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Eine Apparatur zur Desorptionsspektroskopie an porösen Festkörpern bei tiefen Temperaturen
Author(s) -
Fietzke F.,
Jäckel M.
Publication year - 1993
Publication title -
vakuum in forschung und praxis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.213
H-Index - 13
eISSN - 1522-2454
pISSN - 0947-076X
DOI - 10.1002/vipr.19930050410
Subject(s) - materials science , atmospheric temperature range , desorption , analytical chemistry (journal) , chemistry , thermodynamics , physics , adsorption , chromatography
A newly developed apparatus for Temperature Programmed Desorption spectroscopy (TPD) in the temperature range between 10 and 100 K is presented. It is provided for the investigation of porous solids especially for use in vacuum engineering, for instance activated charcoal and zeolithe. Favoured working regime is a linear temperature schedule with some parts of a Kelvin per minute, but all other schedules and a variation of the heating rate over the factor 10 are also available. The whole measuring process takes place automatically and under computer control – so a simultaneous registration of a large number of measured gases is possible.