scholarly journals Investigating Effects of Operational Parameters on the Rate of Electrochemical Cleaning of Chromium Deposits on Strontium-Doped Lanthanum Manganite Cathodes in Solid Oxide Fuel Cells

2021 ◽  
Vol MA2021-03 (1) ◽  
pp. 70-70
Author(s):  
Michelle Sugimoto ◽  
Zhikuan Zhu ◽  
Srikanth Gopalan ◽  
Soumendra Basu ◽  
Uday Pal
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Solid Oxide ◽  
Lanthanum Manganite ◽  
Oxide Fuel ◽  
Operational Parameters ◽  
Electrochemical Cleaning

Exploration of Electrophoretic Deposition of YSZ Electrolyte for Solid Oxide Fuel Cells

2004 ◽  
Vol 835 ◽  
Author(s):  
Zhigang Xu ◽  
Gukan Rajaram ◽  
Jag Sankar
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Electrophoretic Deposition ◽  
Solid Oxide ◽  
Lanthanum Manganite ◽  
Oxide Fuel ◽  
Temperature Observation ◽  
Materials Used ◽  
Ysz Electrolyte ◽  
Deposited Films

ABSTRACTThe suspensions of yttria stabilized zirconia (YSZ) were prepared in pure acetylacetone and ethanol and their mixtures. In all of the suspensions, YSZ thin films were obtained using electrophoretic deposition technique on the substrates of stainless steel and porous strontium-doped lanthanum manganite (LSM) which is a typical cathode materials used in solid oxide fuel cells (SOFCs). The deposition behavior in the different suspensions was studied. The deposited films were dried at room temperature and then sintered at high temperature. Observation with scanning electron microscopy (SEM) showed the sintered YSZ were of high density.

Solid Oxide Fuel Cells: Strontium-Doped Lanthanum Manganite Obtained by the Citrate Technique

2006 ◽  
Vol 530-531 ◽  
pp. 643-648
Author(s):  
Rubens Chiba ◽  
Reinaldo Azevedo Vargas ◽  
Marco Andreoli ◽  
Emília Satoshi Miyamaru Seo
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Electronic Conductivity ◽  
Average Diameter ◽  
Solid Oxide ◽  
Gas Absorption ◽  
Lanthanum Manganite ◽  
Oxide Fuel ◽  
Laser Scattering ◽  
X Ray

Nowadays, the La1-XSrXMnO3 (LSM) is one of the most common cathodic materials used in the solid oxide fuel cells (SOFCs). The dopant strontium increases the electronic conductivity of the material, besides presents an excellent electrochemical performance, relatively good chemical and thermal stability and compatibility with solid electrolyte of ZrO2/Y2O3 (YSZ). In this work, a contribution to the study of synthesis of LSM is presented with strontium concentration of 50 mol % by the citrate technique. The powders have been characterized for various techniques, as gas absorption and adsorption, X-ray fluorescence spectroscopy, laser scattering granulometry, gas helium picnometry, scanning electron microscopy (SEM), X-ray diffractometry (XRD) and calculations of theoretical density and particle average diameter. The ceramics have been characterized by SEM and XRD. The adequate characteristics of LSM have been evaluated aiming at the use in the preparation of suspensions for cathodic thin films of SOFCs.

Solid Oxide Fuel Cells: Strontium-Doped Lanthanum Manganite Obtained by the Citrate Technique

2006 ◽  
pp. 643-648
Author(s):  
Rubens Chiba ◽  
Reinaldo Azevedo Vargas ◽  
Marco Andreoli ◽  
Emília Satoshi Miyamaru Seo
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Solid Oxide ◽  
Lanthanum Manganite ◽  
Oxide Fuel

scholarly journals SYNTHESIS AND CHARACTERIZATION OF LSM/SDC FILMS AS COMPOSITE CATHODES FOR SOLID OXIDE FUEL CELLS

2010 ◽  
Vol 07 (14) ◽  
pp. 16-22
Author(s):  
Moisés Rômolos CESÁRIO ◽  
Daniel Araújo MACEDO ◽  
Bráulio Silva BARROS ◽  
Patrícia Mendonça PIMENTEL ◽  
Marcus Antonio de Feitas MELO ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Ethyl Cellulose ◽  
Pechini Method ◽  
Composite Cathode ◽  
Solid Oxide ◽  
Lanthanum Manganite ◽  
Oxide Fuel ◽  
Large Area ◽  
Composite Cathodes

The study of the strontium-doped lanthanum manganites in the form of films covers a large area of technological applications, such as ceramics semiconductors and solid oxide fuel cell cathode. Strontium-doped lanthanum manganite and samarium-doped ceria has been used as composite cathode of solid oxide fuel cells (SOFCs) because of its excellent performance in electronic and ionic conductivity. In this work, we produced films of the cathode LSM / SDC on yttria stabilized zirconia (YSZ) electrolytes. La0.8Sr0.2MnO3 (LSM) and Ce0.8Sm0.2O1.9 (SDC) powders were synthesized by a synthesis route similar to the Pechini method, in which the gelatin replaced the ethylene glycol as polymerizing agent. Precursor powders of LSM and SDC phases were calcined at 900 ºC. In the step of films production were prepared suspensions of the LSM and SDC powders with addition of ethyl cellulose as a pore-forming agent. The ceramic suspensions were deposited on YSZ electrolyte using the spin coating method. After sintering to 1150 °C for 4 h the films were characterized by XRD and SEM. The film with 10 wt.% ethyl cellulose presented porous and strongly adhered to the YSZ substrate.

Effect of Cathode Microstructure on the Cathode Polarization in the Sintered Strontium-Doped Lanthanum Manganite/Yttria Stabilized Zirconia Solid Oxide Fuel Cells

2008 ◽  
Vol 14 (S2) ◽  
pp. 1442-1443 ◽  
Author(s):  
A Chen ◽  
J Smith ◽  
RT DeHoff ◽  
ED Wachsman ◽  
GR Bourne ◽  
...  
Keyword(s):  
Fuel Cells ◽  
New Mexico ◽  
Solid Oxide Fuel Cells ◽  
Solid Oxide ◽  
Yttria Stabilized Zirconia ◽  
Lanthanum Manganite ◽  
Oxide Fuel ◽  
Stabilized Zirconia ◽  
Cathode Polarization

Extended abstract of a paper presented at Microscopy and Microanalysis 2008 in Albuquerque, New Mexico, USA, August 3 – August 7, 2008

Sign in / Sign up

Export Citation Format

Share Document