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Photochemically controlled synthesis of anisotropic Au nanostructures : platelet-like Au nanorods and six-star Au nanoparticles

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Photochemically controlled synthesis of anisotropic Au nanostructures : platelet-like Au nanorods and six-star Au nanoparticles

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dc.contributor.author Huang, Xiao
dc.contributor.author Qi, Xiaoying
dc.contributor.author Huang, Yizhong
dc.contributor.author Li, Shaozhou
dc.contributor.author Xue, Can
dc.contributor.author Gan, Chee Lip
dc.contributor.author Boey, Freddy Yin Chiang
dc.contributor.author Zhang, Hua
dc.date.accessioned 2012-09-19T08:35:06Z
dc.date.available 2012-09-19T08:35:06Z
dc.date.copyright 2010
dc.date.issued 2012-09-19
dc.identifier.citation Huang, X., Qi, X., Huang, Y., Li, S., Xue, C., Gan, C. L., et al. (2010). Photochemically controlled synthesis of anisotropic Au nanostructures : platelet-like Au nanorods and six-star Au nanoparticles. ACS Nano, 4(10), 6196-6202.
dc.identifier.issn 1936-0851
dc.identifier.uri http://hdl.handle.net/10220/8579
dc.description.abstract We report the shape-controlled synthesis of anisotropic Au nanostructures through TiO2-assisted photochemical reduction of HAuCl4. By using this method, we have successfully synthesized the platelet-like Au nanorods and six-star Au nanoparticles. Importantly, the platelet Au nanorod exhibits the unique asymmetric five-twinned structure. The colloidal TiO2 sols were used as both the photocatalyst to initiate the reaction and the stabilizing agent for the produced Au nanostructures. Significantly, in this photochemical process, the tunable irradiation intensity allows us to kinetically control the crystal evolution at various growth stages, leading to the shape difference of ultimate gold nanostructures. Our synthetic method shows a great potential as an alternative or supplement to the other wet chemical approaches for the shape-control of metallic nanostructures.
dc.language.iso en
dc.relation.ispartofseries ACS Nano
dc.rights © 2010 American Chemical Society.
dc.subject DRNTU::Engineering::Materials.
dc.title Photochemically controlled synthesis of anisotropic Au nanostructures : platelet-like Au nanorods and six-star Au nanoparticles
dc.type Journal Article
dc.contributor.school School of Materials Science and Engineering
dc.identifier.doi http://dx.doi.org/10.1021/nn101803m

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