کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
613938 880733 2006 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Room-temperature strategy for networked nonspherical gold nanostructures from Au(III)[G-2]CO2H dendrimer complex
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
Room-temperature strategy for networked nonspherical gold nanostructures from Au(III)[G-2]CO2H dendrimer complex
چکیده انگلیسی

The present work describes a convenient approach to fabricate networked nonspherical gold nanostructures by using [G-2]CO2H dendrimer and toluene as capping and bridging agents in a CH2Cl2 and H2O biphasic system. A controlled linear assembly is achieved without the use of any catalyst at room temperature. UV–vis spectrum, transmission electron microscopy (TEM), selected area electron diffraction (SAED), and X-ray diffraction (XRD) analysis show that the product is well networked nanostructures with diameter of 4–10 nm and consists of coalesced face-centered cubic gold nanocrystals. Extended experiments reveal that both benzene and dimethylbenzene can also inhabit the gold ions to make them crosslinked, prolong the nucleation points and eventually facilitate the formation of the networks.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Colloid and Interface Science - Volume 293, Issue 2, 15 January 2006, Pages 409–413
نویسندگان
, , , , ,