ratchahat S. Catalytic performance of Ni catalysts supported on CeO2 with different morphologies for low-temperature CO2 methanation. Catal Today 2021. [DOI: 10.1016/j.cattod.2020.08.010] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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19
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Huang X, Zhang K, Peng B, Wang G, Muhler M, Wang F. Ceria-Based Materials for Thermocatalytic and Photocatalytic Organic Synthesis. ACS Catal 2021. [DOI: 10.1021/acscatal.1c02443] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Xiubing Huang
- Beijing Key Laboratory of Function Materials for Molecule & Structure Construction, School of Materials Science and Engineering, University of Science and Technology Beijing, No. 30 Xueyuan Road, Beijing 10083, PR China
| | - Kaiyue Zhang
- Beijing Key Laboratory of Function Materials for Molecule & Structure Construction, School of Materials Science and Engineering, University of Science and Technology Beijing, No. 30 Xueyuan Road, Beijing 10083, PR China
| | - Baoxiang Peng
- Laboratory of Industrial Chemistry, Faculty of Chemistry and Biochemistry, Ruhr-University Bochum, Universitätsstrasse 150, 44780 Bochum, Nordrhein-Westfalen, Germany
- Max Planck Institute for Chemical Energy Conversion, Stiftstrasse 34−36, 45470 Mülheim an der Ruhr, Nordrhein-Westfalen, Germany
| | - Ge Wang
- Beijing Key Laboratory of Function Materials for Molecule & Structure Construction, School of Materials Science and Engineering, University of Science and Technology Beijing, No. 30 Xueyuan Road, Beijing 10083, PR China
| | - Martin Muhler
- Laboratory of Industrial Chemistry, Faculty of Chemistry and Biochemistry, Ruhr-University Bochum, Universitätsstrasse 150, 44780 Bochum, Nordrhein-Westfalen, Germany
- Max Planck Institute for Chemical Energy Conversion, Stiftstrasse 34−36, 45470 Mülheim an der Ruhr, Nordrhein-Westfalen, Germany
| | - Feng Wang
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning 116023, PR China
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20
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Ziemba M, Schilling C, Ganduglia-Pirovano MV, Hess C. Toward an Atomic-Level Understanding of Ceria-Based Catalysts: When Experiment and Theory Go Hand in Hand. Acc Chem Res 2021; 54:2884-2893. [PMID: 34137246 PMCID: PMC8264949 DOI: 10.1021/acs.accounts.1c00226] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
ConspectusBecause ceria (CeO2) is a key ingredient in the formulation of many catalysts, its catalytic roles have received a great amount of attention from experiment and theory. Its primary function is to enhance the oxidation activity of catalysts, which is largely governed by the low activation barrier for creating lattice O vacancies. Such an important characteristic of ceria has been exploited in CO oxidation, methane partial oxidation, volatile organic compound oxidation, and the water-gas shift (WGS) reaction and in the context of automotive applications. A great challenge of such heterogeneously catalyzed processes remains the unambiguous identification of active sites.In oxidation reactions, closing the catalytic cycle requires ceria reoxidation by gas-phase oxygen, which includes oxygen adsorption and activation. While the general mechanistic framework of such processes is accepted, only very recently has an atomic-level understanding of oxygen activation on ceria powders been achieved by combined experimental and theoretical studies using in situ multiwavelength Raman spectroscopy and DFT.Recent studies have revealed that the adsorption and activation of gas-phase oxygen on ceria is strongly facet-dependent and involves different superoxide/peroxide species, which can now be unambiguously assigned to ceria surface sites using the combined Raman and DFT approach. Our results demonstrate that, as a result of oxygen dissociation, vacant ceria lattice sites are healed, highlighting the close relationship of surface processes with lattice oxygen dynamics, which is also of technical relevance in the context of oxygen storage-release applications.A recent DFT interpretation of Raman spectra of polycrystalline ceria enables us to take account of all (sub)surface and bulk vibrational features observed in the experimental spectra and has revealed new findings of great relevance for a mechanistic understanding of ceria-based catalysts. These include the identification of surface oxygen (Ce-O) modes and the quantification of subsurface oxygen defects. Combining these theoretical insights with operando Raman experiments now allows the (sub)surface oxygen dynamics of ceria and noble metal/ceria catalysts to be monitored under the reaction conditions.Applying these findings to Au/ceria catalysts provides univocal evidence for ceria support participation in heterogeneous catalysis. For room-temperature CO oxidation, operando Raman monitoring the (sub)surface defect dynamics clearly demonstrates the dependence of catalytic activity on the ceria reduction state. Extending the combined experimental/DFT approach to operando IR spectroscopy allows the elucidation of the nature of the active gold as (pseudo)single Au+ sites and enables us to develop a detailed mechanistic picture of the catalytic cycle. Temperature-dependent studies highlight the importance of facet-dependent defect formation energies and adsorbate stabilities (e.g., carbonates). While the latter aspects are also evidenced to play a role in the WGS reaction, the facet-dependent catalytic performance shows a correlation with the extent of gold agglomeration. Our findings are fully consistent with a redox mechanism, thus adding a new perspective to the ongoing discussion of the WGS reaction.As outlined above for ceria-based catalysts, closely combining state-of-the-art in situ/operando spectroscopy and theory constitutes a powerful approach to rational catalyst design by providing essential mechanistic information based on an atomic-level understanding of reactions.
