Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.jcis.2005.03.076
Title: Solvent-induced shape evolution of PVP protected spherical silver nanoparticles into triangular nanoplates and nanorods
Authors: Deivaraj, T.C. 
Lala, N.L. 
Lee, J.Y. 
Keywords: Ag nanoparticles
Nanoplates
Nanoprisms
Ostwald ripening
Poly(N-vinyl-2-pyrrolidone) (PVP)
Issue Date: 15-Sep-2005
Source: Deivaraj, T.C., Lala, N.L., Lee, J.Y. (2005-09-15). Solvent-induced shape evolution of PVP protected spherical silver nanoparticles into triangular nanoplates and nanorods. Journal of Colloid and Interface Science 289 (2) : 402-409. ScholarBank@NUS Repository. https://doi.org/10.1016/j.jcis.2005.03.076
Abstract: The reaction between silver nitrate and poly(N-vinyl-2-pyrrolidone) (PVP) in pyridine at ambient conditions could lead to the formation of spherical nanoparticles or quadrilateral and triangular silver nanoplates, depending on the silver-to-PVP ratio used. It is proposed that the spherical Ag nanoparticles, which were formed early in the reaction, were transformed into nanoplates through an Ostwald ripening process driven by the bridging flocculation of small spherical Ag nanoparticles. This unique and hitherto unreported shape evolution process was carefully followed by a combination of techniques, viz., UV-visible spectroscopy, TEM, and powder X-ray diffraction. © 2005 Elsevier Inc. All rights reserved.
Source Title: Journal of Colloid and Interface Science
URI: http://scholarbank.nus.edu.sg/handle/10635/51816
ISSN: 00219797
DOI: 10.1016/j.jcis.2005.03.076
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