Grain size-dependent electrical properties of La1.95Sr0.05Zr2O7-δ as potential Proton Ceramic Fuel Cell electrolyte

2016 ◽  
Vol 298 ◽  
pp. 35-43 ◽  
Author(s):  
Da Huo ◽  
Gianguido Baldinozzi ◽  
David Siméone ◽  
Hicham Khodja ◽  
Suzy Surblé
2020 ◽  
Vol MA2020-02 (40) ◽  
pp. 2642-2642
Author(s):  
Yuji Okuyama ◽  
Tomohiro Kuroha ◽  
Yamauchi Kosuke ◽  
Yuichi Mikami ◽  
Hiroyuki Shimada ◽  
...  

2016 ◽  
Vol 41 (28) ◽  
pp. 12330-12336 ◽  
Author(s):  
Gilles Taillades ◽  
Paul Pers ◽  
Visot Mao ◽  
Mélanie Taillades

2015 ◽  
Vol 60 (2) ◽  
pp. 989-992
Author(s):  
R. Gawel ◽  
K. Przybylski

Abstract The aim of this work is to compare the electrical properties of BaCe0.85Y0.15O3−δ (BCY15), BaCe0.70In0.30O3−δ (BCI30) and a composite material consisting of 30%vol. BCY15 and 70%vol. Ce0.85Y0.15O2−δ (YDC15). BCY15 and YDC15 were synthesized by co-precipitation, whereas BCI30 was obtained using the solid-state reaction method. Pellets were initially formed from powders at 5 MPa, after which they were isostatically pressed at 250 MPa and sintered at 1500°C. Electrochemical impedance spectroscopy (EIS) was used to determine the electrical properties of the samples in both air (pO2 = 0.021 MPa) and Ar-5%H2 atmospheres. In the temperature range 200-400°C in air atmosphere the highest conductivity values were determined for BCY15 (5,22·10−5 − 2.74·10−3 S/cm). On the other hand, the electrical conductivity values obtained for Y70B30 in both atmospheres between 200 and 550°C are in the order of magnitude of 10−7 − 10−3 S/cm. Consequently, it can be concluded that the compounds exhibit significant H+ and O2− electrical conductivity at temperatures above 500°C, which indicates the possibility for their potential use as ceramic fuel cell electrolytes.


2014 ◽  
Vol 39 (35) ◽  
pp. 20829-20836 ◽  
Author(s):  
Yuji Okuyama ◽  
Kenji Okuyama ◽  
Yasunobu Mizutani ◽  
Takaaki Sakai ◽  
Young Sung Lee ◽  
...  

2011 ◽  
Vol 196 (3) ◽  
pp. 1036-1041 ◽  
Author(s):  
Xian-Zhu Fu ◽  
Xiao-Xiong Luo ◽  
Jing-Li Luo ◽  
Karl T. Chuang ◽  
Alan R. Sanger ◽  
...  

2016 ◽  
Author(s):  
Aarti Shukla ◽  
Vanshree Parey ◽  
N. K. Gaur

Sign in / Sign up

Export Citation Format

Share Document