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Affiliation(s)
- Marc Ziemba
- Eduard-Zintl-Institute of Inorganic and Physical Chemistry, Technical University of Darmstadt, Alarich-Weiss-Str. 8, 64287 Darmstadt, Germany
| | - Christian Schilling
- Eduard-Zintl-Institute of Inorganic and Physical Chemistry, Technical University of Darmstadt, Alarich-Weiss-Str. 8, 64287 Darmstadt, Germany
| | - M. Verónica Ganduglia-Pirovano
- Instituto de Catálisis y Petroleoquímica - Consejo Superior de Investigaciones Científicas, Marie Curie 2, 28049 Madrid, Spain
| | - Christian Hess
- Eduard-Zintl-Institute of Inorganic and Physical Chemistry, Technical University of Darmstadt, Alarich-Weiss-Str. 8, 64287 Darmstadt, Germany
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21
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Ho PH, Sanghez de Luna G, Poggi A, Nota M, Rodríguez-Castellón E, Fornasari G, Vaccari A, Benito P. Ru–CeO 2 and Ni–CeO 2 Coated on Open-Cell Metallic Foams by Electrodeposition for the CO 2 Methanation. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.0c06024] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Phuoc Hoang Ho
- Dipartimento di Chimica Industriale “Toso Montanari”, University of Bologna, Viale Risorgimento 4, 40136 Bologna, Italy
| | - Giancosimo Sanghez de Luna
- Dipartimento di Chimica Industriale “Toso Montanari”, University of Bologna, Viale Risorgimento 4, 40136 Bologna, Italy
| | - Arturo Poggi
- Dipartimento di Chimica Industriale “Toso Montanari”, University of Bologna, Viale Risorgimento 4, 40136 Bologna, Italy
| | - Monica Nota
- Dipartimento di Chimica Industriale “Toso Montanari”, University of Bologna, Viale Risorgimento 4, 40136 Bologna, Italy
| | | | - Giuseppe Fornasari
- Dipartimento di Chimica Industriale “Toso Montanari”, University of Bologna, Viale Risorgimento 4, 40136 Bologna, Italy
| | - Angelo Vaccari
- Dipartimento di Chimica Industriale “Toso Montanari”, University of Bologna, Viale Risorgimento 4, 40136 Bologna, Italy
| | - Patricia Benito
- Dipartimento di Chimica Industriale “Toso Montanari”, University of Bologna, Viale Risorgimento 4, 40136 Bologna, Italy
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22
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Abstract
The rapid separation and efficient recycling of catalysts after a catalytic reaction are considered important requirements along with the high catalytic performances. In this view, although heterogeneous catalysis is generally less efficient if compared to the homogeneous type, it is generally preferred since it benefits from the easy recovery of the catalyst. Recycling of heterogeneous catalysts using traditional methods of separation such as extraction, filtration, vacuum distillation, or centrifugation is tedious and time-consuming. They are uneconomic processes and, hence, they cannot be carried out in the industrial scale. For these limitations, today, the research is devoted to the development of new methods that allow a good separation and recycling of catalysts. The separation process should follow a procedure economically and technically feasible with a minimal loss of the solid catalyst. The aim of this work is to provide an overview about the current trends in the methods of separation/recycling used in the heterogeneous catalysis.
