Synthesis and characterization of thiol-capped FePt nanomagnetic porous particles
The synthesis and characterization of a thiol-capped FeOt magnetic alloy encapsulated within a thin porous silica overlayer with controlled dimensions using (3-mercaptopropyl)-trimethoxysilane (MPTS) as a precursor, is discussed. Elemental mapping of isolated nanoparticles by energy dispersive X-ray...
| Main Authors: | , , , |
|---|---|
| Format: | Journal article |
| Jezik: | English |
| Izdano: |
2005
|
| _version_ | 1826301107864862720 |
|---|---|
| author | Gao, X Tam, K Yu, K Tsang, S |
| author_facet | Gao, X Tam, K Yu, K Tsang, S |
| author_sort | Gao, X |
| collection | OXFORD |
| description | The synthesis and characterization of a thiol-capped FeOt magnetic alloy encapsulated within a thin porous silica overlayer with controlled dimensions using (3-mercaptopropyl)-trimethoxysilane (MPTS) as a precursor, is discussed. Elemental mapping of isolated nanoparticles by energy dispersive X-ray (EDX) analysis was carried out, in which isolated particles were randomly selected from the sample. A simple experiment of mixing the thiol-treated FePt nanoparticles with hydrazine indicated their total inactivity towards hydrogen formation whereas a small degree of exposed metal surface can liberate hydrogen from this reagent at room temperature. This simple synthetic methodology incorporates both magnetic and chemical storage functions into a single nanometer porous particle, which could extend the application of strong but reactive magnetic alloys such as FePt, FePd, FeCoPt, and FePt/Ag for magnetic separation. |
| first_indexed | 2024-03-07T05:27:23Z |
| format | Journal article |
| id | oxford-uuid:e109a79e-f50b-4d57-94a8-befc20a35ebb |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T05:27:23Z |
| publishDate | 2005 |
| record_format | dspace |
| spelling | oxford-uuid:e109a79e-f50b-4d57-94a8-befc20a35ebb2022-03-27T09:51:28ZSynthesis and characterization of thiol-capped FePt nanomagnetic porous particlesJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:e109a79e-f50b-4d57-94a8-befc20a35ebbEnglishSymplectic Elements at Oxford2005Gao, XTam, KYu, KTsang, SThe synthesis and characterization of a thiol-capped FeOt magnetic alloy encapsulated within a thin porous silica overlayer with controlled dimensions using (3-mercaptopropyl)-trimethoxysilane (MPTS) as a precursor, is discussed. Elemental mapping of isolated nanoparticles by energy dispersive X-ray (EDX) analysis was carried out, in which isolated particles were randomly selected from the sample. A simple experiment of mixing the thiol-treated FePt nanoparticles with hydrazine indicated their total inactivity towards hydrogen formation whereas a small degree of exposed metal surface can liberate hydrogen from this reagent at room temperature. This simple synthetic methodology incorporates both magnetic and chemical storage functions into a single nanometer porous particle, which could extend the application of strong but reactive magnetic alloys such as FePt, FePd, FeCoPt, and FePt/Ag for magnetic separation. |
| spellingShingle | Gao, X Tam, K Yu, K Tsang, S Synthesis and characterization of thiol-capped FePt nanomagnetic porous particles |
| title | Synthesis and characterization of thiol-capped FePt nanomagnetic porous particles |
| title_full | Synthesis and characterization of thiol-capped FePt nanomagnetic porous particles |
| title_fullStr | Synthesis and characterization of thiol-capped FePt nanomagnetic porous particles |
| title_full_unstemmed | Synthesis and characterization of thiol-capped FePt nanomagnetic porous particles |
| title_short | Synthesis and characterization of thiol-capped FePt nanomagnetic porous particles |
| title_sort | synthesis and characterization of thiol capped fept nanomagnetic porous particles |
| work_keys_str_mv | AT gaox synthesisandcharacterizationofthiolcappedfeptnanomagneticporousparticles AT tamk synthesisandcharacterizationofthiolcappedfeptnanomagneticporousparticles AT yuk synthesisandcharacterizationofthiolcappedfeptnanomagneticporousparticles AT tsangs synthesisandcharacterizationofthiolcappedfeptnanomagneticporousparticles |