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Two-Dimensional Crystalline Lattice Templating: A New Method for the Preparation of Polymer-Covered Metal and Alloyed Metal Nanorods by a Redox Process.

Published online by Cambridge University Press:  01 February 2011

Alexandru C. Pavel ,
Dwight K. Romanovicz ,
Miguel J. Yacaman  and
John T. McDevitt
Alexandru C. Pavel
Affiliation:
Department of Chemistry & Biochemistry, University of Texas at Austin, 1 University Station A5300, Austin, Texas 78712–0165
Dwight K. Romanovicz
Affiliation:
Department of Chemistry & Biochemistry, University of Texas at Austin, 1 University Station A5300, Austin, Texas 78712–0165
Miguel J. Yacaman
Affiliation:
Department of Chemical Engineering, University of Texas at Austin, 1 University Station C0400, Austin, Texas 78712–0231
John T. McDevitt
Affiliation:
Department of Chemistry & Biochemistry, University of Texas at Austin, 1 University Station A5300, Austin, Texas 78712–0165
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Abstract

We demonstrate in this paper that two-dimensional (2-D) layered ceramics, materials that are highly anisotropic in terms of structure and properties can be used to induce the formation of polymer-covered metal nanorods. The procedure took advantage of the intrinsic planar, layered ordering of the metal cations suitable to be reduced and can be further used to engineer one-dimensional (1-D) metal alloy nanostructures by appropriate doping of the initial layered ceramic lattice with suitable cationic species. The procedure involved the formation in an intermediate step of a polymer-layered ceramic nanocomposite, highly porous to the diffusion of the reducing agent. Two structurally similar layered bismuthates, Bi2Sr2CaCu2O8+δ and Bi6Sr2CaO12 were used as the precursor layered ceramics and the redox-active metal cations were Cu2+ and Bi3+.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 847: Symposium EE – Organic/Inorganic Hybrid Materials , 2004 , EE13.45
Copyright
Copyright © Materials Research Society 2005

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References

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