Formation mechanism of silver nanoparticle 1D microstructures and their hierarchical assembly into 3D superstructures

Nanoscale
Lorenza Suber, William R Plunkett

Abstract

Flower-like silver nanoparticle superstructures are prepared by the reaction of silver nitrate and ascorbic acid in an acidic aqueous solution of a polynaphthalene system. The three-dimensional flower-like structure has a purely hierarchic arrangement, wherein each petal is composed of bundles of silver particle chains, each enclosed in a polymer sheath. The ordering arises from strong adsorption of silver ions onto the polymer and by the interplay of the redox properties of nitric and ascorbic acid. As a result, linear silver cyanide, formed on the polymer, probably due to intrinsic electric dipole fields, organizes the silver particle chains in dumbbell-like structures, resembling buds and flower-like structures. By dilution and heating of the mother liquors, it is also possible to obtain single petals, i.e. micrometer sized bundles of linearly aggregated silver nanoparticle chains, each enclosed in a polymer sheath.The comprehension of the hierarchic assembly of silver nanoparticles, paves the way to a facile general method to prepare polymer-metal nanoparticle chains and flower-like superstructures.The results of this study improve both the understanding of the formation mechanism of hierarchic structures at mild temperatur...Continue Reading

References

Feb 1, 1979·The Biochemical Journal·A I Al-Ayash, M T Wilson
Oct 24, 2001·Inorganic Chemistry·Graham A. BowmakerJason C. Reid
Dec 14, 2002·Science·Yugang Sun, Younan Xia
Jun 2, 2005·Journal of Colloid and Interface Science·Lorenza SuberDan V Goia
Jun 17, 2005·Chemical Communications : Chem Comm·Mark Green
Jun 17, 2006·Chemical Communications : Chem Comm·Yannick GuariChristian Guérin
Jul 21, 2006·The Journal of Physical Chemistry. B·Catherine J MurphyTan Li
Jul 21, 2006·The Journal of Physical Chemistry. B·Andrei F KostkoSrinivasa R Raghavan
Apr 25, 2007·Journal of Colloid and Interface Science·Wei SongBing Zhao
Jul 7, 2007·The Journal of Chemical Physics·Dong-ki LeeGwang-Hi Jeung
Jul 26, 2007·Langmuir : the ACS Journal of Surfaces and Colloids·Xuping Sun, Matthias Hagner
Aug 7, 2007·Angewandte Chemie·Yujie XiongYounan Xia
Dec 20, 2007·Optics Letters·M QuintenF R Aussenegg
Apr 11, 2008·Dalton Transactions : an International Journal of Inorganic Chemistry·Markus AntoniettiBernd Smarsly

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