A Finite Length Cylinder Model for Mixed Oxide-Ion and Electron Conducting Cathodes Suited for Intermediate-Temperature Solid Oxide Fuel Cells

被引：5

作者：

Jin, Xinfang ^{[1
]}

Wang, Jie ^{[1
]}

Jiang, Long ^{[1
,2
]}

White, Ralph E. ^{[3
]}

Huang, Kevin ^{[1
]}

机构：

[1] Univ S Carolina, Dept Mech Engn, Columbia, SC 29208 USA

[2] Yangtze Univ, Appl Phys & Informat Technol Res Ctr, Jingzhou 434023, Hubei, Peoples R China

[3] Univ S Carolina, Dept Chem Engn, Columbia, SC 29208 USA

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 2016年 / 163卷 / 06期

关键词：

SOFC CATHODES; 3-DIMENSIONAL RECONSTRUCTION; COULOMETRIC TITRATION; DOPED SRCOO3-DELTA; IMPEDANCE RESPONSE; POTENTIAL CATHODE; OXYGEN REDUCTION; SURFACE-REACTION; LA1-XSRXCOO3-DELTA; KINETICS;

D O I：

10.1149/2.1011606jes

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A physics-based model is presented to simulate the electrochemical behavior of mixed ion and electron conducting (MIEC) cathodes for intermediate-temperature solid oxide fuel cells. Analytic solutions for both transient and impedance models based on a finite length cylinder are derived. These solutions are compared to their infinite length counterparts. The impedance solution is also compared to experimental electrochemical impedance spectroscopy data obtained from both a traditional well-established La0.6Sr0.4Co0.2Fe0.8O3-delta (LSCF) cathode and a new SrCo0.9Nb0.1O3-delta (SCN) porous cathode. The impedance simulations agree well with the experimental values, demonstrating that the new models can be used to extract electro-kinetic parameters of MIEC SOFC cathodes. (C) The Author(s) 2016. Published by ECS. All rights reserved.

引用

页码：F548 / F563

页数：16

共 58 条

[1] Mechanism and kinetics of oxygen reduction on porous La1-xSrxCoO3-δ electrodes [J].

Adler, SB .

SOLID STATE IONICS, 1998, 111 (1-2) :125-134

[2] Electrode kinetics of porous mixed-conducting oxygen electrodes [J].

Adler, SB ;

Lane, JA ;

Steele, BCH .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1996, 143 (11) :3554-3564

[3] A New Family of Mo-Doped SrCoO3-δ Perovskites for Application in Reversible Solid State Electrochemical Cells [J].

Aguadero, A. ;

Perez-Coll, D. ;

Alonso, J. A. ;

Skinner, S. J. ;

Kilner, J. .

CHEMISTRY OF MATERIALS, 2012, 24 (14) :2655-2663

[4] Detailed characterization of anode-supported SOFCs by impedance spectroscopy [J].

Barfod, Rasmus ;

Mogensen, Mogens ;

Klemenso, Trine ;

Hagen, Anke ;

Liu, Yi-Lin ;

Hendriksen, Peter Vang .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2007, 154 (04) :B371-B378

[5] Modeling Impedance Response of SOFC Cathodes Prepared by Infiltration [J].

Bidrawn, F. ;

Kuengas, R. ;

Vohs, J. M. ;

Gorte, R. J. .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2011, 158 (05) :B514-B525

[6]

Bird R. B., 2007, TRANSPORT PHENOMENA, V120

[7]

Carslaw H. S., 1956, CONDUCTION HEAT SOLI

[8]

Carslaw HS., 1986, CONDUCTION HEAT SOLI

[9] New families of Mn+-doped SrCo1-xMxO3-δ perovskites performing as cathodes in solid-oxide fuel cells [J].

Cascos, V. ;

Troncoso, L. ;

Alonso, J. A. .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2015, 40 (34) :11333-11341

[10] New Nb-doped SrCo1-xNbxO3-δ perovskites performing as cathodes in solid-oxide fuel cells [J].

Cascos, V. ;

Martinez-Coronado, R. ;

Alonso, J. A. .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2014, 39 (26) :14349-14354

← 1 2 3 4 5 6 →