Improvement of the Oxygen Storage/Release Speed of YBaCo4O7+δSynthesized by a Glycine-Complex Decomposition Method

Tingru Chen, Takuya Hasegawa, Yusuke Asakura, Masato Kakihana, Teruki Motohashi, Shu Yin*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


The present study explores the oxygen storage capacity of YBaCo4O7+δ prepared by a glycine-complex decomposition method. We reported for the first time that the YBaCo4O7+δ sample was successfully synthesized at such a low temperature of 800 °C by this method. The YBCO-800 N sample exhibited a faster oxygen absorption/desorption speed than that of high calcination temperature samples, and the time required for complete oxygen storage/release was 5 and 6 min at 360 °C, respectively. Moreover, the superior performance observed for this product in the temperature swing adsorption process makes it a promising candidate in oxygen production technologies. This research demonstrated that the glycine-complex decomposition method is an effective method for improving the oxygen storage property of YBaCo4O7+δ and provides a new insight into designing other novel oxygen storage materials.

Original languageEnglish
JournalACS Applied Materials and Interfaces
Publication statusAccepted/In press - 2021
Externally publishedYes


  • glycine-complexing
  • low synthesis temperature
  • oxygen absorption/desorption speed
  • oxygen storage capacity (OSC)
  • YBaCoO

ASJC Scopus subject areas

  • Materials Science(all)


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