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Synthesis and characterization of nanoparticulate La0.6Sr0.4CoO3− δ cathodes for thin-film solid oxide fuel cells

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Title: Synthesis and characterization of nanoparticulate La0.6Sr0.4CoO3− δ cathodes for thin-film solid oxide fuel cells
Authors: Benel, Cahit1,2,3 cbenel@nano.tu-darmstadt.de, Darbandi, Azad J.1,2, Djenadic, Ruzica1,2,4, Evans, Anna5, Tölke, René5, Prestat, Michel5, Hahn, Horst1,2
Source: Journal of Power Sources. May2013, Vol. 229, p258-264. 7p.
Subjects: Lanthanum compounds, Solid oxide fuel cells, Nanoparticle synthesis, Cathodes, Thin films, Nanocrystals, Metal powders, Microstructure
Abstract: Abstract: Nanocrystalline La0.6Sr0.4CoO3− δ (LSC) powder with an ultrafine microstructure is synthesized via salt-assisted spray pyrolysis and subsequently stabilized in water-based dispersions. Nanoparticulate cathode thin films of LSC and LSC–GDC (gadolinium doped ceria) nanocomposites (with 10–40 wt% of GDC) are prepared via single step spin coating on yttria stabilized zirconia (YSZ) substrates. In order to prevent the chemical reaction between the cathode and the electrolyte, a thin buffer layer of GDC is deposited using spin coating on the YSZ substrates. The electrochemical performance of the thin film cathodes is measured by impedance spectroscopy on symmetrical cells in the temperature range of 450–650 °C. LSC cathode thin films (250 nm thick) with 30 wt% GDC content exhibit the lowest area specific resistance (ASR) values of 0.32, 0.78 and 2.04 Ω cm2 in ambient air at 650, 600 and 550 °C, respectively. [Copyright &y& Elsevier]
Copyright of Journal of Power Sources 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
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Header DbId: egs
DbLabel: Engineering Source
An: 85174552
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Data: Synthesis and characterization of nanoparticulate La<subscript>0.6</subscript>Sr<subscript>0.4</subscript>CoO<subscript>3−</subscript> <subscript> δ </subscript> cathodes for thin-film solid oxide fuel cells
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  Data: <searchLink fieldCode="AR" term="%22Benel%2C+Cahit%22">Benel, Cahit</searchLink><relatesTo>1,2,3</relatesTo><i> cbenel@nano.tu-darmstadt.de</i><br /><searchLink fieldCode="AR" term="%22Darbandi%2C+Azad+J%2E%22">Darbandi, Azad J.</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22Djenadic%2C+Ruzica%22">Djenadic, Ruzica</searchLink><relatesTo>1,2,4</relatesTo><br /><searchLink fieldCode="AR" term="%22Evans%2C+Anna%22">Evans, Anna</searchLink><relatesTo>5</relatesTo><br /><searchLink fieldCode="AR" term="%22Tölke%2C+René%22">Tölke, René</searchLink><relatesTo>5</relatesTo><br /><searchLink fieldCode="AR" term="%22Prestat%2C+Michel%22">Prestat, Michel</searchLink><relatesTo>5</relatesTo><br /><searchLink fieldCode="AR" term="%22Hahn%2C+Horst%22">Hahn, Horst</searchLink><relatesTo>1,2</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Power+Sources%22">Journal of Power Sources</searchLink>. May2013, Vol. 229, p258-264. 7p.
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  Data: <searchLink fieldCode="DE" term="%22Lanthanum+compounds%22">Lanthanum compounds</searchLink><br /><searchLink fieldCode="DE" term="%22Solid+oxide+fuel+cells%22">Solid oxide fuel cells</searchLink><br /><searchLink fieldCode="DE" term="%22Nanoparticle+synthesis%22">Nanoparticle synthesis</searchLink><br /><searchLink fieldCode="DE" term="%22Cathodes%22">Cathodes</searchLink><br /><searchLink fieldCode="DE" term="%22Thin+films%22">Thin films</searchLink><br /><searchLink fieldCode="DE" term="%22Nanocrystals%22">Nanocrystals</searchLink><br /><searchLink fieldCode="DE" term="%22Metal+powders%22">Metal powders</searchLink><br /><searchLink fieldCode="DE" term="%22Microstructure%22">Microstructure</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Abstract: Nanocrystalline La0.6Sr0.4CoO3− δ (LSC) powder with an ultrafine microstructure is synthesized via salt-assisted spray pyrolysis and subsequently stabilized in water-based dispersions. Nanoparticulate cathode thin films of LSC and LSC–GDC (gadolinium doped ceria) nanocomposites (with 10–40 wt% of GDC) are prepared via single step spin coating on yttria stabilized zirconia (YSZ) substrates. In order to prevent the chemical reaction between the cathode and the electrolyte, a thin buffer layer of GDC is deposited using spin coating on the YSZ substrates. The electrochemical performance of the thin film cathodes is measured by impedance spectroscopy on symmetrical cells in the temperature range of 450–650 °C. LSC cathode thin films (250 nm thick) with 30 wt% GDC content exhibit the lowest area specific resistance (ASR) values of 0.32, 0.78 and 2.04 Ω cm2 in ambient air at 650, 600 and 550 °C, respectively. [Copyright &y& Elsevier]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Power Sources 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:
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      – Type: doi
        Value: 10.1016/j.jpowsour.2012.11.149
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 7
        StartPage: 258
    Subjects:
      – SubjectFull: Lanthanum compounds
        Type: general
      – SubjectFull: Solid oxide fuel cells
        Type: general
      – SubjectFull: Nanoparticle synthesis
        Type: general
      – SubjectFull: Cathodes
        Type: general
      – SubjectFull: Thin films
        Type: general
      – SubjectFull: Nanocrystals
        Type: general
      – SubjectFull: Metal powders
        Type: general
      – SubjectFull: Microstructure
        Type: general
    Titles:
      – TitleFull: Synthesis and characterization of nanoparticulate La0.6Sr0.4CoO3− δ cathodes for thin-film solid oxide fuel cells
        Type: main
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            NameFull: Benel, Cahit
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            NameFull: Darbandi, Azad J.
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            NameFull: Djenadic, Ruzica
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            NameFull: Evans, Anna
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            NameFull: Tölke, René
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            NameFull: Hahn, Horst
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            – D: 01
              M: 05
              Text: May2013
              Type: published
              Y: 2013
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              Value: 03787753
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              Value: 229
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            – TitleFull: Journal of Power Sources
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