Ultrahigh intercalation pseudocapacitance of mesoporous orthorhombic niobium pentoxide from a novel cellulose nanocrystal template

We developed a facile and sustainable method to prepare T-Nb2O5 nanocrystals using novel nanorod-like cellulose nanocrystals (CNs) as soft templates. The T-Nb2O5 nanocrystals exhibited unprecedented Li+ intercalation pseudocapacitance, excellent cycle performance and good high-and-low temperature tolerance performance.