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Yan Z, Liu Q, Liang L, Ouyang J. Surface hydroxyls mediated CO2 methanation at ambient pressure over attapulgite-loaded Ni-TiO2 composite catalysts with high activity and reuse ability. J CO2 UTIL 2021. [DOI: 10.1016/j.jcou.2021.101489] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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24
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Capture and Reuse of Carbon Dioxide (CO2) for a Plastics Circular Economy: A Review. Processes (Basel) 2021. [DOI: 10.3390/pr9050759] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Plastic production has been increasing at enormous rates. Particularly, the socioenvironmental problems resulting from the linear economy model have been widely discussed, especially regarding plastic pieces intended for single use and disposed improperly in the environment. Nonetheless, greenhouse gas emissions caused by inappropriate disposal or recycling and by the many production stages have not been discussed thoroughly. Regarding the manufacturing processes, carbon dioxide is produced mainly through heating of process streams and intrinsic chemical transformations, explaining why first-generation petrochemical industries are among the top five most greenhouse gas (GHG)-polluting businesses. Consequently, the plastics market must pursue full integration with the circular economy approach, promoting the simultaneous recycling of plastic wastes and sequestration and reuse of CO2 through carbon capture and utilization (CCU) strategies, which can be employed for the manufacture of olefins (among other process streams) and reduction of fossil-fuel demands and environmental impacts. Considering the previous remarks, the present manuscript’s purpose is to provide a review regarding CO2 emissions, capture, and utilization in the plastics industry. A detailed bibliometric review of both the scientific and the patent literature available is presented, including the description of key players and critical discussions and suggestions about the main technologies. As shown throughout the text, the number of documents has grown steadily, illustrating the increasing importance of CCU strategies in the field of plastics manufacture.
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25
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Méndez‐Salazar S, Aguilar‐Martínez O, Piña‐Pérez Y, Pérez‐Hernández R, Santolalla‐Vargas CE, Gómez R, Tzompantzi F. Effect of the Oxygen Vacancies in CeO
2
by the Ce
3+
Incorporation to Enhance the Photocatalytic Mineralization of Phenol. ChemistrySelect 2021. [DOI: 10.1002/slct.202100459] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Sandra Méndez‐Salazar
- Departmento de Química Universidad Autónoma Metropolitana-Iztapalapa Av. San Rafael Atlixco No. 189 Iztapalapa CDMX, C.P. 09340 México
| | - Octavio Aguilar‐Martínez
- Departmento de Química Universidad Autónoma Metropolitana-Iztapalapa Av. San Rafael Atlixco No. 189 Iztapalapa CDMX, C.P. 09340 México
- Departmento de Estudios del Ambiente Instituto Nacional de Investigaciones Nucleares Carretera México-Toluca s/n La Marquesa Ocoyoacac, Edo. De México, C.P. 52750 México
| | - Yanet Piña‐Pérez
- Departmento de Química Universidad Autónoma Metropolitana-Iztapalapa Av. San Rafael Atlixco No. 189 Iztapalapa CDMX, C.P. 09340 México
| | - Raúl Pérez‐Hernández
- Departmento de Estudios del Ambiente Instituto Nacional de Investigaciones Nucleares Carretera México-Toluca s/n La Marquesa Ocoyoacac, Edo. De México, C.P. 52750 México
| | - Carlos E. Santolalla‐Vargas
- Departamento de Biociencias e Ingeniería Centro Interdisciplinario de Investigaciones y Estudios sobre Medio Ambiente y Desarrollo (CIIEMAD) Instituto Politécnico Nacional 30 de Junio de 1520 s/n, La Laguna Ticoman Gustavo A. Madero 07340 Ciudad de México, CDMX
| | - Ricardo Gómez
- Departmento de Química Universidad Autónoma Metropolitana-Iztapalapa Av. San Rafael Atlixco No. 189 Iztapalapa CDMX, C.P. 09340 México
| | - Francisco Tzompantzi
- Departmento de Química Universidad Autónoma Metropolitana-Iztapalapa Av. San Rafael Atlixco No. 189 Iztapalapa CDMX, C.P. 09340 México
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Plšek J, Drogowska-Horná KA, Guerra VLP, Mikšátko J, Valeš V, Kalbáč M. Towards Catalytically Active Porous Graphene Membranes with Pulsed Laser Deposited Ceria Nanoparticles. Chemistry 2021; 27:4150-4158. [PMID: 33326151 DOI: 10.1002/chem.202004779] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Indexed: 11/07/2022]
Abstract
Porous graphene with catalytically active ceria nanometre-size particles were prepared using pulsed laser deposition (PLD) on graphene produced through chemical vapour deposition (CVD). The reported process provided porous graphene containing ceria nanoparticles as confirmed by HR TEM and XPS. Isotopically labelled 13 C graphene was employed to study desorption of the species containing carbon. Methanol adsorption was utilised to probe the nature of the catalytic activity of prepared ceria decorated graphene. The important role of graphene support for the stabilization of reduced ceria nanoparticles was finally confirmed. Increased dehydrogenation activity of graphene with ceria nanoparticles leading to CO and H2 formation was demonstrated.
