CO2 absorption of perovskites as seen by positron lifetime spectroscopy

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Abstract

The CO2 absorption of several ABO3 type perovskites was studied by positron lifetime spectroscopy. The longer positron lifetime was associated with positrons trapped by A site vacancies. The evaluated positron lifetime data indicated the relative stability of the crystal structure of Sr(Co0.5Fe0.5)O(3-δ) against Ca doping at low Ca concentrations. Oxygen desorption and CO2 absorption/desorption could also be followed by positron lifetime spectroscopy. It was shown that the concentration of oxygen vacancies has a large effect on positron lifetime data through the electron density of A site vacancies. Copyright (C) 2000 Elsevier Science Ltd.

Original languageEnglish
Pages (from-to)733-736
Number of pages4
JournalRadiation Physics and Chemistry
Volume58
Issue number5-6
DOIs
Publication statusPublished - Jun 1 2000

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perovskites
positrons
life (durability)
spectroscopy
desorption
oxygen
crystal structure

ASJC Scopus subject areas

  • Radiation

Cite this

CO2 absorption of perovskites as seen by positron lifetime spectroscopy. / Süvegh, K.; Nomura, K.; Juhász, G.; Homonnay, Z.; Vértes, A.

In: Radiation Physics and Chemistry, Vol. 58, No. 5-6, 01.06.2000, p. 733-736.

Research output: Contribution to journalArticle

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