Time‐of‐Flight Secondary Ion Mass Spectrometry Revealing the Organocatalyst Distribution in Functionalized Silica Monoliths.
| Title: | Time‐of‐Flight Secondary Ion Mass Spectrometry Revealing the Organocatalyst Distribution in Functionalized Silica Monoliths. |
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| Authors: | Brand, Raoul D.1 (AUTHOR), Schulze, Julia S.1 (AUTHOR), Henss, Anja1,2 (AUTHOR), Smarsly, Bernd M.1,2 (AUTHOR) Bernd.Smarsly@phys.chemie.uni-giessen.de |
| Source: | ChemistryOpen. Nov2024, Vol. 13 Issue 11, p1-6. 6p. |
| Subject Terms: | *POROUS silica, *MONOLITHIC reactors, *HETEROGENEOUS catalysis, *MESOPOROUS materials, *ELEMENTAL analysis, *SECONDARY ion mass spectrometry |
| Abstract: | Hierarchically porous monolithic silica shows promise as a carrier material for immobilized organocatalysts. Conventional analysis usually includes physisorption, infrared spectroscopy and elemental analysis, among others, to elucidate the pore space and degree of functionalization of the material. However, these methods do not yield information about the spatial distribution of the organic species inside the monolithic reactor. In this work, time‐of‐flight secondary ion mass spectrometry has been applied to characterize the surface of organically functionalized silica monoliths. Cross sections of a silica monolith functionalized with 4‐dimethylaminopyridine were analyzed and the results were compared with physisorption and elemental analysis experiments of the same material. This way, insight into the radial distribution of the catalyst could be achieved, which might assist in interpreting the performance of such reactors in heterogeneous flow catalysis. [ABSTRACT FROM AUTHOR] |
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| Items | – Name: Title Label: Title Group: Ti Data: Time‐of‐Flight Secondary Ion Mass Spectrometry Revealing the Organocatalyst Distribution in Functionalized Silica Monoliths. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Brand%2C+Raoul+D%2E%22">Brand, Raoul D.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Schulze%2C+Julia+S%2E%22">Schulze, Julia S.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Henss%2C+Anja%22">Henss, Anja</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Smarsly%2C+Bernd+M%2E%22">Smarsly, Bernd M.</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> Bernd.Smarsly@phys.chemie.uni-giessen.de</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22ChemistryOpen%22">ChemistryOpen</searchLink>. Nov2024, Vol. 13 Issue 11, p1-6. 6p. – Name: Subject Label: Subject Terms Group: Su Data: *<searchLink fieldCode="DE" term="%22POROUS+silica%22">POROUS silica</searchLink><br />*<searchLink fieldCode="DE" term="%22MONOLITHIC+reactors%22">MONOLITHIC reactors</searchLink><br />*<searchLink fieldCode="DE" term="%22HETEROGENEOUS+catalysis%22">HETEROGENEOUS catalysis</searchLink><br />*<searchLink fieldCode="DE" term="%22MESOPOROUS+materials%22">MESOPOROUS materials</searchLink><br />*<searchLink fieldCode="DE" term="%22ELEMENTAL+analysis%22">ELEMENTAL analysis</searchLink><br />*<searchLink fieldCode="DE" term="%22SECONDARY+ion+mass+spectrometry%22">SECONDARY ion mass spectrometry</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Hierarchically porous monolithic silica shows promise as a carrier material for immobilized organocatalysts. Conventional analysis usually includes physisorption, infrared spectroscopy and elemental analysis, among others, to elucidate the pore space and degree of functionalization of the material. However, these methods do not yield information about the spatial distribution of the organic species inside the monolithic reactor. In this work, time‐of‐flight secondary ion mass spectrometry has been applied to characterize the surface of organically functionalized silica monoliths. Cross sections of a silica monolith functionalized with 4‐dimethylaminopyridine were analyzed and the results were compared with physisorption and elemental analysis experiments of the same material. This way, insight into the radial distribution of the catalyst could be achieved, which might assist in interpreting the performance of such reactors in heterogeneous flow catalysis. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of ChemistryOpen is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. 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.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1002/open.202400199 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 6 StartPage: 1 Subjects: – SubjectFull: POROUS silica Type: general – SubjectFull: MONOLITHIC reactors Type: general – SubjectFull: HETEROGENEOUS catalysis Type: general – SubjectFull: MESOPOROUS materials Type: general – SubjectFull: ELEMENTAL analysis Type: general – SubjectFull: SECONDARY ion mass spectrometry Type: general Titles: – TitleFull: Time‐of‐Flight Secondary Ion Mass Spectrometry Revealing the Organocatalyst Distribution in Functionalized Silica Monoliths. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Brand, Raoul D. – PersonEntity: Name: NameFull: Schulze, Julia S. – PersonEntity: Name: NameFull: Henss, Anja – PersonEntity: Name: NameFull: Smarsly, Bernd M. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 11 Text: Nov2024 Type: published Y: 2024 Identifiers: – Type: issn-print Value: 21911363 Numbering: – Type: volume Value: 13 – Type: issue Value: 11 Titles: – TitleFull: ChemistryOpen Type: main |
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