Template-based growth of V_2O_5 nanorods by electrodeposition

摘要

Template-based growth of single crystal V_2O_5 nanorods by either electrochemical or electrophoretic deposition was studied. Specifically, standard electrochemical deposition from VOSO_4 solution, electrochemically induced deposition by local pH change of VO_2~+ solution, and electrophoretic deposition of nanoclusters in V_2O_5 sol were investigated. From each route, uniformly sized V_2O_5 nanorods about 10 μm in length were grown over large area with nearly unidirectional alignment, but with various extent of lateral shrinkage when fired at 500℃. These grown V_2O_5 nanorods all have the same single-crystal structure, regardless of deposition method and initial solutions or sol used.