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Magnesium as a Methanation Suppressor for Iron- and Cobalt-Based Oxide Catalysts during the Preferential Oxidation of Carbon Monoxide. Catalysts 2022. [DOI: 10.3390/catal12020118] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
The preferential oxidation of CO (CO-PrOx) to CO2 is an effective catalytic process for purifying the H2 utilized in proton-exchange membrane fuel cells for power generation. Our current work reports on the synthesis, characterization and CO-PrOx performance evaluation of unsubstituted and magnesium-substituted iron- and cobalt-based oxide catalysts (i.e., Fe3O4, Co3O4, MgFe2O4 and MgCo2O4). More specifically, the ability of Mg to stabilize the MgFe2O4 and MgCo2O4 structures, as well as suppress CH4 formation during CO-PrOx was of great importance in this study. The cobalt-based oxide catalysts achieved higher CO2 yields than the iron-based oxide catalysts below 225 °C. The highest CO2 yield (100%) was achieved over Co3O4 between 150 and 175 °C, however, undesired CH4 formation was only observed over this catalyst due to the formation of bulk fcc and hcp Co0 between 200 and 250 °C. The presence of Mg in MgCo2O4 suppressed CH4 formation, with the catalyst only reducing to a CoO-type phase (possibly containing Mg). The iron-based oxide catalysts did not undergo bulk reduction and did not produce CH4 under reaction conditions. In conclusion, our study has demonstrated the beneficial effect of Mg in stabilizing the active iron- and cobalt-based oxide structures, and in suppressing CH4 formation during CO-PrOx.
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Abstract
CoFe2O4 prepared by sol-gel has been examined with respect to its catalytic performance for preferential CO oxidation in a H2-rich stream. In turn, the promoting effects of incorporation of Ce, Co, Cu, and Zr by impregnation on the surface of CoFe2O4 on the process are examined as well. The catalysts have been characterized by N2 adsorption, X-ray diffraction (XRD), high resolution transmission electron microscopy (HRTEM), temperature programmed reduction (TPR), and X-ray photoelectron spectra (XPS), as well as diffuse reflectance infrared DRIFTS under reaction conditions with the aim of establishing structure/activity relationships for the mentioned catalyst/process. It is shown that while the presence of the various metals on CoFe2O4 hinders a low temperature CO oxidation process, it appreciably enhances the activity above 125 °C. This is basically attributed to the surface modifications, i.e. cobalt oxidation, induced in CoFe2O4 upon introduction of the metals. In turn, no methanation activity is observed in any case except for the copper-containing catalyst, in which achievement of reduced states of cobalt appears most favored.
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Rod-like and mushroom-like Co3O4–CeO2 catalysts derived from Ce-1,3,5-benzene tricarboxylic acid for CO preferential oxidation: effects of compositions and morphology. REACTION KINETICS MECHANISMS AND CATALYSIS 2019. [DOI: 10.1007/s11144-019-01693-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Serhal CA, Mallard I, Poupin C, Labaki M, Siffert S, Cousin R. Effect of Microwave Irradiation Parameters on Co/Fe Hydrotalcite Nanocatalysts for the Total Oxidation of VOCs. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201801528] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Cynthia Abou Serhal
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV, E.A. 4492), MREI Université du Littoral Côte d'Opale (ULCO) ‐59140 Dunkerque France
- Laboratory of Physical Chemistry of Materials (LCPM)/PR2N, Faculty of Sciences Lebanese University 90656, Jdeidet El Metn Lebanon
| | - Isabelle Mallard
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV, E.A. 4492), MREI Université du Littoral Côte d'Opale (ULCO) ‐59140 Dunkerque France
| | - Christophe Poupin
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV, E.A. 4492), MREI Université du Littoral Côte d'Opale (ULCO) ‐59140 Dunkerque France
| | - Madona Labaki
- Laboratory of Physical Chemistry of Materials (LCPM)/PR2N, Faculty of Sciences Lebanese University 90656, Jdeidet El Metn Lebanon
| | - Stéphane Siffert
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV, E.A. 4492), MREI Université du Littoral Côte d'Opale (ULCO) ‐59140 Dunkerque France
| | - Renaud Cousin
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV, E.A. 4492), MREI Université du Littoral Côte d'Opale (ULCO) ‐59140 Dunkerque France
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Pan D, Ge S, Zhao J, Tian J, Shao Q, Guo L, Mai X, Wu T, Murugadoss V, Liu H, Ding T, Angaiah S, Guo Z. Synthesis and Characterization of ZnNiIn Layered Double Hydroxides Derived Mixed Metal Oxides with Highly Efficient Photoelectrocatalytic Activities. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b04829] [Citation(s) in RCA: 86] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Duo Pan
- College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - Shengsong Ge
- College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - Junkai Zhao
- College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, China
- Integrated Composites Laboratory (ICL), Department of Chemical & Biomolecular Engineering, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Jiangyang Tian
