Synthesis and Electrochemical Properties of Single-Crystal V₂O₅ Nanorod Arrays by Template-Based Electrodeposition

Abstract

This paper reports a study on template-growth and electrochemical properties of single-crystal vanadium pentoxide (V 2 O 5 ) nanorod arrays from VOSO 4 aqueous solution using electrochemical deposition. Uniformly sized vanadium oxide nanorods with a length of about 10 µm with diameters ranging from 100 to 200 nm were grown over a large area with near unidirectional alignment. These nanorods have single-crystalline structure with a growth direction of [010]. Electrochemical property analysis indicates that nanorod array electrodes have significantly higher current density and energy storage density than sol-gel-derived V 2 O 5 films.

Developments in Nanostructured Cathode Materials for High‐Performance Lithium‐Ion Batteries

“…Synthesis and electrochemical properties of single-crystal V 2 O 5 nanorod arrays were first reported by Cao's group. [62][63][64] They utilized a template-based electrodeposition method by depositing V 2 O 5 into pores of polycarbonate templates with the assistance of electric field from three different types of solutions or sol, that is, VO 2þ solution, VO 2 þ solution, and …”

Template-based syntheses for shape controlled nanostructures

“…Once the polystyrene was removed afterwards, a highly ordered two-dimensional metallic nanostructure remained. This methodology has been successfully reproduced using other metals, metal oxides, and semiconducting materials such as Au [275], Co 3 O 4 [276], ZnO [277], MnO [278], CdSe [279], and V 2 O 5 [280]. With other two-dimensional structure promoting templates, such as graphene or carbon nanotubes, unusual two-dimensional nanostructures such as Mn nanoflowers [281], ZnO nanoflowers [282], and Co 3 O 4 nanoflakes [283] can also be produced through electrodeposition.…”

Vanadium oxide nanorings: Facile synthesis, formation mechanism and electrochemical properties

“…Although various methods are available for the synthesis of low dimensional V2O5 nanostructured electrode materials [19][20][21][22][23][24][25], many of them suffer from the limits of high temperatures, special equipment's and/or special experimental conditions. The hydrothermal synthesis remains interesting because it is a powerful tool to transform transition metal oxides into high quality nanostructures and nanostructured vanadium oxides in different morphologies besides lower temperature involved in the cost effective environmentally benign process.…”