Synthesize and characterization of nanocomposite anodes for low temperature solid oxide fuel cell
2015 (English)In: International journal of hydrogen energy, ISSN 0360-3199, Vol. 40, no 1, 891-897 p.Article in journal (Refereed) Published
Solid oxide fuel cells have much capability to become an economical alternative energy conversion technology having appropriate materials that can be operated at comparatively low temperature in the range of 400-600 degrees C. The nano-scale engineering has been incorporated to improve the catalytic activity of anode materials for solid oxide fuel cells. Nanostructured Al0.10NixZn0.90-xO oxides were prepared by solid state reaction, which were then mixed with the prepared Gadolinium doped Ceria GDC electrolyte. The crystal structure and surface morphology were characterized by XRD and SEM. The particle size was evaluated by XRD data and found in the range of 20-50 nm, which was then ensured by SEM pictures. The pellets of 13 mm diameter were pressed by dry press technique and electrical conductivities (DC and AC) were determined by four probe techniques and the values have been found to be 10.84 and 4.88 S/cm, respectively at hydrogen atmosphere in the temperature range of 300-600 degrees C. The Electrochemical Impedance Spectroscopy (EIS) analysis exhibits the pure electronic behavior at hydrogen atmosphere. The maximum power density of ANZ-GDC composite anode based solid oxide fuel cell has been achieved 705 mW/cm(2) at 550 degrees C.
Place, publisher, year, edition, pages
2015. Vol. 40, no 1, 891-897 p.
Nanocomposite, Energy conversion technology, Nanostructure anode, LTSOFC
IdentifiersURN: urn:nbn:se:kth:diva-161142DOI: 10.1016/j.ijhydene.2014.10.119ISI: 000348687300092ScopusID: 2-s2.0-84916224475OAI: oai:DiVA.org:kth-161142DiVA: diva2:796159
1st International Conference on Nanotechnology, Nanomaterials and Thin Films for Energy Applications (Nano Energy), FEB 19-21, 2014, London, ENGLAND
QC 201503182015-03-182015-03-092015-03-18Bibliographically approved