- College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - Qian Shao
- College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - Lin Guo
- College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - Xianmin Mai
- School of Urban Planning and Architecture, Southwest Minzu University, Chengdu 610041, China
| | - Tingting Wu
- Department of Civil and Environmental Engineering, The University of Alabama, Huntsville, Alabama 35899, United States
| | - Vignesh Murugadoss
- Integrated Composites Laboratory (ICL), Department of Chemical & Biomolecular Engineering, University of Tennessee, Knoxville, Tennessee 37996, United States
- Electrochemical Energy Research Lab, Centre for Nanoscience and Technology, Pondicherry University, Puducherry 605 014, India
| | - Hu Liu
- Integrated Composites Laboratory (ICL), Department of Chemical & Biomolecular Engineering, University of Tennessee, Knoxville, Tennessee 37996, United States
- Key Laboratory of Materials Processing and Mold (Zhengzhou University), Ministry of Education; National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou 450002, China
| | - Tao Ding
- College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China
| | - Subramania Angaiah
- Electrochemical Energy Research Lab, Centre for Nanoscience and Technology, Pondicherry University, Puducherry 605 014, India
| | - Zhanhu Guo
- Integrated Composites Laboratory (ICL), Department of Chemical & Biomolecular Engineering, University of Tennessee, Knoxville, Tennessee 37996, United States
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Mindru I, Gingasu D, Diamandescu L, Patron L, Marinescu G, Culita DC, Calderon-Moreno JM, Preda S, Oprea O, Parvulescu V. CoFe2−xCrxO4 ferrites: synthesis, characterization and their catalytic activity. CHEMICAL PAPERS 2018. [DOI: 10.1007/s11696-018-0553-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Pan D, Ge S, Zhao J, Shao Q, Guo L, Zhang X, Lin J, Xu G, Guo Z. Synthesis, characterization and photocatalytic activity of mixed-metal oxides derived from NiCoFe ternary layered double hydroxides. Dalton Trans 2018; 47:9765-9778. [DOI: 10.1039/c8dt01045e] [Citation(s) in RCA: 101] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Ternary NiCoFe mixed-metal oxides have demonstrated higher photoelectrocatalytic activity in degrading methylene blue (MB).
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Affiliation(s)
- Duo Pan
- College of Chemical and Environmental Engineering
- Shandong University of Science and Technology
- Qingdao 266590
- PR China
| | - Shengsong Ge
- College of Chemical and Environmental Engineering
- Shandong University of Science and Technology
- Qingdao 266590
- PR China
| | - Junkai Zhao
- College of Chemical and Environmental Engineering
- Shandong University of Science and Technology
- Qingdao 266590
- PR China
- Integrated Composites Laboratory (ICL)
| | - Qian Shao
- College of Chemical and Environmental Engineering
- Shandong University of Science and Technology
- Qingdao 266590
- PR China
| | - Lin Guo
- College of Chemical and Environmental Engineering
- Shandong University of Science and Technology
- Qingdao 266590
- PR China
| | - Xincheng Zhang
- College of Chemical and Environmental Engineering
- Shandong University of Science and Technology
- Qingdao 266590
- PR China
| | - Jing Lin
- School of Chemistry and Chemical Engineering
- Guangzhou University
- Guangzhou 510006
- P.R. China
| | - Gaofeng Xu
- College of Chemical Engineering
- Southwest Forestry University
- Kunming 650224
- China
| | - Zhanhu Guo
- Integrated Composites Laboratory (ICL)
- Department of Chemical & Biomolecular Engineering
- University of Tennessee
- Knoxville
- USA
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Dey S, Dhal GC, Prasad R, Mohan D. Effect of nitrate metal (Ce, Cu, Mn and Co) precursors for the total oxidation of carbon monoxide. RESOURCE-EFFICIENT TECHNOLOGIES 2017. [DOI: 10.1016/j.reffit.2016.12.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Shen Y, Yu J, Xiao X, Guo X, Mao D, Huang H, Lu G. Polymer nanofilm-coated catalysis: An approach for enhancing water-resistance of Co-Fe oxide nano-catalysts under moisture-rich condition. J Catal 2017. [DOI: 10.1016/j.jcat.2017.06.022] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Sultana S, Kishore D, Kuniyil M, Khan M, Siddiqui MRH, Alwarthan A, Prasad K, Ahmad N, Adil SF. Promoting effects of thoria on the nickel-manganese mixed oxide catalysts for the aerobic oxidation of benzyl alcohol. ARAB J CHEM 2017. [DOI: 10.1016/j.arabjc.2017.01.017] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Said AEAA, Abd El-Wahab MM, Soliman SA, Goda MN. Synthesis and characterization of mesoporous Fe–Co mixed oxide nanocatalysts for low temperature CO oxidation. PROCESS SAFETY AND ENVIRONMENTAL PROTECTION 2016; 102:370-384. [DOI: 10.1016/j.psep.2016.04.015] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
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Preparation, characterization and enhanced photocatalytic activities of zinc oxide nano rods/silicon carbide composite under UV and visible light irradiations. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.molcata.2015.10.020] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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