Adiabatic burst evaporation from bicontinuous nanoporous membranes

DC FieldValueLanguage
dc.contributor.authorIchilmann, Sachar
dc.contributor.authorRuecker, Kerstin
dc.contributor.authorHaase, Markus
dc.contributor.authorEnke, Dirk
dc.contributor.authorSteinhart, Martin
dc.contributor.authorXue, Longjian
dc.date.accessioned2021-12-23T16:08:04Z-
dc.date.available2021-12-23T16:08:04Z-
dc.date.issued2015
dc.identifier.issn20403364
dc.identifier.urihttps://osnascholar.ub.uni-osnabrueck.de/handle/unios/8211-
dc.description.abstractEvaporation of volatile liquids from nanoporous media with bicontinuous morphology and pore diameters of a few 10 nm is an ubiquitous process. For example, such drying processes occur during syntheses of nanoporous materials by sol-gel chemistry or by spinodal decomposition in the presence of solvents as well as during solution impregnation of nanoporous hosts with functional guests. It is commonly assumed that drying is endothermic and driven by non-equilibrium partial pressures of the evaporating species in the gas phase. We show that nearly half of the liquid evaporates in an adiabatic mode involving burst-like liquid-to-gas conversions. During single adiabatic burst evaporation events liquid volumes of up to 107 mu m(3) are converted to gas. The adiabatic liquid-to-gas conversions occur if air invasion fronts get unstable because of the built-up of high capillary pressures. Adiabatic evaporation bursts propagate avalanche-like through the nanopore systems until the air invasion fronts have reached new stable configurations. Adiabatic cavitation bursts thus compete with Haines jumps involving air invasion front relaxation by local liquid flow without enhanced mass transport out of the nanoporous medium and prevail if the mean pore diameter is in the range of a few 10 nm. The results reported here may help optimize membrane preparation via solvent-based approaches, solution-loading of nanopore systems with guest materials as well as routine use of nanoporous membranes with bicontinuous morphology and may contribute to better understanding of adsorption/desorption processes in nanoporous media.
dc.description.sponsorshipEuropean Research CouncilEuropean Research Council (ERC)European Commission [646742 INCANA]; Alexander von Humboldt FoundationAlexander von Humboldt Foundation; Technical support by the Center of Advanced Light Microscopy Osnabruck and R. Kurre as well as funding by the European Research Council (ERC-CoG-2014; project 646742 INCANA) is gratefully acknowledged. L. X. thanks the Alexander von Humboldt Foundation for a fellowship.
dc.language.isoen
dc.publisherROYAL SOC CHEMISTRY
dc.relation.ispartofNANOSCALE
dc.subjectBEHAVIOR
dc.subjectCAVITATION
dc.subjectChemistry
dc.subjectChemistry, Multidisciplinary
dc.subjectDISPLACEMENT
dc.subjectDRAINAGE
dc.subjectDYNAMICS
dc.subjectHYSTERESIS
dc.subjectJUMPS
dc.subjectMaterials Science
dc.subjectMaterials Science, Multidisciplinary
dc.subjectNanoscience & Nanotechnology
dc.subjectPhysics
dc.subjectPhysics, Applied
dc.subjectPORE BLOCKING
dc.subjectPOROUS-MEDIA
dc.subjectPRESSURE
dc.subjectScience & Technology - Other Topics
dc.titleAdiabatic burst evaporation from bicontinuous nanoporous membranes
dc.typejournal article
dc.identifier.doi10.1039/c5nr01402f
dc.identifier.isiISI:000354456800011
dc.description.volume7
dc.description.issue20
dc.description.startpage9185
dc.description.endpage9193
dc.contributor.orcid0000-0002-5241-8498
dc.contributor.orcid0000-0001-5512-747X
dc.contributor.orcid0000-0002-9686-8810
dc.contributor.researcheridB-7811-2011
dc.contributor.researcheridB-4317-2010
dc.identifier.eissn20403372
dc.publisher.placeTHOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND
dcterms.isPartOf.abbreviationNanoscale
dcterms.oaStatushybrid, Green Published, Green Submitted
crisitem.author.deptInstitut für Chemie neuer Materialien-
crisitem.author.deptidinstitute11-
crisitem.author.orcid0000-0002-9686-8810-
crisitem.author.orcid0000-0002-5241-8498-
crisitem.author.parentorgFB 05 - Biologie/Chemie-
crisitem.author.grandparentorgUniversität Osnabrück-
crisitem.author.netidHaMa954-
crisitem.author.netidStMa946-
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