High temperature phase stabilities and electrochemical properties of InBaCo4-xZnxO7 cathodes for intermediate temperature solid oxide fuel cells
Identifieur interne : 002D52 ( Main/Repository ); précédent : 002D51; suivant : 002D53High temperature phase stabilities and electrochemical properties of InBaCo4-xZnxO7 cathodes for intermediate temperature solid oxide fuel cells
Auteurs : RBID : Pascal:12-0052808Descripteurs français
- Pascal (Inist)
- Composé n éléments, Indium Oxyde, Baryum Oxyde, Cathode, Pile combustible oxyde solide, Domaine température 400-1000 K, Diffraction RX, Zinc Oxyde, Cobalt Oxyde, Relation composition propriété, Paramètre cristallin, Stabilité chimique, Microscopie électronique balayage, Propriété thermique, Conductivité électrique, Spectrométrie impédance électrochimique, Condition opératoire, Matériau électrode, Structure surface, Morphologie.
English descriptors
- KwdEn :
- Barium Oxides, Cathode, Chemical stability, Cobalt Oxides, Electrical conductivity, Electrochemical impedance spectroscopy, Electrode material, Indium Oxides, Lattice parameters, Morphology, Multi-element compound, Operating conditions, Property composition relationship, Scanning electron microscopy, Solid oxide fuel cell, Surface structure, Temperature range 400-1000 K, Thermal properties, X ray diffraction, Zinc Oxides.
Abstract
InBaCo4-xZnxO7 oxides have been synthesized and characterized as cathode materials for intermediate temperature solid oxide fuel cells (IT-SOFC). The effect of Zn substitution for Co on the structure, phase stability, thermal expansion, and electrochemical properties of the InBaCo4-xZnxO7 has been investigated. The increase in the Zn content from x = 1 to 1.5 improves the high temperature phase stability at 600 C and 700°C for 100 h, and chemical stability against a Gd0.2Ce0.8O1.9 (GDC) electrolyte. Thermal expansion coefficient (TEC) values of the InBaCo4-xZnxO7 (x = 1, 1.5, 2) specimens were determined to be 8.6 x 10-6 to 9.6 x 10-6/°C in the range of 80-900°C, which provides good thermal expansion compatibility with the standard SOFC electrolyte materials. The InBaCo4-xZnxO7 + GDC (50:50wt.%) composite cathodes exhibit improved cathode performances compared to those obtained from the simple InBaCo4-xZnxO7 cathodes due to the extended triple-phase boundary (TPB) and enhanced oxide-ion conductivity through the GDC portion in the composites.
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Pascal:12-0052808Le document en format XML
<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en" level="a">High temperature phase stabilities and electrochemical properties of InBaCo<sub>4-x</sub>
Zn<sub>x</sub>
O<sub>7</sub>
cathodes for intermediate temperature solid oxide fuel cells</title>
<author><name sortKey="Kim, Jung Hyun" uniqKey="Kim J">Jung-Hyun Kim</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Neutron Scattering Science Division, Spallation Neutron Source, Oak Ridge National Lab, 1 Bethel Valley Road</s1>
<s2>Oak Ridge, TN 37831</s2>
<s3>USA</s3>
<sZ>1 aut.</sZ>
<sZ>6 aut.</sZ>
</inist:fA14>
<country>États-Unis</country>
<wicri:noRegion>Oak Ridge, TN 37831</wicri:noRegion>
</affiliation>
</author>
<author><name>YOUNG NAM KIM</name>
