Designing CO<inf>2</inf>-resistant oxygen-selective mixed ionic-electronic conducting membranes: Guidelines, recent advances, and forward directions
MetadataShow full item record
© 2017 The Royal Society of Chemistry. CO 2 resistance is an enabling property for the wide-scale implementation of oxygen-selective mixed ionic-electronic conducting (MIEC) membranes in clean energy technologies, i.e., oxyfuel combustion, clean coal energy delivery, and catalytic membrane reactors for greener chemical synthesis. The significant rise in the number of studies over the past decade and the major progress in CO 2 -resistant MIEC materials warrant systematic guidelines on this topic. To this end, this review features the pertaining aspects in addition to the recent status and advances of the two most promising membrane materials, perovskite and fluorite-based dual-phase materials. We explain how to quantify and design CO 2 resistant membranes using the Lewis acid-base reaction concept and thermodynamics perspective and highlight the relevant characterization techniques. For perovskite materials, a trade-off generally exists between CO 2 resistance and O 2 permeability. Fluorite materials, despite their inherent CO 2 resistance, typically have low O 2 permeability but this can be improved via different approaches including thin film technology and the recently developed minimum internal electronic short-circuit second phase and external electronic short-circuit decoration. We then elaborate the two main future directions that are centralized around the development of new oxide compositions capable of featuring simultaneously high CO 2 resistance and O 2 permeability and the exploitation of phase reactions to create a new conductive phase along the grain boundaries of dual-phase materials. The final part of the review discusses various complimentary characterization techniques and the relevant studies that can provide insights into the degradation mechanism of oxide-based materials upon exposure to CO 2 .
Showing items related by title, author, creator and subject.
Veder, Jean-Pierre M. (2010)This thesis reports on a methodology for the nanocharacterization of complex electrochemical systems. A series of powerful techniques have been adapted and applied to studies of two scientifically important electrochemical ...
A novel CO<inf>2</inf>-resistant ceramic dual-phase hollow fiber membrane for oxygen separationBi, X.; Meng, X.; Liu, P.; Yang, N.; Zhu, Z.; Ran, R.; Liu, Shaomin (2017)© 2016 Elsevier B.V.Robust oxygen permeable ceramic membranes have potential applications in clean energy industries like oxyfuel power plants and green chemical synthesis like syngas production combining the separation ...
Zhang, C.; Ran, Ran; Pham, Gia; Zhang, Kun; Liu, J.; Liu, Shaomin (2015)Robust oxygen ion conducting membranes based on doped ceria oxides can be used as oxygen permeation membranes with a short circuit to provide the required electronic conduction. Previous methods have coated both surfaces ...