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Affiliation(s)
- Jan Plšek
- Department of Low-dimensional Systems, J. Heyrovský Institute of Physical Chemistry, Academy of Sciences of the Czech Republic, v.v.i., Dolejškova 3, 18223, Prague 8, Czech Republic
| | - Karolina Anna Drogowska-Horná
- Department of Low-dimensional Systems, J. Heyrovský Institute of Physical Chemistry, Academy of Sciences of the Czech Republic, v.v.i., Dolejškova 3, 18223, Prague 8, Czech Republic
| | - Valentino L P Guerra
- Department of Low-dimensional Systems, J. Heyrovský Institute of Physical Chemistry, Academy of Sciences of the Czech Republic, v.v.i., Dolejškova 3, 18223, Prague 8, Czech Republic
| | - Jiří Mikšátko
- Department of Low-dimensional Systems, J. Heyrovský Institute of Physical Chemistry, Academy of Sciences of the Czech Republic, v.v.i., Dolejškova 3, 18223, Prague 8, Czech Republic
| | - Václav Valeš
- Department of Low-dimensional Systems, J. Heyrovský Institute of Physical Chemistry, Academy of Sciences of the Czech Republic, v.v.i., Dolejškova 3, 18223, Prague 8, Czech Republic
| | - Martin Kalbáč
- Department of Low-dimensional Systems, J. Heyrovský Institute of Physical Chemistry, Academy of Sciences of the Czech Republic, v.v.i., Dolejškova 3, 18223, Prague 8, Czech Republic
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27
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Barroso-Bogeat A, Blanco G, Pérez-Sagasti JJ, Escudero C, Pellegrin E, Herrera FC, Pintado JM. Thermocatalytic CO 2 Conversion over a Nickel-Loaded Ceria Nanostructured Catalyst: A NAP-XPS Study. MATERIALS 2021; 14:ma14040711. [PMID: 33546339 PMCID: PMC7913549 DOI: 10.3390/ma14040711] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 01/22/2021] [Accepted: 01/30/2021] [Indexed: 11/16/2022]
Abstract
Despite the increasing economic incentives and environmental advantages associated to their substitution, carbon-rich fossil fuels are expected to remain as the dominant worldwide source of energy through at least the next two decades and perhaps later. Therefore, both the control and reduction of CO2 emissions have become environmental issues of major concern and big challenges for the international scientific community. Among the proposed strategies to achieve these goals, conversion of CO2 by its reduction into high added value products, such as methane or syngas, has been widely agreed to be the most attractive from the environmental and economic points of view. In the present work, thermocatalytic reduction of CO2 with H2 was studied over a nanostructured ceria-supported nickel catalyst. Ceria nanocubes were employed as support, while the nickel phase was supported by means a surfactant-free controlled chemical precipitation method. The resulting nanocatalyst was characterized in terms of its physicochemical properties, with special attention paid to both surface basicity and reducibility. The nanocatalyst was studied during CO2 reduction by means of Near Ambient Pressure X-ray Photoelectron Spectroscopy (NAP-XPS). Two different catalytic behaviors were observed depending on the reaction temperature. At low temperature, with both Ce and Ni in an oxidized state, CH4 formation was observed, whereas at high temperature above 500 °C, the reverse water gas shift reaction became dominant, with CO and H2O being the main products. NAP-XPS was revealed as a powerful tool to study the behavior of this nanostructured catalyst under reaction conditions.
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Affiliation(s)
- Adrián Barroso-Bogeat
- Department of Materials Science and Metallurgical Engineering and Inorganic Chemistry, Faculty of Sciences, University of Cádiz, Campus Río San Pedro s/n, 11510 Puerto Real (Cádiz), Spain;
- Institute for Research in Electron Microscopy and Materials (IMEYMAT), Faculty of Sciences, University of Cádiz, Campus Río San Pedro s/n, 11510 Puerto Real (Cádiz), Spain
- Correspondence: (A.B.-B.); (G.B.); Tel.: +34-956016701-2022 (A.B.-B.); +34-956012746 (G.B.)
| | - Ginesa Blanco
- Department of Materials Science and Metallurgical Engineering and Inorganic Chemistry, Faculty of Sciences, University of Cádiz, Campus Río San Pedro s/n, 11510 Puerto Real (Cádiz), Spain;
- Institute for Research in Electron Microscopy and Materials (IMEYMAT), Faculty of Sciences, University of Cádiz, Campus Río San Pedro s/n, 11510 Puerto Real (Cádiz), Spain
- Correspondence: (A.B.-B.); (G.B.); Tel.: +34-956016701-2022 (A.B.-B.); +34-956012746 (G.B.)
| | - Juan José Pérez-Sagasti
- Central Services of Scientific and Technological Research (SC-ICYT), University of Cádiz, Campus Río San Pedro s/n, 11510 Puerto Real (Cádiz), Spain;
| | - Carlos Escudero
- ALBA Synchrotron Light Source, Carrer de la Llum 2-26, 08290 Cerdanyola del Vallès (Barcelona), Spain; (C.E.); (E.P.); (F.C.H.)
| | - Eric Pellegrin
- ALBA Synchrotron Light Source, Carrer de la Llum 2-26, 08290 Cerdanyola del Vallès (Barcelona), Spain; (C.E.); (E.P.); (F.C.H.)
| | - Facundo C. Herrera
- ALBA Synchrotron Light Source, Carrer de la Llum 2-26, 08290 Cerdanyola del Vallès (Barcelona), Spain; (C.E.); (E.P.); (F.C.H.)
