Effect of Ni-doping on the initial electrochemical performance of Vanadium oxide nanotubes for Na ion batteries
Journal
ACS Applied Materials and Interfaces
Date
2014.06.24
Abstract
In this communications, successful Na intercalation was demonstrated in hydrothermally synthesized VOx nanotubes and Ni-doped VOx nanotubes. The structural evolution during Na intercalation process was investigated by XRD analysis. Additionally, increased initial capacity was observed from the Ni-doped VOx NTs, synthesized by cationic exchange reaction. XPS analysis confirmed that the higher initial capacity is attributed to the increased valence states of Vanadium after Ni exchange process. .