A NEW APPROACH TO ADSORPTION MICROCALORIMETRY BASED ON A LITAO3 PYROELECTRIC TEMPERATURE SENSOR AND A PULSED MOLECULAR-BEAM

Authors
DVORAK L KOVAR M CERNY S
Citation
L. Dvorak et al., A NEW APPROACH TO ADSORPTION MICROCALORIMETRY BASED ON A LITAO3 PYROELECTRIC TEMPERATURE SENSOR AND A PULSED MOLECULAR-BEAM, Thermochimica acta, 245, 1994, pp. 163-171
Citations number
10
Categorie Soggetti
Chemistry Analytical
Journal title
Thermochimica acta → ACNP
ISSN journal
00406031
Volume
245
Year of publication
1994
Pages
163 - 171
Database
ISI
SICI code
0040-6031(1994)245:<163:ANATAM>2.0.ZU;2-G
Abstract
A novel method of measuring heat of adsorption of gases on metal films is described. The method is based on use of a LiTaO3 pyroelectric cry stal to monitor surface temperature changes of a film which are brough t about by adsorption of gas from a pulsed molecular beam generated in a quasi-effusion source. Calibration of the calorimeter is performed by pulsed laser radiation. Advantages of this approach are briefly dis cussed and its potentialities outlined.