Mixed ionic-electronic conducting (MIEC) ceramic-based membranes for oxygen separation

Sunarso, J., Baumann, S., Serra, J. M., Meulenberg, W. A., Liu, S. and Diniz Da Costa, J. C. (2008) Mixed ionic-electronic conducting (MIEC) ceramic-based membranes for oxygen separation. Journal of Membrane Science, 320 1-2: 13-41. doi:10.1016/j.memsci.2008.03.074

Author Sunarso, J.
Baumann, S.
Serra, J. M.
Meulenberg, W. A.
Liu, S.
Diniz Da Costa, J. C.
Title Mixed ionic-electronic conducting (MIEC) ceramic-based membranes for oxygen separation
Journal name Journal of Membrane Science   Check publisher's open access policy
ISSN 0376-7388
Publication date 2008
Year available 2008
Sub-type Article (original research)
DOI 10.1016/j.memsci.2008.03.074
Volume 320
Issue 1-2
Start page 13
End page 41
Total pages 29
Editor A. L. Zydney
Place of publication Amsterdam, The Netherlands
Publisher Elsevier BV
Collection year 2009
Language eng
Subject C1
850405 Transformation of Black Coal into Electricity
960302 Climate Change Mitigation Strategies
090404 Membrane and Separation Technologies
Abstract Although Nernst observed ionic conduction of zirconia-yttria solutions in 1899, the field of oxygen separation research remained dormant. In the last 30 years, research efforts by the scientific community intensified significantly, stemming from the pioneering work of Takahashi and co-workers, with the initial development of mixed ionic-electronic conducting (MIEC) oxides. A large number of MIEC compounds have been synthesized and characterized since then, mainly based on perovskites (ABO(3-delta) and A(2)BO(4 +/-delta)) and fluorites (A(delta)B(1-delta)O(2-delta) and A(2 delta)B(2-2 delta)O(3)), or dual-phases by the introduction of metal or ceramic elements. These compounds form dense ceramic membranes, which exhibit significant oxygen ionic and electronic conductivity at elevated temperatures. in turn, this process allows for the ionic transport of oxygen from air due to the differential partial pressure of oxygen across the membrane, providing the driving force for oxygen ion transport. As a result, defect-free synthesized membranes deliver 100% pure oxygen. Electrons involved in the electrochemical oxidation and reduction of oxygen ions and oxygen molecules respectively are transported in the opposite direction, thus ensuring overall electrical neutrality. Notably, the fundamental application of the defect theory was deduced to a plethora of MIEC materials over the last 30 years, providing the understanding of electronic and ionic transport, in particular when dopants are introduced to the compound of interest. As a consequence, there are many special cases of ionic oxygen transport limitation accompanied by phase changes, depending upon the temperature and oxygen partial pressure operating conditions. This paper aims at reviewing all the significant and relevant contribution of the research community in this area in the last three decades in conjunction with theoretical principles.
Keyword Dense ceramic membrane
Mixed ionic-electronic conduction
Transport mechanisms
Synthesis methods
Q-Index Code C1
Q-Index Status Confirmed Code

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2009 Higher Education Research Data Collection
Excellence in Research Australia (ERA) - Collection
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Created: Thu, 26 Mar 2009, 13:29:48 EST by Amanda Lee on behalf of School of Chemical Engineering