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Scheme 1 Schematic representation of the formation of Ag-NPs or Ag-
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1
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D-structures coated with POM. POM(ne ) stands for POM/V(IV)
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can be in strong interaction with POMs as already observed by
3
3
Neumann et al. The presence of POMs deposited on the metallic
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crystallization direction for their merging in 1D-structures. The
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1
15 C. J. Murphy, A. M. Gole, S. E. Hunyadi and C. J. Orendorff, Inorg.
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1
D-structures is quenched at 4 uC (Scheme 1). Several trends can
6
be inferred from our first experiments. At micrometric scale, the
variation of the reducing properties of V(IV), depending on its
location as part of the structure or as counter-cation, doesn’t seem
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1
J. G. Zheng, Science, 2001, 294, 1901.
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D-structure, while increasing the Ag/POM ratio seems to favour
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2
4 T. Thurn-Albrecht, J. Schotter, G. A. K a¨ stle, N. Emley, T. Shibauchi,
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interesting as it generates silver 1D-structures with micrometric
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are a perfectly adapted active substrate for SERS detection.
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752 | Chem. Commun., 2007, 3750–3752
This journal is ß The Royal Society of Chemistry 2007