TNAs （Titanium dioxide nanotube arrays） were synthesized by electrochemical anodization and these TNAs were annealed in different gas atmosphere such as argon, air, hydrogen and nitrogen. This annealing in different atmosphere brought variation in crystallite size （27 - 33 nm）, which influences on electrochemical properties. The specific capacity of Ar, Air, N2 and H2-annealed TNAs was around ~165, 185, 177 and 190 mAh g~, respectively. The crystallite size of anatase TNAs seemed to be responsible for the change in lithium storage capacity, indicating that structural changes of TNAs were playing major role in electrochemical properties.
Tauseef AnwarWang LiNaveed HussainWang ChenRizwan Ur Rehman SagartLiang Tongxiang