- Institute for Theoretical and Applied Physicochemical Research (INIFTA, CONICET), Department of Chemistry, Faculty of Exact Sciences, National University of La Plata, Diagonal 113 and 64, La Plata 1900, Argentina
| | - José María Pintado
- Department of Materials Science and Metallurgical Engineering and Inorganic Chemistry, Faculty of Sciences, University of Cádiz, Campus Río San Pedro s/n, 11510 Puerto Real (Cádiz), Spain;
- Institute for Research in Electron Microscopy and Materials (IMEYMAT), Faculty of Sciences, University of Cádiz, Campus Río San Pedro s/n, 11510 Puerto Real (Cádiz), Spain
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28
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Effect of alkali (Cs) doping on the surface chemistry and CO2 hydrogenation performance of CuO/CeO2 catalysts. J CO2 UTIL 2021. [DOI: 10.1016/j.jcou.2020.101408] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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29
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Razmgar K, Altarawneh M, Oluwoye I, Senanayake G. Ceria-Based Catalysts for Selective Hydrogenation Reactions: A Critical Review. CATALYSIS SURVEYS FROM ASIA 2021. [DOI: 10.1007/s10563-020-09319-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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30
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The Effects of CeO2 and Co Doping on the Properties and the Performance of the Ni/Al2O3-MgO Catalyst for the Combined Steam and CO2 Reforming of Methane Using Ultra-Low Steam to Carbon Ratio. Catalysts 2020. [DOI: 10.3390/catal10121450] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
In this paper, the 10 wt% Ni/Al2O3-MgO (10Ni/MA), 5 wt% Ni-5 wt% Ce/Al2O3-MgO (5Ni5Ce/MA), and 5 wt% Ni-5 wt% Co/Al2O3-MgO (5Ni5Co/MA) catalysts were prepared by an impregnation method. The effects of CeO2 and Co doping on the physicochemical properties of the Ni/Al2O3-MgO catalyst were comprehensively studied by N2 adsorption-desorption, X-ray diffraction (XRD), transmission electron microscopy (TEM), H2 temperature programmed reduction (H2-TPR), CO2 temperature programmed reduction (CO2-TPD), and thermogravimetric analysis (TGA). The effects on catalytic performance for the combined steam and CO2 reforming of methane with the low steam-to-carbon ratio (S/C ratio) were evaluated at 620 °C under atmospheric pressure. The appearance of CeO2 and Co enhanced the oxygen species at the surface that decreased the coke deposits from 17% for the Ni/MA catalyst to 11–12% for the 5Ni5Ce/MA and 5Ni5Co/MA catalysts. The oxygen vacancies in the 5Ni5Ce/MA catalyst promoted water activation and dissociation, producing surface oxygen with a relatively high H2/CO ratio (1.6). With the relatively low H2/CO ratio (1.3), the oxygen species at the surface was enhanced by CO2 activation-dissociation via the redox potential in the 5Ni5Co/MA catalyst. The improvement of H2O and CO2 dissociative adsorption allowed the 5Ni5Ce/MA and 5Ni5Co/MA catalysts to resist the carbon formation, requiring only a low amount of steam to be added.
