Anodic performance and intermediate temperature fuel cell testing of La0.75Sr0.25Cr0.5Mn0.5O3-δ at lanthanum gallate electrolytes

J  Pena-Martinez; D  Marrero-Lopez; J C  Ruiz-Morales; C  Savaniu; P  Nunez; J T S  Irvine

doi:10.1021/cm0516659

Anodic performance and intermediate temperature fuel cell testing of La_0.75Sr_0.25Cr_0.5Mn_0.5O_3-_δ at lanthanum gallate electrolytes

J Pena-Martinez, D Marrero-Lopez, J C Ruiz-Morales, C Savaniu, P Nunez, J T S Irvine

Research output: Contribution to journal › Article › peer-review

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Abstract

This study is focused oil the electrochemical performance of perovskite-type materials based on doped LaGaO3 (LGO). La0.9Sr0.1Ga0.8Mg0.2O3-delta (LSGM) and La0.9Sr0.1Ga0.8Mg0.115Co0.085O3-delta (LSGMCo) were used as electrolytes and La0.8Sr0.2MnO3-delta (LSM) and La0.75Sr0.25Cr0.5Mn0.5O3-delta (LSCM) as cathode and anode material, respectively. Much better performance was obtained at an LSGM electrolyte than at LSGMCo, probably due to interfacial reactions between LSGMCo and LSM. An LSGM electrolyte was prepared by tape casting with a thickness of about 120 mu m and good values of power output in a conventional electrolyte-supported cell were achieved, 425 and 570 mW/cm(2) using wet 5% H-2/Ar and pure hydrogen as fuel, respectively, and pure O-2 as oxidant at 1073 K.

Original language	English
Pages (from-to)	1001-1006
Number of pages	6
Journal	Chemistry of Materials
Volume	18
Issue number	4
DOIs	https://doi.org/10.1021/cm0516659
Publication status	Published - 21 Feb 2006

Keywords

OXIDE-ION CONDUCTIVITY
PEROVSKITE-TYPE OXIDE
POWER-DENSITY
LAGAO3
CO

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10.1021/cm0516659

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title = "Anodic performance and intermediate temperature fuel cell testing of La0.75Sr0.25Cr0.5Mn0.5O3-δ at lanthanum gallate electrolytes",

abstract = "This study is focused oil the electrochemical performance of perovskite-type materials based on doped LaGaO3 (LGO). La0.9Sr0.1Ga0.8Mg0.2O3-delta (LSGM) and La0.9Sr0.1Ga0.8Mg0.115Co0.085O3-delta (LSGMCo) were used as electrolytes and La0.8Sr0.2MnO3-delta (LSM) and La0.75Sr0.25Cr0.5Mn0.5O3-delta (LSCM) as cathode and anode material, respectively. Much better performance was obtained at an LSGM electrolyte than at LSGMCo, probably due to interfacial reactions between LSGMCo and LSM. An LSGM electrolyte was prepared by tape casting with a thickness of about 120 mu m and good values of power output in a conventional electrolyte-supported cell were achieved, 425 and 570 mW/cm(2) using wet 5% H-2/Ar and pure hydrogen as fuel, respectively, and pure O-2 as oxidant at 1073 K.",

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author = "J Pena-Martinez and D Marrero-Lopez and Ruiz-Morales, {J C} and C Savaniu and P Nunez and Irvine, {J T S}",

year = "2006",

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doi = "10.1021/cm0516659",

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T1 - Anodic performance and intermediate temperature fuel cell testing of La0.75Sr0.25Cr0.5Mn0.5O3-δ at lanthanum gallate electrolytes

AU - Pena-Martinez, J

AU - Marrero-Lopez, D

AU - Ruiz-Morales, J C

AU - Savaniu, C

AU - Nunez, P

AU - Irvine, J T S

PY - 2006/2/21

Y1 - 2006/2/21

N2 - This study is focused oil the electrochemical performance of perovskite-type materials based on doped LaGaO3 (LGO). La0.9Sr0.1Ga0.8Mg0.2O3-delta (LSGM) and La0.9Sr0.1Ga0.8Mg0.115Co0.085O3-delta (LSGMCo) were used as electrolytes and La0.8Sr0.2MnO3-delta (LSM) and La0.75Sr0.25Cr0.5Mn0.5O3-delta (LSCM) as cathode and anode material, respectively. Much better performance was obtained at an LSGM electrolyte than at LSGMCo, probably due to interfacial reactions between LSGMCo and LSM. An LSGM electrolyte was prepared by tape casting with a thickness of about 120 mu m and good values of power output in a conventional electrolyte-supported cell were achieved, 425 and 570 mW/cm(2) using wet 5% H-2/Ar and pure hydrogen as fuel, respectively, and pure O-2 as oxidant at 1073 K.

AB - This study is focused oil the electrochemical performance of perovskite-type materials based on doped LaGaO3 (LGO). La0.9Sr0.1Ga0.8Mg0.2O3-delta (LSGM) and La0.9Sr0.1Ga0.8Mg0.115Co0.085O3-delta (LSGMCo) were used as electrolytes and La0.8Sr0.2MnO3-delta (LSM) and La0.75Sr0.25Cr0.5Mn0.5O3-delta (LSCM) as cathode and anode material, respectively. Much better performance was obtained at an LSGM electrolyte than at LSGMCo, probably due to interfacial reactions between LSGMCo and LSM. An LSGM electrolyte was prepared by tape casting with a thickness of about 120 mu m and good values of power output in a conventional electrolyte-supported cell were achieved, 425 and 570 mW/cm(2) using wet 5% H-2/Ar and pure hydrogen as fuel, respectively, and pure O-2 as oxidant at 1073 K.

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KW - PEROVSKITE-TYPE OXIDE

KW - POWER-DENSITY

KW - LAGAO3

KW - CO

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U2 - 10.1021/cm0516659

DO - 10.1021/cm0516659

M3 - Article

SN - 0897-4756

VL - 18

SP - 1001

EP - 1006

JO - Chemistry of Materials

JF - Chemistry of Materials

IS - 4

ER -

Anodic performance and intermediate temperature fuel cell testing of La_0.75Sr_0.25Cr_0.5Mn_0.5O_3-_δ at lanthanum gallate electrolytes

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