Effects of composition on the electrochemical property and cell performance of single layer fuel cell
2015 (English)In: Journal of Power Sources, ISSN 0378-7753, Vol. 275, 476-482 p.Article in journal (Refereed) Published
In this study, the enhanced electrochemical performance of single layer fuel cells (SLFCs) based upon mixed ion and electron conductors is analyzed as a function of composition. We synthesize a series of Ce0.8Sm0.2O2-delta-Li0.3Ni0.6Cu0.07Sr0.03O2-delta (SDC-LNCS) with different weight ratios. The microstructure and morphology of the composite materials are characterized through X-ray diffraction (XRD), transmission electron microscope (TEM), and energy-dispersive X-ray spectrometer (EDS). Stability of the synthesized samples is evaluated by thermal gravity analysis (TGA). The SLFC with 6SDC-4LNCS exhibits a uniform distribution of the two compositions as well as demonstrates the highest power density of 312 mW cm-2 at 550 mu C. The performance is correlated to the balance of the conduction properties (ionic and electronic) of the functional SLFC layer. The results are a critical contribution to further development of this new energy transfer device.
Place, publisher, year, edition, pages
2015. Vol. 275, 476-482 p.
Single layer fuel cell, Samarium doped ceria, Composition, Power density, p and n-type semiconductors
Energy Engineering Other Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:kth:diva-160377DOI: 10.1016/j.jpowsour.2014.11.041ISI: 000348088400059ScopusID: 2-s2.0-84911896170OAI: oai:DiVA.org:kth-160377DiVA: diva2:791031
QC 201502262015-02-262015-02-192015-02-26Bibliographically approved