000292357 001__ 292357
000292357 005__ 20250730113731.0
000292357 0247_ $$2doi$$a10.1016/j.supflu.2015.05.024
000292357 0247_ $$2ISSN$$a0896-8446
000292357 0247_ $$2ISSN$$a1872-8162
000292357 0247_ $$2WOS$$aWOS:000363348500008
000292357 0247_ $$2openalex$$aopenalex:W377059932
000292357 037__ $$aPUBDB-2015-06044
000292357 082__ $$a540
000292357 1001_ $$0P:(DE-HGF)0$$aBehr, Wolfgang$$b0
000292357 245__ $$aSelf diffusion coefficients of organic solvents and their binary mixtures with CO2 in silica alcogels at pressures up to 6MPa derived by NMR pulsed gradient spin echo
000292357 260__ $$aAmsterdam [u.a.]$$bElsevier Science$$c2015
000292357 3367_ $$2DRIVER$$aarticle
000292357 3367_ $$2DataCite$$aOutput Types/Journal article
000292357 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article$$bjournal$$mjournal$$s1465401483_12519
000292357 3367_ $$2BibTeX$$aARTICLE
000292357 3367_ $$2ORCID$$aJOURNAL_ARTICLE
000292357 3367_ $$00$$2EndNote$$aJournal Article
000292357 500__ $$a(c) Elsevier B.V. Post referee full text in progress.
000292357 520__ $$aSelf diffusion coefficients were determined using NMR (nuclear magnetic resonance) pulsed gradient spin echo (PGSE) in combination with a special high pressure autoclave. The goal was to determine the self diffusion coefficients for different CO$_{2}$/methanol and CO2/ethanol mixtures within the pore phase of silica alcogels at pressures up to 6 MPa. These values are required as input data for the modeling of process steps preceding the supercritical drying of these gels.The self diffusion coefficients derived with the set-up at 15 °C for unconfined CO$_{2}$/methanol and CO$_{2}$/ethanol mixtures as a function of concentration of the organic solvent as well as of fluid pressure are in line with results from previous publications thus proofing the approach to provide reliable data.Measurements of self diffusion coefficients of methanol at different pressures and methanol/CO$_{2}$ ratios were performed in tetramethoxysilane based silica alcogels with target densities ranging from 80 to 200 kg/m3; the results reveal tortuosities of up to 2.5 depending on the silica fraction in the gel as well as its structure. The experimental self diffusion coefficients are in good agreement with the transport diffusion coefficient determined from time resolved NMR imaging of a fluid exchange within a alcogel of methanol for CO$_{2}$ at 5.8 MPa.
000292357 536__ $$0G:(DE-HGF)POF3-899$$a899 - ohne Topic (POF3-899)$$cPOF3-899$$fPOF III$$x0
000292357 588__ $$aDataset connected to CrossRef
000292357 693__ $$0EXP:(DE-H253)D-B1-20150101$$1EXP:(DE-H253)DORISIII-20150101$$6EXP:(DE-H253)D-B1-20150101$$aDORIS III$$fDORIS Beamline B1$$x0
000292357 7001_ $$0P:(DE-HGF)0$$aBehr, Volker C.$$b1
000292357 7001_ $$0P:(DE-H253)PIP1010896$$aReichenauer, G.$$b2$$eCorresponding author
000292357 773__ $$0PERI:(DE-600)2021726-2$$a10.1016/j.supflu.2015.05.024$$gVol. 106, p. 50 - 56$$p50 - 56$$tThe journal of supercritical fluids$$v106$$x0896-8446$$y2015
000292357 8564_ $$uhttps://bib-pubdb1.desy.de/record/292357/files/10.1016_j.supflu.2015.05.024.pdf$$yRestricted
000292357 8564_ $$uhttps://bib-pubdb1.desy.de/record/292357/files/10.1016_j.supflu.2015.05.024.gif?subformat=icon$$xicon$$yRestricted
000292357 8564_ $$uhttps://bib-pubdb1.desy.de/record/292357/files/10.1016_j.supflu.2015.05.024.jpg?subformat=icon-1440$$xicon-1440$$yRestricted
000292357 8564_ $$uhttps://bib-pubdb1.desy.de/record/292357/files/10.1016_j.supflu.2015.05.024.jpg?subformat=icon-180$$xicon-180$$yRestricted
000292357 8564_ $$uhttps://bib-pubdb1.desy.de/record/292357/files/10.1016_j.supflu.2015.05.024.jpg?subformat=icon-640$$xicon-640$$yRestricted
000292357 8564_ $$uhttps://bib-pubdb1.desy.de/record/292357/files/10.1016_j.supflu.2015.05.024.pdf?subformat=pdfa$$xpdfa$$yRestricted
000292357 909CO $$ooai:bib-pubdb1.desy.de:292357$$pVDB
000292357 9101_ $$0I:(DE-HGF)0$$6P:(DE-H253)PIP1010896$$aExternes Institut$$b2$$k>Extern
000292357 9131_ $$0G:(DE-HGF)POF3-899$$1G:(DE-HGF)POF3-890$$2G:(DE-HGF)POF3-800$$3G:(DE-HGF)POF3$$4G:(DE-HGF)POF$$aDE-HGF$$bProgrammungebundene Forschung$$lohne Programm$$vohne Topic$$x0
000292357 9141_ $$y2015
000292357 915__ $$0StatID:(DE-HGF)0420$$2StatID$$aNationallizenz
000292357 915__ $$0StatID:(DE-HGF)0300$$2StatID$$aDBCoverage$$bMedline
000292357 915__ $$0StatID:(DE-HGF)0100$$2StatID$$aJCR$$bJ SUPERCRIT FLUID : 2014
000292357 915__ $$0StatID:(DE-HGF)0200$$2StatID$$aDBCoverage$$bSCOPUS
000292357 915__ $$0StatID:(DE-HGF)0199$$2StatID$$aDBCoverage$$bThomson Reuters Master Journal List
000292357 915__ $$0StatID:(DE-HGF)0110$$2StatID$$aWoS$$bScience Citation Index
000292357 915__ $$0StatID:(DE-HGF)0150$$2StatID$$aDBCoverage$$bWeb of Science Core Collection
000292357 915__ $$0StatID:(DE-HGF)0111$$2StatID$$aWoS$$bScience Citation Index Expanded
000292357 915__ $$0StatID:(DE-HGF)1150$$2StatID$$aDBCoverage$$bCurrent Contents - Physical, Chemical and Earth Sciences
000292357 915__ $$0StatID:(DE-HGF)1160$$2StatID$$aDBCoverage$$bCurrent Contents - Engineering, Computing and Technology
000292357 915__ $$0StatID:(DE-HGF)9900$$2StatID$$aIF < 5
000292357 9201_ $$0I:(DE-H253)HAS-User-20120731$$kDOOR$$lDOOR-User$$x0
000292357 980__ $$ajournal
000292357 980__ $$aVDB
000292357 980__ $$aI:(DE-H253)HAS-User-20120731
000292357 980__ $$aUNRESTRICTED