Oxygen permeation modeling for Zr0.84Y0.16O1.92–La0.8Sr0.2Cr0.5Fe0.5O3− asymmetric membrane made by phase-inversion

He, Wei; Liu, Jian jun; Chen, Chu Sheng; Ni, Meng

doi:10.1016/j.memsci.2015.05.026

Cited by 17 publications

(15 citation statements)

References 43 publications

(48 reference statements)

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“…Nevertheless, its oxygen flux is still low [13,14]. Ni catalyst without supporting material easily triggers local oxidation reactions and is easily deactivated by coking, thus the combination with perovskite is one of the solutions [17,18,20,26,27]. The problem comes from significantly different thermal expansion coefficient (TEC) between NiO and LSCF at 800-1000 °C of 14.1x10 -6 °C-1 for NiO while LSCF is 20.2x10 -6 °C-1 [28].…”

Section: Materials Selection For Dual-layer Hollof Fibre Membranementioning

confidence: 99%

“…A second way of optimizing the dual-layer membrane is by adding 8% ml yttria-stabilized Zirconia (YSZ) in each layer. YSZ provides good chemical compatibility (stable up to 200 h at 1200 °C and 24 hours at 1400 °C) and thermal expansion coefficient (TEC) of 3.85 x 10 -8 °C-1 [17,18,20,26,27]. It automatically prevents the local spot reaction between layer and membrane delamination by modified the TEC value of each layer.…”

Section: Materials Selection For Dual-layer Hollof Fibre Membranementioning

confidence: 99%

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Grand Challenges of Perovskite and Metal Oxide-based Membrane: A Form of Dual-layer Hollow Fibre

Nurherdiana

Gunawan

Widiastuti

et al. 2021

AMST

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Perovskite and metal oxides-based dual-layer hollow fibre membrane (DHF) has a high appeal as separator and catalyst for methane conversion application which operated at intermediate and high temperature. The membrane mostly fabricated via the co-extrusion followed by co-sintering method, which is quite challenging, due to the complexity to handle the barrier between layers from delamination, membrane cracking and crystal structure distortion which affects the material performance in a DHF form. This recent review clarifies the challenges in the DHF fabrication process to regulate physical and chemical properties in terms of mechanical strength, tightness, elemental distribution, and crystal structure stability. The based material of the membrane focuses on NiO-YSZ in the inner layer directly interconnected with LSCF-YSZ in the outer layer. The understanding of the challenges in DHF fabrication, will further reduce crucial errors in the fabrication process and accelerate performance improvement for application such as syngas, methanol and long-chain hydrocarbons production, and solid oxide fuel cell.

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Section: Materials Selection For Dual-layer Hollof Fibre Membranementioning

confidence: 99%

Section: Materials Selection For Dual-layer Hollof Fibre Membranementioning

confidence: 99%

Grand Challenges of Perovskite and Metal Oxide-based Membrane: A Form of Dual-layer Hollow Fibre

Nurherdiana

Gunawan

Widiastuti

et al. 2021

AMST

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show abstract

“…Oxygen semipermeation flux of 1.54 ml.cm -2 .min -1 (1.13 10 -2 mol.m -2 .s -1 ) has been obtained through a 60SDC-40SCN (60wt% Ce 0.8 Sm 0.2 O 2−δ -40wt% SrCo 0.9 Nb 0.1 O 3−δ ) dual-phase membrane at 950°C under an air/He gradient (feed flow rate 120 ml/min, sweep flow rate 60 ml/min) [20]. Some authors [24] [25] [26] [19] combine two types of membrane architectures to get higher oxygen semipermeation fluxes. Zhang et al [25] investigated a 25µm-thick dense YSZ-LSCrF (Zr 0.84 Y 0.16 O 1.92 -La 0.8 Sr 0.2 Cr 0.5 Fe 0.5 O 3-δ ) dual-phase membrane supported by a porous support and reported a high flux of 1.58 ml.cm -2 .min -1 (1.2 10 -2 mol.m -2 .s -1 ) at 900°C under an air/CO gradient (feed flow rate 100 ml/min, sweep flow rate 35 ml/min).…”

