A study on the degradation and recovery mechanisms of perovskite Ba1.0Co0.7Fe0.2Nb0.1O3-delta membrane under Co2-containing atmosphere

Jianfang Zhou; Xia Tang; Chengzhang Wu; He Wang; Yuwen Zhang; Weizhong Ding; Yonggang Jin; Chenghua Sun

doi:10.1021/acs.jpcc.5b05920

A study on the degradation and recovery mechanisms of perovskite Ba1.0Co0.7Fe0.2Nb0.1O3-delta membrane under Co2-containing atmosphere

Jianfang Zhou, Xia Tang, Chengzhang Wu, He Wang, Yuwen Zhang, Weizhong Ding, Yonggang Jin, Chenghua Sun

School of Chemistry

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

6 Citations (Scopus)

Abstract

In this study, the degradation and recovery mechanisms of perovskite Ba1.0Co0.7Fe0.2Nb0.1O3−δ (BCFN) membrane under a CO2-containing atmosphere were investigated. The oxygen permeability of the BCFN membrane is degraded quickly with pure CO2 gas in the sweep side and then would be partially recovered if the sweep gas changes to 5% CO2. It is found that the existence of oxygen can stabilize the cubic perovskite structure of BCFN. Isotopic exchange test confirms the fast exchange of oxygen between the lattice oxygen of BCFN bulk and the oxygen in the formed carbonate. Pores or cracks are generated during the dynamical exchange of oxygen and serve as the permeable channels of oxygen, resulting in the partial recovery of oxygen permeability under 5% CO2 concentration.

Original language	English
Pages (from-to)	24229-24237
Number of pages	9
Journal	Journal of Physical Chemistry C
Volume	119
Issue number	43
DOIs	https://doi.org/10.1021/acs.jpcc.5b05920
Publication status	Published - 2015

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10.1021/acs.jpcc.5b05920

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title = "A study on the degradation and recovery mechanisms of perovskite Ba1.0Co0.7Fe0.2Nb0.1O3-delta membrane under Co2-containing atmosphere",

abstract = "In this study, the degradation and recovery mechanisms of perovskite Ba1.0Co0.7Fe0.2Nb0.1O3−δ (BCFN) membrane under a CO2-containing atmosphere were investigated. The oxygen permeability of the BCFN membrane is degraded quickly with pure CO2 gas in the sweep side and then would be partially recovered if the sweep gas changes to 5% CO2. It is found that the existence of oxygen can stabilize the cubic perovskite structure of BCFN. Isotopic exchange test confirms the fast exchange of oxygen between the lattice oxygen of BCFN bulk and the oxygen in the formed carbonate. Pores or cracks are generated during the dynamical exchange of oxygen and serve as the permeable channels of oxygen, resulting in the partial recovery of oxygen permeability under 5% CO2 concentration.",

author = "Jianfang Zhou and Xia Tang and Chengzhang Wu and He Wang and Yuwen Zhang and Weizhong Ding and Yonggang Jin and Chenghua Sun",

year = "2015",

doi = "10.1021/acs.jpcc.5b05920",

language = "English",

volume = "119",

pages = "24229--24237",

journal = "Journal of Physical Chemistry C",

issn = "1932-7447",

publisher = "American Chemical Society",

number = "43",

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TY - JOUR

T1 - A study on the degradation and recovery mechanisms of perovskite Ba1.0Co0.7Fe0.2Nb0.1O3-delta membrane under Co2-containing atmosphere

AU - Zhou, Jianfang

AU - Tang, Xia

AU - Wu, Chengzhang

AU - Wang, He

AU - Zhang, Yuwen

AU - Ding, Weizhong

AU - Jin, Yonggang

AU - Sun, Chenghua

PY - 2015

Y1 - 2015

N2 - In this study, the degradation and recovery mechanisms of perovskite Ba1.0Co0.7Fe0.2Nb0.1O3−δ (BCFN) membrane under a CO2-containing atmosphere were investigated. The oxygen permeability of the BCFN membrane is degraded quickly with pure CO2 gas in the sweep side and then would be partially recovered if the sweep gas changes to 5% CO2. It is found that the existence of oxygen can stabilize the cubic perovskite structure of BCFN. Isotopic exchange test confirms the fast exchange of oxygen between the lattice oxygen of BCFN bulk and the oxygen in the formed carbonate. Pores or cracks are generated during the dynamical exchange of oxygen and serve as the permeable channels of oxygen, resulting in the partial recovery of oxygen permeability under 5% CO2 concentration.

AB - In this study, the degradation and recovery mechanisms of perovskite Ba1.0Co0.7Fe0.2Nb0.1O3−δ (BCFN) membrane under a CO2-containing atmosphere were investigated. The oxygen permeability of the BCFN membrane is degraded quickly with pure CO2 gas in the sweep side and then would be partially recovered if the sweep gas changes to 5% CO2. It is found that the existence of oxygen can stabilize the cubic perovskite structure of BCFN. Isotopic exchange test confirms the fast exchange of oxygen between the lattice oxygen of BCFN bulk and the oxygen in the formed carbonate. Pores or cracks are generated during the dynamical exchange of oxygen and serve as the permeable channels of oxygen, resulting in the partial recovery of oxygen permeability under 5% CO2 concentration.

UR - http://pubs.acs.org.ezproxy.lib.monash.edu.au/doi/pdf/10.1021/acs.jpcc.5b05920

U2 - 10.1021/acs.jpcc.5b05920

DO - 10.1021/acs.jpcc.5b05920

M3 - Article

SN - 1932-7447

VL - 119

SP - 24229

EP - 24237

JO - Journal of Physical Chemistry C

JF - Journal of Physical Chemistry C

IS - 43

ER -

A study on the degradation and recovery mechanisms of perovskite Ba1.0Co0.7Fe0.2Nb0.1O3-delta membrane under Co2-containing atmosphere

Abstract

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Computer-Aided Design of High-Performance Photocatalysts for Solar Hydrogen Producion Based on Red Titanium Dioxide

To identify and understand highly reactive surfaces for solar hydrogen production

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A study on the degradation and recovery mechanisms of perovskite Ba1.0Co0.7Fe0.2Nb0.1O3-delta membrane under Co2-containing atmosphere

Abstract

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Computer-Aided Design of High-Performance Photocatalysts for Solar Hydrogen Producion Based on Red Titanium Dioxide

To identify and understand highly reactive surfaces for solar hydrogen production

Cite this