Monitoring the crystallization stages of silicalite by positron lifetime spectroscopy

Z. Kajcsos, C. Kosanovic, S. Bosnar, B. Subotic, P. Major, L. Liszkay, D. Bosnar, K. Lázár, H. Havancsák, A. T. Luu, N. D. Thanh

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

In porous media, positron annihilation techniques (PAT) revealed the existence of annihilation modi with long lifetimes connected to structural and extrastructural free volumes acting as trapping centres for o-Ps. Our aim in this work was to study the influence of the synthesis applied for the production of the zeolite framework and the correlation between the trapping pattern and crystallization progress. PAT lifetime (LT) measurements were performed in silicalite-1 samples in various stages of crystallization and a large change was observed in the long components. The results are discussed in connection to the crystallization and the availability of free volume.

Original languageEnglish
Pages (from-to)173-176
Number of pages4
JournalMaterials Science Forum
Volume607
DOIs
Publication statusPublished - 2009

Fingerprint

Positrons
Crystallization
positrons
Positron annihilation
Free volume
Spectroscopy
crystallization
positron annihilation
life (durability)
Monitoring
trapping
spectroscopy
Zeolites
availability
Porous materials
Availability
synthesis

Keywords

  • Crystallization
  • Free volume
  • Gel ageing
  • Positronium formation
  • Zeolites

ASJC Scopus subject areas

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

Cite this

Kajcsos, Z., Kosanovic, C., Bosnar, S., Subotic, B., Major, P., Liszkay, L., ... Thanh, N. D. (2009). Monitoring the crystallization stages of silicalite by positron lifetime spectroscopy. Materials Science Forum, 607, 173-176. https://doi.org/10.4028/0-87849-348-4.173

Monitoring the crystallization stages of silicalite by positron lifetime spectroscopy. / Kajcsos, Z.; Kosanovic, C.; Bosnar, S.; Subotic, B.; Major, P.; Liszkay, L.; Bosnar, D.; Lázár, K.; Havancsák, H.; Luu, A. T.; Thanh, N. D.

In: Materials Science Forum, Vol. 607, 2009, p. 173-176.

Research output: Contribution to journalArticle

Kajcsos, Z, Kosanovic, C, Bosnar, S, Subotic, B, Major, P, Liszkay, L, Bosnar, D, Lázár, K, Havancsák, H, Luu, AT & Thanh, ND 2009, 'Monitoring the crystallization stages of silicalite by positron lifetime spectroscopy', Materials Science Forum, vol. 607, pp. 173-176. https://doi.org/10.4028/0-87849-348-4.173
Kajcsos, Z. ; Kosanovic, C. ; Bosnar, S. ; Subotic, B. ; Major, P. ; Liszkay, L. ; Bosnar, D. ; Lázár, K. ; Havancsák, H. ; Luu, A. T. ; Thanh, N. D. / Monitoring the crystallization stages of silicalite by positron lifetime spectroscopy. In: Materials Science Forum. 2009 ; Vol. 607. pp. 173-176.
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