Seed-Mediated Synthesis of Gold Nanorods at Low Concentrations of CTAB
نویسندگان
چکیده
منابع مشابه
Direct coating of mesoporous titania on CTAB-capped gold nanorods.
We demonstrate a CTAB-templated approach towards direct coating of mesoporous titania on gold nanorods in aqueous solutions. The formation of the mesoporous shell is found to be closely correlated with CTAB concentration and the amount of the titania precursor. This approach can be readily extended to form mesoporous titania shells on other CTAB-capped nanoparticles.
متن کاملGrowth and form of gold nanorods prepared by seed-mediated, surfactant-directed synthesis
Gold nanorods were prepared via a seed-mediated sequential growth process involving the use of citratestabilised seed crystals and their subsequent growth in a series of reaction solutions containing [AuCl4] , ascorbic acid and the cationic surfactant cetyltrimethylammonuim bromide (CTAB). Electron diffraction analysis and HRTEM images of mature nanorods showed superpositions of two specific pa...
متن کاملPhotochemical synthesis of gold nanorods.
Gold nanorods have been synthesized by photochemically reducing gold ions within a micellar solution. The aspect ratio of the rods can be controlled with the addition of silver ions. This process reported here is highly promising for producing uniform nanorods, and more importantly it will be useful in resolving the growth mechanism of anisotropic metal nanoparticles due to its simplicity and t...
متن کاملSeed-less amino-sugar mediated synthesis of gold nanostars.
By using aminosugars, a series of multipodal gold nanostructures has been obtained via a one-pot chemical reduction method in aqueous solution and at room temperature. The size and shape of these NPs were controlled either by adjusting the amount of reducing agent or by quenching the reaction at a given time.
متن کاملColloidal dispersion of gold nanorods: Historical background, optical properties, seed-mediated synthesis, shape separation and self-assembly
The color of colloidal dispersions of gold particles in a fluid, typically water, varies from red to blue, depending upon the shape and size of particles. The color and optical properties of gold nanoparticles originate from localized surface plasmons, and are sensitive to their local dielectric environment. Unlike nanospheres, the optical properties, hydrodynamic behavior as well as phase beha...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: ACS Omega
سال: 2021
ISSN: 2470-1343,2470-1343
DOI: 10.1021/acsomega.1c00510