Highly active and CO2-tolerant Sr2Fe1.3Ga0.2Mo0.5O6-δ cathode for intermediate-temperature solid oxide fuel cells

2020 ◽  
Vol 450 ◽  
pp. 227722 ◽  
Author(s):  
Chunming Xu ◽  
Kening Sun ◽  
Xiaoxia Yang ◽  
Minjian Ma ◽  
Rongzheng Ren ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Solid Oxide ◽  
Intermediate Temperature ◽  
Oxide Fuel ◽  
Highly Active

A highly active and stable cathode for oxygen reduction in intermediate-temperature solid oxide fuel cells

2020 ◽  
Vol 4 (3) ◽  
pp. 1168-1179 ◽  
Author(s):  
Xifeng Ding ◽  
Mingze Li ◽  
Xinyu Zhao ◽  
Liming Ding ◽  
Yufei Yan ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Oxygen Reduction ◽  
Solid Oxide ◽  
Intermediate Temperature ◽  
Oxide Fuel ◽  
New Family ◽  
Highly Active

A new family of SrCo0.9−xNb0.1NixO3−δ (SCNN, 0.1≤ x ≤ 0.3) perovskites as promising cathode for intermediate temperature solid oxide fuel cells (IT-SOFCs) with improved cathode attributes has been developed with proper nickel substitution.

Ni-Fe Bimetallic Anode for Intermediate Temperature Solid Oxide Fuel Cells Using LaGaO3 Based Oxide Electrolyte

2007 ◽  
Vol 539-543 ◽  
pp. 1350-1355 ◽  
Author(s):  
Tatsumi Ishihara ◽  
Masashi Shinagawa ◽  
Akira Kawakami ◽  
Hiroshige Matsumoto
Keyword(s):  
Activation Energy ◽  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Solid Oxide ◽  
Intermediate Temperature ◽  
High Dispersion ◽  
Oxide Fuel ◽  
Anodic Reaction ◽  
Highly Active ◽  
Oxide Electrolyte

Effects of various additives to Ni anode on SOFC using La0.9Sr0.1Ga0.8Mg0.2O3 based oxide were investigated in this study. Among the examined additives, it was found that the addition of small amount of Fe is highly effective for increasing the anodic activity. When 5 wt% Fe was added to Ni anode, the anodic overpotential was as small as 34 mV at 873 K, 0.1A/cm2, which is almost half of pure Ni anode. Since the estimated activation energy for anodic reaction decreased, addition of Fe to Ni seems to be effective for increasing the activity of Ni for anodic reaction. XRD measurement after power generating property suggests that added Fe was formed alloy with Ni. SEM observation shows the high dispersion of Ni metal was sustained by addition of small amount of Fe. Consequently, this study reveals that Ni-Fe bimetal is highly active for anodic reaction of SOFCs at decreased temperature.

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