Effect of microstructure and thickness on oxygen permeation of La2NiO4+delta membranes

TitleEffect of microstructure and thickness on oxygen permeation of La2NiO4+delta membranes
Publication TypeJournal Article
Year of Publication2016
AuthorsMezghani, K, Hamza, A, Habib, MA, Lee, D, Shao-Horn, Y
JournalCeramics International
Volume42
Issue1
Pagination666 - 672
Date Published2016/01//
Abstract

Lanthanum nickelate, La2NiO4 (LNO) powders were synthesized by a sol gel method. These powders were compacted to obtain LNO membranes. The grain size effect on the permeation of LNO membranes was examined by variation of the sintering time of membranes from 5 to 48 h. The microstructure of membranes was analyzed using scanning electron microscopy (SEM) and the grain size was determined using a statistical approach. The grain size was observed to increase with the dwell time following a power law. The permeation of the membranes increased with increasing dwell time up to