Mixed ion and electron conductive composites for single component fuel cells: I. Effects of composition and pellet thickness
2012 (English)In: Journal of Power Sources, ISSN 0378-7753, Vol. 217, 164-169 p.Article in journal (Refereed) Published
Electrochemical performances of single component fuel cells (SCFCs) based on mixed ion and electron conductors have been studied as a function of composition and pellet thickness by polarization curves and electrochemical impedance spectroscopy. The electronic conductor of LNCZO shows conductivities of 21.7 and 5.3 S cm(-1) in H-2 and in air, respectively. SCFC using 40 wt. % of LNCZO and 60 wt. % of ion conductive SDC-Na2CO3 with a thickness of 1.10 mm shows the highest power density of 0.35 W cm(-2) at 550 degrees C. The performance is correlated to the mixed conduction properties (ionic and electronic, p and n-type) and the microstructure of the functional SCFC layer.
Place, publisher, year, edition, pages
2012. Vol. 217, 164-169 p.
Single component fuel cells, Composite electrolyte, p and n-type semiconductors, Composition, Thickness, Electrolyte free
IdentifiersURN: urn:nbn:se:kth:diva-106123DOI: 10.1016/j.jpowsour.2012.05.045ISI: 000308782200026ScopusID: 2-s2.0-84862744309OAI: oai:DiVA.org:kth-106123DiVA: diva2:573624
FunderSwedish Research Council, 621-2011-4983Vinnova
QC 201212032012-12-032012-11-292013-11-22Bibliographically approved