@misc{10481/96626,
year = {2024},
month = {10},
url = {https://hdl.handle.net/10481/96626},
abstract = {Due to their similar boiling points, separation of benzene and cyclohexane
mixtures is among the current challenging processes faced by the petrochemical
industry. As recently assessed, the soft imine-based covalent organic framework
[(TAM)(BDA)2] (COF-300; TAM = tetrakis(4-aminophenyl)methane, BDA =
terephthaldehyde) possesses higher affinity for benzene than cyclohexane in
both static conditions at 298 K and dynamic conditions in the range of
298–348 K. As shown in this contribution, in situ powder X-ray diffraction while
dosing benzene and cyclohexane vapors in the range of 0.01–4.74 bar on the
narrow-pore form of COF-300 confirmed the coherent switchability of its framework,
unveiling the progressive formation of different intermediate- and large-pore
forms. In addition, a basket of otherwise inaccessible key crystallochemical
details—“on/off” structural-feature changes cooperating to adsorption, primary
adsorption sites, and host–guest and guest–guest interactions—was successfully
retrieved. Overall, these findings allowed to shed light on the framework dynamics
underneath the previously observed selectivity toward benzene over cyclohexane,
completing this case of study and providing relevant information for the design of
new-generation adsorbents for this applicative context.},
organization = {Università degli Studi dell’Insubria},
organization = {Spanish MCIN/
AEI/10.13039/501100011033 (Project TED2021-129886B-C41; PID2020-
113608RB-I00)},
organization = {Fondazione CRUI for a 1 year
postdoctoral grant (Go4IT, 2020)},
organization = {Programa Juan de la
Cierva Formación (grant no. FJC2020-045043-I)},
publisher = {Wiley Online Library},
title = {Investigating the Dynamics of a Soft Crystalline Covalent Organic Framework during Benzene and Cyclohexane Adsorption by in situ Powder X-ray Diffraction},
doi = {10.1002/smsc.202400277},
author = {Mauri, Anna and Vismara, Rebecca and Moroni, Marco and Roldán-Molina, Esther and Rodríguez Navarro, Jorge Andrés},
}