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Synthesis and characterization of nanoparticulate films for intermediate temperature solid oxide fuel cells

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Title: Synthesis and characterization of nanoparticulate films for intermediate temperature solid oxide fuel cells
Authors: Darbandi, Azad J.1,2 Darbandi@nano.tu-darmstadt.de, Enz, Thorsten2, Hahn, Horst1,2
Source: Solid State Ionics. Apr2009, Vol. 180 Issue 4/5, p424-430. 7p.
Subjects: Inorganic synthesis, Surface analysis, Metallic films, Solid oxide fuel cells, Nanoparticles, Nanocrystals, Lanthanum compounds, Pyrolysis
Abstract: Abstract: Nanocrystalline strontium-doped lanthanum manganite (LSM) with a high specific surface area of 70 m2/g was synthesized via spray pyrolysis. The as prepared powder was characterized by ex-situ X-ray diffraction (XRD), in-situ high temperature X-ray diffraction (HTXRD), ex-situ nitrogen adsorption and high resolution scanning electron microscopy (HRSEM). LSM nanopowders with a mean particle size of 40 nm were dispersed in water-based media using ultrasonication. Nanocomposite LSM-GDC (gadolinium doped ceria) thin films were prepared by single step spin coating of co-stabilized LSM and GDC dispersions. The thickness of these thin films (≤1 μm) is more than 10 times lower than conventional cathode layers prepared by screen printing. The interfacial polarization resistances were 68, 118 and 220 mΩ cm2 at 850, 800 and 750 °C, respectively. The high performance is attributed to small grain size, high porosity and large specific surface area. This method offers a very cost effective approach for the preparation of electrochemically highly active porous thin films, particularly applicable for micro solid oxide fuel cells. [Copyright &y& Elsevier]
Copyright of Solid State Ionics 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: 37346372
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Data: Synthesis and characterization of nanoparticulate films for intermediate temperature solid oxide fuel cells
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  Data: <searchLink fieldCode="AR" term="%22Darbandi%2C+Azad+J%2E%22">Darbandi, Azad J.</searchLink><relatesTo>1,2</relatesTo><i> Darbandi@nano.tu-darmstadt.de</i><br /><searchLink fieldCode="AR" term="%22Enz%2C+Thorsten%22">Enz, Thorsten</searchLink><relatesTo>2</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="%22Solid+State+Ionics%22">Solid State Ionics</searchLink>. Apr2009, Vol. 180 Issue 4/5, p424-430. 7p.
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  Data: <searchLink fieldCode="DE" term="%22Inorganic+synthesis%22">Inorganic synthesis</searchLink><br /><searchLink fieldCode="DE" term="%22Surface+analysis%22">Surface analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Metallic+films%22">Metallic films</searchLink><br /><searchLink fieldCode="DE" term="%22Solid+oxide+fuel+cells%22">Solid oxide fuel cells</searchLink><br /><searchLink fieldCode="DE" term="%22Nanoparticles%22">Nanoparticles</searchLink><br /><searchLink fieldCode="DE" term="%22Nanocrystals%22">Nanocrystals</searchLink><br /><searchLink fieldCode="DE" term="%22Lanthanum+compounds%22">Lanthanum compounds</searchLink><br /><searchLink fieldCode="DE" term="%22Pyrolysis%22">Pyrolysis</searchLink>
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  Label: Abstract
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  Data: Abstract: Nanocrystalline strontium-doped lanthanum manganite (LSM) with a high specific surface area of 70 m2/g was synthesized via spray pyrolysis. The as prepared powder was characterized by ex-situ X-ray diffraction (XRD), in-situ high temperature X-ray diffraction (HTXRD), ex-situ nitrogen adsorption and high resolution scanning electron microscopy (HRSEM). LSM nanopowders with a mean particle size of 40 nm were dispersed in water-based media using ultrasonication. Nanocomposite LSM-GDC (gadolinium doped ceria) thin films were prepared by single step spin coating of co-stabilized LSM and GDC dispersions. The thickness of these thin films (≤1 μm) is more than 10 times lower than conventional cathode layers prepared by screen printing. The interfacial polarization resistances were 68, 118 and 220 mΩ cm2 at 850, 800 and 750 °C, respectively. The high performance is attributed to small grain size, high porosity and large specific surface area. This method offers a very cost effective approach for the preparation of electrochemically highly active porous thin films, particularly applicable for micro solid oxide fuel cells. [Copyright &y& Elsevier]
– Name: AbstractSuppliedCopyright
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  Data: <i>Copyright of Solid State Ionics 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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        Value: 10.1016/j.ssi.2009.01.004
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        Text: English
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      – SubjectFull: Inorganic synthesis
        Type: general
      – SubjectFull: Surface analysis
        Type: general
      – SubjectFull: Metallic films
        Type: general
      – SubjectFull: Solid oxide fuel cells
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      – SubjectFull: Nanoparticles
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      – SubjectFull: Nanocrystals
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      – SubjectFull: Lanthanum compounds
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      – SubjectFull: Pyrolysis
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      – TitleFull: Synthesis and characterization of nanoparticulate films for intermediate temperature solid oxide fuel cells
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            NameFull: Enz, Thorsten
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              Text: Apr2009
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