Journal article
Emission and transmission Mossbauer spectroscopic (EMS and TMS) study of perovskite oxides, (Ba, Ca)(Fe, Co)O3-delta absorbed with CO2
Hyperfine interactions, v 112(1-4), pp 7-12
01 Jan 1998
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Perovskite oxides, (Ba0.95Ca0.05) (Co1-x,Fe-x) O3-delta, are prominent materials for CO, absorption at high temperature. The substitution of Ba sites with Ca ion, and the mixed valence states of Fe and Co ions due to the formation of oxygen vacancies at high temperatures are effective for CO2 absorption. Especially Co ions are more active for CO absorption than Fe ions. These oxides were analyzed by EMS and TMS before and after treatment in CO2 atmospheres. The difference between EMS and TMS spectra is found to be observed not only due to the oxygen affinity, but also to the different reactivity of Co and Fe ions in the B site towards CO2.
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Details
- Title
- Emission and transmission Mossbauer spectroscopic (EMS and TMS) study of perovskite oxides, (Ba, Ca)(Fe, Co)O3-delta absorbed with CO2
- Creators
- K Nomura - University of TokyoZ Homonnay - Eötvös Loránd UniversityG Vanko - Eötvös Loránd UniversityA Vertes - Eötvös Loránd UniversityL Poppl - Eötvös Loránd UniversityA Nath - Drexel UniversityY Ujihira - University of TokyoT Hayakawa - National Institute of Material and Chemical Research, Tsukuba Research Center, Tsukuba, Ibaraki, JapanK Takehira - National Institute of Material and Chemical Research, Tsukuba Research Center, Tsukuba, Ibaraki, Japan
- Publication Details
- Hyperfine interactions, v 112(1-4), pp 7-12
- Publisher
- Springer Nature
- Number of pages
- 6
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- [Retired Faculty]
- Web of Science ID
- WOS:000071783000002
- Scopus ID
- 2-s2.0-0002689898
- Other Identifier
- 991019169588704721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Physics, Atomic, Molecular & Chemical
- Physics, Condensed Matter
- Physics, Nuclear