nanostructured materials via galvanic displacement have mainly focused on the metals including Au, Pd, Pt, Ag, Cu, Ni and Pb [24,26-30], the binary intermetallic compounds such as Bi-Te [31], Pd-Ag and Pt-Ag [32].In this paper, we report the synthesis of indium nanowires by galvanic displacement on a zinc sheet after being treated in concentrated sulphuric acid.