Diffusion in Nanoporous Materials: from Paradigm Shift by Zhdanov Zeolites Till Recent Insight.
Saved in:
| Title: | Diffusion in Nanoporous Materials: from Paradigm Shift by Zhdanov Zeolites Till Recent Insight. |
|---|---|
| Authors: | Kärger, J.1 (AUTHOR) kaerger@physik.uni-leipzig.de, Freude, D.1 (AUTHOR), Ivanova, I. I.2 (AUTHOR), Stepanov, A. G.3,4 (AUTHOR) |
| Source: | Petroleum Chemistry. May2019, Vol. 59 Issue 3, p275-296. 22p. |
| Subjects: | Nanoporous materials, Zeolites, Deuterium, Diffusion, Chemical systems, Nuclear magnetic resonance |
| Abstract: | Our present knowledge of the translational mobility of guest molecules in zeolites would be unthinkable without the involvement of the giant zeolite crystallites synthesized by Prof. Sergey Petrovich Zhdanov in Leningrad. The present contribution narrates how the availability of his "tailor-made" zeolite samples, jointly with the potentials of the pulsed field gradient nuclear magnetic resonance (PFG NMR) allowed, for the very first time, the direct measurement of molecular displacements within the interior of zeolite crystals and, thus, of zeolitic guest diffusion. Starting with an introduction into the potentials of PFG NMR diffusion measurements quite in general, the paper reports about the hidden pitfalls, which by recording molecular uptake and release in conventional diffusion measurements may lead to substantial inconsistencies, and about their elucidation via PFG NMR owing to Zhdanov's giant zeolites. A survey of the main achievements of diffusion studies by PFG NMR with Zhdanov's zeolites is given. It ranges from knowledge about the different patterns of the concentration dependencies of diffusion via diffusion in multicomponent systems including chemical reactions up to the exploration of hierarchies of diffusion resistances. The review is concluded by highlights of most recent diffusion studies including "nanoscopic" diffusion measurement via deuterium NMR and the message of purposefully designed conversion studies on mass transfer. [ABSTRACT FROM AUTHOR] |
| Copyright of Petroleum Chemistry is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
|
Full text is not displayed to guests.
Login for full access.
|
|
| FullText | Links: – Type: pdflink Text: Availability: 1 |
|---|---|
| Header | DbId: egs DbLabel: Engineering Source An: 136502969 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
| IllustrationInfo | |
| Items | – Name: Title Label: Title Group: Ti Data: Diffusion in Nanoporous Materials: from Paradigm Shift by Zhdanov Zeolites Till Recent Insight. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Kärger%2C+J%2E%22">Kärger, J.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> kaerger@physik.uni-leipzig.de</i><br /><searchLink fieldCode="AR" term="%22Freude%2C+D%2E%22">Freude, D.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ivanova%2C+I%2E+I%2E%22">Ivanova, I. I.</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Stepanov%2C+A%2E+G%2E%22">Stepanov, A. G.</searchLink><relatesTo>3,4</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Petroleum+Chemistry%22">Petroleum Chemistry</searchLink>. May2019, Vol. 59 Issue 3, p275-296. 22p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Nanoporous+materials%22">Nanoporous materials</searchLink><br /><searchLink fieldCode="DE" term="%22Zeolites%22">Zeolites</searchLink><br /><searchLink fieldCode="DE" term="%22Deuterium%22">Deuterium</searchLink><br /><searchLink fieldCode="DE" term="%22Diffusion%22">Diffusion</searchLink><br /><searchLink fieldCode="DE" term="%22Chemical+systems%22">Chemical systems</searchLink><br /><searchLink fieldCode="DE" term="%22Nuclear+magnetic+resonance%22">Nuclear magnetic resonance</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Our present knowledge of the translational mobility of guest molecules in zeolites would be unthinkable without the involvement of the giant zeolite crystallites synthesized by Prof. Sergey Petrovich Zhdanov in Leningrad. The present contribution narrates how the availability of his "tailor-made" zeolite samples, jointly with the potentials of the pulsed field gradient nuclear magnetic resonance (PFG NMR) allowed, for the very first time, the direct measurement of molecular displacements within the interior of zeolite crystals and, thus, of zeolitic guest diffusion. Starting with an introduction into the potentials of PFG NMR diffusion measurements quite in general, the paper reports about the hidden pitfalls, which by recording molecular uptake and release in conventional diffusion measurements may lead to substantial inconsistencies, and about their elucidation via PFG NMR owing to Zhdanov's giant zeolites. A survey of the main achievements of diffusion studies by PFG NMR with Zhdanov's zeolites is given. It ranges from knowledge about the different patterns of the concentration dependencies of diffusion via diffusion in multicomponent systems including chemical reactions up to the exploration of hierarchies of diffusion resistances. The review is concluded by highlights of most recent diffusion studies including "nanoscopic" diffusion measurement via deuterium NMR and the message of purposefully designed conversion studies on mass transfer. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Petroleum Chemistry is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=136502969 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1134/S0965544119030071 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 22 StartPage: 275 Subjects: – SubjectFull: Nanoporous materials Type: general – SubjectFull: Zeolites Type: general – SubjectFull: Deuterium Type: general – SubjectFull: Diffusion Type: general – SubjectFull: Chemical systems Type: general – SubjectFull: Nuclear magnetic resonance Type: general Titles: – TitleFull: Diffusion in Nanoporous Materials: from Paradigm Shift by Zhdanov Zeolites Till Recent Insight. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Kärger, J. – PersonEntity: Name: NameFull: Freude, D. – PersonEntity: Name: NameFull: Ivanova, I. I. – PersonEntity: Name: NameFull: Stepanov, A. G. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 05 Text: May2019 Type: published Y: 2019 Identifiers: – Type: issn-print Value: 09655441 Numbering: – Type: volume Value: 59 – Type: issue Value: 3 Titles: – TitleFull: Petroleum Chemistry Type: main |
| ResultId | 1 |
