Solvent-induced shape evolution of PVP protected spherical silver nanoparticles into triangular nanoplates and nanorods.

@article{citeulike:1670753, 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.}, address = {Singapore-MIT Alliance, National University of Singapore, Singapore 117576.}, author = {Deivaraj, T. C. and Lala, N. L. and Lee, J. Y. }, citeulike-article-id = {1670753}, doi = {10.1016/j.jcis.2005.03.076}, issn = {0021-9797}, journal = {J Colloid Interface Sci}, keywords = {nanopaltes, nanoparticles, nanoprisms, nanorods, prisms, pvp, shape, silver, solvent, spheres, synthesis, triangular}, month = {September}, number = {2}, pages = {402--409}, posted-at = {2007-09-18 21:59:00}, priority = {2}, title = {Solvent-induced shape evolution of PVP protected spherical silver nanoparticles into triangular nanoplates and nanorods.}, url = {http://dx.doi.org/10.1016/j.jcis.2005.03.076}, volume = {289}, year = {2005} }

TY - JOUR ID - citeulike:1670753 L3 - citeulike-article-id:1670753 TI - Solvent-induced shape evolution of PVP protected spherical silver nanoparticles into triangular nanoplates and nanorods. JF - J Colloid Interface Sci VL - 289 IS - 2 SP - 402 EP - 409 AD - Singapore-MIT Alliance, National University of Singapore, Singapore 117576. SN - 0021-9797 N2 - 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. KW - nanopaltes KW - nanoparticles KW - nanoprisms KW - nanorods KW - prisms KW - pvp KW - shape KW - silver KW - solvent KW - spheres KW - synthesis KW - triangular AU - Deivaraj, TC AU - Lala, NL AU - Lee, JY PY - 2005/09/15/ UR - http://dx.doi.org/10.1016/j.jcis.2005.03.076 ER -