ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY OF LIQUID TIN ANODE SOLID OXIDE FUEL CELL

被引：1

作者：

Rayman, Sean ^{[1
]}

Koslowske, Mark T. ^{[2
]}

Bateman, Linda ^{[2
]}

Tao, Thomas T. ^{[2
]}

White, Ralph E. ^{[1
]}

机构：

[1] Univ South Carolina, Dept Chem Engn, Columbia, SC 29208 USA

[2] CellTech PowerLLC, Westborough, MA 01581 USA

来源：

BATTERY/ENERGY TECHNOLOGY (GENERAL) - 218TH ECS MEETING | 2011年 / 33卷 / 39期

关键词：

SOFCS; TEMPERATURE; PERFORMANCE; DIFFUSION; CATHODES;

D O I：

10.1149/1.3589924

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Solid oxide fuel cells (SOFCs) can convert the chemical energy stored in hydrocarbon fuels directly into electricity bypassing the many energy transfers that normally occur, (chemical -> heat (steam boiler)-> mechanical (turbine)-> electrical (generator)), when hydrocarbon fuels are combusted to produce electricity. CellTech Power has developed a liquid tin anode (LTA) SOFC that is not damaged by fuels that contain sulfur. This paper develops an analytical electrochemical impedance spectroscopy model from first principals for the the LTA-SOFC anode half cell. The model is in conjunction with experimental data to determine; the average Ohmic resistance, 8.81m Omega, average steady state concentration of tin oxide in liquid tin, 1.09E-9 mol/cm(3), effective diffusion coefficient of tin oxide through liquid tin, 0.198 cm(2)/s, and the pre-exponential factor for the butler volmer equation 2.92E5 C*cm/mol/s.

引用

页码：93 / 121

页数：29

共 28 条

[1] Temperature dependence of the density of liquid tin [J].

Alchagirov, BB ;

Chochaeva, AM .

HIGH TEMPERATURE, 2000, 38 (01) :44-48

[2]

[Anonymous], 1997, CRC Handbook of Chemistry and Physics

[3] Electrochemical investigation of mixed ionic/electronic cathodes for SOFCs [J].

Barbucci, A ;

Carpanese, P ;

Cerisola, G ;

Viviani, M .

SOLID STATE IONICS, 2005, 176 (19-22) :1753-1758

[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]

Barsoukov E, 2005, IMPEDANCE SPECTROSCOPY: THEORY, EXPERIMENT, AND APPLICATIONS, 2ND EDITION, pXII

[6] A new computational approach for SOFC impedance from detailed electrochemical reaction-diffusion models [J].

Bessler, WG .

SOLID STATE IONICS, 2005, 176 (11-12) :997-1011

[7] Structure/performance relations for Ni/yttria-stabilized zirconia anodes for solid oxide fuel cells [J].

Brown, M ;

Primdahl, S ;

Mogensen, M .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2000, 147 (02) :475-485

[8] Electrolytes for solid oxide fuel cells [J].

Fergus, Jeffrey W. .

JOURNAL OF POWER SOURCES, 2006, 162 (01) :30-40

[9]

Goryaga G.I., 1956, VESTNIK MOSKOVSKOGO, V11, P79

[10] Investigation of La0.8Sr0.2CoO3/Ce0.85Sm0.15O2-x cathode performance of solid oxide fuel cell by electrochemical impedance spectroscopy:: Effect of firing temperature [J].

Hunsom, Mali ;

Dunyushkina, Liliya A. ;

Adler, Stuart B. .

KOREAN JOURNAL OF CHEMICAL ENGINEERING, 2006, 23 (05) :720-725

← 1 2 3 →