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GDC-Y2O3 Oxide Based Two Phase Nanocomposite Electrolyte
KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Heat and Power Technology.
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2011 (English)In: JOURNAL OF FUEL CELL SCIENCE AND TECHNOLOGY, ISSN 1550-624X, Vol. 8, no 4, 041012- p.Article in journal (Refereed) Published
Abstract [en]

Oxide based two phase composite electrolyte (Ce0.9Gd0.1O2-Y2O3) was synthesized by coprecipitation method. The nanocomposite electrolyte showed the significant performance of power density 785 mW cm(-2) and higher conductivities at relatively low temperature 550 degrees C. Ionic conductivities were measured with ac impedance spectroscopy and four-probe dc method. The structural and morphological properties of the prepared electrolyte were investigated by scanning electron microscope (SEM). The thermal stability was determined with differential scanning calorimetry. The particle size that was calculated with Scherrer formula, 15-20 nm, is in a good agreement with the SEM and X-ray diffraction results. The purpose of this study is to introduce the functional nanocomposite materials for advanced fuel cell technology to meet the challenges of solid oxide fuel cell.

Place, publisher, year, edition, pages
2011. Vol. 8, no 4, 041012- p.
Keyword [en]
two phase, oxides, carbonates, nanocomposite, electrical conductivity
National Category
Engineering and Technology
URN: urn:nbn:se:kth:diva-32623DOI: 10.1115/1.4003634ISI: 000289118000012ScopusID: 2-s2.0-79953715686OAI: diva2:411687
QC 20110419Available from: 2011-04-19 Created: 2011-04-18 Last updated: 2011-04-19Bibliographically approved

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Raza, RizwanImran, Syed KhalidZhu, Bin
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