Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/17744
Title: Synthesis and characterization of cyclodextrin capped AU and AG nanoparticles
Authors: YANG JIEXIANG
Keywords: nanoparticles, cyclodextrin, Au, Ag, core@shell, alloy
Issue Date: 18-Jan-2010
Citation: YANG JIEXIANG (2010-01-18). Synthesis and characterization of cyclodextrin capped AU and AG nanoparticles. ScholarBank@NUS Repository.
Abstract: This thesis illustrates the studies made on synthesis and characterization of nanoparticles. Chapter 1 provides an introductory outline on the various preparation and characterization of nanoparticles with attention given to materials that contain metals. Preparation of silver, gold and copper monometallic nanoparticles protected by beta-cyclodextrin was attempted and presented in Chapter 2. The synthetic steps involve the effective use of beta-cyclodextrin as both a reducing and stabilizing agent, and results in self-assembled chains. The factors that cause such self-assembly were explored and discussed. In Chapter 3, stable silver-gold monodispersed alloy nanoparticles were synthesized via a co-reduction method. These alloyed nanoparticles were used as precursor for the formation of gold core and silver iodide shell particles, with the addition of iodine. The synthesis works on a diffusion mechanism, where silver atoms move towards the surface to form silver iodide shell in reaction with the iodine. Characterization of these materials prepared was made using TEM, UV-visible absorption spectroscopy, and electron diffraction.
URI: http://scholarbank.nus.edu.sg/handle/10635/17744
Appears in Collections:Master's Theses (Open)

Show full item record
Files in This Item:
File Description SizeFormatAccess SettingsVersion 
YangJx.pdf2.33 MBAdobe PDF

OPEN

NoneView/Download

Page view(s)

389
checked on Oct 28, 2018

Download(s)

814
checked on Oct 28, 2018

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.