Published October 31, 2008 | Version v1
Journal article Metadata-only

Capillary condensation in porous alumina observed by positronium lifetime spectroscopy

Creators

  • 1. Center for Advanced Studies in Physics of the Roumanian Academy, Casa Academiei Romane, Calea 13 Septembrie No. 13, Bucharest (Romania)
  • 2. National Institute for Nuclear Physics and Engineering-Horia Hulubei, Atomistilor Street 407, CP MG 06, Magurele, Bucharest (Romania)

Description

The PALS method based on time distribution measurements has been used to study capillary condensation of different gases adsorbed in microporous alumina powder. The isotherms exhibit features which are associated with a shifted gas-liquid transition. The sorption and desorption processes are irreversible presenting a hysteresis effect. Suggestions on some new aspects of the capillary condensation dynamics are made

Availability note (English)

Available from http://dx.doi.org/10.1016/j.apsusc.2008.05.285

Additional details

Identifiers

DOI
10.1016/j.apsusc.2008.05.285;
PII
S0169-4332(08)01214-2;

Publishing Information

Journal Title
Applied Surface Science
Journal Volume
255
Journal Issue
1
Journal Page Range
p. 194-196
ISSN
0169-4332
CODEN
ASUSEE

Conference

Title
11. international workshop on slow positron beam techniques for solids and surfaces
Acronym
LOPOS-11
Dates
9-13 Jul 2007
Place
Orleans (France)

INIS

Country of Publication
Netherlands
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
40082970
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ALUMINIUM OXIDES; ANNIHILATION; CAPILLARIES; DESORPTION; GASES; HYSTERESIS; ISOTHERMS; LIFETIME; LIQUIDS; POROUS MATERIALS; POSITRONIUM; POWDERS; SPECTROSCOPY
Descriptors DEC
ALUMINIUM COMPOUNDS; BLOOD VESSELS; BODY; CARDIOVASCULAR SYSTEM; CHALCOGENIDES; FLUIDS; INTERACTIONS; MATERIALS; ORGANS; OXIDES; OXYGEN COMPOUNDS; PARTICLE INTERACTIONS; SORPTION

Optional Information

Copyright
Copyright (c) 2008 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.