Degradation of Solid Oxide Fuel Cell Cathodes Accelerated at a High Water Vapor ConcentrationSource: Journal of Fuel Cell Science and Technology:;2010:;volume( 007 ):;issue: 002::page 21011Author:S. H. Kim
,
K. B. Shim
,
C. S. Kim
,
J. T. Chou
,
T. Oshima
,
Y. Shiratori
,
K. Ito
,
K. Sasaki
DOI: 10.1115/1.3117608Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The influence of water vapor in air on power generation characteristic of solid oxide fuel cells was analyzed by measuring cell voltage at a constant current density, as a function of water vapor concentration at 800°C and 1000°C. Cell voltage change was negligible at 1000°C, while considerable voltage drop was observed at 800°C accelerated at high water vapor concentrations of 20 wt % and 40 wt %. It is considered that La2O3 formed on the (La0.8Sr0.2)0.98MnO3 surface, which is assumed to be the reason for a large voltage drop.
keyword(s): Water vapor , Solid oxide fuel cells AND Electric potential ,
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| contributor author | S. H. Kim | |
| contributor author | K. B. Shim | |
| contributor author | C. S. Kim | |
| contributor author | J. T. Chou | |
| contributor author | T. Oshima | |
| contributor author | Y. Shiratori | |
| contributor author | K. Ito | |
| contributor author | K. Sasaki | |
| date accessioned | 2017-05-09T00:38:34Z | |
| date available | 2017-05-09T00:38:34Z | |
| date copyright | April, 2010 | |
| date issued | 2010 | |
| identifier issn | 2381-6872 | |
| identifier other | JFCSAU-28941#021011_1.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/143660 | |
| description abstract | The influence of water vapor in air on power generation characteristic of solid oxide fuel cells was analyzed by measuring cell voltage at a constant current density, as a function of water vapor concentration at 800°C and 1000°C. Cell voltage change was negligible at 1000°C, while considerable voltage drop was observed at 800°C accelerated at high water vapor concentrations of 20 wt % and 40 wt %. It is considered that La2O3 formed on the (La0.8Sr0.2)0.98MnO3 surface, which is assumed to be the reason for a large voltage drop. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | Degradation of Solid Oxide Fuel Cell Cathodes Accelerated at a High Water Vapor Concentration | |
| type | Journal Paper | |
| journal volume | 7 | |
| journal issue | 2 | |
| journal title | Journal of Fuel Cell Science and Technology | |
| identifier doi | 10.1115/1.3117608 | |
| journal fristpage | 21011 | |
| identifier eissn | 2381-6910 | |
| keywords | Water vapor | |
| keywords | Solid oxide fuel cells AND Electric potential | |
| tree | Journal of Fuel Cell Science and Technology:;2010:;volume( 007 ):;issue: 002 | |
| contenttype | Fulltext |