Synthesis and oxygen permeation study of novel perovskite-type BaBi(x)Co0.2Fe(0.8-x)O(3-δ) ceramic membranes

Zongping Shao; Guoxing Xiong; You Cong; Weishen Yang

doi:10.1016/S0376-7388(99)00211-2

Synthesis and oxygen permeation study of novel perovskite-type BaBi(x)Co_0.2Fe(0.8-x)O(3-δ) ceramic membranes

Zongping Shao, Guoxing Xiong, You Cong, Weishen Yang

CAS - Dalian Institute of Chemical Physics

Research output: Contribution to journal › Article › peer-review

105 Scopus citations

Abstract

Novel perovskite-type B-site Bi-doped BaBi(x)Co_0.2Fe(0.8-x)O(3-δ) (0.1≤x≤0.5) oxide membranes were exploited and synthesized. Oxygen permeation through these membranes was studied by the GC method using a high-temperature permeation cell. High permeation fluxes were observed. The permeation flux of BaBi_0.2Co_0.2Fe_0.6O(3-δ) membrane reached about 1mlmin^-1cm^-2 under air/He gradients at 950°C. The dependence of the permeation flux on thickness for BaBi_0.3Co_0.2Fe_0.5O(3-δ) membrane was investigated in a wide temperature range from 600°C to 950°C. The permeation rate was controlled by surface exchange kinetics at lower temperatures. Bulk diffusion became partially rate-determining with rise in temperature. Oxygen temperature-programmed desorption (O₂-TPD) results showed very good oxygen adsorption and desorption reversibility of the materials. Copyright (C) 2000 Elsevier Science B.V.

Original language	English
Pages (from-to)	167-176
Number of pages	10
Journal	Journal of Membrane Science
Volume	164
Issue number	1-2
DOIs	https://doi.org/10.1016/S0376-7388(99)00211-2
State	Published - 4 Jan 2000
Externally published	Yes

Keywords

Bismuth
Inorganic membrane
Mixed conducting
Oxygen and nitrogen separation
Perovskite

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10.1016/S0376-7388(99)00211-2

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title = "Synthesis and oxygen permeation study of novel perovskite-type BaBi(x)Co0.2Fe(0.8-x)O(3-δ) ceramic membranes",

abstract = "Novel perovskite-type B-site Bi-doped BaBi(x)Co0.2Fe(0.8-x)O(3-δ) (0.1≤x≤0.5) oxide membranes were exploited and synthesized. Oxygen permeation through these membranes was studied by the GC method using a high-temperature permeation cell. High permeation fluxes were observed. The permeation flux of BaBi0.2Co0.2Fe0.6O(3-δ) membrane reached about 1mlmin-1cm-2 under air/He gradients at 950°C. The dependence of the permeation flux on thickness for BaBi0.3Co0.2Fe0.5O(3-δ) membrane was investigated in a wide temperature range from 600°C to 950°C. The permeation rate was controlled by surface exchange kinetics at lower temperatures. Bulk diffusion became partially rate-determining with rise in temperature. Oxygen temperature-programmed desorption (O2-TPD) results showed very good oxygen adsorption and desorption reversibility of the materials. Copyright (C) 2000 Elsevier Science B.V.",

keywords = "Bismuth, Inorganic membrane, Mixed conducting, Oxygen and nitrogen separation, Perovskite",

author = "Zongping Shao and Guoxing Xiong and You Cong and Weishen Yang",

year = "2000",

month = jan,

day = "4",

doi = "10.1016/S0376-7388(99)00211-2",

language = "英语",

volume = "164",

pages = "167--176",

journal = "Journal of Membrane Science",

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TY - JOUR

T1 - Synthesis and oxygen permeation study of novel perovskite-type BaBi(x)Co0.2Fe(0.8-x)O(3-δ) ceramic membranes

AU - Shao, Zongping

AU - Xiong, Guoxing

AU - Cong, You

AU - Yang, Weishen

PY - 2000/1/4

Y1 - 2000/1/4

N2 - Novel perovskite-type B-site Bi-doped BaBi(x)Co0.2Fe(0.8-x)O(3-δ) (0.1≤x≤0.5) oxide membranes were exploited and synthesized. Oxygen permeation through these membranes was studied by the GC method using a high-temperature permeation cell. High permeation fluxes were observed. The permeation flux of BaBi0.2Co0.2Fe0.6O(3-δ) membrane reached about 1mlmin-1cm-2 under air/He gradients at 950°C. The dependence of the permeation flux on thickness for BaBi0.3Co0.2Fe0.5O(3-δ) membrane was investigated in a wide temperature range from 600°C to 950°C. The permeation rate was controlled by surface exchange kinetics at lower temperatures. Bulk diffusion became partially rate-determining with rise in temperature. Oxygen temperature-programmed desorption (O2-TPD) results showed very good oxygen adsorption and desorption reversibility of the materials. Copyright (C) 2000 Elsevier Science B.V.

AB - Novel perovskite-type B-site Bi-doped BaBi(x)Co0.2Fe(0.8-x)O(3-δ) (0.1≤x≤0.5) oxide membranes were exploited and synthesized. Oxygen permeation through these membranes was studied by the GC method using a high-temperature permeation cell. High permeation fluxes were observed. The permeation flux of BaBi0.2Co0.2Fe0.6O(3-δ) membrane reached about 1mlmin-1cm-2 under air/He gradients at 950°C. The dependence of the permeation flux on thickness for BaBi0.3Co0.2Fe0.5O(3-δ) membrane was investigated in a wide temperature range from 600°C to 950°C. The permeation rate was controlled by surface exchange kinetics at lower temperatures. Bulk diffusion became partially rate-determining with rise in temperature. Oxygen temperature-programmed desorption (O2-TPD) results showed very good oxygen adsorption and desorption reversibility of the materials. Copyright (C) 2000 Elsevier Science B.V.

KW - Bismuth

KW - Inorganic membrane

KW - Mixed conducting

KW - Oxygen and nitrogen separation

KW - Perovskite

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U2 - 10.1016/S0376-7388(99)00211-2

DO - 10.1016/S0376-7388(99)00211-2

M3 - 文章

AN - SCOPUS:0033992121

SN - 0376-7388

VL - 164

SP - 167

EP - 176

JO - Journal of Membrane Science

JF - Journal of Membrane Science

IS - 1-2

ER -

Synthesis and oxygen permeation study of novel perovskite-type BaBi(x)Co_0.2Fe(0.8-x)O(3-δ) ceramic membranes

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