General fabrication of mesoporous Nb2O5 nanobelts for lithium ion battery anodes†
Abstract
Mesoporous Nb2O5 nanobelts (NBs) have been synthesized by sequential thermal treatment of solid Nb2O5 NBs in NH3 and air, which exhibit better crystallinity and a larger specific area (29.76 m2 g−1) than that of solid Nb2O5 NBs (8.86 m2 g−1) and exhibit a high capacity and good rate capability.