Low-temperature constrained sintering of YSZ electrolyte with Bi2O3 sintering sacrificial layer for anode-supported solid oxide fuel cells

2021 ◽  
Author(s):  
Yonghyun Lim ◽  
Hojae Lee ◽  
Junghum Park ◽  
Young-Beom Kim
Keyword(s):  
Fuel Cells ◽  
Low Temperature ◽  
Solid Oxide Fuel Cells ◽  
Sacrificial Layer ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Ysz Electrolyte ◽  
Constrained Sintering

Impedance analysis of thin YSZ electrolyte for low-temperature solid oxide fuel cells

Ionics ◽  
2019 ◽  
Vol 25 (8) ◽  
pp. 3537-3548 ◽  
Author(s):  
Gianfranco DiGiuseppe ◽  
David Thompson ◽  
Cenk Gumeci ◽  
A. Mohammed Hussain ◽  
Nilesh Dale
Keyword(s):  
Fuel Cells ◽  
Low Temperature ◽  
Solid Oxide Fuel Cells ◽  
Impedance Analysis ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Ysz Electrolyte

Strain Effects on Oxygen Reduction Activity of Pr2NiO4 Caused by Gold Bulk Dispersion for Low Temperature Solid Oxide Fuel Cells

2019 ◽  
Vol 2 (2) ◽  
pp. 1210-1220 ◽  
Author(s):  
Sun Jae Kim ◽  
Taner Akbay ◽  
Junko Matsuda ◽  
Atsushi Takagaki ◽  
Tatsumi Ishihara
Keyword(s):  
Fuel Cells ◽  
Low Temperature ◽  
Solid Oxide Fuel Cells ◽  
Oxygen Reduction ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Strain Effects ◽  
Reduction Activity

scholarly journals A Bulk-Heterostructure Nanocomposite Electrolyte of Ce0.8Sm0.2O2-δ–SrTiO3 for Low-Temperature Solid Oxide Fuel Cells

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Yixiao Cai ◽  
Yang Chen ◽  
Muhammad Akbar ◽  
Bin Jin ◽  
Zhengwen Tu ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Ionic Conductivity ◽  
Low Temperature ◽  
Solid Oxide Fuel Cells ◽  
Short Circuit ◽  
Solid Oxide ◽  
Superior Performance ◽  
Electrode Polarization ◽  
Oxide Fuel ◽  
Ac Impedance Analysis

AbstractSince colossal ionic conductivity was detected in the planar heterostructures consisting of fluorite and perovskite, heterostructures have drawn great research interest as potential electrolytes for solid oxide fuel cells (SOFCs). However, so far, the practical uses of such promising material have failed to materialize in SOFCs due to the short circuit risk caused by SrTiO3. In this study, a series of fluorite/perovskite heterostructures made of Sm-doped CeO2 and SrTiO3 (SDC–STO) are developed in a new bulk-heterostructure form and evaluated as electrolytes. The prepared cells exhibit a peak power density of 892 mW cm−2 along with open circuit voltage of 1.1 V at 550 °C for the optimal composition of 4SDC–6STO. Further electrical studies reveal a high ionic conductivity of 0.05–0.14 S cm−1 at 450–550 °C, which shows remarkable enhancement compared to that of simplex SDC. Via AC impedance analysis, it has been shown that the small grain-boundary and electrode polarization resistances play the major roles in resulting in the superior performance. Furthermore, a Schottky junction effect is proposed by considering the work functions and electronic affinities to interpret the avoidance of short circuit in the SDC–STO cell. Our findings thus indicate a new insight to design electrolytes for low-temperature SOFCs.

Effect of Laser-derived Surface Re-melting of YSZ Electrolyte on Performance of Solid Oxide Fuel Cells

2019 ◽  
Vol 6 (2) ◽  
pp. 235-239 ◽  
Author(s):  
Hong Yi Kenneth Tan ◽  
Jong Dae Baek ◽  
Chen-Nan Sun ◽  
Jun Wei ◽  
Seong Hyuk Lee ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Ysz Electrolyte
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