Electrochemical Synthesis of Vanadium Oxide Nanofibers

We report on the synthesis and characterization of nanofibrous structures of vanadium oxide by anodic electrodeposition. The electrodeposits are thick layers of several micrometers consisting of fibers with length in the micrometer range and a width of about . At variance with available reports, the vanadium oxide nanofibers were obtained without the use of templates or additives. Electrochemical synthesis was performed in aqueous solutions containing and . The observed spongelike structure, and consequent large surface area, with strong entanglement of the nanofibers are potentially important material features for applications such as gas sensors, lithium batteries, and catalysis.