Synthesis of well-dispersed nanoparticles within porous solid structures using surface-tethered surfactants in supercritical CO2
We have developed a new method for the synthesis of Pd nanoparticles with controllable sizes within a silica matrix using solid-supported surfactants in supercritical CO2. XRD, HRTEM and CO chemisorption data show that unformly sized Pd nanoparticles are evenly distributed within the porous silica a...
| Main Authors: | , , , , |
|---|---|
| Format: | Journal article |
| Language: | English |
| Published: |
2003
|
| _version_ | 1797087226170966016 |
|---|---|
| author | Yu, K Steele, A Zhu, J Fu, Q Tsang, S |
| author_facet | Yu, K Steele, A Zhu, J Fu, Q Tsang, S |
| author_sort | Yu, K |
| collection | OXFORD |
| description | We have developed a new method for the synthesis of Pd nanoparticles with controllable sizes within a silica matrix using solid-supported surfactants in supercritical CO2. XRD, HRTEM and CO chemisorption data show that unformly sized Pd nanoparticles are evenly distributed within the porous silica and are chemically tethered by surfactant molecules [poly(oxyethylene stearyl ether) and fluorinated poly(oxyethylene)]. It is postulated that tiny solid-supported surfactant assemblies act as nano-reactors for the template synthesis of nanoparticles or clusters from the soluble precursors therein. |
| first_indexed | 2024-03-07T02:32:47Z |
| format | Journal article |
| id | oxford-uuid:a7d0ecab-6f57-461e-900f-ede76fe0801d |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T02:32:47Z |
| publishDate | 2003 |
| record_format | dspace |
| spelling | oxford-uuid:a7d0ecab-6f57-461e-900f-ede76fe0801d2022-03-27T02:57:02ZSynthesis of well-dispersed nanoparticles within porous solid structures using surface-tethered surfactants in supercritical CO2 Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:a7d0ecab-6f57-461e-900f-ede76fe0801dEnglishSymplectic Elements at Oxford2003Yu, KSteele, AZhu, JFu, QTsang, SWe have developed a new method for the synthesis of Pd nanoparticles with controllable sizes within a silica matrix using solid-supported surfactants in supercritical CO2. XRD, HRTEM and CO chemisorption data show that unformly sized Pd nanoparticles are evenly distributed within the porous silica and are chemically tethered by surfactant molecules [poly(oxyethylene stearyl ether) and fluorinated poly(oxyethylene)]. It is postulated that tiny solid-supported surfactant assemblies act as nano-reactors for the template synthesis of nanoparticles or clusters from the soluble precursors therein. |
| spellingShingle | Yu, K Steele, A Zhu, J Fu, Q Tsang, S Synthesis of well-dispersed nanoparticles within porous solid structures using surface-tethered surfactants in supercritical CO2 |
| title | Synthesis of well-dispersed nanoparticles within porous solid structures using surface-tethered surfactants in supercritical CO2
|
| title_full | Synthesis of well-dispersed nanoparticles within porous solid structures using surface-tethered surfactants in supercritical CO2
|
| title_fullStr | Synthesis of well-dispersed nanoparticles within porous solid structures using surface-tethered surfactants in supercritical CO2
|
| title_full_unstemmed | Synthesis of well-dispersed nanoparticles within porous solid structures using surface-tethered surfactants in supercritical CO2
|
| title_short | Synthesis of well-dispersed nanoparticles within porous solid structures using surface-tethered surfactants in supercritical CO2
|
| title_sort | synthesis of well dispersed nanoparticles within porous solid structures using surface tethered surfactants in supercritical co2 |
| work_keys_str_mv | AT yuk synthesisofwelldispersednanoparticleswithinporoussolidstructuresusingsurfacetetheredsurfactantsinsupercriticalco2 AT steelea synthesisofwelldispersednanoparticleswithinporoussolidstructuresusingsurfacetetheredsurfactantsinsupercriticalco2 AT zhuj synthesisofwelldispersednanoparticleswithinporoussolidstructuresusingsurfacetetheredsurfactantsinsupercriticalco2 AT fuq synthesisofwelldispersednanoparticleswithinporoussolidstructuresusingsurfacetetheredsurfactantsinsupercriticalco2 AT tsangs synthesisofwelldispersednanoparticleswithinporoussolidstructuresusingsurfacetetheredsurfactantsinsupercriticalco2 |