Effect of Flexibility and Nanotriboelectrification on the Dynamic Reversibility of Water Intrusion into Nanopores: Pressure-Transmitting Fluid with Frequency-Depending Dissipation Capability

Published

October 30, 2019

Author(s)

Alexander Lowe, Nikolay Tsyrin, Miroslaw Chorazewski, Pawel Zajdel, Michal Mierzwa, Juscelino Leao, Markus Bleuel, Tong Feng, Dong Luo, Mian Li, Dan Li, Victor Stoudenets, Sebastian Pawlus, Abdessamad Faik, Yaroslav Grosu

Abstract

In this work the effect of a porous material´s flexibility on the dynamic reversibility of a non-wetting liquid intrusion was explored experimentally. For this purpose, high-pressure water intrusion together with high-pressure in-situ small angle neutron scattering were applied for superhydrophobic grafted silica and two metal-organic frameworks with different flexibility (ZIF-8 and Cu₂(3,3',5,5'tetraethyl-4,4'-bipyrazolate). These results established the relation between pressurization rate, water intrusion-extrusion hysteresis and porous materials flexibility. It was demonstrated that the dynamic hysteresis of water intrusion into superhydrophobic nanopores can be controlled by the flexibility of a porous material. This opens a new area of applications for flexible metal-organic-frameworks, namely, a smart pressure transmitting fluid, capable of dissipating undesired vibrations depending on their frequency. Finally, it was demonstrated that nanotriboelectrification does not have significant effect on the dynamic hysteresis of water intrusion, while being strongly dependent on a porous material´s topology.

Citation

ACS Applied Materials and Interfaces

Volume

11

Issue

43

Pub Type

Journals

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Keywords

flexibility, porous material, MOF, anti-vibration protection, smart working body, energy storage/dissipation

Citation

Lowe, A. , Tsyrin, N. , Chorazewski, M. , Zajdel, P. , Mierzwa, M. , Leao, J. , Bleuel, M. , Feng, T. , Luo, D. , Li, M. , Li, D. , Stoudenets, V. , Pawlus, S. , Faik, A. and Grosu, Y. (2019), Effect of Flexibility and Nanotriboelectrification on the Dynamic Reversibility of Water Intrusion into Nanopores: Pressure-Transmitting Fluid with Frequency-Depending Dissipation Capability, ACS Applied Materials and Interfaces, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=928511 (Accessed December 30, 2024)