Solution Precursor Plasma Spray of Nickel-Yittia Stabilized Zirconia Anodes for Solid Oxide Fuel Cell Application

2007 ◽  
Vol 16 (5-6) ◽  
pp. 898-904 ◽  
Author(s):  
Y. Wang ◽  
T. W. Coyle
2005 ◽  
Vol 2 (3) ◽  
pp. 190-196 ◽  
Author(s):  
Xinqing Ma ◽  
Jinxiang Dai ◽  
Heng Zhang ◽  
Jeff Roth ◽  
T. Danny Xiao ◽  
...  

Two plasma spray techniques have been developed to produce membrane-type solid oxide fuel cell (SOFC) units with the advantages of consecutive integrated cell fabrication, high efficiency, good cost effectiveness and microstructure tailoring capability. The atmospheric plasma spray (APS) and solution precursor plasma spray (SPPS) processes have demonstrated their capabilities to produce dense electrolyte layers as well as porous electrode layers that are designed particularly for intermediate temperature SOFCs. With a universal plasma spray system, the integrated fabrication of a dense La0.8Sr0.2Ga0.8Mg0.2O3 electrolyte, a porous La0.8Sr0.2MnO3 cathode and a porous Ni+yttrium stabilized zirconia anode was produced using an optimal APS route. SPPS process has demonstrated more flexibility in materials, microstructures, porosities and overall thickness, and has been used successfully to produce a thin 40mol%La2O3-doped CeO2 (LDC40) interlayer (∼5μm) and a high-porosity Ni+LDC40 anode layer, respectively. In this work we will present the deposition of a variety of electrolyte and electrode layers applied by air plasma spraying or solution precursor plasma spraying. The merits of the two techniques, microstructures of the electrolyte and electrode layers, and performances of the single SOFC units have been evaluated and summarized.


2009 ◽  
Vol 193 (2) ◽  
pp. 706-712 ◽  
Author(s):  
Daniel Storjohann ◽  
James Daggett ◽  
Neal P. Sullivan ◽  
Huayang Zhu ◽  
Robert J. Kee ◽  
...  

Author(s):  
W.T. Ju ◽  
S.H. Hong

Abstract The atmospheric pressure plasma spray processes for functional layers of the tubular solid oxide fuel cell are developed to build a fuel cell structure consisting of air electrode, ceramic electrolyte, and fuel electrode. Further more the characteristics of each film are also investigated. The layers of LSM (La0.65Sr0.35MnO3) air electrode and Ni/8YSZ fuel electrode have porosities of 23 ~32 % sufficient for supplying fuel and oxidant gases efficiently to electrochemical reaction interfaces. The measured electrical conductivities of the electrodes are higher than 90 S/cm at 1000 °C, which satisfy the requirement as the current collecting electrodes. The YSZ electrolyte film has a high ionic conductivity of 0.07 S/cm at 1000 °C, but shows a bit too porous to block the oxygen molecule penetration through it. A unit tubular SOFC is fabricated by the optimized plasma spray processes for depositing each functional film and forming a porous cylindrical supporting tube of the cell, and turns out to have a promising capability of electricity generation.


2015 ◽  
Vol 41 (6) ◽  
pp. 7982-7988 ◽  
Author(s):  
Jin Goo Lee ◽  
Ok Sung Jeon ◽  
Kwang Hyun Ryu ◽  
Myeong Geun Park ◽  
Sung Hwan Min ◽  
...  

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