Please use this identifier to cite or link to this item:
https://doi.org/10.1002/chem.201301753
DC Field | Value | |
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dc.title | Growth of Au@Ag core-shell pentatwinned nanorods: Tuning the end facets | |
dc.contributor.author | Zhang, W. | |
dc.contributor.author | Goh, H.Y.J. | |
dc.contributor.author | Firdoz, S. | |
dc.contributor.author | Lu, X. | |
dc.date.accessioned | 2014-06-17T07:42:05Z | |
dc.date.available | 2014-06-17T07:42:05Z | |
dc.date.issued | 2013-09-16 | |
dc.identifier.citation | Zhang, W., Goh, H.Y.J., Firdoz, S., Lu, X. (2013-09-16). Growth of Au@Ag core-shell pentatwinned nanorods: Tuning the end facets. Chemistry - A European Journal 19 (38) : 12732-12738. ScholarBank@NUS Repository. https://doi.org/10.1002/chem.201301753 | |
dc.identifier.issn | 09476539 | |
dc.identifier.uri | http://scholarbank.nus.edu.sg/handle/10635/64001 | |
dc.description.abstract | Au@Ag core-shell nanorods with tunable end facets are obtained by coating Au bipyramids (BPs) with Ag. The resultant nanorods exhibit a pentatwinned crystal structure with tips terminated with either {110} or {111} facets. The control over the end facets is achieved by varying the capping agents and tuning the reduction rate of Ag. Specifically, when Ag is reduced slowly, Au@Ag nanorods with flat {110} end facets are formed with cetyltrimethylammonium bromide (CTAB) as the capping agent. If CTAB is replaced with cetyltrimethylammonium chloride (CTAC), Au@Ag nanorods with tips terminated with {111} facets are obtained. However, at a high Ag reduction rate, dumbbell-shaped Au@Ag nanorods are formed, with either CTAB or CTAC as the capping agent. The morphological evolution of the nanorods in each case is closely followed and a growth mechanism is proposed. In tip-top shape: Au@Ag core-shell nanorods with tunable end facets are obtained by coating Au bipyramids (BPs) with Ag. The resultant nanorods exhibit a pentatwinned crystal structure with tips terminated with either {110} or {111} end facets. Control over the end facets is achieved by varying the capping agents and tuning the reduction rate of Ag (see figure). Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. | |
dc.description.uri | http://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1002/chem.201301753 | |
dc.source | Scopus | |
dc.subject | bimetallic nanorods | |
dc.subject | core-shell | |
dc.subject | end facets | |
dc.subject | gold | |
dc.subject | seed-mediated growth | |
dc.subject | silver | |
dc.type | Article | |
dc.contributor.department | CHEMICAL & BIOMOLECULAR ENGINEERING | |
dc.description.doi | 10.1002/chem.201301753 | |
dc.description.sourcetitle | Chemistry - A European Journal | |
dc.description.volume | 19 | |
dc.description.issue | 38 | |
dc.description.page | 12732-12738 | |
dc.description.coden | CEUJE | |
dc.identifier.isiut | 000324316300026 | |
Appears in Collections: | Staff Publications |
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