O-ps lifetimes in iron containing micro- and mesoporous media

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Positron annihilation lifetime (LT) measurements were used to study the influence of addition of iron on ortho-positronium (o-Ps) in micro and mesoporous media. Three types of porous samples containing iron were chosen for the investigation. LT spectra were decomposed to four components in the 0.1 - 50 ns lifetime range. An attempt is made to correlate the data with sites occupied by iron in the framework as derived from Mössbauer studies. No significant correlation could be detected in this respect. Instead, dominating role of presence or absence of iron can be deduced. Certain influence can also be attributed to the presence of adsorbed water

Original languageEnglish
Title of host publicationPositron and Positronium Chemistry X
Pages197-202
Number of pages6
DOIs
Publication statusPublished - Jan 1 2013
Event10th International Workshop on Positron and Positronium Chemistry, PPC-10 - Smolenice Castle, Slovakia
Duration: Sep 5 2011Sep 9 2011

Publication series

NameMaterials Science Forum
Volume733
ISSN (Print)0255-5476

Other

Other10th International Workshop on Positron and Positronium Chemistry, PPC-10
CountrySlovakia
CitySmolenice Castle
Period9/5/119/9/11

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Keywords

  • 57fe mössbauer
  • Porous solids
  • Positron annihilation
  • Trapped o-ps
  • Zeolites

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Dung, T. Q., Lázár, K., Havancsák, K., & Kajcsos, Z. (2013). O-ps lifetimes in iron containing micro- and mesoporous media. In Positron and Positronium Chemistry X (pp. 197-202). (Materials Science Forum; Vol. 733). https://doi.org/10.4028/www.scientific.net/MSF.733.197