<affiliation wicri:level="4"><inist:fA14 i1="02"><s1>Electrochemical Energy Laboratory & Materials Science and Engineering Program, The University of Texas at Austin</s1>
<s2>Austin, TX 78712</s2>
<s3>USA</s3>
<sZ>2 aut.</sZ>
<sZ>4 aut.</sZ>
</inist:fA14>
<country>États-Unis</country>
<placeName><settlement type="city">Austin (Texas)</settlement>
<region type="state">Texas</region>
</placeName>
<orgName type="university">Université du Texas à Austin</orgName>
</affiliation>
</author>
<author><name>ZHONGHE BI</name>
<affiliation wicri:level="1"><inist:fA14 i1="03"><s1>Chemical Sciences Division, Oak Ridge National Laboratory</s1>
<s2>Oak Ridge, TN 37831</s2>
<s3>USA</s3>
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<author><name sortKey="Manthiram, Arumugam" uniqKey="Manthiram A">Arumugam Manthiram</name>
<affiliation wicri:level="4"><inist:fA14 i1="02"><s1>Electrochemical Energy Laboratory & Materials Science and Engineering Program, The University of Texas at Austin</s1>
<s2>Austin, TX 78712</s2>
<s3>USA</s3>
<sZ>2 aut.</sZ>
<sZ>4 aut.</sZ>
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<region type="state">Texas</region>
</placeName>
<orgName type="university">Université du Texas à Austin</orgName>
</affiliation>
</author>
<author><name sortKey="Parans Paranthaman, M" uniqKey="Parans Paranthaman M">M. Parans Paranthaman</name>
<affiliation wicri:level="1"><inist:fA14 i1="03"><s1>Chemical Sciences Division, Oak Ridge National Laboratory</s1>
<s2>Oak Ridge, TN 37831</s2>
<s3>USA</s3>
<sZ>3 aut.</sZ>
<sZ>5 aut.</sZ>
</inist:fA14>
<country>États-Unis</country>
<wicri:noRegion>Oak Ridge, TN 37831</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Huq, Ashfia" uniqKey="Huq A">Ashfia Huq</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Neutron Scattering Science Division, Spallation Neutron Source, Oak Ridge National Lab, 1 Bethel Valley Road</s1>
<s2>Oak Ridge, TN 37831</s2>
<s3>USA</s3>
<sZ>1 aut.</sZ>
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<date when="2011">2011</date>
<idno type="stanalyst">PASCAL 12-0052808 INIST</idno>
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<seriesStmt><idno type="ISSN">0013-4686</idno>
<title level="j" type="abbreviated">Electrochim. acta</title>
<title level="j" type="main">Electrochimica acta</title>
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</fileDesc>
<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Barium Oxides</term>
<term>Cathode</term>
<term>Chemical stability</term>
<term>Cobalt Oxides</term>
<term>Electrical conductivity</term>
<term>Electrochemical impedance spectroscopy</term>
<term>Electrode material</term>
<term>Indium Oxides</term>
<term>Lattice parameters</term>
<term>Morphology</term>
<term>Multi-element compound</term>
<term>Operating conditions</term>
<term>Property composition relationship</term>
<term>Scanning electron microscopy</term>
<term>Solid oxide fuel cell</term>
<term>Surface structure</term>
<term>Temperature range 400-1000 K</term>
<term>Thermal properties</term>
<term>X ray diffraction</term>
<term>Zinc Oxides</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Composé n éléments</term>
<term>Indium Oxyde</term>
<term>Baryum Oxyde</term>
<term>Cathode</term>
<term>Pile combustible oxyde solide</term>
