Paper Title:
Study on the Electrolyte Material BaCe1-xYxO3-δ’s Raman Spectra and Electrical Properties for Intermediate-Temperature Solid Oxide Fuel Cells
  Abstract

In this paper we used sol-gel method for synthesizing Y3+-doped BaCeO3 solid electrolyte BaCe1-xYxO3-δ(x=0.10, 0.15, 0.20, 0.25, 0.30). The samples crystallized in a single perovskite phase by X-ray diffraction analysis after sintering at 1450°C in air for 10h; Raman spectrum measurements indicated that the increasing of Y3+ doped content increased the crystal symmetry and increased the oxygen vacancy content for the samples, all Y3+ ions were doped into the Ce-sites; The electric conductivities of the samples increased with Y content and reach a maximum at x=0.25, then decreased. The relationship between proton conductivity and Y dopant was closely related with oxygen vacancy content, crystal symmetry and the forming of defect association.

  Info
Periodical
Advanced Materials Research (Volumes 233-235)
Edited by
Zhong Cao, Lixian Sun, Xueqiang Cao, Yinghe He
Pages
2419-2423
DOI
10.4028/www.scientific.net/AMR.233-235.2419
Citation
J. X. Wang, J. W. Jian, Y. Y. Gu, "Study on the Electrolyte Material BaCe1-xYxO3-δ’s Raman Spectra and Electrical Properties for Intermediate-Temperature Solid Oxide Fuel Cells", Advanced Materials Research, Vols. 233-235, pp. 2419-2423, 2011
Online since
May 2011
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