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31
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Rawadieh SE, Altarawneh M, Altarawneh IS, Batiha MA, Al-Makhadmeh LA. A kinetic model for evolution of H2 and CO over Zr-doped ceria. MOLECULAR CATALYSIS 2020. [DOI: 10.1016/j.mcat.2020.111256] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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32
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Panaritis C, Zgheib J, Couillard M, Baranova EA. The role of Ru clusters in Fe carbide suppression for the reverse water gas shift reaction over electropromoted Ru/FeO catalysts. Electrochem commun 2020. [DOI: 10.1016/j.elecom.2020.106824] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
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33
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The Role of Alkali and Alkaline Earth Metals in the CO2 Methanation Reaction and the Combined Capture and Methanation of CO2. Catalysts 2020. [DOI: 10.3390/catal10070812] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
CO2 methanation has great potential for the better utilization of existing carbon resources via the transformation of spent carbon (CO2) to synthetic natural gas (CH4). Alkali and alkaline earth metals can serve both as promoters for methanation catalysts and as adsorbent phases upon the combined capture and methanation of CO2. Their promotion effect during methanation of carbon dioxide mainly relies on their ability to generate new basic sites on the surface of metal oxide supports that favour CO2 chemisorption and activation. However, suppression of methanation activity can also occur under certain conditions. Regarding the combined CO2 capture and methanation process, the development of novel dual-function materials (DFMs) that incorporate both adsorption and methanation functions has opened a new pathway towards the utilization of carbon dioxide emitted from point sources. The sorption and catalytically active phases on these types of materials are crucial parameters influencing their performance and stability and thus, great efforts have been undertaken for their optimization. In this review, we present some of the most recent works on the development of alkali and alkaline earth metal promoted CO2 methanation catalysts, as well as DFMs for the combined capture and methanation of CO2.
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34
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Boosting CO2 hydrogenation via size-dependent metal–support interactions in cobalt/ceria-based catalysts. Nat Catal 2020. [DOI: 10.1038/s41929-020-0459-4] [Citation(s) in RCA: 128] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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35
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Caddeo F, Loche D, Casula MF, Corrias A. Growing CeO 2 Nanoparticles Within the Nano-Porous Architecture of the SiO 2 Aerogel. Front Chem 2020; 8:57. [PMID: 32117882 PMCID: PMC7018665 DOI: 10.3389/fchem.2020.00057] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Accepted: 01/17/2020] [Indexed: 11/13/2022] Open
Abstract
In this study, new CeO2-SiO2 aerogel nanocomposites obtained by controlled growth of CeO2 nanoparticles within the highly porous matrix of a SiO2 aerogel are presented. The nanocomposites have been synthesized via a sol-gel route, employing cerium (III) nitrate as the CeO2 precursor and selected surfactants to control the growth of the CeO2 nanoparticles, which occurs during the supercritical drying of the aerogels. Samples with different loading of the CeO2 dispersed phase, ranging from 5 to 15%, were obtained. The nanocomposites showed the morphological features typical of the SiO2 aerogels such as open mesoporosity with surface area values up to 430 m2·g-1. TEM and XRD characterizations show that nanocrystals of the dispersed CeO2 nanophase grow within the aerogel already during the supercritical drying process, with particle sizes in the range of 3 to 5 nm. TEM in particular shows that the CeO2 nanoparticles are well-distributed within the aerogel matrix. We also demonstrate the stability of the nanocomposites under high temperature conditions, performing thermal treatments in air at 450 and 900°C. Interestingly, the CeO2 nanoparticles undergo a very limited crystal growth, with sizes up to only 7 nm in the case of the sample subjected to a 900°C treatment.
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Affiliation(s)
- Francesco Caddeo
- School of Physical Sciences, University of Kent, Canterbury, United Kingdom
| | - Danilo Loche
- School of Physical Sciences, University of Kent, Canterbury, United Kingdom
| | - Maria F Casula
- Department of Mechanical, Chemical and Material Engineering, University of Cagliari, Cagliari, Italy
| | - Anna Corrias
- School of Physical Sciences, University of Kent, Canterbury, United Kingdom
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Abstract
The constant increase in the CO2 concentration in the atmosphere requires us to look for opportunities to convert CO2 into more valuable compounds. In this review, the activity and selectivity of different supported metal catalysts were compared in the hydrogenation of carbon dioxide, and found that Rh is one of the best samples. The possibility of the CO2 dissociation on clean metal and on supported Rh was discussed separately. The hydrogenation of CO2 produces mainly CH4 and CO, but the selectivity of the reaction is affected by the support, in some cases the reduction of the support, the particle size of Rh, and the different additives. At higher pressure methanol, ethanol, and acetic acid could be also formed. The activity of the various supported Rh catalysts was compared and the results obtained for TiO2-, SiO2-, and Al2O3-supported catalysts were discussed in a separate chapter. The compounds formed on the surface of the catalysts during the reaction are shown in detail; mostly, different CO species, adsorbed formate groups, and different carbonates were detected. In a separate chapter the mechanism of the reaction was also discussed.
