Synthesis and Processing of Perovskite Oxides for Solid Oxide Fuel Cells Anode Fabrication

2006 ◽  
Vol 45 ◽  
pp. 1864-1868
Author(s):  
Dario Montinaro ◽  
Massimo Bertoldi ◽  
Vincenzo M. Sglavo

In the present work materials alternative to Ni/YSZ cermets anodes for Solid Oxide Fuel Cells (SOFCs) have been studied in order to overcome the problems related to catalytic deposition of carbon and the limited tolerance to sulphur. Anodes consisting of (La0.75Sr0.25)(Cr0.5Mn0.5)O3-δ (LSCM25) have been investigated with regard to synthesis and processing related problems. Single phase LSCM25 perovskites were synthesized by urea/nitrates gel combustion method and the as prepared powders were used to produce green tapes by tape casting processing. Thick LSCM25 substrates, suitable as anodes in anode supported SOFC fabrication, were successfully obtained by sintering of green LSCM25 laminates.

Author(s):  
Haoran Wang ◽  
Ze Lei ◽  
Han Zhang ◽  
Yongkang Li ◽  
Junmeng Jing ◽  
...  

Abstract A water-based tape casting slurry is reported to prepare the ceria and scandia co-doped zirconia (ScSZ) electrolyte films. The slurry is characterized and optimized through Zeta potential and rheological property measurements. Smooth and flat ScSZ electrolyte films are obtained by improving the sintering process. The microstructure, electrical performance, and mechanical property of ScSZ with adding different contents of Al2O3 are also investigated. The results show that a proper amount of Al2O3 has a beneficial effect on the densification of ScSZ. Significant decrease at the grain boundary resistance of ScSZ is observed by Al2O3 addition. The bending strength of the sample with 0.5 wt.% Al2O3 (ScSZ-0.5A) is about 400 MPa, which is 20% higher than pure ScSZ. The ScSZ-0.5A electrolyte film fabricated by water-based tape casting method shows appropriate electrical conductivity and high mechanical strength, which is promising for the practical application in solid oxide fuel cells (SOFCs).


2016 ◽  
Vol 41 (40) ◽  
pp. 18203-18206 ◽  
Author(s):  
Juan Zhou ◽  
Qinglin Liu ◽  
Lan Zhang ◽  
Siew Hwa Chan

2017 ◽  
Vol 78 (1) ◽  
pp. 773-781
Author(s):  
Yu-Ming Chen ◽  
Tai-Nan Lin ◽  
Ming-Wei Liao ◽  
Hong-Yi Kuo ◽  
Chun-Yen Yeh ◽  
...  

2011 ◽  
Vol 1 (6) ◽  
pp. 1094-1096 ◽  
Author(s):  
Shouguo Huang ◽  
Qiliang Lu ◽  
Shuangjiu Feng ◽  
Guang Li ◽  
Chunchang Wang

2014 ◽  
Vol 5 (3) ◽  
pp. 273-278 ◽  
Author(s):  
J. F. Beltran-Lopez ◽  
M. A. Laguna-Bercero ◽  
J. Gurauskis ◽  
J. I. Peña

Author(s):  
Changsheng Ding ◽  
Hongfei Lin ◽  
Kazuhisa Sato ◽  
Toshiyuki Hashida

La0.8Sr0.2Co0.8Fe0.2O3 (LSCF) nanopowders, which are being investigated as a promising cathode material for low-temperature solid oxide fuel cells (SOFCs), were synthesized by citric acid gel combustion method. The LSCF nanopowders synthesized at 700°C are single perovskite phases and have an average particle size of less than 30 nm. In order to evaluate the use of the synthesized LSCF nanopowders as cathode material of low-temperature SOFCs, anode-supported SOFCs were fabricated from the synthesized LSCF nanopowders and tested in the conditions of humidified hydrogen for anode and oxygen for cathode. The anode-supported single cell with the LSCF cathode sintered at 700°C showed high electrical performance with the maximum power density of 771 mW cm−2 at 600°C. The results show that the synthesized LSCF nanopowders are suitable to be applied as cathode material for low-temperature SOFCs.


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