Effects of Ar or O2 Gas Bubbling for Shape, Size, and Composition Changes in Silver-Gold Alloy Nanoparticles Prepared from Galvanic Replacement Reaction
Joint Authors
Alam, Md. Jahangir
Tsuji, Masaharu
Source
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-09-26
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
The galvanic replacement reaction between silver nanostructures and AuCl4- solution has recently been demonstrated as a versatile method for generating metal nanostructures with hollow interiors.
Here we describe the results of a systematic study detailing the morphological, structural, compositional, and spectral changes involved in such a heterogeneous reaction on the nanoscale.
Effects of Ar or O2 gas bubbling for the formation of Ag-Au alloy nanoparticles by the galvanic replacement between spherical Ag nanoparticles and AuCl4- especially were studied in ethylene glycol (EG) at 150°C.
The shape, size, and composition changes occur rapidly under O2 bubbling in comparison with those under Ar bubbling.
The major product after 60 min heating under Ar gas bubbling was perforated Ag-Au alloy particles formed by the replacement reaction and the minor product was ribbon-type particles produced from splitting off some perforated particles.
On the other hand, the major product after 60 min heating under O2 gas bubbling was ribbon-type particles.
In addition, small spherical Ag particles are produced.
They are formed through rereduction of Ag+ ions released from the replacement reaction and oxidative etching of Ag nanoparticles by O2/Cl− in EG.
American Psychological Association (APA)
Alam, Md. Jahangir& Tsuji, Masaharu. 2013. Effects of Ar or O2 Gas Bubbling for Shape, Size, and Composition Changes in Silver-Gold Alloy Nanoparticles Prepared from Galvanic Replacement Reaction. Journal of Nanomaterials،Vol. 2013, no. 2013, pp.1-10.
https://search.emarefa.net/detail/BIM-1007772
Modern Language Association (MLA)
Alam, Md. Jahangir& Tsuji, Masaharu. Effects of Ar or O2 Gas Bubbling for Shape, Size, and Composition Changes in Silver-Gold Alloy Nanoparticles Prepared from Galvanic Replacement Reaction. Journal of Nanomaterials No. 2013 (2013), pp.1-10.
https://search.emarefa.net/detail/BIM-1007772
American Medical Association (AMA)
Alam, Md. Jahangir& Tsuji, Masaharu. Effects of Ar or O2 Gas Bubbling for Shape, Size, and Composition Changes in Silver-Gold Alloy Nanoparticles Prepared from Galvanic Replacement Reaction. Journal of Nanomaterials. 2013. Vol. 2013, no. 2013, pp.1-10.
https://search.emarefa.net/detail/BIM-1007772
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1007772