<term>Domaine température 400-1000 K</term>
<term>Diffraction RX</term>
<term>Zinc Oxyde</term>
<term>Cobalt Oxyde</term>
<term>Relation composition propriété</term>
<term>Paramètre cristallin</term>
<term>Stabilité chimique</term>
<term>Microscopie électronique balayage</term>
<term>Propriété thermique</term>
<term>Conductivité électrique</term>
<term>Spectrométrie impédance électrochimique</term>
<term>Condition opératoire</term>
<term>Matériau électrode</term>
<term>Structure surface</term>
<term>Morphologie</term>
</keywords>
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<front><div type="abstract" xml:lang="en">InBaCo<sub>4-x</sub>
Zn<sub>x</sub>
O<sub>7</sub>
oxides have been synthesized and characterized as cathode materials for intermediate temperature solid oxide fuel cells (IT-SOFC). The effect of Zn substitution for Co on the structure, phase stability, thermal expansion, and electrochemical properties of the InBaCo<sub>4-x</sub>
Zn<sub>x</sub>
O<sub>7</sub>
has been investigated. The increase in the Zn content from x = 1 to 1.5 improves the high temperature phase stability at 600 C and 700°C for 100 h, and chemical stability against a Gd<sub>0.2</sub>
Ce<sub>0.8</sub>
O<sub>1.9</sub>
(GDC) electrolyte. Thermal expansion coefficient (TEC) values of the InBaCo<sub>4-x</sub>
Zn<sub>x</sub>
O<sub>7</sub>
(x = 1, 1.5, 2) specimens were determined to be 8.6 x 10<sup>-6</sup>
to 9.6 x 10<sup>-6</sup>
/°C in the range of 80-900°C, which provides good thermal expansion compatibility with the standard SOFC electrolyte materials. The InBaCo<sub>4-x</sub>
Zn<sub>x</sub>
O<sub>7</sub>
+ GDC (50:50wt.%) composite cathodes exhibit improved cathode performances compared to those obtained from the simple InBaCo<sub>4-x</sub>
Zn<sub>x</sub>
O<sub>7</sub>
cathodes due to the extended triple-phase boundary (TPB) and enhanced oxide-ion conductivity through the GDC portion in the composites.</div>
</front>
</TEI>
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<fA08 i1="01" i2="1" l="ENG"><s1>High temperature phase stabilities and electrochemical properties of InBaCo<sub>4-x</sub>
Zn<sub>x</sub>
O<sub>7</sub>
cathodes for intermediate temperature solid oxide fuel cells</s1>
</fA08>
<fA11 i1="01" i2="1"><s1>KIM (Jung-Hyun)</s1>
</fA11>
<fA11 i1="02" i2="1"><s1>YOUNG NAM KIM</s1>
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<fA11 i1="03" i2="1"><s1>ZHONGHE BI</s1>
</fA11>
<fA11 i1="04" i2="1"><s1>MANTHIRAM (Arumugam)</s1>
</fA11>
<fA11 i1="05" i2="1"><s1>PARANS PARANTHAMAN (M.)</s1>
</fA11>
<fA11 i1="06" i2="1"><s1>HUQ (Ashfia)</s1>
</fA11>
<fA14 i1="01"><s1>Neutron Scattering Science Division, Spallation Neutron Source, Oak Ridge National Lab, 1 Bethel Valley Road</s1>
<s2>Oak Ridge, TN 37831</s2>
<s3>USA</s3>
<sZ>1 aut.</sZ>
<sZ>6 aut.</sZ>
</fA14>
<fA14 i1="02"><s1>Electrochemical Energy Laboratory & Materials Science and Engineering Program, The University of Texas at Austin</s1>
<s2>Austin, TX 78712</s2>
<s3>USA</s3>
<sZ>2 aut.</sZ>
<sZ>4 aut.</sZ>
</fA14>
<fA14 i1="03"><s1>Chemical Sciences Division, Oak Ridge National Laboratory</s1>
<s2>Oak Ridge, TN 37831</s2>
<s3>USA</s3>
<sZ>3 aut.</sZ>
<sZ>5 aut.</sZ>
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<fA20><s1>5740-5745</s1>
