scholarly journals Effects of NiO addition on sintering and proton uptake of Ba(Zr,Ce,Y)O3-δ

Author(s):  
Yuanye Huang ◽  
Rotraut Merkle ◽  
Joachim Maier

The effects of 0.125-0.2 wt% NiO added as sintering aid for highly refractory Ba(Zr,Ce,Y)O3-δ proton conducting ceramics are investigated. The complex nature of the solid state reactive sintering method shows...

2014 ◽  
Vol 87 ◽  
pp. 1-5
Author(s):  
Jun Fu Bu ◽  
Pär G. Jönsson ◽  
Zhe Zhao

Protonic conductors of BaZr0.5Ce0.3Ln0.2O3-δ (BZCLn532, Ln=Y, Sm, Gd, Dy) were successfully synthesized by using a cost-effective solid state reactive sintering (SSRS) method with 1 wt.% NiO was added as a sintering aid. The pellets of the BZCLn532 were obtained at sintering temperatures between 1300 - 1600 °C. The results show that the morphologies and the final relative densities of the obtained BZCLn532 pellets are influenced significantly when different sintering temperatures were applied. Densified pellets of the BZCLn532 can be prepared at sintering temperatures of 1600 °C (BaZr0.5Ce0.3Y0.2O3-δ) and 1400 °C (BaZr0.5Ce0.3Sm0.2O3-δ, BaZr0.5Ce0.3Gd0.2O3-δ and BaZr0.5Ce0.3Dy0.2O3-δ,). The conductivity results show that the BaZr0.5Ce0.3Y0.2O3-δ (BZCY532) and BaZr0.5Ce0.3Dy0.2O3-δ (BZCD532) ceramics are demonstrated to be good candidates of oxygen ion conductor and proton conductor materials for intermediate temperature solid oxide fuel cells (IT-SOFCs) applications.


2010 ◽  
Vol 181 (33-34) ◽  
pp. 1486-1498 ◽  
Author(s):  
Jianhua Tong ◽  
Daniel Clark ◽  
Lisa Bernau ◽  
Archana Subramaniyan ◽  
Ryan O'Hayre

2010 ◽  
Vol 20 (30) ◽  
pp. 6333 ◽  
Author(s):  
Jianhua Tong ◽  
Daniel Clark ◽  
Lisa Bernau ◽  
Michael Sanders ◽  
Ryan O'Hayre

RSC Advances ◽  
2018 ◽  
Vol 8 (46) ◽  
pp. 26309-26317 ◽  
Author(s):  
Seongwoo Jeong ◽  
Taisei Kobayashi ◽  
Kosuke Kuroda ◽  
Hyuna Kwon ◽  
Chunyu Zhu ◽  
...  

This paper reports on the survey of power generation characteristics of anode-supported thin film fuel cells with Zr-rich side BaZrxCe0.8–xY0.2O3–δ (x = 0.4, 0.6, 0.7, and 0.8) proton conducting electrolytes.


2020 ◽  
Vol 55 (35) ◽  
pp. 16470-16481
Author(s):  
Changlong Li ◽  
Akihiro Ishii ◽  
Lindsay Roy ◽  
Dale Hitchcock ◽  
Yuqing Meng ◽  
...  

2014 ◽  
Vol 887-888 ◽  
pp. 299-304
Author(s):  
Meng Meng Jia ◽  
Jian Ma

0.95(Na0.95-xKxLi0.05)(Nb0.90Sb0.05Ta0.05)O3-0.05KNbO3 lead-free piezoelectric ceramics were prepared by the conventional solid-state sintering method, the effects of K/Na ratio on the structure and electrical properties of the ceramics were studied in detail. The results show that the addition of the pre-calcined KNbO3 powder as sintering aid is very effective to improve the density and sinterability, and the ceramics could be well sintered at reduced temperature of 1060 °C as compared with the relatively higher sintering temperature of Li, Sb, Ta modified KNN ceramics reported in the literature at 1100-1220 °C. The ceramics with x=0.44 possess the optimal properties: d33=231 pC/N, kp= 47 %, Pr= 22 μC/cm2, and Ec= 11.4 kV/cm.


2013 ◽  
Vol 253 ◽  
pp. 201-210 ◽  
Author(s):  
Stefan Nikodemski ◽  
Jianhua Tong ◽  
Ryan O'Hayre

2015 ◽  
Vol 109 ◽  
pp. 34-37 ◽  
Author(s):  
J. Lyagaeva ◽  
D. Medvedev ◽  
E. Filonova ◽  
A. Demin ◽  
P. Tsiakaras

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