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Amairia C, Fessi S, Mhamdi M, Ghorbel A, Llorca J. Influence of the drying mode of support on the properties of Pd/Al 2O 3-ZrO 2 materials used for methane combustion. Sci Rep 2023; 13:20298. [PMID: 37985717 PMCID: PMC10662462 DOI: 10.1038/s41598-023-47630-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Accepted: 11/16/2023] [Indexed: 11/22/2023] Open
Abstract
This work constitutes a new trial to enhance the properties of palladium supported on alumina modified with zirconium used as catalysts for methane combustion. The effect of the support drying mode is studied. For this aim, Al2O3-ZrO2 binary oxides with zirconium loading of 2 and 5% in weight were prepared using sol-gel process then dried under ordinary or supercritical conditions. Palladium with a loading of 0.5% was deposited on the support by wet impregnation. Several techniques have been used to investigate differences between the two types of the derived catalysts.
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Affiliation(s)
- C Amairia
- Laboratoire de Chimie des Matériaux et Catalyse, Département de Chimie, Faculté des Sciences de Tunis, Université Tunis-El Manar, Campus Universitaire, 2092, Tunis, Tunisia.
- Chemistry Department, College of Science, Al Baha University, Al Bahah, 65779, Saudi Arabia.
| | - S Fessi
- Laboratoire de Chimie des Matériaux et Catalyse, Département de Chimie, Faculté des Sciences de Tunis, Université Tunis-El Manar, Campus Universitaire, 2092, Tunis, Tunisia
| | - M Mhamdi
- Laboratory for the Application of Materials to the Environment, Water and Energy LAMEEE, Faculty of Sciences Gafsa, University of Gafsa, 2112, Gafsa, Tunisia
- Chemistry Department, College of Science and Arts Al Makhwah, Al Baha University, Al Bahah, Saudi Arabia
| | - A Ghorbel
- Laboratoire de Chimie des Matériaux et Catalyse, Département de Chimie, Faculté des Sciences de Tunis, Université Tunis-El Manar, Campus Universitaire, 2092, Tunis, Tunisia
| | - J Llorca
- Universitat Politècnica de Catalunya, Barcelone, Spain
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Kancharla S, Sasaki K. Selective extraction of precious metals from simulated automotive catalyst waste and its conversion to carbon supported PdPt nanoparticle catalyst. Colloids Surf A Physicochem Eng Asp 2023. [DOI: 10.1016/j.colsurfa.2023.131179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
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3
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David TM, Dev PR, Wilson P, Sagayaraj P, Mathews T. A critical review on the variations in anodization parameters toward microstructural formation of TiO
2
nanotubes. ELECTROCHEMICAL SCIENCE ADVANCES 2022. [DOI: 10.1002/elsa.202100083] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Affiliation(s)
- T. Manovah David
- Thin Films and Coatings Section Surface Nanoscience Division Materials Science Group Indira Gandhi Centre for Atomic Research (IGCAR) Kalpakkam India
| | - Priya Ranjan Dev
- Department of Chemistry Madras Christian College (Autonomous) University of Madras Chennai India
| | - P. Wilson
- Department of Chemistry Madras Christian College (Autonomous) University of Madras Chennai India
| | - P. Sagayaraj
- Department of Physics, Loyola College (Autonomous) Chennai India
| | - Tom Mathews
- Thin Films and Coatings Section Surface Nanoscience Division Materials Science Group Indira Gandhi Centre for Atomic Research (IGCAR) Kalpakkam India
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4
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Shun K, Mori K, Masuda S, Hashimoto N, Hinuma Y, Kobayashi H, Yamashita H. Revealing hydrogen spillover pathways in reducible metal oxides. Chem Sci 2022; 13:8137-8147. [PMID: 35919430 PMCID: PMC9278487 DOI: 10.1039/d2sc00871h] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Accepted: 06/08/2022] [Indexed: 12/15/2022] Open
Abstract
