Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/36337
Title: Preparation of nanostructured metals on substrates and textile for electrocatalytic and antibacterial applications.
Authors: CHO SWEE JEN
Keywords: Metal nanoparticles, ethylene glycol, vapor reduction, catalytic, Dye-sensitized solar cells, antibacteria
Issue Date: 3-Aug-2012
Source: CHO SWEE JEN (2012-08-03). Preparation of nanostructured metals on substrates and textile for electrocatalytic and antibacterial applications.. ScholarBank@NUS Repository.
Abstract: This thesis presents facile methods to effectively deposit metal nanoparticles without capping ligands on substrate. There are two approaches to deposit nanostructured metals on substrates which are two-step reduction of metal precursor by ethylene glycol (EG) solution and solvent-free chemical reduction of metal precursors by EG vapor. The advantages of these methods include the in-situ formation of metal nanostructures onto the substrates with good adhesion, without the presence of binding agents. Several morphologies of nanostructured metals have been developed such as porous platinum, triangular gold nanoplates, dendritic palladium nanostructures. The formation of different morphologies of metal nanostructures is related to the surface energy of the metals. These metal nanostructures have demonstrated high efficiency as a catalyst in fuel cells, dye-sensitized solar cells (DSSCs) with the light conversion efficiency of 8% and excellent anti-bacterial activities against Escherichia coli and Staphylococus epidermidis bacteria after 1 hour of dynamic contact in aqueous media.
URI: http://scholarbank.nus.edu.sg/handle/10635/36337
Appears in Collections:Ph.D Theses (Open)

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