Bi2Ru2O7 pyrochlore electrodes for Bi 2O3 based electrolyte for IT-SOFC applications

Vincenzo Esposito; Bac H. Luong; Elisabetta Di Bartolomeo; Eric D. Wachsman; Enrico Traversa

doi:10.1149/1.2215561

Bi₂Ru₂O₇ pyrochlore electrodes for Bi ₂O₃ based electrolyte for IT-SOFC applications

Vincenzo Esposito, Bac H. Luong^*, Elisabetta Di Bartolomeo, Eric D. Wachsman, Enrico Traversa

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

4 Scopus citations

Abstract

Bismuth ruthenate pyrochlore (Bi₂Ru₂O₇: BRO) was tested as a cathode in several bismuth oxide-based electrolyte cells. Erbium oxide stabilized bismuth oxide (ESB) (Bi₂O₃) _0.8 (Er₂O₃)_0.2, Bi₂V _0.9Me_0.1O_5.35 (BIMEVOX10, Me = Co, Cu, Zn), and Bi₂Ru₂O₇ (BRO) were synthesized via solid state reaction. ESB and BIMEVOX powders were pressed and sintered into dense pellets while BRO was deposited and sintered as porous electrodes onto ESB and BIMEVOX dense pellet surfaces. Morphologies and phases of the materials were characterized by Field Emission Scanning Electron Microscope and x-ray diffraction, respectively. Electrochemical performances of BRO/ESB and BRO/BIMEVOX symmetric cells were tested using Electrochemical Impedance Spectroscopy (EIS) at 200-700 °C in air. High polarization for BIMEVOX cells was observed, while ESB cells showed a promising behaviour. Different electrochemical performances of BRO electrodes, with ESB or BIMEVOX, indicated that the phases formed at electrodes/electrolyte interface controlled the cell polarization process. copyright The Electrochemical Society.

Original language	English (US)
Title of host publication	Solid State Ionic Devices IV
Pages	263-277
Number of pages	15
Volume	1
Edition	7
DOIs	https://doi.org/10.1149/1.2215561
State	Published - 2005
Externally published	Yes
Event	4th International Symposium on Solid-State Ionic Devices - 208th Meeting of the Electrochemical Society - Los Angeles, CA, United States Duration: Oct 16 2005 → Oct 21 2005

Other

Other	4th International Symposium on Solid-State Ionic Devices - 208th Meeting of the Electrochemical Society
Country/Territory	United States
City	Los Angeles, CA
Period	10/16/05 → 10/21/05

ASJC Scopus subject areas

Engineering(all)

Access to Document

10.1149/1.2215561

Cite this

@inproceedings{1784cd88c98549baa8b900cde2200d8d,

title = "Bi2Ru2O7 pyrochlore electrodes for Bi 2O3 based electrolyte for IT-SOFC applications",

abstract = "Bismuth ruthenate pyrochlore (Bi2Ru2O7: BRO) was tested as a cathode in several bismuth oxide-based electrolyte cells. Erbium oxide stabilized bismuth oxide (ESB) (Bi2O3) 0.8 (Er2O3)0.2, Bi2V 0.9Me0.1O5.35 (BIMEVOX10, Me = Co, Cu, Zn), and Bi2Ru2O7 (BRO) were synthesized via solid state reaction. ESB and BIMEVOX powders were pressed and sintered into dense pellets while BRO was deposited and sintered as porous electrodes onto ESB and BIMEVOX dense pellet surfaces. Morphologies and phases of the materials were characterized by Field Emission Scanning Electron Microscope and x-ray diffraction, respectively. Electrochemical performances of BRO/ESB and BRO/BIMEVOX symmetric cells were tested using Electrochemical Impedance Spectroscopy (EIS) at 200-700 °C in air. High polarization for BIMEVOX cells was observed, while ESB cells showed a promising behaviour. Different electrochemical performances of BRO electrodes, with ESB or BIMEVOX, indicated that the phases formed at electrodes/electrolyte interface controlled the cell polarization process. copyright The Electrochemical Society.",

author = "Vincenzo Esposito and Luong, {Bac H.} and {Di Bartolomeo}, Elisabetta and Wachsman, {Eric D.} and Enrico Traversa",

year = "2005",

doi = "10.1149/1.2215561",

language = "English (US)",

isbn = "1566774942",

volume = "1",

pages = "263--277",

booktitle = "Solid State Ionic Devices IV",

edition = "7",

note = "4th International Symposium on Solid-State Ionic Devices - 208th Meeting of the Electrochemical Society ; Conference date: 16-10-2005 Through 21-10-2005",

