Preparation and Electrical Properties of Interconnect Material Made by Substituting Mixed Rare Earth Oxides (Sm2O3, Gd2O3, Eu2O3 and CeO2) for La2O3 in La

Author(s):  
Hong Hai Zhong ◽  
Ji Gui Cheng ◽  
Xing Qin Liu ◽  
Guang Yao Meng
2015 ◽  
Vol 30 (3) ◽  
pp. 267
Author(s):  
HUANG Lin-Yun ◽  
LI Chen-Hui ◽  
KE Wen-Ming ◽  
SHI Yu-Sheng ◽  
HE Zhi-Yong ◽  
...  

2019 ◽  
Vol 41 (7) ◽  
pp. 119-124
Author(s):  
Miyuki Kouda ◽  
Kuniyuki Kakushima ◽  
Parhat Ahmet ◽  
Kazuo Tsutsui ◽  
Akira Nishiyama ◽  
...  

2007 ◽  
Vol 336-338 ◽  
pp. 448-451
Author(s):  
Hong Hai Zhong ◽  
Ji Gui Cheng ◽  
Xing Qin Liu ◽  
Guang Yao Meng

La1-xCaxCrO3 (0.1≤ x ≤ 0.4) is usually used as interconnect material for solid oxide fuel cells (SOFCs). In this paper, composite material, the two-phase mixtures of face-centered cubic fluorite structure CayCe1-yO2-y (0 ≤ y≤ 0.2) and orthorhombic perovskite structure [Sm(Eu,Gd)]1-zCazCrO3 (0 < z < 0.3), was prepared by an auto-ignition process in which mixed rare earth oxides (Sm2O3, Gd2O3, Eu2O3 and CeO2) are substituted for La2O3 in La1-xCaxCrO3. The direct current (DC) four-probe technique measurement indicated that the electrical conductivities of specimens increased along with the increase of Ca2+ content (x), especially when x=0.3 and 0.4. The material (x=0.4, about 94% relative density) showed excellent electrical conductivities of 48 Scm-1 in air and 13 Scm-1 in H2 (purity 99.999%) at 700°C respectively, which is about 3 times as high as that of La0.7Ca0.3CrO3.


2014 ◽  
Vol 40 (4) ◽  
pp. 5447-5453 ◽  
Author(s):  
Lingling Wei ◽  
Zupei Yang ◽  
Xiaolian Chao ◽  
Huan Jiao

Sign in / Sign up

Export Citation Format

Share Document