Structure Determination of Chitosan-Stabilized Pt and Pd Based Bimetallic Nanoparticles by X-Ray Photoelectron Spectroscopy and Transmission Electron Microscopy

Chitosan (CTS)-stabilized bimetallic nanoparticles were prepared at room temperature (rt.) in aqueous solution. Palladium (Pd) and platinum (Pt) were selected as the first metals while iron (Fe) and nickel (Ni) functioned as the second metals. In order to obtain the noble metal core-transition met...

Full description

Bibliographic Details
Main Authors:	Mohd Ridzuan, Nordin, Shafii, Salimah, Wu, Lihua, Liew, Kong Yong, Li, Jinlin
Format:	Article
Published:	Elsevier 2012
Subjects:	QD Chemistry
Online Access:	http://umpir.ump.edu.my/id/eprint/4533/ http://umpir.ump.edu.my/id/eprint/4533/ http://umpir.ump.edu.my/id/eprint/4533/

id	ump-4533
recordtype	eprints
spelling	ump-45332014-03-04T06:52:10Z http://umpir.ump.edu.my/id/eprint/4533/ Structure Determination of Chitosan-Stabilized Pt and Pd Based Bimetallic Nanoparticles by X-Ray Photoelectron Spectroscopy and Transmission Electron Microscopy Mohd Ridzuan, Nordin Shafii, Salimah Wu, Lihua Liew, Kong Yong Li, Jinlin QD Chemistry Chitosan (CTS)-stabilized bimetallic nanoparticles were prepared at room temperature (rt.) in aqueous solution. Palladium (Pd) and platinum (Pt) were selected as the first metals while iron (Fe) and nickel (Ni) functioned as the second metals. In order to obtain the noble metal core-transition metal shell structures, bimetallic nanoparticles were prepared in a two-step process: the preparation of mono noble metallic (Pd or Pt) nanoparticles and the deposition of transition metals (Fe or Ni) on the surface of the monometallic nanoparticles. The structures of the nanoparticles were studied using X-ray photoelectron spectroscopy (XPS) and transmission electron microscopy (TEM). The XPS results show that Pd and Pt exist mainly in zero valences. The presence of Fe and Ni in the bimetallic nanoparticles affects the binding energy of Pd and Pt. Moreover, the studies of O 1s spectra indicate the presence of Fe or Ni shells. The analyses of TEM micrographs give the particle size and size distributions while the high-resolution TEM (HRTEM) micrographs show the existence of noble metal core lattices. The results confirm the formation of noble metal core-transition metal shell structures Elsevier 2012 Article PeerReviewed Mohd Ridzuan, Nordin and Shafii, Salimah and Wu, Lihua and Liew, Kong Yong and Li, Jinlin (2012) Structure Determination of Chitosan-Stabilized Pt and Pd Based Bimetallic Nanoparticles by X-Ray Photoelectron Spectroscopy and Transmission Electron Microscopy. Materials Chemistry and Physics, 137 (2). pp. 493-498. ISSN 0254-0584 http://dx.doi.org/10.1016/j.matchemphys.2012.09.045 DOI: 10.1016/j.matchemphys.2012.09.045
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
topic	QD Chemistry
spellingShingle	QD Chemistry Mohd Ridzuan, Nordin Shafii, Salimah Wu, Lihua Liew, Kong Yong Li, Jinlin Structure Determination of Chitosan-Stabilized Pt and Pd Based Bimetallic Nanoparticles by X-Ray Photoelectron Spectroscopy and Transmission Electron Microscopy
description	Chitosan (CTS)-stabilized bimetallic nanoparticles were prepared at room temperature (rt.) in aqueous solution. Palladium (Pd) and platinum (Pt) were selected as the first metals while iron (Fe) and nickel (Ni) functioned as the second metals. In order to obtain the noble metal core-transition metal shell structures, bimetallic nanoparticles were prepared in a two-step process: the preparation of mono noble metallic (Pd or Pt) nanoparticles and the deposition of transition metals (Fe or Ni) on the surface of the monometallic nanoparticles. The structures of the nanoparticles were studied using X-ray photoelectron spectroscopy (XPS) and transmission electron microscopy (TEM). The XPS results show that Pd and Pt exist mainly in zero valences. The presence of Fe and Ni in the bimetallic nanoparticles affects the binding energy of Pd and Pt. Moreover, the studies of O 1s spectra indicate the presence of Fe or Ni shells. The analyses of TEM micrographs give the particle size and size distributions while the high-resolution TEM (HRTEM) micrographs show the existence of noble metal core lattices. The results confirm the formation of noble metal core-transition metal shell structures
format	Article
author	Mohd Ridzuan, Nordin Shafii, Salimah Wu, Lihua Liew, Kong Yong Li, Jinlin
author_facet	Mohd Ridzuan, Nordin Shafii, Salimah Wu, Lihua Liew, Kong Yong Li, Jinlin
author_sort	Mohd Ridzuan, Nordin
title	Structure Determination of Chitosan-Stabilized Pt and Pd Based Bimetallic Nanoparticles by X-Ray Photoelectron Spectroscopy and Transmission Electron Microscopy
title_short	Structure Determination of Chitosan-Stabilized Pt and Pd Based Bimetallic Nanoparticles by X-Ray Photoelectron Spectroscopy and Transmission Electron Microscopy
title_full	Structure Determination of Chitosan-Stabilized Pt and Pd Based Bimetallic Nanoparticles by X-Ray Photoelectron Spectroscopy and Transmission Electron Microscopy
title_fullStr	Structure Determination of Chitosan-Stabilized Pt and Pd Based Bimetallic Nanoparticles by X-Ray Photoelectron Spectroscopy and Transmission Electron Microscopy
title_full_unstemmed	Structure Determination of Chitosan-Stabilized Pt and Pd Based Bimetallic Nanoparticles by X-Ray Photoelectron Spectroscopy and Transmission Electron Microscopy
title_sort	structure determination of chitosan-stabilized pt and pd based bimetallic nanoparticles by x-ray photoelectron spectroscopy and transmission electron microscopy
publisher	Elsevier
publishDate	2012
url	http://umpir.ump.edu.my/id/eprint/4533/ http://umpir.ump.edu.my/id/eprint/4533/ http://umpir.ump.edu.my/id/eprint/4533/
first_indexed	2023-09-18T21:59:12Z
last_indexed	2023-09-18T21:59:12Z
_version_	1777414284498698240

Structure Determination of Chitosan-Stabilized Pt and Pd Based Bimetallic Nanoparticles by X-Ray Photoelectron Spectroscopy and Transmission Electron Microscopy

Similar Items