Section: Introductionmentioning

confidence: 99%

Symmetric and asymmetric membranes based on La0.5Sr0.5Fe0.7Ga0.3O3-δ perovskite with high oxygen semipermeation flux performances and identification of the rate-determining step of oxygen transport

Deronzier

Chartier

Geffroy

2021

Journal of the European Ceramic Society

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This work focuses on identifying the rate-determining step of oxygen transport through La 0.5 Sr 0.5 Fe 0.7 Ga 0.3 O 3-δ membranes with symmetric and asymmetric architectures. The best oxygen semipermeation fluxes are 3.4 10 -3 mol.m -2 .s -1 and 6.3 10 -3 mol.m -2 .s -1 at 900°C for the symmetric membrane and asymmetric membrane with the modified surface. The asymmetric membrane with a modified surface leads to an increase of approximately 7 times the oxygen flux compared to that obtained with the La 0.5 Sr 0.5 Fe 0.7 Ga 0.3 O 3-δ dense membrane without surface modification. This work also shows that the oxygen flux is mainly governed by gaseous oxygen diffusion through the porous support of asymmetric La 0.5 Sr 0.5 Fe 0.7 Ga 0.3 O 3-δ membranes.

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“…An inorganic membrane of La0.6Sr0.4Co0.2Fe0.8O3-δ is widely promoted as an oxygen separator and catalyst simultaneously applied at low and intermediate such as solid oxide fuel cell (SOFC) and high temperatures such as partial oxidation and oxidative coupling of methane (Teraoka et al, 1988). It is also well known that the LSCF membrane with the asymmetric configuration of a finger-like and sponge-like combination offers good mechanical strength and oxygen separator which fabricated using the phase inversion method (He et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Effect of Dope Composition and Additive Agent on the Properties of La0.6Sr04Co0.2Fe0.8O3-? Asymmetric Flat Membranes

Nurherdiana¹,

Habib

Utomo

et al. 2020

Nusantara Science and Technology Proceedings

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In this study, the La0.6Sr0.4Co0.2Fe0.8O3-δ (LSCF 6428) asymmetric flat membrane was successfully fabricated using a based-phase inversion technique. The effect of different dope composition and molecular weight of polyethylene glycol (PEG) as a pore-forming agent were investigated to identify the membrane properties in term of uniformly pore configuration and the mechanical strength. The result showed that the addition of dimethyl sulfoxide (DMSO) as the solvent in varied compositions exhibits different morphology and the most uniform finger-like pores with a diameter of 22 μm were formed using 5.0 ml DMSO. Based on the uniformity of the pores, 5.0 ml DMSO was further used to study the effect of PEG addition. A highly uniform porous configuration with a pore diameter of 17 μm, less dense layer thickness, the high mechanical strength of 507.2 Hv, and good thermal expansion behavior was achieved when 0.39% PEG 8000 was added. Such PEG 8000 is promoted additive to adjust the LSCF membrane porous configuration parameter to improve oxygen permeation and catalytic performance on partial oxidation of methane.

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Oxygen permeation modeling for Zr0.84Y0.16O1.92–La0.8Sr0.2Cr0.5Fe0.5O3− asymmetric membrane made by phase-inversion

Cited by 17 publications

References 43 publications

Grand Challenges of Perovskite and Metal Oxide-based Membrane: A Form of Dual-layer Hollow Fibre

Grand Challenges of Perovskite and Metal Oxide-based Membrane: A Form of Dual-layer Hollow Fibre

Symmetric and asymmetric membranes based on La0.5Sr0.5Fe0.7Ga0.3O3-δ perovskite with high oxygen semipermeation flux performances and identification of the rate-determining step of oxygen transport

Effect of Dope Composition and Additive Agent on the Properties of La0.6Sr04Co0.2Fe0.8O3-? Asymmetric Flat Membranes

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