High performance electrode for electrochemical oxygen generator cell based on solid electrolyte ion transport membrane

Wei Zhou; Zongping Shao; Ran Ran; Zhihao Chen; Pingying Zeng; Hongxia Gu; Wanqin Jin; Nanping Xu

doi:10.1016/j.electacta.2007.04.010

High performance electrode for electrochemical oxygen generator cell based on solid electrolyte ion transport membrane

Wei Zhou, Zongping Shao, Ran Ran, Zhihao Chen, Pingying Zeng, Hongxia Gu, Wanqin Jin, Nanping Xu

COLLEGE OF CHEMICAL ENGINEERING

Nanjing Tech University

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

40 Scopus citations

Abstract

A double-layer composite electrode based on Ba_0.5Sr_0.5Co_0.8Fe_0.2O_3-δ + Sm_0.2Ce_0.8O_1.9 (BSCF + SDC) and BSCF + SDC + Ag was investigated to be a promising cathode and also anode for the electrochemical oxygen generator based on samaria doped ceria electrolyte. The Ag particles in the second layer were not only the current collector but also the improver for the oxygen adsorption at the electrode. a.c. impedance results indicated that the electrode polarization resistance, as low as 0.0058 Ω cm² was reached at 800 °C under air. In oxygen generator cell performance test, the electrode resistance dropped to half of the value at zero current density under an applied current density of 2.34 A cm^-2 at 700 °C, and on the same conditions the oxygen generator cell was continual working for more than 900 min with a Faradic efficiency of ∼100%.

Original language	English
Pages (from-to)	6297-6303
Number of pages	7
Journal	Electrochimica Acta
Volume	52
Issue number	22
DOIs	https://doi.org/10.1016/j.electacta.2007.04.010
State	Published - 30 Jun 2007

Keywords

BaSrCoFeO + SmCeO
Composite electrodes
Electrochemical impedance spectra
Electrochemical oxygen generator cell
Solid electrolyte

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10.1016/j.electacta.2007.04.010

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title = "High performance electrode for electrochemical oxygen generator cell based on solid electrolyte ion transport membrane",

abstract = "A double-layer composite electrode based on Ba0.5Sr0.5Co0.8Fe0.2O3-δ + Sm0.2Ce0.8O1.9 (BSCF + SDC) and BSCF + SDC + Ag was investigated to be a promising cathode and also anode for the electrochemical oxygen generator based on samaria doped ceria electrolyte. The Ag particles in the second layer were not only the current collector but also the improver for the oxygen adsorption at the electrode. a.c. impedance results indicated that the electrode polarization resistance, as low as 0.0058 Ω cm2 was reached at 800 °C under air. In oxygen generator cell performance test, the electrode resistance dropped to half of the value at zero current density under an applied current density of 2.34 A cm-2 at 700 °C, and on the same conditions the oxygen generator cell was continual working for more than 900 min with a Faradic efficiency of ∼100%.",

keywords = "BaSrCoFeO + SmCeO, Composite electrodes, Electrochemical impedance spectra, Electrochemical oxygen generator cell, Solid electrolyte",

author = "Wei Zhou and Zongping Shao and Ran Ran and Zhihao Chen and Pingying Zeng and Hongxia Gu and Wanqin Jin and Nanping Xu",

year = "2007",

month = jun,

day = "30",

doi = "10.1016/j.electacta.2007.04.010",

language = "英语",

volume = "52",

pages = "6297--6303",

journal = "Electrochimica Acta",

issn = "0013-4686",

publisher = "Elsevier Ltd",

number = "22",

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TY - JOUR

T1 - High performance electrode for electrochemical oxygen generator cell based on solid electrolyte ion transport membrane

AU - Zhou, Wei

AU - Shao, Zongping

AU - Ran, Ran

AU - Chen, Zhihao

AU - Zeng, Pingying

AU - Gu, Hongxia

AU - Jin, Wanqin

AU - Xu, Nanping

PY - 2007/6/30

Y1 - 2007/6/30

N2 - A double-layer composite electrode based on Ba0.5Sr0.5Co0.8Fe0.2O3-δ + Sm0.2Ce0.8O1.9 (BSCF + SDC) and BSCF + SDC + Ag was investigated to be a promising cathode and also anode for the electrochemical oxygen generator based on samaria doped ceria electrolyte. The Ag particles in the second layer were not only the current collector but also the improver for the oxygen adsorption at the electrode. a.c. impedance results indicated that the electrode polarization resistance, as low as 0.0058 Ω cm2 was reached at 800 °C under air. In oxygen generator cell performance test, the electrode resistance dropped to half of the value at zero current density under an applied current density of 2.34 A cm-2 at 700 °C, and on the same conditions the oxygen generator cell was continual working for more than 900 min with a Faradic efficiency of ∼100%.

AB - A double-layer composite electrode based on Ba0.5Sr0.5Co0.8Fe0.2O3-δ + Sm0.2Ce0.8O1.9 (BSCF + SDC) and BSCF + SDC + Ag was investigated to be a promising cathode and also anode for the electrochemical oxygen generator based on samaria doped ceria electrolyte. The Ag particles in the second layer were not only the current collector but also the improver for the oxygen adsorption at the electrode. a.c. impedance results indicated that the electrode polarization resistance, as low as 0.0058 Ω cm2 was reached at 800 °C under air. In oxygen generator cell performance test, the electrode resistance dropped to half of the value at zero current density under an applied current density of 2.34 A cm-2 at 700 °C, and on the same conditions the oxygen generator cell was continual working for more than 900 min with a Faradic efficiency of ∼100%.

KW - BaSrCoFeO + SmCeO

KW - Composite electrodes

KW - Electrochemical impedance spectra

KW - Electrochemical oxygen generator cell

KW - Solid electrolyte

UR - http://www.scopus.com/inward/record.url?scp=34249333809&partnerID=8YFLogxK

U2 - 10.1016/j.electacta.2007.04.010

DO - 10.1016/j.electacta.2007.04.010

M3 - 文章

AN - SCOPUS:34249333809

SN - 0013-4686

VL - 52

SP - 6297

EP - 6303

JO - Electrochimica Acta

JF - Electrochimica Acta

IS - 22

ER -

High performance electrode for electrochemical oxygen generator cell based on solid electrolyte ion transport membrane

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Keywords

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