Ni–YSZ-supported tubular solid oxide fuel cells with GDC interlayer between YSZ electrolyte and LSCF cathode

2014 ◽  
Vol 39 (24) ◽  
pp. 12894-12903 ◽  
Author(s):  
Seung-Young Park ◽  
Jee Hyun Ahn ◽  
Chang-Woo Jeong ◽  
Chan Woong Na ◽  
Rak-Hyun Song ◽  
...  
Author(s):  
Hong Yi Kenneth Tan ◽  
Jong Dae Baek ◽  
Chen-Nan Sun ◽  
Jun Wei ◽  
Seong Hyuk Lee ◽  
...  

2010 ◽  
Vol 35 (17) ◽  
pp. 9455-9459 ◽  
Author(s):  
Tahereh Talebi ◽  
Mohsen Haji ◽  
Babak Raissi ◽  
Amir Maghsoudipour

2011 ◽  
Vol 41 (12) ◽  
pp. 1871-1876
Author(s):  
HuanGang SHI ◽  
Chao LI ◽  
ZongPing SHAO ◽  
BinBin YANG

2014 ◽  
Vol 11 (3) ◽  
Author(s):  
Shan-Lin Zhang ◽  
Cheng-Xin Li ◽  
Chang-Jiu Li

Atmospheric plasma spraying was employed to prepare anode, cathode, and Y2O3-stabilized ZrO2 (YSZ) electrolyte to aim at reducing manufacturing cost. YSZ electrolytes were deposited on the anode at different deposition temperatures of 200 °C, 400 °C and 600 °C to optimize the gas tightness of plasma-sprayed YSZ electrolyte. The influences of the deposition temperature on the microstructure and gas-tightness of plasma-sprayed YSZ electrolyte were investigated. The effect of microstructure and the gas-tightness of YSZ electrolyte on the open circuit voltage and the output performance of solid oxide fuel cells (SOFCs) were examined. The results showed with the increase of deposition temperature, the porosity of YSZ electrolytes almost decreased by about 80% and the microstructure of YSZ electrolytes changed from the typical lamellar structure to the continuous columnar crystal structure. At a deposition temperature of 600 °C the gas permeability decreased to 1.5 × 10−7 cm4gf−1s−1, and the highest open circuit voltage can reach 1.026 V, indicating the applicability of the as-sprayed YSZ directly to the SOFC electrolyte.


Ionics ◽  
2019 ◽  
Vol 25 (8) ◽  
pp. 3537-3548 ◽  
Author(s):  
Gianfranco DiGiuseppe ◽  
David Thompson ◽  
Cenk Gumeci ◽  
A. Mohammed Hussain ◽  
Nilesh Dale

2016 ◽  
Vol 685 ◽  
pp. 776-780
Author(s):  
Andrey A. Solovyev ◽  
Anastasya N. Kovalchuk ◽  
Igor V. Ionov ◽  
S.V. Rabotkin ◽  
Anna V. Shipilova ◽  
...  

Reducing the operating temperature of solid oxide fuel cells (SOFCs) from 800-1000°C is one of the main SOFC research goals. It can be achieved by lowering the thickness of an electrolyte (ZrO2:Y2O3 (YSZ) is widely used as electrolyte material). On the other hand the problem can be solved by using of another electrolyte material with high ionic conductivity at intermediate temperatures. Therefore the present study deals with magnetron sputtering of ceria gadolinium oxide (CGO), which has a higher conductivity compared to YSZ. The microstructure of CGO layers deposited on porous NiO/YSZ substrates by reactive magnetron sputtering of Ce:Gd cathode is investigated. Current voltage characteristics (CVC) of a fuel cell with NiO/YSZ anode, CGO electrolyte and LSCF/CGO cathode were obtained. It was shown that the power density of a fuel cell with CGO electrolyte weakly depends on the operating temperature in the range of 650-750°C in contradistinction to YSZ electrolyte, and is about 600-650 mW/cm2.


2007 ◽  
Vol 428 (1-2) ◽  
pp. 302-306 ◽  
Author(s):  
Yaohui Zhang ◽  
Xiqiang Huang ◽  
Zhe Lu ◽  
Zhiguo Liu ◽  
Xiaodong Ge ◽  
...  

2006 ◽  
Vol 45 ◽  
pp. 1857-1863 ◽  
Author(s):  
Teruhisa Horita ◽  
Haruo Kishimoto ◽  
Katsuhiko Yamaji ◽  
Natsuko Sakai ◽  
Yue Ping Xiong ◽  
...  

The electrochemical reaction of solid oxide fuel cells (SOFCs) was reviewed in terms of mass and charge transports of reaction species around the electrode/electrolyte interfaces. Oxygen reduction and fuel oxidation were analyzed by isotope labeling and secondary ion mass spectrometry as well as conventional electrochemical method. The SIMS images after 18O2 (stable isotope oxygen) labeling suggested that the O2/cathode/electrolyte interfaces were the most active parts for oxygen reduction and incorporation. The widths of active parts of oxygen reduction were about several 100 to some 1000 nm different depending on the cathode materials and reaction mechanism. The isotope labeling-SIMS technique was also applied to visualize the active parts for CH4 decomposition and carbon deposition around the anode metal/electrolyte oxide interfaces. The active parts for carbon deposition were only on the Ni surface on YSZ electrolyte. The effect of substrate oxide on the carbon deposition was also examined at the mesh-shaped metal/oxide interfaces.


2008 ◽  
Vol 202 (12) ◽  
pp. 2654-2660 ◽  
Author(s):  
Chao Zhang ◽  
Chang-Jiu Li ◽  
Hanlin Liao ◽  
Marie-Pierre Planche ◽  
Cheng-Xin Li ◽  
...  

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