Paper Title:
Preparation and Oxygen Intake/Release Characteristics of YBaCo2Fe2O7
  Abstract

A novel compound YBaCo2Fe2O7 was synthesized successfully under low surrounding oxygen partial pressure by selecting raw materials Fe2O3 and Fe to fix the oxygen content to “O7” in YBaCo2Fe2O7. Its oxygen intake/release characteristics were investigated by the thermogravimetric (TG) analysis from room temperature to 1150°C. The YBaCo2Fe2O7 sample exhibits a weak oxygen intake capability at lower temperature 360°C. On the other hand, the oxygen intake/release cycles of YBaCo2Fe2O7 were investigated between 340°C and 410°C. The experimental results show that it has good and stable oxygen intake/release reproducibility, and that its mass change of oxygen reaches 0.6% of its original mass within 40 minutes. However, after partial substitution, the oxygen storage capability of YBaCo2Fe2O7 is worse than YBaCo4O7. The previous results mean that YBaCo2Fe2O7 is not enough as a novel candidate for oxygen storage or separation materials.

  Info
Periodical
Advanced Materials Research (Volumes 306-307)
Chapter
Chapter 10: Environmental and Green Materials
Edited by
Shiquan Liu and Min Zuo
Pages
1520-1523
DOI
10.4028/www.scientific.net/AMR.306-307.1520
Citation
S. M. Zhang, H. Z. Song, X. H. Su, J. F. Jia, D. L. Yang, H. W. Sun, X. Hu, "Preparation and Oxygen Intake/Release Characteristics of YBaCo2Fe2O7", Advanced Materials Research, Vols. 306-307, pp. 1520-1523, 2011
Online since
August 2011
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$32.00
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