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<fA21><s1>2011</s1>
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<s2>1516</s2>
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<fA66 i1="01"><s0>GBR</s0>
</fA66>
<fC01 i1="01" l="ENG"><s0>InBaCo<sub>4-x</sub>
Zn<sub>x</sub>
O<sub>7</sub>
oxides have been synthesized and characterized as cathode materials for intermediate temperature solid oxide fuel cells (IT-SOFC). The effect of Zn substitution for Co on the structure, phase stability, thermal expansion, and electrochemical properties of the InBaCo<sub>4-x</sub>
Zn<sub>x</sub>
O<sub>7</sub>
has been investigated. The increase in the Zn content from x = 1 to 1.5 improves the high temperature phase stability at 600 C and 700°C for 100 h, and chemical stability against a Gd<sub>0.2</sub>
Ce<sub>0.8</sub>
O<sub>1.9</sub>
(GDC) electrolyte. Thermal expansion coefficient (TEC) values of the InBaCo<sub>4-x</sub>
Zn<sub>x</sub>
O<sub>7</sub>
(x = 1, 1.5, 2) specimens were determined to be 8.6 x 10<sup>-6</sup>
to 9.6 x 10<sup>-6</sup>
/°C in the range of 80-900°C, which provides good thermal expansion compatibility with the standard SOFC electrolyte materials. The InBaCo<sub>4-x</sub>
Zn<sub>x</sub>
O<sub>7</sub>
+ GDC (50:50wt.%) composite cathodes exhibit improved cathode performances compared to those obtained from the simple InBaCo<sub>4-x</sub>
Zn<sub>x</sub>
O<sub>7</sub>
cathodes due to the extended triple-phase boundary (TPB) and enhanced oxide-ion conductivity through the GDC portion in the composites.</s0>
</fC01>
<fC02 i1="01" i2="X"><s0>001D06D03E</s0>
</fC02>
<fC02 i1="02" i2="X"><s0>230</s0>
</fC02>
<fC03 i1="01" i2="X" l="FRE"><s0>Composé n éléments</s0>
<s5>01</s5>
</fC03>
<fC03 i1="01" i2="X" l="ENG"><s0>Multi-element compound</s0>
<s5>01</s5>
</fC03>
<fC03 i1="01" i2="X" l="SPA"><s0>Compuesto n elementos</s0>
<s5>01</s5>
</fC03>
<fC03 i1="02" i2="X" l="FRE"><s0>Indium Oxyde</s0>
<s2>NC</s2>
<s2>NA</s2>
<s5>02</s5>
</fC03>
<fC03 i1="02" i2="X" l="ENG"><s0>Indium Oxides</s0>
<s2>NC</s2>
<s2>NA</s2>
<s5>02</s5>
</fC03>
<fC03 i1="02" i2="X" l="SPA"><s0>Indio Óxido</s0>
<s2>NC</s2>
<s2>NA</s2>
<s5>02</s5>
</fC03>
<fC03 i1="03" i2="X" l="FRE"><s0>Baryum Oxyde</s0>
<s2>NC</s2>
<s2>FX</s2>
<s2>NA</s2>
<s5>03</s5>
</fC03>
<fC03 i1="03" i2="X" l="ENG"><s0>Barium Oxides</s0>
<s2>NC</s2>
<s2>FX</s2>
<s2>NA</s2>
<s5>03</s5>
</fC03>
<fC03 i1="03" i2="X" l="SPA"><s0>Bario Óxido</s0>
<s2>NC</s2>
<s2>FX</s2>
<s2>NA</s2>
<s5>03</s5>
</fC03>
<fC03 i1="04" i2="X" l="FRE"><s0>Cathode</s0>
<s5>04</s5>
</fC03>
<fC03 i1="04" i2="X" l="ENG"><s0>Cathode</s0>
<s5>04</s5>
</fC03>
<fC03 i1="04" i2="X" l="SPA"><s0>Cátodo</s0>
<s5>04</s5>
</fC03>
<fC03 i1="05" i2="X" l="FRE"><s0>Pile combustible oxyde solide</s0>
<s5>05</s5>
</fC03>
<fC03 i1="05" i2="X" l="ENG"><s0>Solid oxide fuel cell</s0>
<s5>05</s5>
</fC03>
<fC03 i1="05" i2="X" l="SPA"><s0>Pila combustible oxido sólido</s0>
<s5>05</s5>
</fC03>
<fC03 i1="06" i2="3" l="FRE"><s0>Domaine température 400-1000 K</s0>
<s5>06</s5>
</fC03>
<fC03 i1="06" i2="3" l="ENG"><s0>Temperature range 400-1000 K</s0>
<s5>06</s5>
</fC03>
<fC03 i1="07" i2="X" l="FRE"><s0>Diffraction RX</s0>
<s5>07</s5>
</fC03>
<fC03 i1="07" i2="X" l="ENG"><s0>X ray diffraction</s0>
<s5>07</s5>
</fC03>
