Turning Molecular Springs into Nano-Shock Absorbers: The Effect of Macroscopic Morphology and Crystal Size on the Dynamic Hysteresis of Water Intrusion–Extrusion into-from Hydrophobic Nanopores
P. Zajdel, David G. Madden, Robin Babu, Marco Tortora, Diego Mirani, Nikolay Tsyrin, Luis Bartolomé, Eder Amayuelas, David Fairen‐Jiménez, Alexander R. Lowe, Mirosław Chorążewski, Juscelino B. Leão, Craig M. Brown, Markus Bleuel, Victor Stoudenets, Carlo Massimo Casciola, María Echeverria, Francisco Bonilla, Giulia Grancini, Simone Meloni, Yaroslav Grosu
Abstract
neutron scattering. We report a drastic increase in intrusion-extrusion dynamic hysteresis when going from a fine powder to a dense monolith configuration, transforming an intermediate performance of the ZIF-8 + water system (poor molecular spring) into a desirable shock-absorber with more than 1 order of magnitude enhancement of dissipated energy per cycle. The obtained results are supported by MD simulations and pave the way for an alternative methodology of tuning intrusion-extrusion pressure using a macroscopic arrangement of nanoporous material.