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Novel bimetallic Au/Ag superstructures have been prepared from solid-state pyrolysis of the macromolecular complexes Chitosan(MLn/M'Ln) n y PSP-4-PVP×( MLn/M'Ln)n with MLn = AuCl 3 and M'Ln = Ag(CF 3 SO 3 ).The characterization was made from XRD (X-ray diffraction of powder), SEM and EDS analysis. Morphologies are influenced by both the nature of the polymer and the metal/polymer, molar ratio of the polymer precursor. EDS analysis suggests a core/shell Au/Ag structure for the materials. Adoi:10.4067/s0717-97072013000400019 fatcat:wg7yxggwy5erxiicmfxxqenrl4