University Links: Home Page | Site Map
Covenant University Repository

Tunable morphological properties of silver enriched platinum allied nanoparticles and their catalysed reduction of p-nitrophenol

Adekoya, J. A. and Dare, E.O and Mesubi, M. A. (2014) Tunable morphological properties of silver enriched platinum allied nanoparticles and their catalysed reduction of p-nitrophenol. Advances in Natural Sciences: Nanoscience and Nanotechnology, 5 (3). p. 12.

[img] PDF
Download (3956Kb)

Abstract

A robust polymer based and polyol mediated procedure to synthesize nanobimetallic particles has been modified to produce core–shell and alloy Ag/Pt nanoparticles with tunable properties. Novel three-dimensional (3D) quasi nanocubes entangled in nanowebs were produced by rapid solution phase transformation with hot addition of absolute ethanol. The optical characterization showed extinction of plasmon resonance band occurring with incremental feeding ratio of Pt source in all cases. Transmission electron microscope (TEM) and high resolution transmission electron microscope (HRTEM) images revealed that the shape, size and size distribution of asprepared silver platinum nanoparticles depended on the stabilizer or capping agent, mole ratio of metal ion sources, temperature and time of reaction. Meanwhile, catalytic activity was highest in the reduction of p-nitrophenol in the presence of polyvinylpyrrolidone/diethylene glycol stabilized Ag/Pt nanoparticles.

Item Type: Article
Uncontrolled Keywords: tunable morphological properties, bimetallic nanoparticles, p-nitrophenol Classification numbers: 2.00, 2.03, 2.04, 4.00
Subjects: Q Science > QD Chemistry
Divisions: Faculty of Engineering, Science and Mathematics > School of Chemistry
Depositing User: Dr Joseph Adeyemi Adekoya
Date Deposited: 09 Apr 2015 11:09
Last Modified: 09 Oct 2015 12:13
URI: http://eprints.covenantuniversity.edu.ng/id/eprint/4734

Actions (login required)

View Item View Item