High oxygen permeation in Ba0.95La0.05FeO 3-δ membranes with surface modification

Tetsuya Kida, Subaru Ninomiya, Ken Watanabe, Noboru Yamazoe, Kengo Shimanoe

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

Selective oxygen separation from air was carried out using ceramic membranes composed of Ba0.95La0.05FeO3-δ. We demonstrated that surface abrasion of Ba0.95La 0.05FeO3-δ membranes led to a significant increase in oxygen permeation fluxes at 700-930 °C because of an increase in surface reaction sites. Abrasion of the oxygen desorption side of the membrane resulted in a higher oxygen permeability than with abrasion on the oxygen sorption side. Moreover, an increase in the area of the oxygen desorption side also increased the oxygen permeability. The results suggest that oxygen permeation through Ba0.95La0.05FeO3-δ membranes is limited by the desorption of oxygen (surface reaction) and bulk diffusion. Attachment of a porous layer made of Ba0.95La0.05FeO 3-δ to the membrane surface was also effective in increasing oxygen permeability. For example, a high permeation flux of 3.2 cm3 min-1 cm-2 was achieved at 930 °C under a He/air gradient for a membrane (0.5 mm thickness) coated with a porous layer (14.4 μm).

Original languageEnglish
Pages (from-to)2849-2853
Number of pages5
JournalACS Applied Materials and Interfaces
Volume2
Issue number10
DOIs
Publication statusPublished - Oct 27 2010

Fingerprint

Permeation
Surface treatment
Oxygen
Membranes
Abrasion
Desorption
Surface reactions
Fluxes
Ceramic membranes
Air
Sorption

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

Cite this

High oxygen permeation in Ba0.95La0.05FeO 3-δ membranes with surface modification. / Kida, Tetsuya; Ninomiya, Subaru; Watanabe, Ken; Yamazoe, Noboru; Shimanoe, Kengo.

In: ACS Applied Materials and Interfaces, Vol. 2, No. 10, 27.10.2010, p. 2849-2853.

Research output: Contribution to journalArticle

@article{38459fa68ba54b5aaa1fe395a2ec8108,
title = "High oxygen permeation in Ba0.95La0.05FeO 3-δ membranes with surface modification",
abstract = "Selective oxygen separation from air was carried out using ceramic membranes composed of Ba0.95La0.05FeO3-δ. We demonstrated that surface abrasion of Ba0.95La 0.05FeO3-δ membranes led to a significant increase in oxygen permeation fluxes at 700-930 °C because of an increase in surface reaction sites. Abrasion of the oxygen desorption side of the membrane resulted in a higher oxygen permeability than with abrasion on the oxygen sorption side. Moreover, an increase in the area of the oxygen desorption side also increased the oxygen permeability. The results suggest that oxygen permeation through Ba0.95La0.05FeO3-δ membranes is limited by the desorption of oxygen (surface reaction) and bulk diffusion. Attachment of a porous layer made of Ba0.95La0.05FeO 3-δ to the membrane surface was also effective in increasing oxygen permeability. For example, a high permeation flux of 3.2 cm3 min-1 cm-2 was achieved at 930 °C under a He/air gradient for a membrane (0.5 mm thickness) coated with a porous layer (14.4 μm).",
author = "Tetsuya Kida and Subaru Ninomiya and Ken Watanabe and Noboru Yamazoe and Kengo Shimanoe",
year = "2010",
month = "10",
day = "27",
doi = "10.1021/am100524k",
language = "English",
volume = "2",
pages = "2849--2853",
journal = "ACS applied materials & interfaces",
issn = "1944-8244",
publisher = "American Chemical Society",
number = "10",

}

TY - JOUR

T1 - High oxygen permeation in Ba0.95La0.05FeO 3-δ membranes with surface modification

AU - Kida, Tetsuya

AU - Ninomiya, Subaru

AU - Watanabe, Ken

AU - Yamazoe, Noboru

AU - Shimanoe, Kengo

PY - 2010/10/27

Y1 - 2010/10/27

N2 - Selective oxygen separation from air was carried out using ceramic membranes composed of Ba0.95La0.05FeO3-δ. We demonstrated that surface abrasion of Ba0.95La 0.05FeO3-δ membranes led to a significant increase in oxygen permeation fluxes at 700-930 °C because of an increase in surface reaction sites. Abrasion of the oxygen desorption side of the membrane resulted in a higher oxygen permeability than with abrasion on the oxygen sorption side. Moreover, an increase in the area of the oxygen desorption side also increased the oxygen permeability. The results suggest that oxygen permeation through Ba0.95La0.05FeO3-δ membranes is limited by the desorption of oxygen (surface reaction) and bulk diffusion. Attachment of a porous layer made of Ba0.95La0.05FeO 3-δ to the membrane surface was also effective in increasing oxygen permeability. For example, a high permeation flux of 3.2 cm3 min-1 cm-2 was achieved at 930 °C under a He/air gradient for a membrane (0.5 mm thickness) coated with a porous layer (14.4 μm).

AB - Selective oxygen separation from air was carried out using ceramic membranes composed of Ba0.95La0.05FeO3-δ. We demonstrated that surface abrasion of Ba0.95La 0.05FeO3-δ membranes led to a significant increase in oxygen permeation fluxes at 700-930 °C because of an increase in surface reaction sites. Abrasion of the oxygen desorption side of the membrane resulted in a higher oxygen permeability than with abrasion on the oxygen sorption side. Moreover, an increase in the area of the oxygen desorption side also increased the oxygen permeability. The results suggest that oxygen permeation through Ba0.95La0.05FeO3-δ membranes is limited by the desorption of oxygen (surface reaction) and bulk diffusion. Attachment of a porous layer made of Ba0.95La0.05FeO 3-δ to the membrane surface was also effective in increasing oxygen permeability. For example, a high permeation flux of 3.2 cm3 min-1 cm-2 was achieved at 930 °C under a He/air gradient for a membrane (0.5 mm thickness) coated with a porous layer (14.4 μm).

UR - http://www.scopus.com/inward/record.url?scp=79151479995&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=79151479995&partnerID=8YFLogxK

U2 - 10.1021/am100524k

DO - 10.1021/am100524k

M3 - Article

AN - SCOPUS:79151479995

VL - 2

SP - 2849

EP - 2853

JO - ACS applied materials & interfaces

JF - ACS applied materials & interfaces

SN - 1944-8244

IS - 10

ER -