Yttrium doping of Ba0.5Sr0.5Co0.8Fe0.2O3-δ part II: Influence on oxygen transport and phase stability
Yttrium doping of Ba0.5Sr0.5Co0.8Fe0.2O3-δ part II: Influence on oxygen transport and phase stability
复制标题
Ba0 5Sr0 5Co0 8Fe0 2O3-δ 钇掺杂第二部分:对氧传输和相稳定性的影响
DOI:
10.1016/j.jeurceramsoc.2017.12.042
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发表时间:
2018
影响因子:
5.7
通讯作者:
E. Ivers-Tiffée
中科院分区:
文献类型:
--
作者:
L.-S. Unger;R. Ruhl;M. Meffert;C. Niedrig;W. Menesklou;S. F. Wagner;D. Gerthsen;H. J. M. Bouwmeester;E. Ivers-Tiffée
Ba0.5Sr0.5Co0.8Fe0.2O3-δ(BSCF) in its cubic perovskite phase has attracted much interest for potential use as oxygen transport membrane (OTM) due to its very high oxygen permeability at high temperatures. However, performance degradation due to a sluggish phase decomposition occurs when BSCF is operated below 840 °C. Partial B-site substitution of the transition metal cations in BSCF by larger and redox-stable cations has emerged as a potential strategy to improve the structural stability of cubic BSCF. In this study, the influence of yttrium doping (0…10 mol-%) on oxygen transport properties and stability of the cubic BSCF phase is assessed byin situelectrical conductivity relaxation (ECR) and electrical conductivity measurements during long-term thermal annealing both at 700 °C and 800 °C. Detailed phase analysis is performed by scanning electron microscopy (SEM) after long-term annealing of the samples in air at different temperatures.
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影响因子:
5.4
作者:
Xiuxia Meng;Bo Meng;X. Tan;Naitao Yang;Zifeng Ma
通讯作者:
Zifeng Ma
影响因子:
2.8
作者:
M. Meffert;H. Störmer;D. Gerthsen
通讯作者:
D. Gerthsen
影响因子:
4
作者:
S. Yakovlev;C. Yoo;Shumin Fang;H. Bouwmeester
通讯作者:
H. Bouwmeester
影响因子:
3.7
作者:
M. Meffert
通讯作者:
M. Meffert
影响因子:
3.7
作者:
U. Pippardt;J. Böer;L. Kiesel;R. Kircheisen;R. Kriegel;I. Voigt
通讯作者:
I. Voigt