}

Esposito, V, Luong, BH, Di Bartolomeo, E, Wachsman, ED & Traversa, E 2005, Bi₂Ru₂O₇ pyrochlore electrodes for Bi ₂O₃ based electrolyte for IT-SOFC applications. in Solid State Ionic Devices IV. 7 edn, vol. 1, pp. 263-277, 4th International Symposium on Solid-State Ionic Devices - 208th Meeting of the Electrochemical Society, Los Angeles, CA, United States, 10/16/05. https://doi.org/10.1149/1.2215561

TY - GEN

T1 - Bi2Ru2O7 pyrochlore electrodes for Bi 2O3 based electrolyte for IT-SOFC applications

AU - Esposito, Vincenzo

AU - Luong, Bac H.

AU - Di Bartolomeo, Elisabetta

AU - Wachsman, Eric D.

AU - Traversa, Enrico

PY - 2005

Y1 - 2005

N2 - Bismuth ruthenate pyrochlore (Bi2Ru2O7: BRO) was tested as a cathode in several bismuth oxide-based electrolyte cells. Erbium oxide stabilized bismuth oxide (ESB) (Bi2O3) 0.8 (Er2O3)0.2, Bi2V 0.9Me0.1O5.35 (BIMEVOX10, Me = Co, Cu, Zn), and Bi2Ru2O7 (BRO) were synthesized via solid state reaction. ESB and BIMEVOX powders were pressed and sintered into dense pellets while BRO was deposited and sintered as porous electrodes onto ESB and BIMEVOX dense pellet surfaces. Morphologies and phases of the materials were characterized by Field Emission Scanning Electron Microscope and x-ray diffraction, respectively. Electrochemical performances of BRO/ESB and BRO/BIMEVOX symmetric cells were tested using Electrochemical Impedance Spectroscopy (EIS) at 200-700 °C in air. High polarization for BIMEVOX cells was observed, while ESB cells showed a promising behaviour. Different electrochemical performances of BRO electrodes, with ESB or BIMEVOX, indicated that the phases formed at electrodes/electrolyte interface controlled the cell polarization process. copyright The Electrochemical Society.

AB - Bismuth ruthenate pyrochlore (Bi2Ru2O7: BRO) was tested as a cathode in several bismuth oxide-based electrolyte cells. Erbium oxide stabilized bismuth oxide (ESB) (Bi2O3) 0.8 (Er2O3)0.2, Bi2V 0.9Me0.1O5.35 (BIMEVOX10, Me = Co, Cu, Zn), and Bi2Ru2O7 (BRO) were synthesized via solid state reaction. ESB and BIMEVOX powders were pressed and sintered into dense pellets while BRO was deposited and sintered as porous electrodes onto ESB and BIMEVOX dense pellet surfaces. Morphologies and phases of the materials were characterized by Field Emission Scanning Electron Microscope and x-ray diffraction, respectively. Electrochemical performances of BRO/ESB and BRO/BIMEVOX symmetric cells were tested using Electrochemical Impedance Spectroscopy (EIS) at 200-700 °C in air. High polarization for BIMEVOX cells was observed, while ESB cells showed a promising behaviour. Different electrochemical performances of BRO electrodes, with ESB or BIMEVOX, indicated that the phases formed at electrodes/electrolyte interface controlled the cell polarization process. copyright The Electrochemical Society.

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U2 - 10.1149/1.2215561

DO - 10.1149/1.2215561

M3 - Conference contribution

AN - SCOPUS:33845241249

SN - 1566774942

SN - 9781566774949

VL - 1

SP - 263

EP - 277

BT - Solid State Ionic Devices IV

T2 - 4th International Symposium on Solid-State Ionic Devices - 208th Meeting of the Electrochemical Society

Y2 - 16 October 2005 through 21 October 2005

ER -