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

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

doi:10.1021/acsami.1c15419

Improvement of the Oxygen Storage/Release Speed of YBaCo₄O_7+δ Synthesized by a Glycine-Complex Decomposition Method

ACS Appl Mater Interfaces. 2021 Nov 3;13(43):51008-51017. doi: 10.1021/acsami.1c15419. Epub 2021 Oct 22.

Authors

Tingru Chen¹, Takuya Hasegawa¹, Yusuke Asakura¹, Masato Kakihana², Teruki Motohashi³, Shu Yin¹

Affiliations

¹ Institute of Multidisciplinary Research for Advanced Materials (IMRAM), Tohoku University, Sendai, Miyagi 980-8577, Japan.
² The Institute of Scientific and Industrial Research, Osaka University, 8-1, Mihogaoka, Ibaraki, Osaka 567-0047, Japan.
³ Department of Materials and Life Chemistry, Kanagawa University, Yokohama 221-8686, Japan.

PMID: 34677948
DOI: 10.1021/acsami.1c15419

Abstract

The present study explores the oxygen storage capacity of YBaCo₄O_7+δ prepared by a glycine-complex decomposition method. We reported for the first time that the YBaCo₄O_7+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 YBaCo₄O_7+δ and provides a new insight into designing other novel oxygen storage materials.

Keywords: YBaCo4O7+δ; glycine-complexing; low synthesis temperature; oxygen absorption/desorption speed; oxygen storage capacity (OSC).