Bismuth doping effects on the structure, electrical conductivity and oxygen permeability of Ba0.6Sr0.4Co0.7Fe0.3O3−δ ceramic membranes

2012 ◽  
Vol 37 (17) ◽  
pp. 12694-12699 ◽  
Author(s):  
Jianying Yang ◽  
Hailei Zhao ◽  
Xiaotong Liu ◽  
Yongna Shen ◽  
Lihua Xu
Keyword(s):  
Electrical Conductivity ◽  
Oxygen Permeability ◽  
Ceramic Membranes ◽  
Doping Effects ◽  
Bismuth Doping

Structure, electrical conductivity and oxygen permeability of Ba0.6Sr0.4Co1−xTixO3−δ ceramic membranes

2012 ◽  
Vol 89 ◽  
pp. 16-21 ◽  
Author(s):  
Nansheng Xu ◽  
Hailei Zhao ◽  
Yongna Shen ◽  
Ting Chen ◽  
Weizhong Ding ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Oxygen Permeability ◽  
Ceramic Membranes

Oxygen permeability of LaGaO3-based ceramic membranes

2003 ◽  
Vol 221 (1-2) ◽  
pp. 69-77 ◽  
Author(s):  
A.L. Shaula ◽  
A.A. Yaremchenko ◽  
V.V. Kharton ◽  
D.I. Logvinovich ◽  
E.N. Naumovich ◽  
...  
Keyword(s):  
Oxygen Permeability ◽  
Ceramic Membranes

Ceramic composite membranes based on Bi3Ru3O11 – Bi1,6Er0,4O3 for obtaining of oxygen

2021 ◽  
Vol 6 ◽  
pp. 22-28
Author(s):  
P. E. Dergacheva ◽  
◽  
I. V. Kulbakin ◽  
S. V. Fedorov ◽  
A. S. Lysenkov ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Ceramic Composite ◽  
Oxygen Permeability ◽  
Total Porosity ◽  
Composite Membranes ◽  
Ceramic Composites ◽  
Argon Atmosphere ◽  
Pure Oxygen ◽  
Total Conductivity ◽  
Temperature Dependence Of Conductivity

Using hot uniaxial pressing in an argon atmosphere with a stress of 35 MPa and with a holding at 800 °C for 1 hour, ceramic composites of Bi3Ru3O11 – 50, 65 wt % Bi1,6Er0,4O3 were obtained. It was found that phase composition of the composites does not change during gas chromatographic testing at 800 °C and well corresponds to the specified one. Microstructure of the obtained composites was tested and the formation of dense composites with a total porosity of less than 1% and with a uniform distribution of the Bi3Ru3O11 and Bi1,6Er0,4O3 components in bulk of material was demonstrated. Transport properties (total conductivity, oxygen fluxes and selectivity of separating oxygen over nitrogen) of the obtained composites at 600 – 800 °C had been investigated. Thus, at 800 °C the electrical conductivity of Bi3Ru3O11 – 50, 65 wt % Bi1,6Er0,4O3 was about 200 and 50 Ohm–1∙cm–1, respectively, while the metallic nature of their temperature dependence of conductivity is correlated to that for the Bi3Ru3O11. The value of oxygen permeability for the obtained ceramic composites of about 7∙10–9 mol·cm–1·s–1 at 800 °C, which is compared to other membrane materials based on bismuth oxide, demonstrated the potential of their further use in the tasks for obtaining of pure oxygen from air.

Oxygen permeability and stability of asymmetric multilayer Ba0.5Sr0.5Co0.8Fe0.2O3−δ ceramic membranes

2011 ◽  
Vol 192 (1) ◽  
pp. 677-681 ◽  
Author(s):  
A.V. Kovalevsky ◽  
A.A. Yaremchenko ◽  
V.A. Kolotygin ◽  
F.M.M. Snijkers ◽  
V.V. Kharton ◽  
...  
Keyword(s):  
Oxygen Permeability ◽  
Ceramic Membranes

Structural stability and oxygen permeability of BaCo1−xNbxO3−δ ceramic membranes for air separation

2015 ◽  
Vol 638 ◽  
pp. 38-43 ◽  
Author(s):  
Chengzhang Wu ◽  
Yongqian Gai ◽  
Jianfang Zhou ◽  
Xia Tang ◽  
Yunwen Zhang ◽  
...  
Keyword(s):  
Structural Stability ◽  
Oxygen Permeability ◽  
Ceramic Membranes ◽  
Air Separation

Systematic investigation on structure stability and oxygen permeability of Sr-doped BaCo0.7Fe0.2Nb0.1O3−δ ceramic membranes

2010 ◽  
Vol 362 (1-2) ◽  
pp. 460-470 ◽  
Author(s):  
Yuan Li ◽  
Hailei Zhao ◽  
Nansheng Xu ◽  
Yongna Shen ◽  
Xionggang Lu ◽  
...  
Keyword(s):  
Oxygen Permeability ◽  
Ceramic Membranes ◽  
Systematic Investigation ◽  
Structure Stability

Oxygen permeability of Sr1-x Ce x Co0.2Fe0.8O3-δ ceramic membranes

2000 ◽  
Vol 36 (8) ◽  
pp. 849-854 ◽  
Author(s):  
V. V. Vashuk ◽  
S. I. Pytlev ◽  
O. P. Ol’shevskaya ◽  
L. V. Kokhanovskii ◽  
E. I. Shkol’nikov ◽  
...  
Keyword(s):  
Oxygen Permeability ◽  
Ceramic Membranes
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