KFU. Card publication. A. S. Alexandrov, R. V. Archipov, A. A. Ivanov, O. I. Gnezdilov, M. R. Gafurov, V. D. Skirda. The Low-Field Pulsed Mode Dynamic Nuclear Polarization in the Pentavalent Chromium Complex and Crude Oils. Applied Magnetic Resonance 45(11), 1275-1287 (2014). DOI: 10.1007/s00723-014-0606-7

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A. S. ALEXANDROV, R. V. ARCHIPOV, A. A. IVANOV, O. I. GNEZDILOV, M. R. GAFUROV, V. D. SKIRDA. THE LOW-FIELD PULSED MODE DYNAMIC NUCLEAR POLARIZATION IN THE PENTAVALENT CHROMIUM COMPLEX AND CRUDE OILS. APPLIED MAGNETIC RESONANCE 45(11), 1275-1287 (2014). DOI: 10.1007/S00723-014-0606-7

Form of presentation

Articles in international journals and collections

Year of publication

2014

Authors, employees of KFU

Aleksandrov Artem Sergeevich, author

Arkhipov Ruslan Viktorovich, author

Gafurov Marat Revgerovich, author

Ivanov Anatoliy Aleksandrovich, author

Skirda Vladimir Dmitrievich, author

Bibliographic description in the original language

A. S. Alexandrov, R. V. Archipov, A. A. Ivanov, O. I. Gnezdilov, M. R. Gafurov, V. D. Skirda. The Low-Field Pulsed Mode Dynamic Nuclear Polarization in the Pentavalent Chromium Complex and Crude Oils. Applied Magnetic Resonance ,45(11), 1275-1287 (2014). DOI: 10.1007/s00723-014-0606-7

Annotation

Measurements of the enhancement of the proton resonance signal right after applying the radiofrequency pulse with the variable duration in the magnetic field of about 100 Gauss on the homebuilt prototype of the dynamic nuclear polarization (DNP) spectrometer at near room temperature are presented. A dependence of the DNP enhancement of the solvent protons of the solution of the pentavalent chromium complex in ethylene glycol on the pumping pulse duration and incident pumping power is given. No DNP effect on the native protons of the crude oils and natural bitumen from the Russian oilfields is observed. A miserable DNP enhancement is registered on the protons of toluene by dissolving the crude oil and bitumen samples. The perspectives of using the results and technical solutions for geological exploration, studies of the asphaltene structures and their dynamics are discussed.

Keywords

molecular systems, crude oil, dynamic nuclear polarization, DNP, NMR, NMR logging

The name of the journal

Applied Magnetic Resonance

URL

http://link.springer.com/article/10.1007/s00723-014-0606-7

Please use this ID to quote from or refer to the card

https://repository.kpfu.ru/eng/?p_id=90020&p_lang=2

Full metadata record

Field DC	Value	Language
dc.contributor.author	Aleksandrov Artem Sergeevich	ru_RU
dc.contributor.author	Arkhipov Ruslan Viktorovich	ru_RU
dc.contributor.author	Gafurov Marat Revgerovich	ru_RU
dc.contributor.author	Ivanov Anatoliy Aleksandrovich	ru_RU
dc.contributor.author	Skirda Vladimir Dmitrievich	ru_RU
dc.date.accessioned	2014-01-01T00:00:00Z	ru_RU
dc.date.available	2014-01-01T00:00:00Z	ru_RU
dc.date.issued	2014	ru_RU
dc.identifier.citation	A. S. Alexandrov, R. V. Archipov, A. A. Ivanov, O. I. Gnezdilov, M. R. Gafurov, V. D. Skirda. The Low-Field Pulsed Mode Dynamic Nuclear Polarization in the Pentavalent Chromium Complex and Crude Oils. Applied Magnetic Resonance ,45(11), 1275-1287 (2014). DOI: 10.1007/s00723-014-0606-7	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/eng/?p_id=90020&p_lang=2	ru_RU
dc.description.abstract	Applied Magnetic Resonance	ru_RU
dc.description.abstract	Measurements of the enhancement of the proton resonance signal right after applying the radiofrequency pulse with the variable duration in the magnetic field of about 100 Gauss on the homebuilt prototype of the dynamic nuclear polarization (DNP) spectrometer at near room temperature are presented. A dependence of the DNP enhancement of the solvent protons of the solution of the pentavalent chromium complex in ethylene glycol on the pumping pulse duration and incident pumping power is given. No DNP effect on the native protons of the crude oils and natural bitumen from the Russian oilfields is observed. A miserable DNP enhancement is registered on the protons of toluene by dissolving the crude oil and bitumen samples. The perspectives of using the results and technical solutions for geological exploration, studies of the asphaltene structures and their dynamics are discussed.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	molecular systems	ru_RU
dc.subject	crude oil	ru_RU
dc.subject	dynamic nuclear polarization	ru_RU
dc.subject	DNP	ru_RU
dc.subject	NMR	ru_RU
dc.subject	NMR logging	ru_RU
dc.title	A. S. Alexandrov, R. V. Archipov, A. A. Ivanov, O. I. Gnezdilov, M. R. Gafurov, V. D. Skirda. The Low-Field Pulsed Mode Dynamic Nuclear Polarization in the Pentavalent Chromium Complex and Crude Oils. Applied Magnetic Resonance 45(11), 1275-1287 (2014). DOI: 10.1007/s00723-014-0606-7	ru_RU
dc.type	Articles in international journals and collections	ru_RU