Supported-induced effect on the catalytic properties of Rh and Pt-Rh particles deposited on La2O3 and mixed α-Al2O3-La2O3 in the dry reforming of methane.
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| Title: | Supported-induced effect on the catalytic properties of Rh and Pt-Rh particles deposited on La2O3 and mixed α-Al2O3-La2O3 in the dry reforming of methane. |
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| Authors: | Ghelamallah, Madani1 gh_madani@hotmail.com, Granger, Pascal2 pascal.granger@univ-lille1.fr |
| Source: | Applied Catalysis A: General. Sep2014, Vol. 485, p172-180. 9p. |
| Subjects: | Rhodium catalysts, Platinum-rhodium alloys, Lanthanum oxide, Aluminum oxide, Methane, Catalytic reforming |
| Abstract: | Rhodium and platinum-rhodium based catalysts supported on La 2 O 3 and Al 2 O 3 doped with La 2 O 3 were investigated in the dry reforming of methane. The textural and structural properties were studied on calcined, reduced and used catalysts from nitrogen physisorption, X-ray diffraction, XPS, SEM, H 2 - and O 2 -temperature-programmed experiments. Rh is intrinsically more active than Pt independently of the support composition. Different types of interactions occur when Rh is incorporated in Pt on La 2 O 3 and La-modified α-Al 2 O 3 supports with the observations of synergistic effects on the activity of Pt-Rh/Al 2 O 3 -La 2 O 3 for methane conversion. Correlations between catalytic properties with structural and surface properties have been tentatively established and are discussed. A detrimental effect of alloyed Pt-Rh particles on La 2 O 3 and a beneficial effect on the catalytic activity of Pt-Rh/Al 2 O 3 -La 2 O 3 due to the formation of possible composite microstructures combining noble metals and the elements of the support is reported. [ABSTRACT FROM AUTHOR] |
| Copyright of Applied Catalysis A: General is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 98140627 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Supported-induced effect on the catalytic properties of Rh and Pt-Rh particles deposited on La2O3 and mixed α-Al2O3-La2O3 in the dry reforming of methane. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Ghelamallah%2C+Madani%22">Ghelamallah, Madani</searchLink><relatesTo>1</relatesTo><i> gh_madani@hotmail.com</i><br /><searchLink fieldCode="AR" term="%22Granger%2C+Pascal%22">Granger, Pascal</searchLink><relatesTo>2</relatesTo><i> pascal.granger@univ-lille1.fr</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Applied+Catalysis+A%3A+General%22">Applied Catalysis A: General</searchLink>. Sep2014, Vol. 485, p172-180. 9p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Rhodium+catalysts%22">Rhodium catalysts</searchLink><br /><searchLink fieldCode="DE" term="%22Platinum-rhodium+alloys%22">Platinum-rhodium alloys</searchLink><br /><searchLink fieldCode="DE" term="%22Lanthanum+oxide%22">Lanthanum oxide</searchLink><br /><searchLink fieldCode="DE" term="%22Aluminum+oxide%22">Aluminum oxide</searchLink><br /><searchLink fieldCode="DE" term="%22Methane%22">Methane</searchLink><br /><searchLink fieldCode="DE" term="%22Catalytic+reforming%22">Catalytic reforming</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Rhodium and platinum-rhodium based catalysts supported on La 2 O 3 and Al 2 O 3 doped with La 2 O 3 were investigated in the dry reforming of methane. The textural and structural properties were studied on calcined, reduced and used catalysts from nitrogen physisorption, X-ray diffraction, XPS, SEM, H 2 - and O 2 -temperature-programmed experiments. Rh is intrinsically more active than Pt independently of the support composition. Different types of interactions occur when Rh is incorporated in Pt on La 2 O 3 and La-modified α-Al 2 O 3 supports with the observations of synergistic effects on the activity of Pt-Rh/Al 2 O 3 -La 2 O 3 for methane conversion. Correlations between catalytic properties with structural and surface properties have been tentatively established and are discussed. A detrimental effect of alloyed Pt-Rh particles on La 2 O 3 and a beneficial effect on the catalytic activity of Pt-Rh/Al 2 O 3 -La 2 O 3 due to the formation of possible composite microstructures combining noble metals and the elements of the support is reported. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Applied Catalysis A: General is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.apcata.2014.07.021 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 9 StartPage: 172 Subjects: – SubjectFull: Rhodium catalysts Type: general – SubjectFull: Platinum-rhodium alloys Type: general – SubjectFull: Lanthanum oxide Type: general – SubjectFull: Aluminum oxide Type: general – SubjectFull: Methane Type: general – SubjectFull: Catalytic reforming Type: general Titles: – TitleFull: Supported-induced effect on the catalytic properties of Rh and Pt-Rh particles deposited on La2O3 and mixed α-Al2O3-La2O3 in the dry reforming of methane. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Ghelamallah, Madani – PersonEntity: Name: NameFull: Granger, Pascal IsPartOfRelationships: – BibEntity: Dates: – D: 05 M: 09 Text: Sep2014 Type: published Y: 2014 Identifiers: – Type: issn-print Value: 0926860X Numbering: – Type: volume Value: 485 Titles: – TitleFull: Applied Catalysis A: General Type: main |
| ResultId | 1 |
