View in EDS

Investigating the influence of Pd situation (as core or shell) in synthesized catalyst for ORR in PEMFC.

Saved in:
Bibliographic Details
Title: Investigating the influence of Pd situation (as core or shell) in synthesized catalyst for ORR in PEMFC.
Authors: Javaheri, M.1 javaheri54@yahoo.com
Source: International Journal of Hydrogen Energy. Jun2015, Vol. 40 Issue 20, p6661-6671. 11p.
Subjects: Palladium carbonyls, Inorganic synthesis, Proton exchange membrane fuel cells, Platinum catalysts, Chemical sample preparation
Abstract: Two series of Pd@Pt (Pd as core and Pt as shell) and Ru@Pd–Pt (Ru as core and Pt–Pd as shell) core-shell structures with different molar ratio of metals on Vulcan were prepared by a successive reduction procedure. The effect of Pd as core (Pt as shell) is compared with the effect of Pd–Pt alloy as shell (Ru as core) for oxygen reduction reaction (ORR). The physical properties of the synthesized catalysts are characterized by inductive coupled plasma (ICP), X-ray diffraction (XRD), transmission electron microscopy (TEM). The results of half-cell testing indicated that the synthesized catalysts activity for ORR is better than commercial Pt/C. Despite low catalyst loading (0.3 mg.cm −1 ), polarization behavior in the single cell testing also suggests that the Ru@Pd–Pt has a much better performance than the Pd@Pt catalyst. This good efficiency can be attributed to the effect of Ru on electronic properties of Pt and the positive effect of Pd as alloyed with Pt, increasing adsorption and reduction of O 2 on Pt–Pd. [ABSTRACT FROM AUTHOR]
Copyright of International Journal of Hydrogen Energy is the property of Pergamon Press - An Imprint of Elsevier Science 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: 102317267
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
IllustrationInfo
Items – Name: Title
  Label: Title
  Group: Ti
  Data: Investigating the influence of Pd situation (as core or shell) in synthesized catalyst for ORR in PEMFC.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Javaheri%2C+M%2E%22">Javaheri, M.</searchLink><relatesTo>1</relatesTo><i> javaheri54@yahoo.com</i>
– Name: TitleSource
  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Hydrogen+Energy%22">International Journal of Hydrogen Energy</searchLink>. Jun2015, Vol. 40 Issue 20, p6661-6671. 11p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Palladium+carbonyls%22">Palladium carbonyls</searchLink><br /><searchLink fieldCode="DE" term="%22Inorganic+synthesis%22">Inorganic synthesis</searchLink><br /><searchLink fieldCode="DE" term="%22Proton+exchange+membrane+fuel+cells%22">Proton exchange membrane fuel cells</searchLink><br /><searchLink fieldCode="DE" term="%22Platinum+catalysts%22">Platinum catalysts</searchLink><br /><searchLink fieldCode="DE" term="%22Chemical+sample+preparation%22">Chemical sample preparation</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Two series of Pd@Pt (Pd as core and Pt as shell) and Ru@Pd–Pt (Ru as core and Pt–Pd as shell) core-shell structures with different molar ratio of metals on Vulcan were prepared by a successive reduction procedure. The effect of Pd as core (Pt as shell) is compared with the effect of Pd–Pt alloy as shell (Ru as core) for oxygen reduction reaction (ORR). The physical properties of the synthesized catalysts are characterized by inductive coupled plasma (ICP), X-ray diffraction (XRD), transmission electron microscopy (TEM). The results of half-cell testing indicated that the synthesized catalysts activity for ORR is better than commercial Pt/C. Despite low catalyst loading (0.3 mg.cm −1 ), polarization behavior in the single cell testing also suggests that the Ru@Pd–Pt has a much better performance than the Pd@Pt catalyst. This good efficiency can be attributed to the effect of Ru on electronic properties of Pt and the positive effect of Pd as alloyed with Pt, increasing adsorption and reduction of O 2 on Pt–Pd. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of International Journal of Hydrogen Energy is the property of Pergamon Press - An Imprint of Elsevier Science 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=102317267
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1016/j.ijhydene.2015.03.030
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 11
        StartPage: 6661
    Subjects:
      – SubjectFull: Palladium carbonyls
        Type: general
      – SubjectFull: Inorganic synthesis
        Type: general
      – SubjectFull: Proton exchange membrane fuel cells
        Type: general
      – SubjectFull: Platinum catalysts
        Type: general
      – SubjectFull: Chemical sample preparation
        Type: general
    Titles:
      – TitleFull: Investigating the influence of Pd situation (as core or shell) in synthesized catalyst for ORR in PEMFC.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Javaheri, M.
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 01
              M: 06
              Text: Jun2015
              Type: published
              Y: 2015
          Identifiers:
            – Type: issn-print
              Value: 03603199
          Numbering:
            – Type: volume
              Value: 40
            – Type: issue
              Value: 20
          Titles:
            – TitleFull: International Journal of Hydrogen Energy
              Type: main
ResultId 1