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In September 2021, Professor Douglas Morris Ruthven, one of the pioneers of sorption research, passed away completely unexpectedly. The many research areas he has enriched with his contributions include, in particular, the field of diffusion, i.e., the random movement of guest diffusion in nanoporous materials. When NMR diffusometry was first used to study this phenomenon almost half a century ago,...
Die Zeolithe NaX und NaY besitzen ein Mikroporensystem mit Zutrittsöffnungen von 0,74 nm. In der dealuminierten Form des NaY (DAY) liegen auch Mesoporen vor. NaX und NaY dienen der Aufbereitung von Molekülgemischen, wie Trocknung von Gasen und Dämpfen und zur Stofftrennung. DAY wird als Crack‐Katalysator eingesetzt. Neben der Einlagerung passender Moleküle in die Mikro‐ und Mesoporen können aber auch...
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