Crystallite Size: Tailoring Intrusion-Extrusion Systems for Application
Liam Johnson, CIC EnergiGUNE, Vitoria-Gasteiz, Álava, Spagna
The behaviour of Heterogeneous Lyophobic Systems (HLSs) comprised of a lyophobic porous material and a corresponding non-wetting liquid is affected by a variety of different structural parameters of the porous material. Dependence on an exogeneous property such as crystallite size is desirable for system tuning, as it is easily modified. We explore the dependence of intrusion/extrusion pressures and intruded volume on crystallite size, testing the hypothesis that the connection between internal cavities and bulk water facilitates intrusion via hydrogen bonding, a phenomenon that is magnified in smaller crystallites with a larger surface/volume ratio.1
In addition, other properties are explored: flexibility, negative compressibility,2 heat of intrusionextrusion, 3,4 and finally contact electrification,5 a concept which is at the heart of the ElectroIntrusion project.
Wednesday the 5th of February 2025,at 11 in Sala Videoconferenze
Sala Videoconferenze, Dipartimento di Ingegneria Meccanica e Aerospaziale Facoltà di Ingegneria, Sapienza Università di Roma - Via Eudossiana 18, Roma
Link to follow online: meet.google.com/wvz-epcb-tfa
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