Synthesis Of Cevo4-V2o5 Nanowires By Cation-Exchange Method For High-Performance Lithium-Ion Battery Electrode

In the current work, a facile and scalable strategy, based on a cation-exchange and heat-treatment route, is developed to fabricate CeVO4-V2O5 nanowires on Ti foil. The CeVO4-V2O5 nanowires are obtained by the cation-exchange of the sodium vanadate (Na5V12O32) nanowires as precursor in cerium chloride and the sample obtained by heat-treatment at 300 degrees C has high-performance lithium storage properties. In addition, the microstructure, phase composition and chemical valence of CeVO4-V2O5 nanowires are characterized in detail. After 50 cycles, the CeVO4-V2O5 electrode reaches a high reversible capacity of approximately 487 mAh g-1 at a current density of 30 mA g-1. Moreover, the cation-exchange method also paves an efficient and controllable route for the synthesis of other rare earth vanadate-V2O5 composites. (c) 2021 Elsevier B.V. All rights reserved.