Paper Title:
Preparation of Double-Perovskites Sr2Fe1-xScxMoO6-δ Powders for the Cathode of SOEC by Sol-Gel Citrate Method
  Abstract

Double-perovskite Sr2Fe1-xScxMoO6- (x = 0, 0.05, 0.1, 0.2, 0.3, 0.4) powders have been synthesized by sol-gel citrate method. Initial powders were calcined in different temperature and atmosphere (air, H2(4vol%)/Ar), then analyzed by using the methods of X-ray, scanning electron microscopy (SEM), as well as thermal analysis. It is found that the formation of perovskite structure is related to the content of Sc, pH value, calcination temperature and sintering atmosphere. Especially, a pure perovskite structure almost completely formed after three hours sintering in atmosphere of H2(4vol%)/Ar. Although the formation of perovskite structure also happened in the air atmosphere, at the same time the SrMoO4 structure formed undesirably as a result of oxidization of Mo.

  Info
Periodical
Advanced Materials Research (Volumes 105-106)
Edited by
Wei Pan and Jianghong Gong
Pages
657-659
DOI
10.4028/www.scientific.net/AMR.105-106.657
Citation
B. Ge, J. T. Ma, D. S. Ai, X. P. Lin, C. S. Deng, "Preparation of Double-Perovskites Sr2Fe1-xScxMoO6-δ Powders for the Cathode of SOEC by Sol-Gel Citrate Method", Advanced Materials Research, Vols. 105-106, pp. 657-659, 2010
Online since
April 2010
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$32.00
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