Hydrogen spillover, the migration of dissociated hydrogen atoms from noble metals to their support materials, is a ubiquitous phenomenon and is widely utilized in heterogeneous catalysis and hydrogen storage materials. However, in-depth understanding of the migration of spilled hydrogen over different types of supports is still lacking. Herein, hydrogen spillover in typical reducible metal oxides, such as TiO2, CeO2, and WO3, was elucidated by combining systematic characterization methods involving various in situ techniques, kinetic analysis, and density functional theory calculations. TiO2 and CeO2 were proven to be promising platforms for the synthesis of non-equilibrium RuNi binary solid solution alloy nanoparticles displaying a synergistic promotional effect in the hydrolysis of ammonia borane. Such behaviour was driven by the simultaneous reduction of both metal cations under a H2 atmosphere over TiO2 and CeO2, in which hydrogen spillover favorably occurred over their surfaces rather than within their bulk phases. Conversely, hydrogen atoms were found to preferentially migrate within the bulk prior to the surface over WO3. Thus, the reductions of both metal cations occurred individually on WO3, which resulted in the formation of segregated NPs with no activity enhancement. The hydrogen spillover pathway in typical reducible metal oxides, such as TiO2, CeO2, and WO3, was investigated by combining various in situ characterization techniques, kinetic analysis, and density functional theory calculations.![]()
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Affiliation(s)
- Kazuki Shun
- Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Kohsuke Mori
- Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
- Unit of Elements Strategy Initiative for Catalysts Batteries (ESICB), Kyoto University, Katsura, Kyoto 615-8520, Japan
- Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI), Osaka University, Suita, Osaka 565-0871, Japan
| | - Shinya Masuda
- Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Naoki Hashimoto
- Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Yoyo Hinuma
- Department of Energy and Environment, National Institute of Advanced Industrial Science and Technology (AIST), 1-8-31, Midorigaoka, Ikeda, Osaka 563-8577, Japan
| | - Hisayoshi Kobayashi
- Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto, 606-8585, Japan
| | - Hiromi Yamashita
- Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
- Unit of Elements Strategy Initiative for Catalysts Batteries (ESICB), Kyoto University, Katsura, Kyoto 615-8520, Japan
- Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI), Osaka University, Suita, Osaka 565-0871, Japan
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Mondal A, Hazra A, Chakrabarty J, Murmu NC, Banerjee P. A Harmonized Applied and Theoretical Exploration for Nanomolar Level Recognition of Perilous F
−
and CN
−
by Multichannel Chemosensor: Proposition of Hg
2+
‐Mediated Logic Gate Imitator. ChemistrySelect 2020. [DOI: 10.1002/slct.202002964] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Amita Mondal
- Surface Engineering & Tribology Group CSIR-Central Mechanical Engineering Research Institute Mahatma Gandhi Avenue Durgapur 713209 India
- Department of Chemistry National Institute of Technology Mahatma Gandhi Avenue Durgapur 713209, West Bengal India
| | - Abhijit Hazra
- Surface Engineering & Tribology Group CSIR-Central Mechanical Engineering Research Institute Mahatma Gandhi Avenue Durgapur 713209 India
- Academy of Scientific and Innovative Research (AcSIR) Mahatma Gandhi Avenue Ghaziabad 201002, Uttar Pradesh West Bengal India
| | - Jitamanyu Chakrabarty
- Department of Chemistry National Institute of Technology Mahatma Gandhi Avenue Durgapur 713209, West Bengal India
| | - Naresh C. Murmu
- Surface Engineering & Tribology Group CSIR-Central Mechanical Engineering Research Institute Mahatma Gandhi Avenue Durgapur 713209 India
- Academy of Scientific and Innovative Research (AcSIR) Mahatma Gandhi Avenue Ghaziabad 201002, Uttar Pradesh West Bengal India
| | - Priyabrata Banerjee
- Surface Engineering & Tribology Group CSIR-Central Mechanical Engineering Research Institute Mahatma Gandhi Avenue Durgapur 713209 India
- Academy of Scientific and Innovative Research (AcSIR) Mahatma Gandhi Avenue Ghaziabad 201002, Uttar Pradesh West Bengal India
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