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37
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Zhang F, Liu Z, Chen X, Rui N, Betancourt LE, Lin L, Xu W, Sun CJ, Abeykoon AMM, Rodriguez JA, Teržan J, Lorber K, Djinović P, Senanayake SD. Effects of Zr Doping into Ceria for the Dry Reforming of Methane over Ni/CeZrO2 Catalysts: In Situ Studies with XRD, XAFS, and AP-XPS. ACS Catal 2020. [DOI: 10.1021/acscatal.9b04451] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Feng Zhang
- Materials Science and Chemical Engineering Department, Stony Brook University, Stony Brook, New York 11794, United States
| | - Zongyuan Liu
- Chemistry Division, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Xiaobo Chen
- Program of Materials Science and Engineering, Department of Mechanical Engineering, State University of New York, Binghamton, New York 13902, United States
| | - Ning Rui
- Chemistry Division, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Luis E. Betancourt
- Chemistry Division, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Lili Lin
- Chemistry Division, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Wenqian Xu
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Cheng-jun Sun
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - A. M. Milinda Abeykoon
- Photon Science Division, National Synchrotron Light Source II, Upton, New York 11973, United States
| | - José A. Rodriguez
- Materials Science and Chemical Engineering Department, Stony Brook University, Stony Brook, New York 11794, United States
- Chemistry Division, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Janvit Teržan
- Department of Inorganic Chemistry and Technology, National Institute of Chemistry, Hajdrihova 19, SI-1001 Ljubljana, Slovenia
| | - Kristijan Lorber
- Department of Inorganic Chemistry and Technology, National Institute of Chemistry, Hajdrihova 19, SI-1001 Ljubljana, Slovenia
| | - Petar Djinović
- Department of Inorganic Chemistry and Technology, National Institute of Chemistry, Hajdrihova 19, SI-1001 Ljubljana, Slovenia
| | - Sanjaya D. Senanayake
- Chemistry Division, Brookhaven National Laboratory, Upton, New York 11973, United States
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38
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Yuan K, Zhang YW. Engineering well-defined rare earth oxide-based nanostructures for catalyzing C1 chemical reactions. Inorg Chem Front 2020. [DOI: 10.1039/d0qi00750a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
In this review, we summarize the nanostructural engineering and applications of rare earth oxide-based nanomaterials with well-defined compositions, crystal phases and shapes for efficiently catalyzing C1 chemical reactions.
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Affiliation(s)
- Kun Yuan
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory of Rare Earth Materials Chemistry and Applications
- PKU-HKU Joint Laboratory in Rare Earth Materials and Bioinorganic Chemistry
- College of Chemistry and Molecular Engineering
- Peking University
| | - Ya-Wen Zhang
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory of Rare Earth Materials Chemistry and Applications
- PKU-HKU Joint Laboratory in Rare Earth Materials and Bioinorganic Chemistry
- College of Chemistry and Molecular Engineering
- Peking University
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39
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Mikhail M, Da Costa P, Amouroux J, Cavadias S, Tatoulian M, Ognier S, Gálvez ME. Electrocatalytic behaviour of CeZrO x-supported Ni catalysts in plasma assisted CO 2 methanation. Catal Sci Technol 2020. [DOI: 10.1039/d0cy00312c] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Plasma and thermo-catalytic methanation were assayed in the presence of a CeZrOx-supported Ni catalyst. High CO2 conversions and high methane yields were obtained under DBD plasma, and are maintained with time-on-stream over 100 h operating time.
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Affiliation(s)
- Maria Mikhail
- Sorbonne Université
- Institut Jean le Rond d'Alembert
- CNRS UMR 7190
- 78210 Saint-Cyr l'Ecole
- France
| | - Patrick Da Costa
- Sorbonne Université
- Institut Jean le Rond d'Alembert
- CNRS UMR 7190
- 78210 Saint-Cyr l'Ecole
- France
| | - Jacques Amouroux
- Institut de Recherche de Chimie Paris
- UMR 8247 (CNRS – Chimie ParisTech)
- 75005 Paris
- France
| | - Siméon Cavadias
- Institut de Recherche de Chimie Paris
- UMR 8247 (CNRS – Chimie ParisTech)
- 75005 Paris
- France
| | - Michael Tatoulian
- Institut de Recherche de Chimie Paris
- UMR 8247 (CNRS – Chimie ParisTech)
- 75005 Paris
- France
| | - Stéphanie Ognier
- Institut de Recherche de Chimie Paris
- UMR 8247 (CNRS – Chimie ParisTech)
- 75005 Paris
- France
| | - María Elena Gálvez
- Sorbonne Université
- Institut Jean le Rond d'Alembert
- CNRS UMR 7190
- 78210 Saint-Cyr l'Ecole
- France
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40
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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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41
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Rosid SJM, Toemen S, Iqbal MMA, Bakar WAWA, Mokhtar WNAW, Aziz MMA. Overview performance of lanthanide oxide catalysts in methanation reaction for natural gas production. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:36124-36140. [PMID: 31748998 DOI: 10.1007/s11356-019-06607-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2018] [Accepted: 09/24/2019] [Indexed: 06/10/2023]
Abstract
A rapid growth in the development of power generation and transportation sectors would result in an increase in the carbon dioxide (CO2) concentration in the atmosphere. As it will continue to play a vital role in meeting current and future needs, significant efforts have been made to address this problem. Over the past few years, extensive studies on the development of heterogeneous catalysts for CO2 methanation have been investigated and reported in the literatures. In this paper, a comprehensive overview of methanation research studies over lanthanide oxide catalysts has been reviewed. The utilisation of lanthanide oxides as CO2 methanation catalysts performed an outstanding result of CO2 conversion and improvised the conversion of acidity from CO2 gas to CH4 gas. The innovations of catalysts towards the reaction were discussed in details including the influence of preparation methods, the structure-activity relationships as well as the mechanism with the purpose of outlining the pathways for future development of the methanation process.
