Effects of surface modification on the oxygen permeation of Ba0.5Sr0.5Co0.8Fe0.2O3−δ membrane

2014 ◽  
Vol 462 ◽  
pp. 147-152 ◽  
Author(s):  
Yoshiaki Hayamizu ◽  
Manami Kato ◽  
Hitoshi Takamura
Keyword(s):  
Surface Modification ◽  
Oxygen Permeation

La0.6Sr0.4Co0.2Fe0.8O3−δ hollow fibre membrane performance improvement by coating of Ba0.5Sr0.5Co0.9Nb0.1O3−δ porous layer

RSC Advances ◽  
2014 ◽  
Vol 4 (38) ◽  
pp. 19999-20004 ◽  
Author(s):  
Dezhi Han ◽  
Jinhu Wu ◽  
Zifeng Yan ◽  
Kun Zhang ◽  
Jian Liu ◽  
...  
Keyword(s):  
Surface Modification ◽  
Performance Improvement ◽  
Porous Layer ◽  
Hollow Fibre ◽  
Oxygen Permeation ◽  
Hollow Fibre Membrane ◽  
Membrane Performance ◽  
Fibre Membrane

The oxygen permeation performance of perovskite La0.6Sr0.4Co0.2Fe0.8O3−δ (LSCF) hollow fibre membranes was enhanced by surface modification via coating of a Ba0.5Sr0.5Co0.9Nb0.1O3−δ (BSCN) porous layer.

Oxygen Permeability of Ba0.5Sr0.5Co0.8Fe0.2O5+δMembrane after Surface Modification

2013 ◽  
Vol 275-277 ◽  
pp. 2394-2397
Author(s):  
Zi Gang Shen ◽  
Dong Li
Keyword(s):  
Surface Modification ◽  
Thin Layer ◽  
Oxygen Permeability ◽  
Coating Layer ◽  
Oxygen Permeation

The oxygen permeation fluxes of Ba0.5Sr0.5Co0.8Fe0.2O5+(BSCF) membranes coated by RBaCo2O5+ (R= Pr, Nd, Sm, Gd) thin layer were investigated. The oxygen permeation fluxes of BSCF membranes with RBaCo2O5+ (R112)R112 coating layer can be enhanced remarkably. And it is found that the reaction of R112 with BSCF also have effect on the oxygen permeation fluxes. Impurity formed by the reaction of Pr112 with BSCF block oxygen permeation. While NdBaCo2O5+ and SmBaCo2O5+, especially GdBaCo2O5+ have no serious reaction with BSCF, they are desirable materials for coating layer of oxygen permeation membranes.

Oxygen permeation performance of Ba0.5Sr0.5Co0.8Fe0.2O3−δ membrane after surface modification

2011 ◽  
Vol 29 (2) ◽  
pp. 235-242 ◽  
Author(s):  
Jung Hoon Park ◽  
Edoardo Magnone ◽  
Jong Pyo Kim ◽  
Soo Hyun Choi
Keyword(s):  
Surface Modification ◽  
Oxygen Permeation

High Oxygen Permeation in Ba0.95La0.05FeO3-δ Membranes with Surface Modification

2010 ◽  
Vol 2 (10) ◽  
pp. 2849-2853 ◽  
Author(s):  
Tetsuya Kida ◽  
Subaru Ninomiya ◽  
Ken Watanabe ◽  
Noboru Yamazoe ◽  
Kengo Shimanoe
Keyword(s):  
Surface Modification ◽  
Oxygen Permeation ◽  
High Oxygen

Surface modification of La0.8Sr0.2CrO3−δ–YSZ dual-phase membranes for syngas production

2015 ◽  
Vol 182 ◽  
pp. 213-225 ◽  
Author(s):  
Anthony S. Yu ◽  
Tae-Sik Oh ◽  
Ran Zhu ◽  
Alexa Gallegos ◽  
Raymond J. Gorte ◽  
...  
Keyword(s):  
Surface Modification ◽  
Ambient Air ◽  
Oxygen Permeation ◽  
Yttria Stabilized Zirconia ◽  
Base Case ◽  
Dual Phase ◽  
Stabilized Zirconia ◽  
Porous Composite ◽  
Additional Increase ◽  
Syngas Production

Oxygen permeation fluxes were studied in Mixed Ionic and Electronic Conducting (MIEC) membranes based on composites of 40 vol% La0.8Sr0.2CrO3 (LSCr) and 60 vol% yttria-stabilized zirconia (YSZ), using ambient air and flowing CO to establish a P(O2) gradient. The ambipolar conductivity of the dense LSCr–YSZ composite was determined for membranes with dense layers that were 115 μm and 650 μm thick. Other parts of the investigation focused on how modifications to the surface on the CO side affected the fluxes. Using a porous LSCr–YSZ composite on the surface as the base case, oxygen fluxes were shown to increase dramatically upon addition of 5 wt% CeO2 as a catalyst and an additional increase was observed with 1 wt% Pt. Changes in the structure of the porous composite LSCr–YSZ surface to improve connectivity of the YSZ phase also led to large increases in the oxygen fluxes.

Oxygen permeation properties and surface modification of acceptor-doped CeO2/MnFe2O4 composites

2006 ◽  
Vol 17 (2-4) ◽  
pp. 741-748 ◽  
Author(s):  
Hitoshi Takamura ◽  
Hiroshi Sugai ◽  
Masato Watanabe ◽  
Takehiro Kasahara ◽  
Atsunori Kamegawa ◽  
...  
Keyword(s):  
Surface Modification ◽  
Oxygen Permeation ◽  
Doped Ceo2 ◽  
Permeation Properties
Sign in / Sign up

Export Citation Format

Share Document