Size Controlled Synthesis of 2-6 nm Gold Nanoparticles via Controlling Concentration of the Reducing Agent and Temperature

Autor:	Fei Wang, Wei Luo, Jing Yue Fang, Xue Ao Zhang, Sheng Li Chang, Zheng Zheng Shao, Shi Qiao Qin
Rok vydání:	2012
Předmět:	Materials science Reducing agent Dispersity General Engineering Nanotechnology Toluene Solvent chemistry.chemical_compound chemistry Chemical engineering Colloidal gold Amine gas treating Particle size Plasmon
Zdroj:	Advanced Materials Research. :572-576
ISSN:	1662-8985
DOI:	10.4028/www.scientific.net/amr.557-559.572
Popis:	We reported a facile synthesis route for size controlled preparation of gold nanoparticles (Au NPs) by controlling concentration of the reducing agent and temperature. Nearly monodisperse Au NPs with mean diameters of 2-6 nm are acquired via the reduction of HAuCl4by NaBH4in the presence of tri-n-octyl amine and dodecanethiol in solvent of toluene. Results indicate that concentration of the reducing agent and temperature are key factors to tune the particle size and uniformity in the synthesis of Au NPs. The as-synthesized Au NPs show size dependent surface plasmonic properties between 510 and 525 nm, while Au NPs with size smaller than 3 nm do not clearly show the property.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::dc6795754288346df3eed48f18fc0516 https://doi.org/10.4028/www.scientific.net/amr.557-559.572 Zobrazit plný text záznamu