Electrode performance of nanostructured La1-aSraCo1-bFebO3-x on a Ce0.8Sm0.2O2 electrolyte prepared by citrate nitrate auto-combustion

Francesca Deganello; Vincenzo Esposito; Enrico Traversa; Masaru Miyayama

doi:10.1149/1.2215557

Electrode performance of nanostructured La_1-aSr_aCo_1-bFe_bO_3-x on a Ce_0.8Sm_0.2O₂ electrolyte prepared by citrate nitrate auto-combustion

Francesca Deganello, Vincenzo Esposito, Enrico Traversa, Masaru Miyayama

Research output: Contribution to journal › Conference article › Research › peer-review

Abstract

Nanostructured La1-aSraCo1-bFebO3-x (a=0.3-0.5; b=0-0.2) and Ce0.8Sm0.2O2 powders were successfully prepared by citrate-nitrate auto-combustion synthesis and were characterized by scanning electron microscopy and X-ray diffraction analysis. Electrochemical Impedance Spectroscopy measurements on symmetric cells were performed to evaluate the applicability of La1-aSraCo1-bFebO3-x as a cathode material for Single Chamber Solid Oxide Fuel Cells. Our results demonstrated that strontium has a positive effect while iron shows a slightly negative effect on the interfacial resistance. The effect of the electrode sintering temperature was investigated by varying the temperature from 850 °C to 1250 °C and the best sintering temperature was found to be 900 °C. The best characteristics as cathode around the operating temperature of Single Chamber Fuel Cells were found for the composition with a=0.4 and the minimum iron doping; at 700°C, an Area Specific Resistance of 0.13 Ω·cm2 was measured.

Original language	English
Journal	E C S Transactions
Volume	1
Issue number	7
Pages (from-to)	219-232
ISSN	1938-5862
DOIs	https://doi.org/10.1149/1.2215557
Publication status	Published - 2006
Externally published	Yes
Event	208th ECS Meeting - Los Angeles, California, United States Duration: 16 Oct 2005 → 21 Oct 2005

Conference

Conference	208th ECS Meeting
Country/Territory	United States
City	Los Angeles, California
Period	16/10/2005 → 21/10/2005

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10.1149/1.2215557

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@inproceedings{80a207ddd53c433aae11fb3ef8fc3041,

title = "Electrode performance of nanostructured La1-aSraCo1-bFebO3-x on a Ce0.8Sm0.2O2 electrolyte prepared by citrate nitrate auto-combustion",

abstract = "Nanostructured La1-aSraCo1-bFebO3-x (a=0.3-0.5; b=0-0.2) and Ce0.8Sm0.2O2 powders were successfully prepared by citrate-nitrate auto-combustion synthesis and were characterized by scanning electron microscopy and X-ray diffraction analysis. Electrochemical Impedance Spectroscopy measurements on symmetric cells were performed to evaluate the applicability of La1-aSraCo1-bFebO3-x as a cathode material for Single Chamber Solid Oxide Fuel Cells. Our results demonstrated that strontium has a positive effect while iron shows a slightly negative effect on the interfacial resistance. The effect of the electrode sintering temperature was investigated by varying the temperature from 850 °C to 1250 °C and the best sintering temperature was found to be 900 °C. The best characteristics as cathode around the operating temperature of Single Chamber Fuel Cells were found for the composition with a=0.4 and the minimum iron doping; at 700°C, an Area Specific Resistance of 0.13 Ω·cm2 was measured.",

author = "Francesca Deganello and Vincenzo Esposito and Enrico Traversa and Masaru Miyayama",

year = "2006",

doi = "10.1149/1.2215557",

language = "English",

volume = "1",

pages = "219--232",

journal = "E C S Transactions",

issn = "1938-5862",

publisher = "The Electrochemical Society",

number = "7",

note = "208th ECS Meeting ; Conference date: 16-10-2005 Through 21-10-2005",

}

TY - GEN

T1 - Electrode performance of nanostructured La1-aSraCo1-bFebO3-x on a Ce0.8Sm0.2O2 electrolyte prepared by citrate nitrate auto-combustion

AU - Deganello, Francesca

AU - Esposito, Vincenzo

AU - Traversa, Enrico

AU - Miyayama, Masaru

PY - 2006

Y1 - 2006

N2 - Nanostructured La1-aSraCo1-bFebO3-x (a=0.3-0.5; b=0-0.2) and Ce0.8Sm0.2O2 powders were successfully prepared by citrate-nitrate auto-combustion synthesis and were characterized by scanning electron microscopy and X-ray diffraction analysis. Electrochemical Impedance Spectroscopy measurements on symmetric cells were performed to evaluate the applicability of La1-aSraCo1-bFebO3-x as a cathode material for Single Chamber Solid Oxide Fuel Cells. Our results demonstrated that strontium has a positive effect while iron shows a slightly negative effect on the interfacial resistance. The effect of the electrode sintering temperature was investigated by varying the temperature from 850 °C to 1250 °C and the best sintering temperature was found to be 900 °C. The best characteristics as cathode around the operating temperature of Single Chamber Fuel Cells were found for the composition with a=0.4 and the minimum iron doping; at 700°C, an Area Specific Resistance of 0.13 Ω·cm2 was measured.

AB - Nanostructured La1-aSraCo1-bFebO3-x (a=0.3-0.5; b=0-0.2) and Ce0.8Sm0.2O2 powders were successfully prepared by citrate-nitrate auto-combustion synthesis and were characterized by scanning electron microscopy and X-ray diffraction analysis. Electrochemical Impedance Spectroscopy measurements on symmetric cells were performed to evaluate the applicability of La1-aSraCo1-bFebO3-x as a cathode material for Single Chamber Solid Oxide Fuel Cells. Our results demonstrated that strontium has a positive effect while iron shows a slightly negative effect on the interfacial resistance. The effect of the electrode sintering temperature was investigated by varying the temperature from 850 °C to 1250 °C and the best sintering temperature was found to be 900 °C. The best characteristics as cathode around the operating temperature of Single Chamber Fuel Cells were found for the composition with a=0.4 and the minimum iron doping; at 700°C, an Area Specific Resistance of 0.13 Ω·cm2 was measured.

U2 - 10.1149/1.2215557

DO - 10.1149/1.2215557

M3 - Conference article

SN - 1938-5862

VL - 1

SP - 219

EP - 232

JO - E C S Transactions

JF - E C S Transactions

IS - 7

T2 - 208th ECS Meeting

Y2 - 16 October 2005 through 21 October 2005

ER -