Silica coated noble metal nanoparticle hydrosols as supported catalyst precursors
Synthesis of well-defined nanoparticles has been intensively pursued not only for their fundamental scientific interest, but also for many technological applications. One important development of the nanomaterial is in the area of chemical catalysis. We have now developed a new aqueous-based method...
| Asıl Yazarlar: | , , |
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| Materyal Türü: | Journal article |
| Dil: | English |
| Baskı/Yayın Bilgisi: |
2006
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| _version_ | 1826268916374044672 |
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| author | Kong, T Yu, K Tsang, S |
| author_facet | Kong, T Yu, K Tsang, S |
| author_sort | Kong, T |
| collection | OXFORD |
| description | Synthesis of well-defined nanoparticles has been intensively pursued not only for their fundamental scientific interest, but also for many technological applications. One important development of the nanomaterial is in the area of chemical catalysis. We have now developed a new aqueous-based method for the synthesis of silica encapsulated noble metal nanoparticles in controlled dimensions. Thus, colloid stable silica encapsulated ∼5 nm platinum nanoparticle is synthesized by a multi-step method. The thickness of the silica coating could be controlled using a different amount of silica precursor. These particles supported on a high surface area alumina are also demonstrated to display a superior hydrogenation activity and stability against metal sintering after thermal activation. Copyright © 2006 American Scientific Publishers. All rights reserved. |
| first_indexed | 2024-03-06T21:16:53Z |
| format | Journal article |
| id | oxford-uuid:4013a439-658d-4800-94eb-06827ec6a597 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T21:16:53Z |
| publishDate | 2006 |
| record_format | dspace |
| spelling | oxford-uuid:4013a439-658d-4800-94eb-06827ec6a5972022-03-26T14:35:51ZSilica coated noble metal nanoparticle hydrosols as supported catalyst precursorsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:4013a439-658d-4800-94eb-06827ec6a597EnglishSymplectic Elements at Oxford2006Kong, TYu, KTsang, SSynthesis of well-defined nanoparticles has been intensively pursued not only for their fundamental scientific interest, but also for many technological applications. One important development of the nanomaterial is in the area of chemical catalysis. We have now developed a new aqueous-based method for the synthesis of silica encapsulated noble metal nanoparticles in controlled dimensions. Thus, colloid stable silica encapsulated ∼5 nm platinum nanoparticle is synthesized by a multi-step method. The thickness of the silica coating could be controlled using a different amount of silica precursor. These particles supported on a high surface area alumina are also demonstrated to display a superior hydrogenation activity and stability against metal sintering after thermal activation. Copyright © 2006 American Scientific Publishers. All rights reserved. |
| spellingShingle | Kong, T Yu, K Tsang, S Silica coated noble metal nanoparticle hydrosols as supported catalyst precursors |
| title | Silica coated noble metal nanoparticle hydrosols as supported catalyst precursors |
| title_full | Silica coated noble metal nanoparticle hydrosols as supported catalyst precursors |
| title_fullStr | Silica coated noble metal nanoparticle hydrosols as supported catalyst precursors |
| title_full_unstemmed | Silica coated noble metal nanoparticle hydrosols as supported catalyst precursors |
| title_short | Silica coated noble metal nanoparticle hydrosols as supported catalyst precursors |
| title_sort | silica coated noble metal nanoparticle hydrosols as supported catalyst precursors |
| work_keys_str_mv | AT kongt silicacoatednoblemetalnanoparticlehydrosolsassupportedcatalystprecursors AT yuk silicacoatednoblemetalnanoparticlehydrosolsassupportedcatalystprecursors AT tsangs silicacoatednoblemetalnanoparticlehydrosolsassupportedcatalystprecursors |