%0 Journal Article
%A Kretzschmar, Ansgar
%A Selmert, Victor
%A Kungl, Hans
%A Tempel, Hermann
%A Eichel, Rüdiger-A.
%T Application of a tailorable carbon molecular sieve to evaluate concepts for the molecular dimensions of gases
%J Microporous and mesoporous materials
%V 343
%@ 1387-1811
%C Amsterdam [u.a.]
%I Elsevier
%M FZJ-2022-04747
%P 112156 -
%D 2022
%X Molecular sieves have attracted considerable interest for gas separation applications due to their ability todiscriminate substances by their molecule’s size. To predict if a molecular sieve is suitable for a specific separationproblem an accurate measure of the molecular sizes is called for. Furthermore, a high precision in estimationsfor molecular dimensions is needed for the characterization of materials using molecular probes. In thiswork, different popular concepts to estimate the size of a gas molecule, specifically Breck’s kinetic diameter, thecritical diameter and molecular dimensions by Webster (MIN-1) are discussed. These concepts are evaluatedusing a tailorable carbon molecular sieve. It is concluded, that the widely used kinetic diameter has somedrawbacks to determine the accessibility of pores. Finally, recommendations for alternatives from existingliterature are presented.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000862789800005
%R 10.1016/j.micromeso.2022.112156
%U https://juser.fz-juelich.de/record/911476