MOESM1 of Facile aqueous-phase synthesis of Ag–Cu–Pt–Pd quadrometallic nanoparticles

Additional file 1: Figure S1. (a) size distribution of nanoparticles, (b) XRD patterns of synthesized Cu-Ag-Pt-Pd nanoparticles. Figure S2. UV-vis spectrum of prepared Ag-Cu bimetallic nanoparticles. Table S1. ICP data of Cu-Ag-Pt-Pd nanoparticles.