Synthesis of bismuth with various morphologies by electrodeposition

Metal bismuth with various morphologies, with particle size from nanometer to micrometer, has been successfully prepared by electrodeposition onto Pt, Au, Al and ITO electrodes at room temperature. The size and morphology of the deposits are strongly dependent on preparation conditions, such as deposition potential, current density, electrode and electrolyte. As observed by scanning and transmission electron microscopes, the deposited Bi particles exhibit plentiful appearances, such as prickly rod, banch, skeleton and strip-like shapes. A significant positive magnetoresistence effect is observed even at room temperature. (C) 2003 Elsevier Science B.V. All rights reserved.