Publication:
Dynamic nuclear polarization in suspensions consisting of pure and mixed chlorobenzene and pyridine and asphaltene extracted from asphalt cement with penetration grad 60

dc.contributor.authorErsözlü, Nihal Uran
dc.contributor.authorPeksöz, Ahmet
dc.contributor.authorOvalıoğlu, Hüseyin
dc.contributor.authorKırımlı, Handan Engin
dc.contributor.authorÇimenoğlu, M. Akif
dc.contributor.authorYalcıner, Aytaç
dc.contributor.buuauthorErsözlü, Nihal Uran
dc.contributor.buuauthorPEKSÖZ, AHMET
dc.contributor.buuauthorOVALIOĞLU, HÜSEYİN
dc.contributor.buuauthorENGİN KIRIMLI, HANDAN
dc.contributor.buuauthorYalcıner, Aytaç
dc.contributor.departmentFen Edebiyat Fakültesi
dc.contributor.departmentFizik Bölümü
dc.contributor.researcheridAAG-9772-2021
dc.contributor.researcheridCNW-0707-2022
dc.contributor.researcheridFEJ-0053-2022
dc.contributor.researcheridESV-4962-2022
dc.contributor.researcheridJMG-7111-2023
dc.date.accessioned2024-11-06T06:48:41Z
dc.date.available2024-11-06T06:48:41Z
dc.date.issued2008-06-01
dc.description.abstractThe Overhauser effect type dynamic nuclear polarization experiments were performed to study suspensions of asphaltene in pure and mixed chlorobenzene and pyridine at a low magnetic field of 1.44 mT and in four different temperatures (-10, 7, 23, and 38 degrees C). The asphaltene was extracted from asphalt cement with penetration grad 60. Intermolecular spin-spin interactions occur between nuclear spins of hydrogen in the suspending fluid medium and the impaired electron spins in the asphaltene micelles. The electron paramagnetic resonance spectrum of the asphaltene was obtained and the saturation experiments were applied to the samples prepared in vacuum. For all suspending fluid media used in this work, the dipole-dipole interaction is predominant due to the negative signal enhancements. In all temperatures, the dipolar part is the smallest (-9.17) for pure pyridine solvent medium at -10 degrees C and the highest (-38.2) for pure chlorobenzene solvent medium at 38 degrees C and between these two limits for mixed solvent media at all temperatures.
dc.identifier.doi10.1080/01932690701783556
dc.identifier.endpage904
dc.identifier.issn0193-2691
dc.identifier.issue6
dc.identifier.startpage899
dc.identifier.urihttps://doi.org/10.1080/01932690701783556
dc.identifier.urihttps://www.tandfonline.com/doi/full/10.1080/01932690701783556
dc.identifier.urihttps://hdl.handle.net/11452/47473
dc.identifier.volume29
dc.identifier.wos000256802700019
dc.indexed.wosWOS.SCI
dc.language.isoen
dc.publisherTaylor & Francis Inc
dc.relation.journalJournal of Dispersion Science and Technology
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectDouble-resonance
dc.subjectRelaxation
dc.subjectAsphaltene
dc.subjectDnp
dc.subjectDouble resonance
dc.subjectIntermolecular spin-spin interaction
dc.subjectOverhauser effect
dc.subjectChemistry
dc.titleDynamic nuclear polarization in suspensions consisting of pure and mixed chlorobenzene and pyridine and asphaltene extracted from asphalt cement with penetration grad 60
dc.typeArticle
dspace.entity.typePublication
local.contributor.departmentFen Edebiyat Fakültesi/Fizik Bölümü
relation.isAuthorOfPublication541fd51a-63d1-416b-855f-64e10965bb9b
relation.isAuthorOfPublicationf8ee3a42-17ea-46b6-863a-56bf9ed25265
relation.isAuthorOfPublicationd6233b68-6960-47ef-9dd7-2296a0afed79
relation.isAuthorOfPublication.latestForDiscovery541fd51a-63d1-416b-855f-64e10965bb9b

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