2010/01/01 by D. M. Yu, Danmei Yu, S. T. Zhang +10
Engineering · Materials Science · #Advancements in Battery Materials #Transition Metal Oxide Nanomaterials #ZnO doping and properties
paper · doi:10.1039/c0jm01252a
openalex publication_date 2010/01/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/30
Mn-doped V2O5 has been prepared by sol–gel processing with H2O2 and V2O5 as precursors with Mn2+ added directly during sol preparation. Stable and homogeneous Mn-doped vanadium oxide sol was obtained and the films were fabricated by dip-coating, drying at ambient, and then annealing at 250 °C in air for 3 h. X-Ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), atomic force microscopy (AFM), and electrochemical analyses have been employed to characterize and analyze the crystal- and microstructures, surface morphology and Li-ion intercalation properties of both Mn-doped and undoped V2O5 films. Mn-doped V2O5 films exhibit excellent cyclic stability with a fading rate of less than 0.06% per cycle, significantly better than that of the pure V2O5 films (0.8% per cycle). Mn-doped V2O5 films have demonstrated a large discharge capacity of ∼283mAh/g with a current density of 68 mA/g, again much higher than 237 mAh/g of V2O5 films. A possible explanation for such significant enhancement in lithium ion intercalation capacity, cyclic stability, and rate performance of Mn-doped V2O5 films has been discussed.