Authors:
H. Hao

Search for other papers by H. Hao in
Current site
Google Scholar
PubMed
Close
,
L. Zhao Henan Institute of Engineering Department of Mathematical and Physical Sciences Zhengzhou 451191 China

Search for other papers by L. Zhao in
Current site
Google Scholar
PubMed
Close
,
X. Hu Zhengzhou University Key Laboratory of Material Physics of Ministry of Education of China Zhengzhou 450052 China

Search for other papers by X. Hu in
Current site
Google Scholar
PubMed
Close
, and
H. Hou Zhengzhou University Department of Chemistry Zhengzhou 450052 China

Search for other papers by H. Hou in
Current site
Google Scholar
PubMed
Close
Restricted access

Abstract  

YBaCo4O7 compound is capable to intake and release a large amount of oxygen in the temperature range of 200–400°C. In the present study, the effect of Zn, Ga and Fe substitution for Co on the oxygen adsorption/desorption properties of YBaCo4O7 were investigated by thermogravimetry (TG) method. Due to fixed oxidation state of Zn2+ ions, the substitution of Zn2+ for Co2+ suppresses the oxygen adsorption of YBaCo4−xZnxO7. The substitution of Ga3+ for Co3+ also decreases the oxygen absorption capacity of YBaCo4−xGaxO7. This can be explained by the strong affinity of Ga3+ ions towards the GaO4 tetrahedron. Compared with Zn- and Ga-substituted samples, the drop of oxygen adsorption capacity is smallest for Fe-substituted samples because of the similar changeability of oxidation states of Co and Fe ions.

  • Collapse
  • Expand

To see the editorial board, please visit the website of Springer Nature.

Manuscript Submission: HERE

For subscription options, please visit the website of Springer Nature.

Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation
1969
Volumes
per Year
1
Issues
per Year
24
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

Monthly Content Usage

Abstract Views Full Text Views PDF Downloads
Jan 2024 14 0 2
Feb 2024 5 0 0
Mar 2024 3 1 0
Apr 2024 3 0 0
May 2024 2 0 0
Jun 2024 1 0 0
Jul 2024 0 0 0