Show simple item record

AuthorRauh, Floriandc.contributor.author
AuthorPfeiffer, Jensdc.contributor.author
AuthorMizaikoff, Borisdc.contributor.author
Date of accession2018-04-16T10:38:24Zdc.date.accessioned
Available in OPARU since2018-04-16T10:38:24Zdc.date.available
Date of first publication2017dc.date.issued
AbstractGas 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
Languageen_USdc.language.iso
PublisherUniversität Ulmdc.publisher
LicenseCC BY 3.0dc.rights
Link to license texthttps://creativecommons.org/licenses/by/3.0/dc.rights.uri
KeywordSurfactantsdc.subject
KeywordMethane hydrate formationdc.subject
Dewey Decimal GroupDDC 540 / Chemistry & allied sciencesdc.subject.ddc
LCSHInfrared spectroscopydc.subject.lcsh
LCSHSurface active agentsdc.subject.lcsh
LCSHMethanedc.subject.lcsh
TitleInfrared spectroscopy on the role of surfactants during methane hydrate formationdc.title
Resource typeWissenschaftlicher Artikeldc.type
VersionpublishedVersiondc.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
FacultyFakultät für Naturwissenschaftenuulm.affiliationGeneral
InstitutionInstitut für Analytische und Bioanalytische Chemieuulm.affiliationSpecific
Peer reviewjauulm.peerReview
DCMI TypeTextuulm.typeDCMI
CategoryPublikationenuulm.category
Issueuulm.issue
DOI of original publication10.1039/C7RA05242Adc.relation1.doi
Source - Title of sourceRSC Advancessource.title
Source - Place of publicationRoyal Society of Chemistrysource.publisher
Source - Volume7source.volume
Source - Issue62source.issue
Source - Year2017source.year
Source - From page39109source.fromPage
Source - To page39117source.toPage
Source - ISSN2046-2069source.identifier.issn
EU projectSCHEMA / INTEGRATED IN SITU CHEMICAL MAPPING PROBES / EC / FP7 / 614002uulm.projectEU


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record

CC BY 3.0
Except where otherwise noted, this item's license is described as CC BY 3.0