Giant Negative Compressibility by Liquid Intrusion into Superhydrophobic Flexible Nanoporous Frameworks.

Autor: Tortora M; Dipartimento di Ingegneria Meccanica e Aerospaziale, Sapienza Università di Roma, via Eudossiana 18, 00184 Rome, Italy., Zajdel P; Institute of Physics, University of Silesia, 75 Pulku Piechoty 1, 41-500, Chorzow, Poland., Lowe AR; Institute of Chemistry, University of Silesia, Szkolna 9, 40-006 Katowice, Poland., Chorążewski M; Institute of Chemistry, University of Silesia, Szkolna 9, 40-006 Katowice, Poland., Leão JB; NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, United States., Jensen GV; NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, United States.; Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, Delaware 19716, United States., Bleuel M; NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, United States.; Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742-2115, United States., Giacomello A; Dipartimento di Ingegneria Meccanica e Aerospaziale, Sapienza Università di Roma, via Eudossiana 18, 00184 Rome, Italy., Casciola CM; Dipartimento di Ingegneria Meccanica e Aerospaziale, Sapienza Università di Roma, via Eudossiana 18, 00184 Rome, Italy., Meloni S; Dipartimento di Scienze Chimiche e Farmaceutiche (DipSCF), Università degli Studi di Ferrara (Unife), Via Luigi Borsari 46, I-44121, Ferrara, Italy., Grosu Y; Institute of Chemistry, University of Silesia, Szkolna 9, 40-006 Katowice, Poland.; Centre for Cooperative Research on Alternative Energies (CIC energiGUNE), Basque Research and Technology Alliance (BRTA), Alava Technology Park, Albert Einstein 48, 01510 Vitoria-Gasteiz, Spain.
Jazyk: angličtina
Zdroj: Nano letters [Nano Lett] 2021 Apr 14; Vol. 21 (7), pp. 2848-2853. Date of Electronic Publication: 2021 Mar 24.
DOI: 10.1021/acs.nanolett.0c04941
Abstrakt: Materials or systems demonstrating negative linear compressibility (NLC), whose size increases (decreases) in at least one of their dimensions upon compression (decompression) are very rare. Materials demonstrating this effect in all their dimensions, negative volumetric compressibility (NVC), are exceptional. Here, by liquid porosimetry and in situ neutron diffraction, we show that one can achieve exceptional NLC and NVC values by nonwetting liquid intrusion in flexible porous media, namely in the ZIF-8 metal-organic framework (MOF). Atomistic simulations show that the volumetric expansion is due to the presence of liquid in the windows connecting the cavities of ZIF-8. This discovery paves the way for designing novel materials with exceptional NLC and NVC at reasonable pressures suitable for a wide range of applications.
Databáze: MEDLINE