Probing the location and distribution of paramagnetic centers in alkali metal-loaded zeolites through (7)Li MAS NMR.
The nature and surroundings of lithium cations in lithium-exchanged X and A zeolites following loading with the alkali metals Na, K, Rb, and Cs have been studied through (7)Li solid-state NMR spectroscopy. It is demonstrated that the lithium in these zeolites is stable with respect to reduction by t...
| Main Authors: | , , , , , |
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| Format: | Journal article |
| Language: | English |
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2004
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| _version_ | 1797083673162416128 |
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| author | Terskikh, V Ratcliffe, C Ripmeester, J Reinhold, C Anderson, P Edwards, P |
| author_facet | Terskikh, V Ratcliffe, C Ripmeester, J Reinhold, C Anderson, P Edwards, P |
| author_sort | Terskikh, V |
| collection | OXFORD |
| description | The nature and surroundings of lithium cations in lithium-exchanged X and A zeolites following loading with the alkali metals Na, K, Rb, and Cs have been studied through (7)Li solid-state NMR spectroscopy. It is demonstrated that the lithium in these zeolites is stable with respect to reduction by the other alkali metals. Even though the lithium cations are not directly involved in chemical interactions with the excess electrons introduced in the doping process, the corresponding (7)Li NMR spectra are extremely sensitive to paramagnetic species that are located inside the zeolite cavities. This sensitivity makes (7)Li NMR a useful probe to study the formation, distribution, and transformation of such species. |
| first_indexed | 2024-03-07T01:44:46Z |
| format | Journal article |
| id | oxford-uuid:98092bee-c935-40ea-92f1-e3671e4f67c8 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T01:44:46Z |
| publishDate | 2004 |
| record_format | dspace |
| spelling | oxford-uuid:98092bee-c935-40ea-92f1-e3671e4f67c82022-03-27T00:04:11ZProbing the location and distribution of paramagnetic centers in alkali metal-loaded zeolites through (7)Li MAS NMR.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:98092bee-c935-40ea-92f1-e3671e4f67c8EnglishSymplectic Elements at Oxford2004Terskikh, VRatcliffe, CRipmeester, JReinhold, CAnderson, PEdwards, PThe nature and surroundings of lithium cations in lithium-exchanged X and A zeolites following loading with the alkali metals Na, K, Rb, and Cs have been studied through (7)Li solid-state NMR spectroscopy. It is demonstrated that the lithium in these zeolites is stable with respect to reduction by the other alkali metals. Even though the lithium cations are not directly involved in chemical interactions with the excess electrons introduced in the doping process, the corresponding (7)Li NMR spectra are extremely sensitive to paramagnetic species that are located inside the zeolite cavities. This sensitivity makes (7)Li NMR a useful probe to study the formation, distribution, and transformation of such species. |
| spellingShingle | Terskikh, V Ratcliffe, C Ripmeester, J Reinhold, C Anderson, P Edwards, P Probing the location and distribution of paramagnetic centers in alkali metal-loaded zeolites through (7)Li MAS NMR. |
| title | Probing the location and distribution of paramagnetic centers in alkali metal-loaded zeolites through (7)Li MAS NMR. |
| title_full | Probing the location and distribution of paramagnetic centers in alkali metal-loaded zeolites through (7)Li MAS NMR. |
| title_fullStr | Probing the location and distribution of paramagnetic centers in alkali metal-loaded zeolites through (7)Li MAS NMR. |
| title_full_unstemmed | Probing the location and distribution of paramagnetic centers in alkali metal-loaded zeolites through (7)Li MAS NMR. |
| title_short | Probing the location and distribution of paramagnetic centers in alkali metal-loaded zeolites through (7)Li MAS NMR. |
| title_sort | probing the location and distribution of paramagnetic centers in alkali metal loaded zeolites through 7 li mas nmr |
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