Quantitative analysis of ceria co-doped with samarium and gadolinium using laser-induced breakdown spectroscopy

2022 ◽  
Author(s):  
Sandeep Kumar ◽  
Jeong Park ◽  
Chung-Yul Yoo ◽  
Sang-Ho Nam ◽  
Yonghoon Lee
Keyword(s):  
Quantitative Analysis ◽  
Solid Oxide Fuel Cells ◽  
Solid Oxide ◽  
Laser Induced Breakdown Spectroscopy ◽  
Doped Ceria ◽  
Oxide Fuel ◽  
Breakdown Spectroscopy ◽  
Lanthanide Cations ◽  
Laser Induced Breakdown ◽  
Co Doped

Ceria doped with low-valence lanthanide cations has been introduced for the use of electrolytes in solid oxide fuel cells (SOFCs). Improving performances of SOFCs using the doped ceria requires increase...

scholarly journals Study on Gd and Mg co-doped ceria electrolyte for intermediate temperature solid oxide fuel cells

2004 ◽  
Vol 97 (2-3) ◽  
pp. 189-194 ◽  
Author(s):  
Feng-Yun Wang ◽  
Songying Chen ◽  
Qin Wang ◽  
Shuxin Yu ◽  
Soofin Cheng
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Solid Oxide ◽  
Intermediate Temperature ◽  
Doped Ceria ◽  
Oxide Fuel ◽  
Co Doped ◽  
Ceria Electrolyte

An efficient Sm and Ge co-doped ceria nanocomposite electrolyte for low temperature solid oxide fuel cells

2018 ◽  
Vol 44 (1) ◽  
pp. 170-174 ◽  
Author(s):  
Muhammad Sarfraz Arshad ◽  
Rizwan Raza ◽  
M. Ashfaq Ahmad ◽  
Ghazanfar Abbas ◽  
Amjad Ali ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Low Temperature ◽  
Solid Oxide Fuel Cells ◽  
Solid Oxide ◽  
Doped Ceria ◽  
Oxide Fuel ◽  
Nanocomposite Electrolyte ◽  
Co Doped

Enhanced sulfur and carbon coking tolerance of novel co-doped ceria based anode for solid oxide fuel cells

2012 ◽  
Vol 201 ◽  
pp. 128-135 ◽  
Author(s):  
Xiaoliang Zhou ◽  
Jiangman Zhen ◽  
Limin Liu ◽  
Xiaokun Li ◽  
Naiqing Zhang ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Solid Oxide ◽  
Doped Ceria ◽  
Oxide Fuel ◽  
Co Doped

Some Structural Aspects of Ionic Conductivity in Co-Doped Ceria-Based Electrolytes

2013 ◽  
Vol 58 (4) ◽  
pp. 1355-1359 ◽  
Author(s):  
M. Dudek
Keyword(s):  
Solid Solution ◽  
Chemical Composition ◽  
Ionic Conductivity ◽  
Solid Oxide Fuel Cells ◽  
Solid Solutions ◽  
Transference Number ◽  
Solid Oxide ◽  
Doped Ceria ◽  
Oxide Fuel ◽  
Co Doped

Abstract The sinters of co-doped ceria solid solutions with the formula of Ce0.85Sm0.15-x RxO1.9, where R = Y, Gd, Pr, Tb, Ox-0.15, were obtained from powders synthesised by Pechini method. The linear variation of cell parameter a vs. chemical composition was observed for Ce0.85Sm0:15-xRxO1.9, where R = Y, Gd, Tb, 0 <x<0.15 samples. However, the introduction of Pr3+ into Ce0.85Sm0.15-x PrxO1.9 caused a small deviation from linearity due to possible changes in the valence from Pr3+ to Pr4+. The determined values of oxide transference number tion for Ce0.85Sm0.15-xRxO1.9, R = Y, Gd in the temperature range 400-750°C and partial oxygen pressure from 10-6 to 1 atm were close to 1, which indicated that materials investigated exhibited practically pure ionic oxide conductivity. On the other hand, the introduction of Tb3+ or Pr3+ higher than x>0.05 into solid solution Ce0.85Sm0.15-xRxO1.9, R = Tb, Pr caused a decrease in the ionic transference number tion below 1 due to an increase in partial electronic conduction. This fact limiting investigated co-doped terbia and samaria or samaria and praseodymia ceria-based solid solutions for the further application as oxide electrolytes in solid oxide fuel cells. The analysis of bulk and grain boundary values indicated that partial substitution of Sm3+ by Y3+ or Gd3+ caused slight improvements in the ionic conductivity of Ce0.85Sm0.15-xRxO1.9. The highest ionic conductivity was found for solid solution with chemical composition Ce0.85Sm0.1Y0.05O1.9. The selected co-doped ceria samples were tested as solid electrolytes in solid oxide fuel cells operating in the intermediate temperature range 500-750°C.

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