Gamma Radiolytic Formation of Alloyed Ag-Pt Nanocolloids
Joint Authors
Bellare, Jayesh
Temgire, M. K.
Joshi, S. S.
Source
Advances in Physical Chemistry
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-04-05
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Colloidal dispersions of Ag-Pt composite nanoparticles were prepared by gamma radiolysis technique in the presence of nonionic surfactant Brij'97.
Simultaneous as well as sequential reduction methods were employed in order to study the structural formation of Ag-Pt bimetallic clusters.
Similar shape and trend was observed in optical spectra for both methods.
Radiolysis yielded nearly spherical Ag-Pt bimetallic clusters by use of AgNO3 instead of AgClO4.
The disappearance of the silver resonance and the simultaneous growth of the 260 nm resonance are independent of cluster structure and degree of alloying.
To understand formation of Ag-Pt aggregate, the optical studies were also done as a function of amount of dose absorbed, concentration of surfactant, that is, Brij'97.
The shape of the absorption spectrum did not change with increase in gamma radiation dose.
TEM analysis exhibited fine dispersions of Ag-Pt clusters surrounded by a mantle when capped with Brij'97.
The particle size obtained was in the range of 5–9 nm.
On the basis of optical, XRD, and TEM analysis, alloy formation is discussed.
American Psychological Association (APA)
Temgire, M. K.& Bellare, Jayesh& Joshi, S. S.. 2011. Gamma Radiolytic Formation of Alloyed Ag-Pt Nanocolloids. Advances in Physical Chemistry،Vol. 2011, no. 2011, pp.1-9.
https://search.emarefa.net/detail/BIM-457265
Modern Language Association (MLA)
Temgire, M. K.…[et al.]. Gamma Radiolytic Formation of Alloyed Ag-Pt Nanocolloids. Advances in Physical Chemistry No. 2011 (2011), pp.1-9.
https://search.emarefa.net/detail/BIM-457265
American Medical Association (AMA)
Temgire, M. K.& Bellare, Jayesh& Joshi, S. S.. Gamma Radiolytic Formation of Alloyed Ag-Pt Nanocolloids. Advances in Physical Chemistry. 2011. Vol. 2011, no. 2011, pp.1-9.
https://search.emarefa.net/detail/BIM-457265
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-457265