Novel magnetic separable nano-carriers for chemical catalysis and bio-catalysis
Separation of homogeneous catalyst species from product mixture in liquid phase has been a major problem in industry. Thus, the facilitated separation of nanosize magnetic body carrying catalytically active species is of a tremendous interest. The major advantage is that the magnetic nano-catalysts...
| Main Authors: | , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
2005
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| _version_ | 1826261462844178432 |
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| author | Tsang, S Tam, K Gao, X Yu, C Yeung, C Yu, K |
| author_facet | Tsang, S Tam, K Gao, X Yu, C Yeung, C Yu, K |
| author_sort | Tsang, S |
| collection | OXFORD |
| description | Separation of homogeneous catalyst species from product mixture in liquid phase has been a major problem in industry. Thus, the facilitated separation of nanosize magnetic body carrying catalytically active species is of a tremendous interest. The major advantage is that the magnetic nano-catalysts display an excellent mass transfer coefficient (high surface area to volume ratio) comparable to soluble species but can still be easily separated from liquid using magnetic interaction with an external applied inhomogeneous magnetic field. However, their stability in reactive environment remains to be the key issue. Here, we show that S-capping species can isolate and protect the nano-size FePt magnetic core from environment. The functionalized surfaces can also offer anchoring sites for immobilization of catalytically active species (nano-metal particulates, homogeneous catalysts and enzymes). With such small magnetic catalyst bodies, the merits of homogeneous and heterogeneous catalysis can then be combined. |
| first_indexed | 2024-03-06T19:21:50Z |
| format | Journal article |
| id | oxford-uuid:1a5d25f3-0e5d-4393-a552-21bfe4114f8d |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T19:21:50Z |
| publishDate | 2005 |
| record_format | dspace |
| spelling | oxford-uuid:1a5d25f3-0e5d-4393-a552-21bfe4114f8d2022-03-26T10:54:21ZNovel magnetic separable nano-carriers for chemical catalysis and bio-catalysisJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:1a5d25f3-0e5d-4393-a552-21bfe4114f8dEnglishSymplectic Elements at Oxford2005Tsang, STam, KGao, XYu, CYeung, CYu, KSeparation of homogeneous catalyst species from product mixture in liquid phase has been a major problem in industry. Thus, the facilitated separation of nanosize magnetic body carrying catalytically active species is of a tremendous interest. The major advantage is that the magnetic nano-catalysts display an excellent mass transfer coefficient (high surface area to volume ratio) comparable to soluble species but can still be easily separated from liquid using magnetic interaction with an external applied inhomogeneous magnetic field. However, their stability in reactive environment remains to be the key issue. Here, we show that S-capping species can isolate and protect the nano-size FePt magnetic core from environment. The functionalized surfaces can also offer anchoring sites for immobilization of catalytically active species (nano-metal particulates, homogeneous catalysts and enzymes). With such small magnetic catalyst bodies, the merits of homogeneous and heterogeneous catalysis can then be combined. |
| spellingShingle | Tsang, S Tam, K Gao, X Yu, C Yeung, C Yu, K Novel magnetic separable nano-carriers for chemical catalysis and bio-catalysis |
| title | Novel magnetic separable nano-carriers for chemical catalysis and bio-catalysis |
| title_full | Novel magnetic separable nano-carriers for chemical catalysis and bio-catalysis |
| title_fullStr | Novel magnetic separable nano-carriers for chemical catalysis and bio-catalysis |
| title_full_unstemmed | Novel magnetic separable nano-carriers for chemical catalysis and bio-catalysis |
| title_short | Novel magnetic separable nano-carriers for chemical catalysis and bio-catalysis |
| title_sort | novel magnetic separable nano carriers for chemical catalysis and bio catalysis |
| work_keys_str_mv | AT tsangs novelmagneticseparablenanocarriersforchemicalcatalysisandbiocatalysis AT tamk novelmagneticseparablenanocarriersforchemicalcatalysisandbiocatalysis AT gaox novelmagneticseparablenanocarriersforchemicalcatalysisandbiocatalysis AT yuc novelmagneticseparablenanocarriersforchemicalcatalysisandbiocatalysis AT yeungc novelmagneticseparablenanocarriersforchemicalcatalysisandbiocatalysis AT yuk novelmagneticseparablenanocarriersforchemicalcatalysisandbiocatalysis |