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AutorRauh, Floriandc.contributor.author
AutorPfeiffer, Jensdc.contributor.author
AutorMizaikoff, Borisdc.contributor.author
Aufnahmedatum2018-04-16T10:38:24Zdc.date.accessioned
In OPARU verfügbar seit2018-04-16T10:38:24Zdc.date.available
Datum der Erstveröffentlichung2017dc.date.issued
ZusammenfassungGas hydrates are ice-like compounds consisting of a rigid water framework hosting small molecules inside crystal cavities. In the present study, a gas hydrate autoclave that enables precise control and observation of temperature and pressure was modified for facilitating in-situ mid-infrared spectroscopic studies on the formation of bulk gas hydrates via a polycrystalline silver halide fiber fitted through the vessel serving as active evanescent field sensing element. Methane hydrates were grown inside the autoclave with addition of three different surfactants, i.e., sodium dodecyl sulfate (SDS), dioctyl sodium sulfosuccinate (Aerosol-OT/AOT), and cetylpyridinium chloride (CPC). The accelerating effect of surface-active molecules on the formation of gas hydrates was studied via fiberoptic evanescent field infrared spectroscopy. Thereby, detailed molecular information on the mechanisms of gas hydrate formation and the role of detergents in that process was collected indicating that remaining free guest molecules are in fact trapped within the interstitial water of gas hydrate crystals. Furthermore, the mechanism of gas hydrate formation proposed earlier by our research team for propane could be confirmed also for methane, and for additional detergents thereby leading to a generic mechanism.dc.description.abstract
Spracheen_USdc.language.iso
Verbreitende StelleUniversität Ulmdc.publisher
LizenzCC BY 3.0dc.rights
Link zum Lizenztexthttps://creativecommons.org/licenses/by/3.0/dc.rights.uri
SchlagwortSurfactantsdc.subject
SchlagwortMethane hydrate formationdc.subject
DDC-SachgruppeDDC 540 / Chemistry & allied sciencesdc.subject.ddc
LCSHInfrared spectroscopydc.subject.lcsh
LCSHSurface active agentsdc.subject.lcsh
LCSHMethanedc.subject.lcsh
TitelInfrared spectroscopy on the role of surfactants during methane hydrate formationdc.title
RessourcentypWissenschaftlicher Artikeldc.type
Version des DokumentspublishedVersiondc.description.version
DOIhttp://dx.doi.org/10.18725/OPARU-6040dc.identifier.doi
URNhttp://nbn-resolving.de/urn:nbn:de:bsz:289-oparu-6097-8dc.identifier.urn
GNDInfrarotspektroskopiedc.subject.gnd
GNDGrenzflächenaktiver Stoffdc.subject.gnd
FakultätFakultät für Naturwissenschaftenuulm.affiliationGeneral
InstitutionInstitut für Analytische und Bioanalytische Chemieuulm.affiliationSpecific
Peer-Reviewjauulm.peerReview
DCMI MedientypTextuulm.typeDCMI
KategoriePublikationenuulm.category
Heftuulm.issue
DOI der Originalpublikation10.1039/C7RA05242Adc.relation1.doi
Quellenangabe - Titel der QuelleRSC Advancessource.title
Quellenangabe - VerlagRoyal Society of Chemistrysource.publisher
Quellenangabe - Band7source.volume
Quellenangabe - Heft62source.issue
Quellenangabe - Jahr2017source.year
Quellenangabe - von Seite39109source.fromPage
Quellenangabe - bis Seite39117source.toPage
Quellenangabe - ISSN2046-2069source.identifier.issn
EU-ProjektSCHEMA / INTEGRATED IN SITU CHEMICAL MAPPING PROBES / EC / FP7 / 614002uulm.projectEU


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