Solid-State Conversion Chemistry of Multicomponent Nanocrystals Cast in a Hollow Silica Nanosphere: Morphology-Controlled Syntheses of Hybrid Nanocrystals
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- Title
- Solid-State Conversion Chemistry of Multicomponent Nanocrystals Cast in a Hollow Silica Nanosphere: Morphology-Controlled Syntheses of Hybrid Nanocrystals
- Authors
- Kim, YJ; Choi, JK; Lee, DG; Baek, K; Oh, SH; Lee, IS
- Date Issued
- 2015-11
- Publisher
- AMER CHEMICAL SOC
- Abstract
- During thermal transformation of multicomponent nanocrystals in a silica nanosphere, FeAuPd alloy nanocrystals migrate outward and thereby leave a cavity in the silica matrix. Oxidation then converts these nanocrystals back into phase-segregated hybrid nanocrystals, AuPd@Fe3O4, with various morphologies. The FeAuPd-to-AuPd@Fe3O4 transformation was cast by the in situ generated hollow silica mold. Therefore, the morphological parameters of the transformed AuPd@Fe3O4 are defined by the degree of migration of the FeAuPd in the hollow silica nanoshell. This hollow silica-cast nanocrystal conversion was studied to develop a solid state protocol that can be used to produce a range of hybrid nanocrystals and that allows for systematic and sophisticated control of the resulting morphologies.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/35532
- DOI
- 10.1021/ACSNANO.5B05860
- ISSN
- 1936-0851
- Article Type
- Article
- Citation
- ACS NANO, vol. 9, no. 11, page. 10719 - 10728, 2015-11
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- There are no files associated with this item.
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