TY  - JOUR
AU  - Kretzschmar, Ansgar
AU  - Selmert, Victor
AU  - Kungl, Hans
AU  - Tempel, Hermann
AU  - Eichel, Rüdiger-A.
TI  - Application of a tailorable carbon molecular sieve to evaluate concepts for the molecular dimensions of gases
JO  - Microporous and mesoporous materials
VL  - 343
SN  - 1387-1811
CY  - Amsterdam [u.a.]
PB  - Elsevier
M1  - FZJ-2022-04747
SP  - 112156 -
PY  - 2022
AB  - 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.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000862789800005
DO  - DOI:10.1016/j.micromeso.2022.112156
UR  - https://juser.fz-juelich.de/record/911476
ER  -