Abstract
Niobium oxide has been extensively investigated as a promising anode material owing to its special structure and excellent electrochemical performance. Herein, Multiwalled carbon nanotube (MWCNT)-modified Nb2O5 is prepared by using a simple hydrothermal method. The morphologies tests show a uniform particle size of Nb2O5 and the average distribution of MWCNTs between nanoparticles. The electronic and ion conductivity of Nb2O5 can be improved by the MWCNT modification. The fabricated Nb2O5-MWCNT composites deliver superior electrochemical performance than the pristine Nb2O5 and MWCNT. Ex situ tests reveal that the capacity of Nb2O5 is mainly provided by the Nb4+/Nb5+ electrochemical couple.
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