<fC03 i1="07" i2="X" l="SPA"><s0>Difracción RX</s0>
<s5>07</s5>
</fC03>
<fC03 i1="08" i2="X" l="FRE"><s0>Zinc Oxyde</s0>
<s2>NC</s2>
<s2>NA</s2>
<s5>08</s5>
</fC03>
<fC03 i1="08" i2="X" l="ENG"><s0>Zinc Oxides</s0>
<s2>NC</s2>
<s2>NA</s2>
<s5>08</s5>
</fC03>
<fC03 i1="08" i2="X" l="SPA"><s0>Zinc Óxido</s0>
<s2>NC</s2>
<s2>NA</s2>
<s5>08</s5>
</fC03>
<fC03 i1="09" i2="X" l="FRE"><s0>Cobalt Oxyde</s0>
<s2>NC</s2>
<s2>NA</s2>
<s5>09</s5>
</fC03>
<fC03 i1="09" i2="X" l="ENG"><s0>Cobalt Oxides</s0>
<s2>NC</s2>
<s2>NA</s2>
<s5>09</s5>
</fC03>
<fC03 i1="09" i2="X" l="SPA"><s0>Cobalto Óxido</s0>
<s2>NC</s2>
<s2>NA</s2>
<s5>09</s5>
</fC03>
<fC03 i1="10" i2="X" l="FRE"><s0>Relation composition propriété</s0>
<s5>10</s5>
</fC03>
<fC03 i1="10" i2="X" l="ENG"><s0>Property composition relationship</s0>
<s5>10</s5>
</fC03>
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<s5>10</s5>
</fC03>
<fC03 i1="11" i2="X" l="FRE"><s0>Paramètre cristallin</s0>
<s5>11</s5>
</fC03>
<fC03 i1="11" i2="X" l="ENG"><s0>Lattice parameters</s0>
<s5>11</s5>
</fC03>
<fC03 i1="11" i2="X" l="SPA"><s0>Parámetro cristalino</s0>
<s5>11</s5>
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<fC03 i1="12" i2="X" l="FRE"><s0>Stabilité chimique</s0>
<s5>12</s5>
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<s5>12</s5>
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<s5>12</s5>
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<s5>13</s5>
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<s5>13</s5>
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<s5>14</s5>
</fC03>
<fC03 i1="14" i2="X" l="ENG"><s0>Thermal properties</s0>
<s5>14</s5>
</fC03>
<fC03 i1="14" i2="X" l="SPA"><s0>Propiedad térmica</s0>
<s5>14</s5>
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<fC03 i1="15" i2="X" l="FRE"><s0>Conductivité électrique</s0>
<s5>15</s5>
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<s5>15</s5>
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<fC03 i1="15" i2="X" l="SPA"><s0>Conductividad eléctrica</s0>
<s5>15</s5>
</fC03>
<fC03 i1="16" i2="3" l="FRE"><s0>Spectrométrie impédance électrochimique</s0>
<s5>16</s5>
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<fC03 i1="16" i2="3" l="ENG"><s0>Electrochemical impedance spectroscopy</s0>
<s5>16</s5>
</fC03>
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<s5>32</s5>
</fC03>
<fC03 i1="17" i2="X" l="ENG"><s0>Operating conditions</s0>
<s5>32</s5>
</fC03>
<fC03 i1="17" i2="X" l="SPA"><s0>Condición operatoria</s0>
<s5>32</s5>
</fC03>
<fC03 i1="18" i2="X" l="FRE"><s0>Matériau électrode</s0>
<s5>33</s5>
</fC03>
<fC03 i1="18" i2="X" l="ENG"><s0>Electrode material</s0>
<s5>33</s5>
</fC03>
<fC03 i1="18" i2="X" l="SPA"><s0>Material electrodo</s0>
<s5>33</s5>
</fC03>
<fC03 i1="19" i2="X" l="FRE"><s0>Structure surface</s0>
<s5>34</s5>
</fC03>
<fC03 i1="19" i2="X" l="ENG"><s0>Surface structure</s0>
<s5>34</s5>
</fC03>
<fC03 i1="19" i2="X" l="SPA"><s0>Estructura superficie</s0>
<s5>34</s5>
</fC03>
<fC03 i1="20" i2="X" l="FRE"><s0>Morphologie</s0>
<s5>35</s5>
</fC03>
<fC03 i1="20" i2="X" l="ENG"><s0>Morphology</s0>
<s5>35</s5>
</fC03>
<fC03 i1="20" i2="X" l="SPA"><s0>Morfología</s0>
<s5>35</s5>
</fC03>
<fN21><s1>030</s1>
</fN21>
</pA>
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