Molecular ordering of the adsorbed phase within the microporous moder aluminophosphate AIPO_4-11 at cryogenic temperatures

摘要

The present paper highlights the influence of moleculat sized micropores on the ordering of the adsorbed phase within AIPO_1-11.A range of simple probe molecules was used including:Kr, CH_4,O_2 and CO Their adsorption properties were studied by adsorption microcalorimetrya at 77K and 87K as well as by neutron scattering measurements in the temperature range from 20 to 100k We could highlight a re ordering of the assorbed phase,depending on the natre of the adsorbed molecule and on it interaction with th inner micropore surface.