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Affiliation(s)
- Salmiah Jamal Mat Rosid
- Unisza Science and Medicine Foundation Centre, Universiti Sultan Zainal Abidin, Gong Badak Campus, 21300, Kuala Nerus, Terengganu, Malaysia.
| | - Susilawati Toemen
- Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia (UTM), 81310, Skudai, Johor, Malaysia.
| | - Malik Muhammad Asif Iqbal
- Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia (UTM), 81310, Skudai, Johor, Malaysia
| | - Wan Azelee Wan Abu Bakar
- Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia (UTM), 81310, Skudai, Johor, Malaysia
| | - Wan Nur Aini Wan Mokhtar
- Centre for Advanced Materials and Renewable Resources, Faculty of Science & Technology, Universiti Kebangsaan Malaysia, 43600, Bangi, Selangor, Malaysia
| | - Md Maniruzzaman A Aziz
- Faculty of Civil Engineering, Universiti Teknologi Malaysia (UTM), 81310, Skudai, Johor, Malaysia
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42
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Transport Properties and High Temperature Raman Features of Heavily Gd-Doped Ceria. ENERGIES 2019. [DOI: 10.3390/en12214148] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Transport and structural properties of heavily doped ceria can reveal subtle details of the interplay between conductivity and defects aggregation in this material, widely studied as solid electrolyte in solid oxide fuel cells. The ionic conductivity of heavily Gd-doped ceria samples (Ce1−xGdxO2−x/2 with x ranging between 0.31 and 0.49) was investigated by impedance spectroscopy in the 600–1000 K temperature range. A slope change was found in the Arrhenius plot at ~723 K for samples with x = 0.31 and 0.34, namely close to the compositional boundary of the CeO2-based solid solution. The described discontinuity, giving rise to two different activation energies, points at the existence of a threshold temperature, below which oxygen vacancies are blocked, and above which they become free to move through the lattice. This conclusion is well supported by Raman spectroscopy, due to the discontinuity revealed in the Raman shift trend versus temperature of the signal related to defects aggregates which hinder the vacancies movement. This evidence, observable in samples with x = 0.31 and 0.34 above ~750 K, accounts for a weakening of Gd–O bonds within blocking microdomains, which is compatible with the existence of a lower activation energy above the threshold temperature.
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43
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Vrijburg WL, van Helden JWA, Parastaev A, Groeneveld E, Pidko EA, Hensen EJM. Ceria–zirconia encapsulated Ni nanoparticles for CO 2 methanation. Catal Sci Technol 2019. [DOI: 10.1039/c9cy01428d] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Preparing Ni catalysts on ceria–zirconia via colloidal Ni nanoparticle encapsulation yields excellent particle size control, superior catalytic activity, and enhanced stability compared to conventional impregnation techniques.
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Affiliation(s)
- Wilbert L. Vrijburg
- Laboratory of Inorganic Materials and Catalysis
- Schuit Institute of Catalysis
- Eindhoven University of Technology
- Eindhoven
- The Netherlands
| | - Jolanda W. A. van Helden
- Laboratory of Inorganic Materials and Catalysis
- Schuit Institute of Catalysis
- Eindhoven University of Technology
- Eindhoven
- The Netherlands
| | - Alexander Parastaev
- Laboratory of Inorganic Materials and Catalysis
- Schuit Institute of Catalysis
- Eindhoven University of Technology
- Eindhoven
- The Netherlands
| | | | - Evgeny A. Pidko
- Laboratory of Inorganic Materials and Catalysis
- Schuit Institute of Catalysis
- Eindhoven University of Technology
- Eindhoven
- The Netherlands
| | - Emiel J. M. Hensen
- Laboratory of Inorganic Materials and Catalysis
- Schuit Institute of Catalysis
- Eindhoven University of Technology
- Eindhoven
- The Netherlands
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