Positronium interactions in synthetic zeolites: Effect of adsorbed water

L. Liszkay, Z. Kajcsos, G. Duplâtre, K. Lázár, Borbély G. Páł, H. K. Beyer

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Synthetic Na-mordenite and Na-Y zeolites were studied by means of positron lifetime measurements and extended Doppler spectroscopy. From the lifetime and Doppler parameters (parapositronium peak, 3γ-annihilation ratio etc.) the influence of water on the formation and annihilation of orthopositronium o-Ps in the channels and cages was investigated. A comparison with thermogravimetry (TG) measurements has shown that the long-lived (o-Ps) component appears already at relatively high water content. The reversible temperature dependence at elevated temperatures might indicate thermal equilibrium of o-Ps with the zeolite lattice.

Original languageEnglish
Pages (from-to)377-379
Number of pages3
JournalMaterials Science Forum
Volume363-365
Publication statusPublished - 2001

Fingerprint

Zeolites
positronium
zeolites
life (durability)
Water
Positrons
thermogravimetry
Water content
water
moisture content
Thermogravimetric analysis
positrons
interactions
Spectroscopy
Temperature
temperature dependence
spectroscopy
temperature
mordenite
Hot Temperature

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Positronium interactions in synthetic zeolites : Effect of adsorbed water. / Liszkay, L.; Kajcsos, Z.; Duplâtre, G.; Lázár, K.; Páł, Borbély G.; Beyer, H. K.

In: Materials Science Forum, Vol. 363-365, 2001, p. 377-379.

Research output: Contribution to journalArticle

@article{e749bf4cabd442688bd2da370d9d3f84,
title = "Positronium interactions in synthetic zeolites: Effect of adsorbed water",
abstract = "Synthetic Na-mordenite and Na-Y zeolites were studied by means of positron lifetime measurements and extended Doppler spectroscopy. From the lifetime and Doppler parameters (parapositronium peak, 3γ-annihilation ratio etc.) the influence of water on the formation and annihilation of orthopositronium o-Ps in the channels and cages was investigated. A comparison with thermogravimetry (TG) measurements has shown that the long-lived (o-Ps) component appears already at relatively high water content. The reversible temperature dependence at elevated temperatures might indicate thermal equilibrium of o-Ps with the zeolite lattice.",
author = "L. Liszkay and Z. Kajcsos and G. Dupl{\^a}tre and K. L{\'a}z{\'a}r and P{\'a}ł, {Borb{\'e}ly G.} and Beyer, {H. K.}",
year = "2001",
language = "English",
volume = "363-365",
pages = "377--379",
journal = "Materials Science Forum",
issn = "0255-5476",
publisher = "Trans Tech Publications",

}

TY - JOUR

T1 - Positronium interactions in synthetic zeolites

T2 - Effect of adsorbed water

AU - Liszkay, L.

AU - Kajcsos, Z.

AU - Duplâtre, G.

AU - Lázár, K.

AU - Páł, Borbély G.

AU - Beyer, H. K.

PY - 2001

Y1 - 2001

N2 - Synthetic Na-mordenite and Na-Y zeolites were studied by means of positron lifetime measurements and extended Doppler spectroscopy. From the lifetime and Doppler parameters (parapositronium peak, 3γ-annihilation ratio etc.) the influence of water on the formation and annihilation of orthopositronium o-Ps in the channels and cages was investigated. A comparison with thermogravimetry (TG) measurements has shown that the long-lived (o-Ps) component appears already at relatively high water content. The reversible temperature dependence at elevated temperatures might indicate thermal equilibrium of o-Ps with the zeolite lattice.

AB - Synthetic Na-mordenite and Na-Y zeolites were studied by means of positron lifetime measurements and extended Doppler spectroscopy. From the lifetime and Doppler parameters (parapositronium peak, 3γ-annihilation ratio etc.) the influence of water on the formation and annihilation of orthopositronium o-Ps in the channels and cages was investigated. A comparison with thermogravimetry (TG) measurements has shown that the long-lived (o-Ps) component appears already at relatively high water content. The reversible temperature dependence at elevated temperatures might indicate thermal equilibrium of o-Ps with the zeolite lattice.

UR - http://www.scopus.com/inward/record.url?scp=0035012113&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0035012113&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0035012113

VL - 363-365

SP - 377

EP - 379

JO - Materials Science Forum

JF - Materials Science Forum

SN - 0255-5476

ER -