View in EDS

Impact of barium and lanthanum incorporation to supported Pt and Rh on α-Al2O3 in the dry reforming of methane

Saved in:
Bibliographic Details
Title: Impact of barium and lanthanum incorporation to supported Pt and Rh on α-Al2O3 in the dry reforming of methane
Authors: Ghelamallah, Madani1 gh_madani@hotmail.com, Granger, Pascal2 pascal.granger@univ-lille1.fr
Source: Fuel (0016-2361). Jul2012, Vol. 97, p269-276. 8p.
Subjects: Catalyst supports, Aluminum oxide, Barium, Lanthanum, Methane, Carbon dioxide, Transition metal catalysts, Activation energy
Abstract: Abstract: The dry reforming of CH4 by CO2 has been studied, between 300 and 900°C, over monometallic platinum and rhodium based catalysts supported on α-Al2O3 doped with La2O3 and BaO. Those catalysts were prepared by conventional wet impregnation and characterized by various physicochemical techniques (nitrogen adsorption, X-ray diffraction, XPS analysis and H2-temperature-programmed experiments). It was found that Pt and Rh incorporation leads to different types of interactions with La and Ba-modified α-Al2O3. As observed, Pt would preferentially interact with Ba inducing an inhibiting effect on the rate of the CH4/CO2 reaction reflected by a significant increase in the apparent activation energy. On the other hand, the preferential interaction of Rh with lanthanum oxide after Ba incorporation leads to the preservation of the catalyst activity. Such changes in catalytic properties have been discussed in the light of surface characterization and previous mechanistic information related to the occurrence of a bi-functional mechanism involving the metal/support interface. [Copyright &y& Elsevier]
Copyright of Fuel (0016-2361) 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
Header DbId: egs
DbLabel: Engineering Source
An: 75183751
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
IllustrationInfo
Items – Name: Title
  Label: Title
  Group: Ti
  Data: Impact of barium and lanthanum incorporation to supported Pt and Rh on α-Al<subscript>2</subscript>O<subscript>3</subscript> 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="%22Fuel+%280016-2361%29%22">Fuel (0016-2361)</searchLink>. Jul2012, Vol. 97, p269-276. 8p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Catalyst+supports%22">Catalyst supports</searchLink><br /><searchLink fieldCode="DE" term="%22Aluminum+oxide%22">Aluminum oxide</searchLink><br /><searchLink fieldCode="DE" term="%22Barium%22">Barium</searchLink><br /><searchLink fieldCode="DE" term="%22Lanthanum%22">Lanthanum</searchLink><br /><searchLink fieldCode="DE" term="%22Methane%22">Methane</searchLink><br /><searchLink fieldCode="DE" term="%22Carbon+dioxide%22">Carbon dioxide</searchLink><br /><searchLink fieldCode="DE" term="%22Transition+metal+catalysts%22">Transition metal catalysts</searchLink><br /><searchLink fieldCode="DE" term="%22Activation+energy%22">Activation energy</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Abstract: The dry reforming of CH4 by CO2 has been studied, between 300 and 900°C, over monometallic platinum and rhodium based catalysts supported on α-Al2O3 doped with La2O3 and BaO. Those catalysts were prepared by conventional wet impregnation and characterized by various physicochemical techniques (nitrogen adsorption, X-ray diffraction, XPS analysis and H2-temperature-programmed experiments). It was found that Pt and Rh incorporation leads to different types of interactions with La and Ba-modified α-Al2O3. As observed, Pt would preferentially interact with Ba inducing an inhibiting effect on the rate of the CH4/CO2 reaction reflected by a significant increase in the apparent activation energy. On the other hand, the preferential interaction of Rh with lanthanum oxide after Ba incorporation leads to the preservation of the catalyst activity. Such changes in catalytic properties have been discussed in the light of surface characterization and previous mechanistic information related to the occurrence of a bi-functional mechanism involving the metal/support interface. [Copyright &y& Elsevier]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Fuel (0016-2361) 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.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=75183751
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1016/j.fuel.2012.02.068
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 8
        StartPage: 269
    Subjects:
      – SubjectFull: Catalyst supports
        Type: general
      – SubjectFull: Aluminum oxide
        Type: general
      – SubjectFull: Barium
        Type: general
      – SubjectFull: Lanthanum
        Type: general
      – SubjectFull: Methane
        Type: general
      – SubjectFull: Carbon dioxide
        Type: general
      – SubjectFull: Transition metal catalysts
        Type: general
      – SubjectFull: Activation energy
        Type: general
    Titles:
      – TitleFull: Impact of barium and lanthanum incorporation to supported Pt and Rh on α-Al2O3 in the dry reforming of methane
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Ghelamallah, Madani
      – PersonEntity:
          Name:
            NameFull: Granger, Pascal
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 01
              M: 07
              Text: Jul2012
              Type: published
              Y: 2012
          Identifiers:
            – Type: issn-print
              Value: 00162361
          Numbering:
            – Type: volume
              Value: 97
          Titles:
            – TitleFull: Fuel (0016-2361)
              Type: main
ResultId 1