期刊
ACS NANO
卷 4, 期 10, 页码 6196-6202出版社
AMER CHEMICAL SOC
DOI: 10.1021/nn101803m
关键词
Au nanostructures; Au nanorods; Au nanoparticles; photochemical synthesis; shape control
类别
资金
- AcRF Tier 1 [RG 20/07]
- MOE, CRP [NRF-CRP2-2007-01]
- NRF, A*STAR [092 101 0064]
- Centre for Biomimetic Sensor Science at NTU in Singapore
- SUG [LKY 4/08]
- NTU
- CRP [NRF-CRP5-2009-04]
- NRF
- Centre for Artificial Photosynthesis System (CAPS) at NTU in Singapore
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.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据